大学英语精读第三版第四册课本教学材料及课本教材翻译

大学英语精读第三版第四册课文及课文翻译

Unit 1

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Two college-age boys, unaware that making money usually involves hard work, are tempted by an advertisement that promises them an easy way to earn a lot of money. The boys soon learn that if something seems to good to be true, it probably is.

BIG BUCKS THE EASY WAY

John G. Hubbell

"You ought to look into this," I suggested to our two college-age sons. "It might be a way to avoid the indignity of having to ask for money all the time." I handed them some magazines in a plastic bag someone bad hung on our doorknob. A message printed on the bag offered leisurely, lucrative work ("Big Bucks the Easy Way!") of delivering more such bags.

"I don't mind the indignity," the older one answered.

"I can live with it," his brother agreed.

"But it pains me," I said，"to find that you both have been panhandling so long that it no longer embarrasses you."

The boys said they would look into the magazine-delivery thing. Pleased, I left town on a business trip. By midnight I was comfortably settled in a hotel room far from home. The phone rang. It was my wife. She wanted to know how my day had gone.

"Great!" I enthused. "How was your day?" I inquired.

"Super!" She snapped. "Just super! And it's only getting started. Another truck just pulled up out front."

"Another truck?"

"The third one this evening. The first delivered four thousand Montgomery Wards. The second brought four thousand Sears, Roebucks. I don't know what this one has, but I'm sure it will be four thousand of something. Since you are responsible, I thought you might like to know what's happening.

What I was being blamed for, it turned out, was a newspaper strike which made it necessary to hand-deliver the advertising inserts that normally are included with the Sunday paper. The company had promised our boys $600 for delivering these inserts to 4,000 houses by Sunday morning.

"Piece of cake!" our older college son had shouted.

" Six hundred bucks!" His brother had echoed, "And we can do the job in two hours!"

"Both the Sears and Ward ads are four newspaper-size pages," my wife informed me. "There are thirty-two thousand pages of advertising on our porch. Even as we speak, two big guys are carrying armloads of paper up the walk. What do we do about all this?"

"Just tell the boys to get busy," I instructed. "They're college men. They'll do what they have to do."

At noon the following day I returned to the hotel and found an urgent message

to telephone my wife. Her voice was unnaturally high and quavering. There had been several more truckloads of ad inserts. "They're for department stores, dime stores, drugstores, grocery stores, auto stores and so on. Some are whole magazine sections. We have hundreds of thousands, maybe millions, of pages of advertising here! They are crammed wall-to-wall all through the house in stacks taller than your oldest son. There's only enough room for people to walk in, take one each of the eleven inserts, roll them together, slip a rubber band around them and slide them into a plastic bag. We have enough plastic bags to supply every takeout restaurant in America!" Her voice kept rising, as if working its way out of the range of the human ear. "All this must be delivered by seven o'clock Sunday morning."

"Well, you had better get those guys banding and sliding as fast as they can, and I'll talk to you later. Got a lunch date.

When I returned, there was another urgent call from my wife.

"Did you have a nice lunch?" she asked sweetly. I had had a marvelous steak, but knew better by now than to say so.

"Awful," I reported. "Some sort of sour fish. Eel, I think."

"Good. Your college sons have hired their younger brothers and sisters and a couple of neighborhood children to help for five dollars each. Assembly lines have been set up. In the language of diplomacy, there is 'movement.'"

"That's encouraging."

"No, it's not," she corrected. "It's very discouraging. They're been as it for hours. Plastic bags have been filled and piled to the ceiling, but all this hasn't made a dent,

not a dent, in the situation! It's almost as if the inserts keep reproducing themselves!"

"Another thing," she continued. "Your college sons must learn that one does not get the best out of employees by threatening them with bodily harm.

Obtaining an audience with son NO. 1, I snarled, "I'll kill you if threaten one of those kids again! Idiot! You should be offering a bonus of a dollar every hour to the worker who fills the most bags.

"But that would cut into our profit," he suggested.

"There won't be any profit unless those kids enable you to make all the deliveries on time. If they don't, you two will have to remove all that paper by yourselves. And there will be no eating or sleeping until it is removed."

There was a short, thoughtful silence. Then he said, "Dad, you have just worked a profound change in my personality."

"Do it!"

"Yes, sir!"

By the following evening, there was much for my wife to report. The bonus program had worked until someone demanded to see the color of cash. Then some activist on the work force claimed that the workers had no business settling for $5 and a few competitive bonuses while the bossed collected hundreds of dollars each. The organizer had declared that all the workers were entitled to $5 per hour! They would not work another minute until the bosses agreed.

The strike lasted less than two hours. In mediation, the parties agreed on $2 per

hour. Gradually, the huge stacks began to shrink.

As it turned out, the job was completed three hours before Sunday's 7 a.m. deadline. By the time I arrived home, the boys had already settled their accounts: $150 in labor costs, $40 for gasoline, and a like amount

for gifts—boxes of candy for saintly neighbors who had volunteered station wagons and help in delivery and dozen roses for their mother. This left them with $185 each —about two-thirds the minimum wage for the 91 hours they worked. Still, it was "enough", as one of them put it, to enable them to "avoid indignity" for quite a while.

All went well for some weeks. Then one Saturday morning my attention was drawn to the odd goings-on of our two youngest sons. They kept carrying carton after carton from various corners of the house out the front door to curbside. I assumed their mother had enlisted them to remove junk for a trash pickup. Then I overheard them discussing finances.

"Geez, we're going to make a lot of money!"

"We're going to be rich!"

Investigation revealed that they were offering " for sale or rent" our entire library.

"No! No!" I cried. "You can't sell our books!"

"Geez, Dad, we thought you were done with them!"

"You're never 'done' with books," I tried to explain.

"Sure you are. You read them, and you're done with them. That's it. Then you

might as well make a little money from them. We wanted to avoid the indignity of having to ask you for……"

一个大学男孩，不清楚赚钱需要付出艰苦的劳动，被一份许诺轻松赚大钱的广告吸引了。男孩们很快就明白，如果事情看起来好得不像真的，那多半确实不是真的。

轻轻松松赚大钱

“你们该看看这个，”我向我们的两个读大学的儿子建议道。“你们若想避免因为老是向人讨钱而有失尊严的话，这兴许是一种办法。”我将挂在我们门把手上的、装在一个塑料袋里的几本杂志拿给他们。塑料袋上印着一条信息说，需要招聘人投递这样的袋子，这活儿既轻松又赚钱。（“轻轻松松赚大钱!”）“我不在乎失不失尊严，”大儿子回答说。

“我可以忍受，”他的弟弟附和道。

“看到你们俩伸手讨钱讨惯了一点也不感到尴尬的样子，真使我痛心，”我说。

孩子们说他们可以考虑考虑投递杂志的事。我听了很高兴，便离城出差去了。午夜时分，我已远离家门，在一家旅馆的房间里舒舒服服住了下来。电话铃响了，是妻子打来的。她想知道我这一天过得可好。

“好极了!”我兴高采烈地说。“你过得怎么样?”我问道。

“棒极了!”她大声挖苦道。“真棒!而且这还仅仅是个开始。又一辆卡车刚在门前停下。”

“又一辆卡车?”

“今晚第三辆了。第一辆运来了四千份蒙哥马利-沃德百货公司的广告；第二辆运来四千份西尔斯-罗伯克百货公司的广告。我不知道这一辆装的啥，但我肯定又是四千份什么的。既然这事是你促成的，我想你或许想了解事情的进展。”

我之所以受到指责，事情原来是这样：由于发生了一起报业工人罢工，通常夹在星期日报纸里的广告插页，必须派人直接投送出去。公司答应给我们的孩子六百美金，任务是将这些广告插页在星期天早晨之前投递到四千户人家去。

“不费吹灰之力!”我们上大学的大儿子嚷道。

“六百块!”他的弟弟应声道，“我们两个钟点就能干完!”

“西尔斯和沃德的广告通常都是报纸那么大的四页，”妻子告诉我说，“现在我们门廊上堆着三万二千页广告。就在我们说话的当儿，两个大个子正各抱着一大捆广告走过来。这么多广告，我们可怎么办?”

“你让孩子们快干，”我指示说。“他们都是大学生了。他们自己的事得由他们自己去做。”

第二天中午，我回到旅馆，看到一份紧急留言，要我马上给妻子回电话。她的声音高得很不自然，而且有些颤抖。家里又运到了好几卡车的广告插页。“有百货公司的，廉价商店的，杂货店的，食品店的，汽车行的，等等。有些像整本杂志那么厚。我们这里有数十万页，说不定是几百万页的广告!我们家整个房子从东墙到西墙，从南墙到北墙统统堆满了广告，一堆又一堆，比你大儿子还要高。现在只剩下一点点空间，刚够一个人走进去，从十一种插页中各取一份，卷在一起，套上橡皮筋，再塞进一只塑料袋内。我们的塑料袋足够供应全美所有的外卖餐厅!”她越讲声音越响，几乎震耳欲聋。“这么多的广告必须在星期日早晨七点以前统统送出去。”

“嗯，你最好让孩子们尽快地捆扎装袋，等会儿我再跟你谈。我有个午餐约会。”

我餐后回来，妻子又打来一只紧急电话。

“你午餐吃得不错吧?”她用悦耳的声音问道。我吃的牛排好极了，但这次我学乖了，还是不说为妙。

“糟透了，”我报告说。“一种什么酸溜溜的鱼，我想大概是鳗鲡吧。”

“不错嘛。你的大学生儿子已经雇了他们的弟弟妹妹和两三个邻居的小孩帮忙，工钱一人五块，建起了流水作业线。用外交术语来说，事情‘有进展’。”

“这确实令人鼓舞。”

“不，并非如此，”她纠正说。“相反，非常叫人泄气。他们干了好几个小时了。装好的塑料袋，一直

堆到天花板，但一切努力收效很小。这些广告宣传品简直就像是不停地自行生产出来一样!”

“还有一件事，”她接着说，“你那上大学的儿子必须明白，威胁雇员，说要揍他们，是不可能使他们卖力的。”

我跟大儿子一通上话，便咆哮道，“你如果再威胁那些孩子，我就对你不客气了!白痴!你应该给奖金，对装袋最多的工人每小时奖励一块。”

“可那要减少我们的利润啦，”他提醒道。

“那些孩子不帮你按时将所有的广告投送出去，你就什么利润也得不到。如果他们不干，你们俩就得亲手搬走所有的广告。而在把它们搬掉之前，你们吃不成，也睡不成。”

电话里出现了短暂的沉默，他在思考。接着，他说，“爸爸，你刚才使我深受启迪，令我恍然大悟。”

“那就干吧!”

“是，阁下!”

到第二天傍晚，我妻子就有许多事报告了。奖金计划行之有效，可后来有人对能否兑现表示怀疑，提出把钱拿出来给大家看看。接着工人队伍里的一位活动家声称，老板每人拿几百块钱，工人们决没有理由满足于每人五块外加一点点竞争性的奖金。劳工组织人宣布，所有工人的工资都应该达到每小时五块钱!在老板答应之前，他们不再干活儿，一分钟也不干。

罢工持续了不到两小时。通过调解，双方达成协议，每小时两块。渐渐地，大堆的广告开始减少。

结果，全部工作比最后限期星期日早晨七点提前三个小时完成。等我回到家里，孩子们已经结了账。劳务支出150元，汽油费????40元，还有40元买礼品——几盒糖果，送给乐于助人的邻居，他们主动开出自家的车帮助投递，还有一打玫瑰送给他们的母亲。除去以上开支，他们每人得到185元——大约相当于他们所干的91小时的最低工资的三分之二。虽然如此，可正如一个儿子所说，那还是“足够”他们花一阵子，使他们“避免那种有失尊严的事。”

几个星期过去了，一切都很好。后来，一个星期六的上午，我们两个小儿子的奇怪举动引起了我的注意。他们不停地将一个又一个的纸箱从房屋四处的角落里搬出，经过前门，送到人行道边。我以为他们的妈妈在指挥他们清除破烂，好让垃圾车运走呢。正在这时，我听到他们在议论经济问题。

“哟，我们会赚许多钱呢!”

“我们要发财啦!”

经查问发现，他们正在把我们的全部图书“出售或出租”。

“不成!不成!”我叫道。“不能把我们的书卖了!”

哎唷，爸，我们以为你用不着它们了呢!”

“书永远不会'用'不着的，”我尽力解释道。

“你肯定用不着了。你都看过了，再也不用了。没有错。既然不用，还不如卖点钱。我们想避免那种有失尊严的事，不再伸手向你要……”

Unit 2

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Is there anything we can learn from deer? During the "energy crisis" of 1973-1974 the writer of this essay was living in northern Minnesota and was able to observe how deer survive when winter arrives. The lessons he learns about he way deer conserve energy turn out applicable to our everyday life.

DEER AND THE ENERGY CYCLE

Some persons say that love makes the world go round. Others of a less romantic and more practical turn of mind say that it isn't love; it's money. But the truth is that it is energy that makes the world go round. Energy is the currency of the ecological system and life becomes possible only when food is converted into energy, which in turn is used to seek more food to grow, to reproduce and to survive. On this cycle all life depends.

It is fairly well known that wild animals survive from year to year by eating as much as they can during times of plenty, the summer and fall, storing the excess, usually in the form of fat, and then using these reserves of fat to survive during the hard times in winter when food is scarce. But it is probably less well known that even with their stored fat, wild animals spend less energy to live in winter than in summer.

A good case in point is the whiter-tailed deer. Like most wildlife, deer reproduce, grow, and store fat in the summer and fall when there is plenty of nutritious food available. A physically mature female deer in good condition who has conceived 怀孕in November and given birth to two fawns during the end of May or first part of June, must search for food for the necessary energy not only to meet her body's needs but also to produce milk for her fawns. The best milk production occurs at the same time that new plant growth is available. This is good timing, because milk production is an energy consuming process —it requires a lot of food. The cost can not be met unless the region has ample food resources.

As the summer progresses and the fawns grow, they become less dependent on their mother's milk and more dependent on growing plants as food sources. The adult males spend the summer growing antlers and getting fat. Both males and females continue to eat high quality food in the fall in order to deposit body fat for the winter. In the case of does and fawns, a great deal of energy is expended either in milk production or in growing, and fat is not accumulated as quickly as it is in full grown males. Fat reserves are like bank accounts to be drawn on in the winter when food supplies are limited and sometimes difficult to reach because of deep snow.

As fall turns into winter, other changes take place. Fawns lose their spotted coat. Hair on all the deer becomes darker and thicker. The change in the hair coats is usually complete by September and maximum hair depths are reached by November or December when the weather becomes cold.

But in addition, nature provides a further safeguard to help deer survive the winter—an internal physiological response which lowers their metabolism, or rate of bodily functioning, and hence slows down their expenditure of energy. The deer become somewhat slow and drowsy. The heart rate drops. Animals that hibernate practice energy conservation to a greater extreme than deer do. Although deer don't hibernate, they do the same thing with their seasonal rhythms in metabolism. Deer spend more energy and store fat in the summer and fall when food is abundant, and spend less energy and use stored fat in the winter when food is less available.

When the "energy crisis" first came in 1973-1974, I was living with my family in

a cabin on the edge of an area where deer spend the winter in northern Minnesota, observing the deer as their behavior changed from more activity in summer and fall to less as winter progressed, followed by an increase again in the spring as the snow melted. It was interesting and rather amusing to listen to the advice given on the radio: " Drive only when necessary," we were told. "Put on more clothes to stay warm, and turn the thermostat on your furnace down." Meanwhile we watched the deer reduce their activity, grow a winter coat of hair, and reduce their metabolism as they have for thousands of years. It is biologically reasonable for deer to reduce their cost of living to increase their chance of surviving in winter.

Not every winter is critical for deer of course. If the winter has light snow, survival and productivity next spring will be high. But if deep snows come and the weather remains cold for several weeks, then the deer must spend more energy to move about, food will be harder to find, and they must then depend more on their fat reserves to pull them through. If such conditions go on for too long some will die, and only the largest and strongest are likely to survive. That is a fundamental rule of life for wild, free wandering animal such as deer.

Yes, life—and death, too -- is a cycle that goes round and round, and when animals die their bodies become food for other life forms to use by converting them into energy.

And the cycle continues.

有什么是我们能从鹿身上学到的吗?在1973-1974年的“能源危机”期间，本文作者正住在明尼苏达北部，能够观察当冬天来临时，鹿如何生存。他从鹿储存能量的方法上得到的经验也能够运用到我们的日常生活中。

鹿和能量循环

有些人说，爱情驱使世界运转；另一些并不那么罗曼蒂克而更为注重实际的人则说，不是爱情，而是金钱。但真实情况是，能量驱使世界运转。能量是生态系统的货币，只有当食物转变为能量，能量再用来获取更多的食物以供生长、繁殖和生存，生命才成为可能。所有生命都维系在这一循环上。

差不多众所周知，野生动物得以年复一年地生存下去，主要依靠在夏秋生长旺季尽量多吃，通常将多余的部分以脂肪的形式储存起来，然后到了冬天食物稀少的艰难时期，就用这些储备的脂肪来维持生命。然而，很可能鲜为人知的是，即使有储备的脂肪，野生动物在冬天消耗的能量比夏天要少。

一个很好的例证是白尾鹿。与大多数野生动物一样，鹿在营养丰富、食物充足的夏秋两季，繁殖、生长并储存脂肪。一只成熟健壮的母鹿，在十一月份怀胎，五月底或六月初生下两只幼鹿，这时，它必须寻找食物以获得必要的能量，这不仅是为了满足自身的需要，而且也是为了给幼鹿生产乳汁。产乳的最佳期也正是植物生长茂盛之时。这个时机选择得很好，因为乳汁生产是一个消耗能量的过程——它需要大量的食物，除非该地区具有丰富的食物资源，否则无法满足这种消耗。

夏季一天天过去，幼鹿日渐生长，它们变得较少依赖母鹿的乳汁，而更加依靠生长中的植物为其食物来源。雄性成鹿在夏天生长鹿角并养肥身体。在秋天，雄鹿和雌鹿都继续进食高质量食物，贮存体内脂肪，以备过冬。至于雌鹿和幼鹿，由于大量的能量用于产奶或生长，脂肪的积累速度不如完全成熟的雄鹿快。脂肪储备如同银行里的存款，供冬天食物来源不足时和有时由于雪深难以获得时，支取使用。

随着秋去冬来，还会发生其他变化: 幼鹿失去皮毛上的斑纹，所有鹿身上的毛长厚，颜色变深。毛皮的变化通常持续到9月。到??11月或12月天气变冷时，毛长得最厚。

此外，大自然还为鹿提供进一步的保护以帮助它们度过冬天——体内生理机能作相应调节，放慢新陈代谢，亦即生理活动的速度，从而降低能量的消耗。鹿变得有点动作迟缓、嗜睡。它们的心率减慢。冬眠的动物保存能量的习性胜过鹿。虽然鹿不冬眠，但他们随季节改变新陈代谢节奏的习性则是一样的。夏秋间，食物充裕的时候，鹿消耗较多的能量并储存脂肪。在冬天食物匮乏时，它们则消耗较少的能量并使用储存的脂肪。

1973-1974年间，第一次出现“能源危机”的时候，我正与家人住在明尼苏达州北部一处鹿群过冬地方的边缘地带。我们住在一个小屋里，观察鹿的生活习性，观察它们是如何随着冬季来临从夏秋的活动频繁状态而变得少动的，而到春暖雪融时，他们的活动又是如何增多起来的。

当时广播电台常告诫我们:“没有必要不开车，”“多穿衣服好保暖，并请调低锅炉上的恒温器。”这些话听起来既有趣又逗笑。因为与此同时，我们一直注视着鹿减少活动，长出越冬的厚毛，并减缓新陈代谢。几千年来，他们一贯如此。鹿减少生存所需的能耗以增加越冬生存的机会，从生物学角度来看是合情合理的。

当然，对鹿来讲，并非每个冬天都处于危难之中。如果冬天雪下得少，存活率和次年春天的繁殖力就高。但如果雪积得深，天气连续数周寒冷，鹿活动起来就得花费较多的能量，觅食会更难，这时它们就得更多地依赖其脂肪储备度过寒冬。如果这种情况持续太久，有些鹿就要死亡，只有体型最大最壮的，才有可能存活。对于像鹿这样四处自由奔走的野生动物来说，这是一条根本的生存规律。

的确，生命——还有死亡——周而复始，循环不已。当动物死亡的时候，他们的尸体转化为能量，变成食物，供其他生命形式使用。

如此循环，永不止息。

Unit 3

Text

Can you prove that the earth is round? Go ahead and try! Will you rely on your senses or will you have to draw on the opinions of experts?

WHY DO WE BELIEVE

THAT THE EARTH IS ROUND?

George Orwell

Somewhere or other —I think it is in the preface to saint Joan —Bernard Shaw remarks that we are more gullible and superstitious today than we were in the Middle Ages, and as an example of modern credulity he cites the widespread belief that the earth is round. The average man, says Shaw, can advance not a single reason for thinking that the earth is round. He merely swallows this theory because there is something about it that appeals to the twentieth-century mentality.

Now, Shaw is exaggerating, but there is something in what he says, and the question is worth following up, for the sake of the light it throws on modern knowledge. Just why do we believe that the earth is round? I am not speaking of the few thousand astronomers, geographers and so forth who could give ocular proof, or have a theoretical knowledge of the proof, but of the ordinary newspaper-reading citizen, such as you or me.

As for the Flat Earth theory, I believe I could refute it. If you stand by the seashore on a clear day, you can see the masts and funnels of invisible ships passing along the horizon. This phenomenon can only be explained by assuming that the earth's surface is curved. But it does not follow that the earth is spherical. Imagine another theory called the Oval Earth theory, which claims that the earth is shaped like an egg. What can I say against it?

Against the Oval Earth man, the first card I can play is the analogy of the sun

and moon. The Oval Earth man promptly answers that I don't know, by my own observation, that those bodies are spherical. I only know that they are round, and they may perfectly well be flat discs. I have no answer to that one. Besides, he goes on, what reason have I for thinking that the earth must be the same shape as the sun and moon? I can't answer that one either.

My second card is the earth's shadow: When cast on the moon during eclipses, it appears to be the shadow of a round object. But how do I know, demands the Oval Earth man, that eclipses of the moon are caused by the shadow of the earth? The answer is that I don't know, but have taken this piece of information blindly from newspaper articles and science booklets.

Defeated in the minor exchanges, I now play my queen of trumps: the opinion of the experts. The Astronomer Royal, who ought to know, tells me that the earth is round. The Oval Earth man covers the queen with his king. Have I tested the Astronomer Royal's statement, and would I even know a way of testing it? Here I bring out my ace. Yes, I do know one test. The astronomers can foretell eclipses, and this suggests that their opinions about the solar system are pretty sound. I am, to my delight, justified in accepting their say-so about the shape of the earth.

If the Oval Earth man answers —what I believe is true —that the ancient Egyptians, who thought the sun goes round the earth, could also predict eclipses, then bang goes my ace. I have only one card left: navigation. People can sail ship round the world, and reach the places they aim at, by calculations which assume that the earth is spherical. I believe that finishes the Oval Earth man, though even

then he may possibly have some kind of counter.

It will be seen that my reasons for thinking that the earth is round are rather precarious ones. Yet this is an exceptionally elementary piece of information. On most other questions I should have to fall back on the expert much earlier, and would be less able to test his pronouncements. And much the greater part of our knowledge is at this level. It does not rest on reasoning or on experiment, but on authority. And how can it be otherwise, when the range of knowledge is so vast that the expert himself is an ignoramus as soon as he strays away from his own specialty? Most people, if asked to prove that the earth is round, would not even bother to produce the rather weak arguments I have outlined above. They would start off by saying that "everyone knows" the earth to be round, and if pressed further, would become angry. In a way Shaw is right. This is a credulous age, and the burden of knowledge which we now have to carry is partly responsible.

你能证明地球是圆的吗?来试试看吧！你将依靠你自己的智力还是不得不引用专家的观点呢?

我们为什么相信地球是圆的?

记得在什么地方——我想是在《圣女贞德》序言中——肖伯纳评论说，今天我们比在中世纪时更加轻信，更加迷信。而作为现代轻信的例证，他举出地圆说这一广为传播的信念。肖伯纳说，普通人举不出一条理由来说明为什么相信地球是圆的。他全盘接受这一理论，只是因为这一理论中有一种迎合20世纪心态的东西。

当然，肖伯纳是夸大其词了，但他说的也确实有些道理，这一问题值得进一步探讨，因为它会帮助人们看清现代知识的真实情况。我们究竟为什么会相信地球是圆的呢?我说的不是数千位天文学家、地理学家之类的人，他们可以用观察到的事实或用理论上的根据来证实这一点，我指的是如同你我之辈的报纸的普通读者。

至于“地平说”，我相信我能够加以驳斥。如果你在天气晴朗的日子站立海边，你可以看到船桅和烟囱沿着地平线移动而不见船体本身。只有假设地球表面呈曲线状，这一现象才能得到解释。但不能由此推断地球是球形的。设想另一个称做“地球卵形说”的理论吧，这一学说声称地球形如蛋状。对此，我能说什么加以反驳呢?

面对“地球卵形说”者，我能打的第一张牌是，可以根据太阳和月亮来类推。“地球卵形说”者立即回敬道，我无法根据自己的观察得知那些天体是球形的。我只能得知他们是圆的，而它们完全可能呈扁平

的圆盘状。我对此无言以答。此外，他还会说，我凭什么理由认为地球一定与太阳和月亮的形状相同?对此，我同样无法解答。

我的第二张牌是地球的影子: 月食期间，地球投在月亮上的影子看上去呈圆形物体状。但“地球卵形说”者马上要问，我怎么知道月食是由地球的影子造成的呢?回答是，我并不知道，我只是照搬报刊文章和科普小册子上的说法而已。

小小交锋受挫，于是我打出一张王牌“Q”: 专家的看法。英国格林威治皇家天文台台长总该是权威了，他告诉我说地球是圆的。“地球卵形说”者用他的“K”牌压倒我的“Q”牌。天文台台长的话我检验过没有?再说，我知道怎么个检验法吗?这时候，我打出我的“爱司”。是的，我确实知道一个检验方法。天文学家能预报月食，这一点表明他们关于太阳系的看法是非常可信的。因此，令我高兴的是，我接受他们关于地球形状的论断是有道理的。

如果“地球卵形说”者反驳道——我以为他反驳得有理——认为太阳绕地球转的古代埃及人也能预言月食，那我的“爱司”牌便立刻化为乌有。我只剩下一张牌: 航海。人们可以扬帆绕地球航行而到达他们的目的地，其航程的计算，就是以地球是球形的假定为依据的。我相信这一下可以彻底击败“地球卵形说”者了。不过即便如此，他还可能有某种回击的办法。

由此可见，我认为地球是圆的，其根据是相当不牢靠的。然而这却是一点极其基本的知识。在别的大多数问题上，我只得更早地依赖专家的理论，且更少有办法检验他的结论了。我们的知识，其绝大部分都停留在这一水平上。它不是依靠推理或实验，而是依赖权威。可是，不这样，又有什么别的法子呢?知识的范围如此广博，一旦越出其专业范围，专家也会变成一无所知。对大多数人来说，如果要他们证明地球是圆的话，就连我上面概述的这些相当无力的论据，他们也不愿提供出来。他们一开始就会说: 谁都知道地球是圆的。要是再加追问，就会生气了。在某种程度上讲，肖伯纳是说对了，如今是一个轻信的时代。究其缘由，部分在于，我们现今必须掌握的知识实在太多了。

Unit 4

Text

On September 11, 2001, a series of suicide attacks on the United States took place. Foreign hijackers took control of four U.S. airliners. Two were crashed into the World Trade Center. The third aircraft was crashed into the Pentagon. The fourth, intended, it is thought, for another government target, crashed into a field, apparently after passenger resistance. This is the story of one of those passengers Flight 93:What I never know

Sunday, September 9, 2001, was a good day for the three of us. Emmy was just 11 weeks old and we were enjoying her enormously. After three miscarriages in two years, she was doubly precious to us. My husband, Jeremy, who was thinking of changing jobs, had gone on two interviews and felt they went well. Since Sunday

was rainy, we just lay around our house in northern New Jersey. We laughed a lot, and watched Emmy, and then went to bed early.

The next day, September 10, was busy, with Jeremy due to fly from Newark to California on business. I would take Emmy up to my parents’house in Windham, New York, and he could meet us there when he returned.

For some reason he particularly wanted to take care of Emmy that morning. So he fed her and bathed and dressed her. He packed up both our cars, made sure Emmy was tucked into her car seat, and kissed her. Then he stood waving as we drove off.

When I got to Windham, Jeremy called. His flight to San Francisco had been canceled. He didn’t want to take the next available flight and get in at 2 a.m.“Screw it，”he said. “I’m going to go home, get a good night’s sleep, and get up early tomorrow.”He would grab the first flight out of Newark. United Flight 93.

Tuesday morning found me in the kitchen, fumbling with the lid of the doughnut box, when I heard my father say something about the World Trade Center. I looked in the living room at the TV, and saw the image of the fire poking through the blackened holes in the tower’s silver skin. The phone rang, and my dad said into it, “Oh, thank God it’s you.”I ran into the living room. He held out the phone, his face pale. “Jeremy,”he said.

I grabbed the phone.“Jer”I said.

“Hi”he said.“Listen，there are some bad men on the plane .”

“What do you mean?”

“These three guys took over the plane. They put on these red headbands. They said they had a bomb.”

I was crying now.

“I love you,”he said.

“I love you,”I said.

“only have good thoughts”

I was shaking and nauseated, but I also knew I could make myself do whatever was necessary to help Jeremy.

“I don’t think I’m going to make it out of here,”he said. And then, “I don’t want to die.”And he cursed.

“You’re not going to die,”I told him. “Jer, put a picture of me and Emmy in your head and only have really good thoughts.”

“Yeah,”he answered.

“Don’t think about anything bad,”I said.

“You’ve got to promise me you’re going to be happy,”he said. “For Emmy to know how much I love her. And that whatever decisions you make in your life, no matter what, I’ll support you.”

After a pause, Jeremy said to me, “A passenger said they’re crashing planes into the World Trade Center. Is that true?”

“Are they going to blow the plane up or are they going to crash it into something?”he almost screamed at me.

“They’re not going to the World Trade Center,”I said.

“Because the whole thing’s on fire.”

He said there were maybe 30 or 35 passengers, herded to the back. For some reason, however, no one was guarding them back there.

“What about the pilots?”I asked him. “Has there been any communication?”

“No. These guys just stood up and yelled and ran into the cockpit. After that, we didn’t hear from the pilots.”

Just then, we saw something on TV about a plane crashing into the Pentagon, and I thought, thank God it isn’t Jeremy’s plane.

When I told him about this new attack, Jeremy cursed again. The Pentagon was probably the jolt that made him see clearly that his fate and that of his fellow passengers in the rear of the plane were completely in their own hands. “Okay, I’m going to take a vote,”he said. “There’s three other guys as big as me and we’re thinking of attacking the guy with the bomb. What do you think?”

“No, I didn’t see guns. I saw knives.”He joked, “I still have my butter knife from breakfast.”There was a pause, and then he said, “I know I could take the guy with the bomb. Do you think it’s really a bomb?”

I don’t think so. I think they’re bluffing you.”

“Okay, I’m going to do it,”Jer said

“screams in the background”

“I think you need to do it,”I told him. “You’re strong, you’re brave, I love you.”

“Okay, I’m going to put the phone down, I’m going to leave it here, and I’

m going to come right back to it,”

When my father put the phone to his ear, he heard nothing on the line for two or three minutes. Then he heard screams off in the background. And he thought, They’re doing it. It was bound to be noisy. Perhaps a minute and a half later, there was another set of screams, muffled, like people on a roller coaster. Then silence

I sat on the living room couch and all my energy seemed to have deserted me. After a while, I got up and headed for the kitchen and almost collided with my dad, who was coming the other way. He must have just hung up the phone. He was crying. He gave me a hug. I watched him cry, a bit dumbfounded.

Wait, you think he’s dead?”I said.

He couldn’t manage anything but to cry harder. I must have asked the same question five times. And then, when it finally sank in, I collapsed on the floor。

“searching for Jeremy”

Over the next months, I spent a lot of time searching for Jeremy. Often I heard his voice in my head, comforting me when my pain was almost

unendurable. I visited the crash site. I hungered to know what had happened on Flight 93 and why Jeremy died.

Now I find that my viewpoint has changed. Not that I don’t want to know what happened. It’s just that I’m sure I will never really make sense of September 11. Did someone declare war on us for a principle? Because they were jealous? To show how tough they were? Did we in this country somehow overstep, push too hard, tread on ancient sensibilities? The world Jeremy and I knew was never more than

the rooms we lived in, a few places we walked, a few friends and family we loved. Now it’s gone, and no one could ever really make sense of why.

I think Jeremy always suspected he had a higher purpose. I don’t believe it was an accident that he was on Flight 93. It wasn’t mere luck that an airline passenger with precisely the right physical skills to abort one of the terror missions happened to be on the only plane hijacked that day where there was an opportunity to do that.

Jeremy was 31 when he died, had been married to me for five years and knew his daughter for barely three months. Yet I consider us blessed. He and I left nothing unsaid or undone, and he managed to give Emmy and me everything we need. And sometimes, when I’m watching and listening, I can still feel him near me, leading me forward into the rest of my life.

2001年9月11日，在美国发生了一系列自杀式的袭击事件。外国的劫机者控制了四架美国的航空公司的飞机，两架撞入世界贸易中心，第三架冲进五角大楼，而第四架据传原本要袭击另一政府目标，但显然由于遭到乘客的反抗而坠毁于一片田地里。本文说的便是其中一位乘客的故事。

第93次航班：我所无法理解的事

莉兹·格里克?? 丹·泽加特

2001年9月9日是星期日，对我们三个人来说，是个美好的日子。埃米刚有11周大，我们极其喜欢她。她是我在两年内经过连续三次流产后生下的，所以对我们更为珍贵。我的丈夫杰里米当时正考虑换个工作，已经面试过两次，自己感觉进行得还顺利。周日那天下雨，我们就在我们位于新泽西北部的自家屋内闲躺着。我们嬉笑着，照看着埃米，随后就早早就寝了。

次日，9月10日，我们忙碌起来，杰里米将从纽瓦克飞往加利福尼亚出差。我将带埃米北上去纽约州温德姆我父母的家中。这样，杰里米回来时可以去那里接我们。

那天早晨，不知什么原因，他特想要照料埃米。他给她喂奶、给她洗澡、给她穿衣。他把两辆车的行李都装好，把埃米在汽车座椅上安置妥当，并吻了吻她。而后当我们开车离开时他站到一边挥手告别。

我到达温德姆时，杰里米打来电话。他飞往旧金山的航班被取消了。他不打算搭乘下一班飞机在凌晨两点到达目的地。“该死，”他说。“我想回家，美美地睡上一夜，明天早点起身。”他将赶上第一班航班飞离纽瓦克。联合航空公司的第93次航班。

星期二早晨我正在厨房里设法打开一盒炸圈饼的盒盖时，听到父亲在说什么世贸中心的事。我向起居室的电视瞧去，看见屏幕上出现了从世贸中心大楼的银色外墙上被燻黑的洞中窜出的大火。这时电话响了，父亲对着话筒说道，“哦，感谢上帝，是你啊。”我跑进起居室，父亲脸色苍白地把话筒递了过来。“是杰里米，”他说。

汽车专业英语翻译综合

第一章汽车总论 1)Today’s average car contains more than 15,000 separate, individual parts that must work together. These parts can be grouped into four major categories: body, engine, chassis and electrical equipment 。P1 现在的车辆一般都由15000多个分散、独立且相互配合的零部件组成。这些零部件主要分为四类：车身、发动机、底盘和电气设备。 2)The engine acts as the power unit. The internal combustion engine is most common: this obtains its power by burning a liquid fuel inside the engine cylinder. There are two types of engine: gasoline (also called a spark-ignition engine) and diesel (also called a compression-ignition engine). Both engines are called heat engines; the burning fuel generates heat which causes the gas inside the cylinder to increase its pressure and supply power to rotate a shaft connected to the power train. P3 发动机作为动力设备，常见的类型是内燃机，其原理是通过发动机缸内的液体燃料燃烧而产生能量。发动机可分为两类：汽油机（点燃式）和柴油机（压燃式），都属于热力发动机。燃料燃烧产生热量使缸内气压上升，产生的能量驱动轴旋转，并传递给动力传动系。 第二章内燃机 1)Power train system: conveys the drive to the wheels 2)Steering system: controls the direction of movement 3)Suspension system: absorbs the road shocks 4)Braking system: slows down the vehicle P4 传动系把发动机输出的扭矩传递给驱动轮。传动系包括离合器（对应机械变速器）或液力变矩器（对应液力自动变速器）、变速器、驱动轴、主减速器、差速器和驱动桥。 5)Drum brakes have a drum attached to the wheel hub, and braking occurs by means of brake shoes expanding against the inside of the drum. With disc brakes, a disc attached to the wheel hub is clenched between two brake pads. P6 鼓式制动器的制动鼓和轮毂连接，制动蹄张开压紧制动鼓内侧从而产生制动。在盘式制动器上，连着轮毂的制动盘被紧紧夹在两个制动块之间。 1)Linking the piston by a connecting rod to a crankshaft causes the gas to rotate the shaft through half a turn.The power stroke"uses up"the gas,so means must be provided to expel the burnt gas and recharge the cylinder with a fresh petrol-air mixture:this control of gas movement is the duty of the valves;An inlet valve allows the mixture to enter at the right time and an exhaust valve lets out the burnt gas after the gas has done its job . P10 活塞通过连杆和曲轴连接，使得气体带动曲轴旋转半圈。作功冲程耗尽了所有的气体，这样就必须采取相应的措施排出废气并且向气缸内充入新的可燃混合气：气体的运动由气门来控制。进气门使可燃混合气在恰当的时刻进入气缸，排气门使燃烧后的废气排出气缸。 2)The spark-ignition engine is an internal-combustion engine with externally supplied in ignition,which converts the energy cntained in the fuel to kinetic energy.The cycle of operations is spread over four piston strokes. To complete the full cycle it takes two revolutions of the crankshaft. P11 火花点火式发动机是由外部提供点火的内燃机，从而将含在燃料内的能量转化成动能。发动机的一个工作循环分布在活塞的四个行程中，一个完整的工作循环曲轴需要转动两圈。 3)The oil pump in the lubricating system draws oil from the oil pan and sends it to all working parts in the engine. The oil drains off and runs down into the pan. Thus,there is constant circulation of oil between the pan and the working parts of the engine. P15

外研版小学英语五年级(下册)课文翻译

Module1 unit1 part1 看，椅子上有两只漂亮的猫咪。there are有，后面跟可数名词复数 现在只有一只。 好吧，（刚刚）有两只。 part2 玲玲仍然与萨姆和埃米在英国。 看，玲玲！它是一个关于中国的节目。快来看看！ 我来了！ 许多年前，中国的生活（与现在）大不相同。 life 生活复数是lives 有什么不同呢 （那时）我们住在一座小房子里。我们没有足够的食物。没有很多公共汽车。live in 住在 没有电视机。 现在怎么样呢 （现在）我们住在一座大房子里。我们有许多食物。有许多公共汽车和小汽车。 我每天看电视。昨天我（还）与我的孙子孙女一起看电视了呢。a lot of=lots of 谢谢你与我们谈话。Thank you for +名词或动词ing形式表示因为某事感谢别人。 中国正在变化着。 我想念中国！我想念我的祖母！ unit2 part1 他有强壮的退。他能跳的很远。 但是他那时候还没有腿。

part2 亲爱的大明： 昨天晚上，我看了一个关于中国的电视节目。 一位老妇人谈到多年前她的生活。 她在田里劳作。她在炉火上做饭。她没有电视机和收音机。in the field在田地里 on the fire 在火上 她没有电话。她不会读也不会写。couldn’t=could not 不能 我想念我的祖母。我也想念你！ 希望你一切都好。 爱你的， 玲玲 Module2 unit1 part1 她学习跳舞。learnt学习原形learn 她学习做饭。 她教语言并写书。taught教原形teach Module2 unit1 part2 玲玲，他们是谁 他们是我的祖父母。 这是谁 是我祖母。她曾经是个舞蹈演员。她在中国的许多城市都演出过。dancer舞蹈演员动词形式dance跳舞 她学过外语吗吗

汽车专业英语翻译

About car engine Of all automobile components,an automobile engie is the most complicated assembly with dominant effects on the function of an autombile.So, the engine is generally called the"heat"of an automobile. 在汽车的所有部件中，汽车发动机是最复杂的组件，其对整车性能有着决定性的作用。因而发动机往往被称作发动机的“心脏”。 There are actually various types of engines such as electric motors,stream engines,andinternal combustion engines.The internal combustion engines seem to have almost complete dominance of the automotive field.The internal combustion engine,as its name indicates,burns fuel within the cylinders and converts the expanding force of the combustion into rotary force used to propel the vehicle. 事实上，按动力来源分发动机有很多种，如电动机、蒸汽机、外燃机等。然而内燃机似乎在发动机领域有着绝对的统治地位。就像其字面意思一样，内燃机的染料在气缸内燃烧，通过将燃烧产生气体的膨胀力转换成转动力来驱动发动机前进。 Engine is the power source of the automobile.Power is produced by the linear motion of a piston in a cylinder.However,this linear motion must be changed into rotary motion to turn the wheels of cars or trucks.The puston attached to the top of a connecting rod by a pin,called a piston pin or wrist pin.The bottom of the connecting rod is attached to the crankshaft.The connecting rod transmits the up-and-down motion of the piston to the crankshaft,which changes it into rotary motion.The connecting rod is mounted on the crankshaft with large bearings called rod bearing.Similar bearings, called main bearings,are used to mount the crankshaft in the block. 发动机是整部车的动力来源。能量来自于活塞在气缸内的（往复）直线运动。然而这种（往复）直线运动必须要转换成旋转运动才能驱动车轮。活塞与连杆通过一个销来连接，这个销称为活塞销。连杆的下部连接于曲拐。连杆把活塞的上下往复运动传递给曲拐，从而将往复直线运动转变成旋转运动。连杆和曲拐的连接使用大的轴承，称之为连杆轴承，类似的轴承也用于将曲轴连接到机体，称之为主轴承。 They are generally two different types of cooling system:water-cooling system and air-cooling system.Water-cooling system is more common.The cooling medium, or coolant, in them is either water or some low-freezing liquid, called antifreeze.A water-cooling system consists of the engine water jacket, thermostat, water pump, radiator, radiator cap, fan, fan drive belt and neccessary hoses. 主要有两种类型的冷却系统：水冷和风冷。水冷系统更为普遍。系统所用冷却介质或是冷却液常委水或其他低凝固点液体，称为抗凝剂。一个完整的水冷系统包括机体水套，节温器，水泵，散热器，散热器罩，风扇，风扇驱动皮带和必需的水管。 A water-cooling system means that water is used as a cooling agent to circulate through the engine to absorb the heat and carry it to the radiator for disposal.The ebgine is cooled mainly through heat transfer and heat dissipation.The heat generated by the mixture burned in the engine must be transferred from the iron or aluminum cylinder to the waterin the water jacket.The outside of the water jacket dissipates some of the heat to the air surrounding it, but most of the heat is carried by the cooling water to the radiator for dissipation.When the coolant temperature in the system reaches 90°,the termostat valve open fully, its slanted edge shutting off

课文翻译与课后练习答案_新编大学英语(第三版)第一册_unit2

UNIT 2 Remembering and Forgetting In-Class Reading Special Delivery 特种快递 到了机场，我才发现我兄弟搭乘的航班延误了一个小时。通常我在机场等候接人时，会把时间消磨在观看飞机起落上。可那天晚上我头疼得厉害。我想喷气发动机发出的噪音会使我头疼更厉害，于是决定在机场内逛一会儿。 当我走过那些店铺时，碰巧看到陈列在那儿的航空箱包，这使我想起了自己的公文包。我这才意识到公文包没在身上。我马上努力回忆会把它遗忘在了哪里。自从离开航空公司票务柜台后，我没有在其他任何地方停留过，所以我推想，我一定是把包留在那里了。我急忙回去取，可是公文包已无影无踪。起先我确信一定是有人顺手把它拿走了，但随后又想，也有可能看到包的人已把它交给了柜台，于是便在票务柜台排队等候。轮到我时，我描述了包的特征，并询问是否有人把它交到了柜台。那位航空公司代理摇了摇头。这时我朝他身后的行李输送带瞥了一眼，输送带正把行李从办理登机手续处往下面的装货区传送。我大声叫道：“我的包在那儿！”然而，当代理回头看时，公文包已传送到输送带的尽头，突然消失了。 “你看到你的包了？”代理问我。 “是的！”我大声说。“它刚穿过那边那个入口。这下我怎样才能把它取回来呢？”

“这不难，”代理回答说。“把你的行李领取凭证给我，我想我们能够在装机前截住它。” “可我没有行李凭证！”我答道。“我没办托运！我哪儿都不去。我是来接人的。”我平静了一下情绪，解释了事情的经过，并指出很可能有人把包交到了柜台，而某位代理把它和其他行李一起办了托运并放到了传送带上。 代理告诉我，能找回包的唯一办法是，填写一张认领单，在上面写清公文包的外观特征。等我填完表格，代理打电话到下面的行李区查询时，包已被装上了一架航班，但不知是哪一架。代理记下了我的电话号码，并保证他们一找到包就给我打电话。尽管我住在苏城，离机场有一个半小时的车程，他们还是会一找到包就把它送到我家来。 我兄弟的航班到了。我们取了他的箱子后便走向停车场找我的车。回家的路上我把公文包的事告诉了他。到了家，我们把行李从车上卸下来。当我兄弟从车里拿出一只公文包时，我真不敢相信自己的眼睛。原以为已丢失的公文包其实根本就没有被带进机场！它一直躺在后座的地上。我意识到，此时此刻航空公司的人正在飞往丹佛、圣路易斯和芝加哥的航班上逐一检查核对行李，寻找我的公文包。一想到要打电话告诉他们我已经在自己的车里找到了包，心里真叫痛苦。 我们进屋时电话铃正响着。接电话时，我惊呆了。电话里一位航空公司的工作人员说：“我们有好消息告诉你！我们在丹佛找到了你的公文包，十一点前应该到这里。午夜后不久便能送到你家。”

汽车专业英语课文翻译4

Fuel Supply System of Gasoline Engine(UNIT SEVEN) All the gasoline engines have substantially identical fuel systems and run on a mixture consisting of fuel vapor and air. The fuel system comprises the units designed to store, clear and deliver fuel, the units intended to clean air and a unit for preparing a mixture from fuel vapor and air. In a fuel system different components are used to supply fuel from the fuel tank into the engine cylinder. Some of the important components are fuel tank, fuel pump, fuel filter, carburetor, intake manifold and fuellines or tubes connecting the tank, pump and the carburetor. The fuel tank is a fuel container used for storing fuel. It is made of sheet metal. It is attached to the vehicle frame with metal traps and is located at the rear of the vehicle. They are mounted in a boot or boot-floor pan in case of front-engined cars and small commercial vehicles. In order to strengthen the tank as well as to prevent surging of fuel when the vehicle rounds a curve of suddenly stops, baffle plates are attached to the inside of the tank. A cap is used to close the filler opening of the tank. The fuel line is attached at or near the bottom of the tank with a filtering element placed at the connection. The other components of the fuel tank are the fuel gauge sending unit, a vent pipe, receiving unit. To prevent the dirt and water from entering the luggage compartment, a sealing strip is fitted between the fuel tank and boot floor pan. Moreover to limit the transmission of frame distortion to the tank giving rise to squeaking as the metal parts get rubbed together, rubber or felt pads are often fitted between the mountings and the tank. Provision is also made against drumming of the tank by these mountings. The tank may be placed at the side of the chassis frame for convenience in case of large commercial vehicles. The length of the connecting lines or tubes from the tank to the carburetor is also restricted by this at the same time. A porous filter is attached to the outlet lines. By drawing fuel from the tank through the filter, any water in the bottom of the tank as well as any dirt into the fuel gathers on the surface of the filter. To keep the fuel always under atmospheric pressure, the filter pipe or tank is vented. In order to prevent dirt in the fuel from entering the fuel pump or carburetor, fuel filters and screens are used in the fuel system. If the dirt is not removed from the fuel, the normal operation of these units will be prevented. The engine performance will also be reduced.

汽车专业英语_单词表

unit1 body 车身chassis 底盘enclosure外壳、套hood车棚、车顶sway 摇摆frame车架steering转向、操作brake 制动weld焊接rivet铆钉bolt螺钉washer垫圈vibration 振动stabilizer稳定器ride乘坐舒适性handling操作稳定性linkages转向传动机构plier钳子distributor分电器alternator交流发电机regulator调节器carburetor化油器radiator散热器、水箱defroster除冰装置sludge金属碎屑transmission变速器differential 差速器power train 传动系unitized body 承载式车身suspension system 悬架系统steering system 转向系braking system 制动系shock absorbers减震器control arms控制臂steering wheel 转向盘steering column转向管柱steering gears 转向器tie rod 横拉杆idler arm随动臂brake shoe制动蹄disc brake 盘式制动器drum brakes 鼓式制动器ignition system 点火系统exhaust system 排气系统lubrication system 润滑系oil filters 机油滤清器drive（or propeller）shaft传动轴universal joints 万向节dynamo发电机horn喇叭swived 旋转steering box转向器timing gear 正时齿轮bevel gear 锥齿轮mesh with与啮合leaf spring 钢板弹簧stub axle 转向节 unit2 longitudinal纵向的transverse横向的reciprocate往复spin旋转piston活塞ignite点火rub摩擦quart夸脱reservoir油箱mechanical机械的enclosed被附上的gallon加仑stroke冲程camshaft凸轮轴combustion燃烧disengaged脱离啮合的flywheel飞轮internal-combustion engine内燃机diesel-fuel柴油LPG=Liquefied Petroleum Gas液化石油气体CNG=Compressed natural gas压缩天然气spark ignition火花点火compression ignition压缩点火spark plug火花塞gas-turbine engine蒸汽机Stirling engine斯特灵发动机lubricating system润滑系统oil pan油底壳oil pump机油泵exhaust system排气系统emission-control system排放控制系统energy conversion能量转换air/fuel ratio空燃比connecting rod连杆TDC=Top Dead Center上止点BDC=Bottom Dead Center 下止点intake stroke进气冲程compression stroke压缩冲程power stroke作功冲程exhaust stroke排气冲程compression ratio压缩比lifter挺柱rocker摇臂retainer弹簧座seal密封件tappet 推杆lobe凸起gasket垫圈valve train配气机构cam follower气门挺柱rocker arm摇臂combustion chamber燃烧室intake valve进气阀exhaust valve排气阀valve stem气门杆valve cover气门室盖valve port阀口valve guide气门导管 unit3

七年级英语下册u2课文翻译

初中一年级下册英语课文 Module1 Unit2 我们要去听歌剧 此时，在世界的不同地方，人们正在做不同的事情。 在伦敦，现在是（下午）五点钟，人们正下班回家。他们有的在等公共汽车，有的正跑去乘火车。一些人正开着自己的汽车。一些人在家里喝下午茶，或去酒吧喝一杯。 在莫斯科，现在是（晚上）八点钟，人们不是在喝下午茶。他们正在家里或餐馆里吃饭。一些人要去听歌剧或看芭蕾舞，一些人则在家里看电视或玩游戏。 在北京，现在是（凌晨）1点整。人们没有吃法。他们正在睡觉。 在洛杉矶，现在是早上9点整。人们不是正在起床、梳洗或穿衣。他们正在工作。孩子们正在上课。 在纽约，现在是中午12点整。人们不是在工作，而是在吃午餐。他们正在吃汉堡包或热狗，喝咖啡或可乐。他们正在见朋友，打电话回家或买东西。 Module2 世界各地圣诞节和圣诞老人 圣诞节是西方国家最重要的节目。它是为了庆祝基督耶稣的生日。然而，孩子们通常对圣诞老人更感兴趣。他是一个胖胖的人，留着长长的白胡子，穿着红外套。他给孩子们礼物。所以，孩子们非常喜爱他。 Module3

Unit2 我们要去登长城 A我正期待着见到我的女儿和她的女儿，即我的外孙女，因为我外孙女要过生日了，我打算去中国看她们。我将乘飞机去北京，因为她们住在那儿。我们喜欢中国文化，所以我们要参观游览一番。我们将去参观紫禁城，然后去爬长城。 B我期待着和我的父母亲一起去迪尼斯乐园。我将去参观迪尼斯乐园，因为我喜欢米老鼠。我将学习英语因为我相交一些美国朋友。然后我将躺在海滩上因为我喜欢享受阳光和大海。然后我们将住在旧金山的一家旅馆里，因为我父母亲在那儿有一些朋友。 C我正期待着龙舟节。我们将在香港观看它，因为我父母住在那儿。因为我的孩子们喜欢游泳，所以我和妻子会谈在沙滩上（看她们游泳）。并且我们都将享受到我母亲（做）的粽子，因为她是一个烹饪高手。 世界各地 他们打算干什么？ 他们计划环游世界。他们要横渡太平洋和大西洋。他们将不使用引擎。他们将全程乘帆船航行。他们希望将会有风！ Module4 Unit2 每个人都会有辆小汽车

汽车专业英语翻译

INTERNAL COMBUSTION ENGINE 引擎燃烧室 1. principle of operation 原理 Engine and power : Engine is used to produce power. The chemical energy in fuel is converted to heat by the burning of the fuel at a controlled rate. This process is called combustion. If engine combustion occurs with the power chamber. ,the engine is called internal combustion engine. If combustion takes place outside the cylinder, the engine is called an external combustion engine. Engine used in automobiles are internal combustion heat engines. Heat energy released in the combustion chamber raises the temperature of the combustion gases with the chamber. The increase in gas temperature causes the pressure of the gases to increase. The pressure developed within the combustion chamber is applied to the head of a piston to produce a usable mechanical force, which is then converted into useful mechanical power. 译: 引擎和能量: 引擎为汽车提供能量，燃料的化学能通过燃烧，转化为热能，这个过程叫燃烧。假如燃烧在燃烧室，这样的发动机叫内燃机。假如燃烧在气缸外，这样的发动机叫外燃机。 用在汽车上的一般是内燃机，热能在燃烧室释放，燃烧室气体温度升高。气体温度的升高使气体的压力曾加，燃烧室内的高压气体作用在活塞头部产生可以利用的化学能，化学能转化为机械能。 Engine T erms : Linking the piston by a connecting rod to a crankshaft causes the gas to rotate the shaft through half a turn. The power stroke “uses up” the gas , so means must be provided to expel the burnt gas and recharge the cylinder with a fresh petrol-air mixture :this control of gas movement is the duty of the valves ;an inlet valve allows the new mixture to enter at the right time and an exhaust valve lets out the burnt gas after the gas has done its job. Engine terms are : TDC(Top Dead Center):the position of the crank and piston when the piston is farther away from the crankshaft. BDC(Bottom Dead Center):the position of the crank and piston when the piston is nearest to the crankshaft. Stroke : the distance between BDC and TDC; stroke is controlled by the crankshaft. Bore : the internal diameter of the cylinder. Swept volume : the volume between TDC and BDC Engine capacity : this is the swept volume of all the cylinder e.g. a four-stroke having a capacity of two liters(2000cm) has a cylinder swept volume of 50cm. Clearance volume: the volume of the space above the piston when it is at TDC. Compression ratio = (swept vol + clearance vol)\(clearance vol) Two-stroke : a power stroke every revolution of the crank.

土木工程专业英语正文课文翻译

第一课土木工程学 土木工程学作为最老的工程技术学科，是指规划，设计，施工及对建筑环境的管理。此处的环境包括建筑符合科学规范的所有结构，从灌溉和排水系统到火箭发射设施。 土木工程师建造道路，桥梁，管道，大坝，海港，发电厂，给排水系统，医院，学校，公共交通和其他现代社会和大量人口集中地区的基础公共设施。他们也建造私有设施，比如飞机场，铁路，管线，摩天大楼，以及其他设计用作工业，商业和住宅途径的大型结构。此外，土木工程师还规划设计及建造完整的城市和乡镇，并且最近一直在规划设计容纳设施齐全的社区的空间平台。 土木一词来源于拉丁文词“公民”。在1782年，英国人John Smeaton为了把他的非军事工程工作区别于当时占优势地位的军事工程师的工作而采用的名词。自从那时起，土木工程学被用于提及从事公共设施建设的工程师，尽管其包含的领域更为广阔。 领域。因为包含范围太广，土木工程学又被细分为大量的技术专业。不同类型的工程需要多种不同土木工程专业技术。一个项目开始的时候，土木工程师要对场地进行测绘，定位有用的布置，如地下水水位，下水道，和电力线。岩土工程专家则进行土力学试验以确定土壤能否承受工程荷载。环境工程专家研究工程对当地的影响，包括对空气和地下水的可能污染，对当地动植物生活的影响，以及如何让工程设计满足政府针对环境保护的需要。交通工程专家确定必需的不同种类设施以减轻由整个工程造成的对当地公路和其他交通网络的负担。同时，结构工程专家利用初步数据对工程作详细规划，设计和说明。从项目开始到结束，对这些土木工程专家的工作进行监督和调配的则是施工管理专家。根据其他专家所提供的信息，施工管理专家计算材料和人工的数量和花费，所有工作的进度表，订购工作所需要的材料和设备，雇佣承包商和分包商，还要做些额外的监督工作以确保工程能按时按质完成。 贯穿任何给定项目，土木工程师都需要大量使用计算机。计算机用于设计工程中使用的多数元件（即计算机辅助设计，或者CAD）并对其进行管理。计算机成为了现代土木工程师的必备品，因为它使得工程师能有效地掌控所需的大量数据从而确定建造一项工程的最佳方法。 结构工程学。在这一专业领域，土木工程师规划设计各种类型的结构，包括桥梁，大坝，发电厂，设备支撑，海面上的特殊结构，美国太空计划，发射塔，庞大的天文和无线电望远镜，以及许多其他种类的项目。结构工程师应用计算机确定一个结构必须承受的力：自重，风荷载和飓风荷载，建筑材料温度变化引起的胀缩，以及地震荷载。他们也需确定不同种材料如钢筋，混凝土，塑料，石头，沥青，砖，铝或其他建筑材料等的复合作用。 水利工程学。土木工程师在这一领域主要处理水的物理控制方面的种种问题。他们的项目用于帮助预防洪水灾害，提供城市用水和灌溉用水，管理控制河流和水流物，维护河滩及其他滨水设施。此外，他们设计和维护海港，运河与水闸，建造大型水利大坝与小型坝，以及各种类型的围堰，帮助设计海上结构并且确定结构的位置对航行影响。 岩土工程学。专业于这个领域的土木工程师对支撑结构并影响结构行为的土壤和岩石的特性进行分析。他们计算建筑和其他结构由于自重压力可能引起的沉降，并采取措施使之减少到最小。他们也需计算并确定如何加强斜坡和填充物的稳定性以及如何保护结构免受地震和地下水的影响。 环境工程学。在这一工程学分支中，土木工程师设计，建造并监视系统以提供安全的饮用水，同时预防和控制地表和地下水资源供给的污染。他们也设计，建造并监视工程以控制甚至消除对土地和空气的污染。

汽车专业英语课文翻译1

Types of Automobiles(UNITTWO) 汽车的类型 The automobile industry is a fast developing industry. Form the later 18th century when the first automobile was put on road, this industry has developed tremendously. Now there are thousands of factories all over the world manufacturing numerous types of automobiles. This industry employs crores of men and women directly and indirectly in allied industries. The automobile engines are also being used in engine powered machines for agriculture, construction and manufacturing processes. Various types of small engines are also being used in lawn movers, power saws, snow removers and similar equipment. The automobile industry is a developing and demanding industry which does not find its end or saturation point. There is a great demand for varied types of automotive products, vehicles and engines. There is also a great demand for trained and experienced persons in this industry for diagnosing motor vehicle troubles, repairing and replacing engines components, transmissions, propeller shafts, differentials, axles, steering system components, brake system components, suspension components, air conditioners, heaters, body and glass work. 汽车产业是一个迅速发展的行业。形成后18世纪当第一汽车被放在路,这个行业的发展极大。现在有成千上万的工厂世界各地制造许多类型的汽车。这个行业雇佣了卢比的男性和女性直接和间接地在盟军的产业。汽车引擎也被用于发动机动力机器为农业、建筑业和制造业的过程。各种类型的小引擎也被用于草坪搬家公司,电锯,雪消毒剂和类似的设备。汽车行业是一个发展中国家和要求行业没有找到它的结尾或饱和点。有大量需要不同类型的汽车产品,汽车和发动机。还有一个巨大的需求训练和经验丰富的人在这个行业对诊断机动车麻烦、维修和更换引擎组件、变速箱、螺旋桨轴、差异、轴、转向系统组件,制动系统组件,悬挂组件、空调、热水器、身体和玻璃的工作。 There are numerous types of automobiles used in the world. There are in general three main classifications of the various types of vehicles. 有许多类型的汽车在世界上使用。一般有三种主要分类的各种类型的车辆。 The single-unit vehicles or load carriers. 车辆的单件或负载运营商。 Articulated vehicles. 铰接车辆。 The heavy tractor vehicles. 沉重的拖拉机车辆。 Single-unit vehicles are of conventional four-wheel type. The great majority of vehicles are of two axle design, In these vehicles the front axle is a steering non-driving axle and the rear axle is the driving axle. With the passage of time, a great many changes have taken place in the number of axles and the driving arrangements. 单一制车辆四轮类型的传统。绝大多数的车辆被两个轴的设计,在这些车辆前轴是转向非驱动轴和后轴驱动轴。随着时间的流逝,许多变化已经发生轴的数量和驾驶的安排。 In this classification, digital terms like 4×2, 4×4, 6×4etc,are commonly used. The first figure denotes the total number of wheels and the second figure the number of driving wheels. 在这个分类、数字术语像4×2、4×4、6×4等,被普遍使用。第一个图表示轮子的总数和第二