搜档网
当前位置:搜档网 › 创新大学英语预备级Unit 5 讲义

创新大学英语预备级Unit 5 讲义

创新大学英语预备级Unit 5 讲义
创新大学英语预备级Unit 5 讲义

Unit 5 Life

Part One Listening Comprehension

Task I Listening practice--listen to the word.

1.Guide Ss to read the six phonetic symbols: /e/, /i/, /au/, /ai/

2.Let Ss take turns to read one group of words respectively, and correct the pronunciation if necessary. (10')

3.Write down the vowels on the blackboard, and let Ss read after the teacher. (3')

4.Listen to the tape and tick the word you hear. (5')

5.Play the recording once again and check the answers one by one.(5')

Task I Listening practice--listen to the conversations.

1.Guide Ss to read the choice items so as to get known something of the conversation. (3')

2.Play it once again and let Ss repeat it sentence by sentence. The teacher repeat and explain some difficulty points to make Ss know the contents of the conversation.(5')

3.Play the tape once again sentence by sentence, trigger Ss to repeat the sentences so as to get the exact meaning of the conversations. (3')

Thumb:大拇指thumb a lift/ride:搭便车Thumb up:了不起Sink:下沉theme:主题caught a bad cold:感冒Have my hands full with this report: have + 宾语+ V-ed/ V-ing/ adj/

I will do anything but that. / I will do nothing but that…

.... But if I could... winter vacation/ summer vacation freezing

A means to make a living…Support the family/raise the children

Task II Topic-related listening

1.Let Ss listen to the tape of two conversations and do the exercises.(8')

2.Check their answers without correcting their wrong answers. (12')

3.Listen to the tape once again and then check their answers one more times to see if they can understand the conversations better.(5')

4.Play the tape sentence by sentence and let Ss repeat what they heard.(6')

Part Two Reading

Leading-in

1.As we see just now, the title of this unit is life, then could you tell me what kind of life do you want? Or to be more specific, what is your attitude to life?

Positive; negative…

2.What is your life purpose?

Happiness, fortune, fame, inner peace….

Never give up even the situation is very bad. Sometimes what seems to be bad may turn out to be good for you. Take a positive to life and shake off the troubles, you will be happy and free yourself from hatred.

Task I Reading Comprehension—The Donkey in the Well

1.Give Ss time to read the two passages and do the multiple choices.

Tell Ss to actively read the passage and analyze the text organization while reading.

Try to guess what will be told in the following part will be interesting for you to read.

2.Explain the difficult sentences.

Task I Reading Comprehension—Study, Being Fit May Outweigh Being Fat

1.Read through the passage and do the exercise. (15')

No matter you are overweight or not, young or old, take exercises on a regular basis, and you will be fitter.

2. Check the answers in the fast reading. (5')

Task II Fast Reading—Table for Two

1.Tell Ss they are going to read an interesting story about the love of the author's parents.

2.Give Ss time to read the passage and get prepared to tell the story in English.

3.Guide Ss to recall the story together.

The mother likes writing and wants to be a writer…

The father likes painting…

They meet in a restaurant when the father asks to share the table with the mother because the restaurant is full…

They get known to each other and made a good impression to each other…

The mother gives him the phone number and the book…

The father paints the mother according to his memory…

Part Three Intensive Reading

Leading-in

There are some leading-in questions about life:

1) Do you have any difficulties paying for your education?

No, because I was born with a silver spoon in my mouth./ My parents pay for it./ I get help from relatives and friends./I won the scholarship. / I can apply for loan and financial aid.

Yes, because I do not want to depend on my parents any more.

2)Do you have any effective ways to save money on campus? If you do, what are they?

Win scholarship./get grants/apply for a part-time job/use second-hand books/ avoid credit card/ stay away from video games/watch movies on computer instead of in cinema/ study hard and pass all the exams so as not to worry about the make-up exam fee.

3)What should we do when meeting with problems on campus?

It is a long lane that has no turning.

The sharper the storm, the sooner it's over.

Don't panic! It may not be as bad as it seems and you may have a number of alternatives if you proceed systematically.

Remember, it is never too late to seek advice.

New words and expressions

1. Let Ss read the new words by themselves. While reading, try to get familiar with their meaning and usage. (8')

2. Let Ss read after the teacher and guide Ss to remember the words. (15')

Pinch: suffering by lack of necessary things (困苦,穷苦); grip(捏,拧,夹)

Everyone knew he was in a pinch.

She pinched his arm as hard as she could.

Feel the pinch: have financial difficulties.

It was six months since he lost his job, so he's beginning to feel the pinch.

Penny-pinching--penny-pincher

Government penny-pinching is blamed for the decline in food standards.

Challenge: sth. that tests strength, skill, or ability. Face the challenge

This job doesn't really challenge him.

Martin now faces the biggest challenge of his career.

Take care of: to look after.

Her job is to take care of the children.

They appointed her to take care of that old man.

Hardship: a condition that is difficult to endure.

He was willing to face any hardship in fulfillment of his duty.

Take sb./ sth. for granted: 理所当然

Don't take his help for granted.

We shouldn't take anything for granted.

On campus:On the grounds of a university, college, or school.

Private automobiles are not allowed on campus.

Handle: to manage, deal with or be responsible for.

She cannot handle the pressure of examination.

She handled travel arrangements for these foreign visitors.

Financial--finance

The company is in financial difficulties.

Help sb. out: help sb. because they are busy or have problems

She's always willing to help me out.

Don't count on other people to help you out of trouble.

Afford: have enough money or time to buy or to do sth.

We are able to afford a new car.

Take one’s chance: take a risk and hope for a good outcome.

Let's go there to take our chances.

Apply: make a formal request for sth.

I am continuing to apply for jobs.

Approve: accept(批准,通过);think sb./ sth. is good, acceptable or suitable(同意,赞成). The government has approved a financial program.

I told my mother I wanted to leave school but she didn't approve.

Pay off: pay back the money.

I need to pay off all my debts before I leave the country.

Relax--relaxed—relaxation

Qualified: having suitable knowledge, experience, or skills

I was qualified for work-study, but seventy dollars every two weeks is not much to live on. Tom is well qualified for his new role.

Live on: have enough money to buy food and other necessity.

His whole family lives on his salary.

So far: until now

So far, so good.

I can trust him so far.

Stick to: continue doing

We must stick to our promise.

Relieve: reduce sb’s pain, unpleasant feelings or pressure relieve sb. of sth.

It will relieve her of a tremendous burden.

Come up with: produce money(拿出钱); think of an idea, plan or solution(想出办法、主意) Maybe they cannot come up with the money.

I hope you can come up with a better plan.

Look forward to: excited and pleased about sth. that is going to happen

I look forward to hearing from you in the near future.

We look forward to seeing you again.

Survive: remain or continue in existence or use

Most women will survive their spouses.

Capable: having the ability or capacity

You are capable of better work than this.

Text—Feeling the Pinch

1.Skim the text quickly and figure out the text organization, then finish the Ex. on P109. (15')

2.When Ss finish the Ex, check all the answers. (10')

3.Explain the text in detail.(45')

1) Have no idea of:对...一无所知

You have no idea of the pain I feel.

2)Encounter:

The only hardships I encountered were paying for gasoline...

The government has encountered strong opposition to its plans to raise income tax.

3) Not only:

I could not move into my dorm room until my balance was paid.

You can't go out and play until you've done your homework.

The war didn't end until 1972.

He didn't come until the class was over.

He said he would not get married until he had found a satisfactory job.

He didn't go to bed until he had finished his reading assignments

4) No longer:

The city's water supply is no longer adequate for its need.

We can no longer support the President.

5) Have sth. done:

Having my tuition bill paid off, I felt relaxed.

She had her purse stolen.

Had all her money stolen

Have the house painted

Had his leg broken

Their request refused

I'm having my car fixed.

Part Four Oral Practice

1.topic:

1)What kind of life do you want to live? Try to use a metaphor/sentence to describe the real life. Life full of adventures/challenges.

Peaceful and meaningful life.

Life is like a box of chocolates and you never know what pie it will be.

Life can be seen as a leaf of paper and each of us may write down his own words.

Life is a series of trying to make up your mind.

2) In order to lead the ideal life you expect, what should you do?

Give more and expect less.

Take an optimistic attitude to life.

2. Let Ss read the useful expressions after the teacher

3. Ask some Ss to translate the sentences in turn.

4. Let Ss read the poem loudly and try to remember the part they agree to a large degree.

New words: sour 酸deceit 欺骗gloom 忧郁doom 厄运greed 贪婪evil creed 邪恶的信条lust 贪欲destined 命中注定

5. Choose one or two Ss to read the poem in class.

Part Five Grammar—it的用法

1. It 作人称代词

2. It 作先行代词(代替主语,宾语)

作形式主语:

1)代替不定式

2)代替动词-ing形式

3)代替由连接代词或链接副词引导的名词从句

作形式宾语:

1)代替不定式

2)代替动词-ing形式

3)代替that引导的名词从句

3. It 作非人称代词(时间,天气,季节,距离,环境或者情况)

4. It 用于强调句型:It is(was)+被强调部分+that(who)+原句其他部分

1)强调主语

2)强调宾语

3)强调宾语补语

4)强调状语(时间或地点)

5)强调主语补语

5. It 的其他习惯用法

Can you make it to the hospital?

Let's call it a day

I take it that you don't want to do it, but you have to.

It is just that he hasn't studies hard enough.

How does it go in your school?

He will be for it if he doesn't get home on time.

6. Exercises

Guide Ss to finish the exercises sentence by sentence.

Assign them to choose 5 of the sentences to translate after class.

7. Ask Ss to do the exercises one by one.

大学英语精读预备级课后答案(完整)

大学英语精读预备级课后答案(完整) Unit1How to be a Successful Language Learner Text A Learning to Think All Over Again 1substituted 2analogy 3represented 4associated 5challenge 6converted 7concept 8reduced 9image10bundles11choose12pointed13instead14 various 1get away from 2put together 3getting into 4broken into 5a great deal 6Over and over again 7depend on 1took

2go 3take 4go 5go 1what caused the fire 2what site of shoe your father wears 3what looked like a ball 4what our family and friends do for us 5what she had bought for his birthday1.Translation翻译 1.What the boy likes to do most is putting together building blocks. 2.In terms of previous working experience,John is the best choice for this position. 3.My physics teacher often uses analogy to explain some difficult concepts. 4.With the help of his family and friends,Tom build up his publishing business bit by bit. 5.Linda was not able to go to that famous college,but she planned to start all over again rather than give up the challenge. 6.This company has a very good public image.People always

新视野大学英语预备级1课后练习题翻译

新视野大学英语读写教程预备级1课后翻译答案 UNIT 1 Section A Translation V 1.It is reported that he is very rich and that he is a man who trades in weapons. 据报道,他非常富有,是做武器交易的。 2.Men or women of any country should be against war as it can destroy the country. 任何国家的人,无论男女,都反对战争,因为战争会毁灭国家。 3.People call Nobel a man of peace and a man full of love 人们称诺贝尔是一个致力于和平事业的人和一个富有爱心的人 4.It is very dangerous to cross the river during the raining season. 在雨季度过那条河非常危险 5.He did not know what to do, as it was new to him to build roads through mountains. 他不知所措,因为对他来说开山修路是件新鲜事 Translation VI 1.诺贝尔在最合适不过的时候发明了他的炸药。 Alfred Nobel invented his explosive at a perfect moment in time. 2.他要考虑在他逝后让人们用最佳的方法使用他的遗产。 He wanted to think of the best way for people to use his money after his death 3.全世界按照他所希望的方式怀念他,铭记他:诺贝尔,一个致力于和平事业 的人。 The world thinks of him the way he wanted to be remembered: Nobel, a man of peace 4.他做出决定,在他去世之后,他的遗产应当用来奖励那些在科学、文学和世 界和平等领域做出卓越贡献的人。 He decided that after he died, his money should be used for a prize to honor people who did great things in science, writing, and world peace 5.最早的诺贝尔奖在1901年授予的,这个奖项不久便成会人们在上述领域所 获得的最高荣誉。 The first Nobel Prizes were awarded in 1901, and they very soon became the greatest honor that a person could receive in these fields UNIT 2 Section A Translation V 1.He has visited 20 countries, as he is interested in all sorts of cultures and customs. 因为他对各种文化和习俗感兴趣,他访问过20个国家 2.Nobel preferred people to remember him as a man of peace. 诺贝尔希望人们把他当作热爱和平的人来记住他 3.But not everyone would agree with you that men and women have the same abilities. 但不是人人都同意你的观点,认为男人和女人具有同样的能力 4.That is a very good example of how the language has changed as a result of the women’s movement.

大学英语预备级课后答案

Key to Exercises Unit 1. Text A III. Vocabulary Activities 1.1) substituted 2) analogy 3)represented 4) associated 5) challenge 6) converted 7) concept 8) reduced 9) image 10) bundles 11) choose 12) pointed 13) instead 14) various 2. 1) Home should be a place where people can get away from fear and danger. 2) Professor Valentine put together a reading list and asked her students to read all the articles on the list. 3) Jennifer is getting into fashion design. 4) A difficult task is far easier to finish if it is broken down into smaller, easier pieces. 5) After taking the medicine, the patient felt a good deal better. 6) Over and over again I told Steve to give up smoking, but he never listened to me. 7) Whether he can be hired or not will depend/depends on the job interview. IV. Usage 1. took 2. go 3. take 4. go 5. go V. Structure 1. what caused he fire 2. what size of shoes my father wears 3. what looked like a ball 4. what our family and friends do for us 5. what she had bought for his birthday VI. 1. What the boy likes to do most is putting together building block. 2.In term of previous experience, John is the best choice for the position. 3.My physics teacher often uses analogy to explain some difficult concepts. 4.With the help of his family and friends, Tom build up his publishing business bit by bit. 5.Linda was not able to go to that famous university, but she planned to start all over again rather than give up the challenge. 6.This company has a very good public image. People always associate its product with high quality and good service.

2020年秋人教版英语必修二课后习题:Unit5Music5.1(含答案)

Unit5Music SectionⅠWarmingUp,Pre-reading, Reading&Comprehending 课后篇巩固探究 一、用方框内所给短语的适当形式填空 1.When I was a little boy,I always becoming a famous writer in the future. 答案:dreamed of 2.People too much importance examination results. 答案:attach;to 3.The customer asked whether there was a discount if he paid . 答案:in cash 4.We dare not our teacher,because she is serious. 答案:play jokes on 5.Most people in this city by working in the car factory. 答案:earn their living 6.As is announced,the famous singer will come here to . 答案:put on performances 7.He suggests that we ask someone who is this kind of machine to repair it.

答案:familiar with 8.In order to fish,Jim started to the ice on the frozen lake. 答案:break up 9.,I don’t think I was helpful in your work. 答案:To be honest 10.The widow (寡妇) a little money that her husband left for a living.答案:relies on 二、单句语法填空 1.Mary and John were good friends,but then they had a quarrel and broke. 答案:up 2.He stayed in Shanghai for ten days or . 答案:so 3.Don’t rely going abroad for our holiday—we may not be able to afford it. 答案:on 4.If they would not like to accept the check,we must pay cash. 答案:in 5.He stood there and saw a lot of (passer-by). 答案:passers-by 6.We attach importance education and encourage constant learning and thinking.答案:to 7.He is always (dream) of becoming an actor. 答案:dreaming 8.After the earthquake,a lot of large stones (roll) down from the mountain.

大学英语精读预备级课后答案(全)

大学英语精读预备级课后答案(全) 上海外语教育出版社,第三版大学英语精读预备水平,第一册,第二册,第三册,第三册,第四册,第五册,第六册 大学英语课后练习参考答案翻译词汇 2。就以前的工作经验而言,约翰是这个职位的最佳人选。 3。我的物理老师经常用类比来解释一些困难的概念。 4。在他家人和朋友的帮助下,我不确定这是不是真的。1999年课文学习重新思考 1年替换2类比3表示4相关5挑战6转换7概念8简化 9年图像10捆绑11选择12指向13而不是14各种 1年摆脱2放在一起3分成4分成5大量6反复 7年依靠 1年带走2走3带走4走5走 1年是什么引起了火灾 2年你父亲穿的鞋的位置 3年看起来像一个球 4年我们的家人和朋友为我们做了什么 5年她为他的生日买了什么1。男孩们最喜欢做什么?1995.琳达没能上那所著名的大学,但她计划从头再来,而不是放弃挑战。 6。这家公司有很好的公众形象。人们总是把它的产品与高质量的和良好的服务联系在一起。 课文B学习语法由\

1认识到2以后在3依靠4最轻微的5选择6算出7同意82 他们知道我的方法 3 必须认真思考每一个 句子一个不错的选择 1 第2单元父母 文本A父亲,答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:答:爸爸和饼干1睡过头2失望3年级4父母5图6大惊小怪7有它在8袋9态度 |我们将改变我们对父母的看法。2 教我们什么?所有这些都是 ,因为他们真的爱我们3 名儿童 4是表达感激的时候了感谢您的父母对我们的爱 unit3儿童教育课文我们都在这里学习 1技工2困惑3合格4面试 5稀缺6优秀7严重8执照9小学 10转11表扬12到达13定居14正式15卷 1关闭2拖把向上3获得

极坐标与参数方程讲义

极坐标与参数方程 一、极坐标知识点 1.极坐标系的概念 (1)极坐标系 如图所示,在平面内取一个定点0,叫做极点,自极点0引一条射线Ox,叫做极轴;再选定一个长度单位,一个角度单位(通常取弧度)及其正方向(通常取逆时针方向),这样就建立了一个极坐标系. 注:极坐标系以角这一平面图形为几何背景,而平面直角坐标系以互相垂直的两条数轴 为几何背景;平面直角坐标系内的点与坐标能建立一一对应的关系,而极坐标系则不可?但极 坐标系和平面直角坐标系都是平面坐标系? (2)极坐标 设M是平面内一点,极点0与点M的距离|0M|叫做点M的极径,记为;以极轴0X为始边,射线0M为终边的角XOM叫做点M的极角,记为?有序数对(,)叫做点M的极坐标,记作M (,). 一般地,不作特殊说明时,我们认为0,可取任意实数? 特别地,当点M在极点时,它的极坐标为(0,)(€ R).和直角坐标不同,平面内一个 点的极坐标有无数种表示? 如果规定0,0 2 ,那么除极点外,平面内的点可用唯一的极坐标(,)表示; 同时,极坐标(,)表示的点也是唯一确定的? 2.极坐标和直角坐标的互化 (1)互化背景:把直角坐标系的原点作为极点,x轴的正半轴作为极轴,并在两种坐标系 中取相同的长度单位,如图所示: ⑵互化公式:设M是坐标平面内任意一点,它的直角坐标是(x,y),极坐标是(,)( 0),于是极坐标与直角坐标的互化公式如表:

在一般情况下,由tan确定角时,可根据点M所在的象限最小正角 注:由于平面上点的极坐标的表示形式不唯一,即(,),(,2 ),(, ),(, ),都表示同一点的坐标,这与点的直角坐标的 唯一性明显不同.所以对于曲线上的点的极坐标的多种表示形式,只要求至少有一个能满足 极坐标方程即可.例如对于极坐标方程,点M(,)可以表示为 4 4 5 (, 2 )或(, 2 )或(-, 等多种形式,其中,只有(,)的极坐标满足方 4 4 4 4 4 4 4 4 程 、考点阐述考点1、极坐标与直角坐标互化

高中英语必修二unit5 music说课稿

高中英语必修二unit5 music说课稿

高中英语必修二unit5 music说课稿 各位老师:大家好! 作为一名新课标下的英语老师,让学生愉快地、充满自信地走进我的英语课堂,是我最大的愿望,让学生在我的英语课堂上享受快乐和成功是我孜孜以求的。多年来,我为实现自己的梦想和追求不懈地努力着。今天,借此平台,希望各位老师指导我的说课,是我更加自信的完成老师的使命。 一、说教材内容和学情 我说课的内容选自人教版普通高中课程标准实验教科书英语必修二第五单元。本单元的话题是Music,它是中学生日常生活中比较感兴趣的话题之一。它中心话题是“音乐”和“音乐类型”,单元的各项活动的设计都是围绕着以音乐类型和不同音乐对人的影响展开的。而对于音乐和音乐家,这种学生感兴趣的话题、与切身相关的情节,很容易就会引起学生们的极大兴趣,因此他们学习的参与性和积极性也会较高。在引导学生阅读前,让学生对不同种类的音乐的英文说法加以熟悉和理解,开阔的学生的视野。而在阅读后,结合现在学生中普遍存在的“选秀热”这一热点问题,引发学生的反思。 我的教学对象是高一学生。高中生思想逐渐成熟,对美的追求和对成功的渴望也越来越强烈,因此课堂中除了关注语言知识学习和语言技能训练外,更应该注重其内心的理解和个人对事物的看法。 二、三维教学目标 根据《新课程标准》关于总目标的具体描述,结合高一学生实际,我把教学目标设定为以下几个方面: (一)知识目标和能力目标 学习一些相关的单词、短语和句式,特别是关于音乐种类的词汇和表达对音乐感受的词。比如:动词prefer,feel,enjoy,appreciate,find.calm,形容词 relaxed,sleepy,cheerful,energetic,lively。能用英语表达建议、偏好和爱好。 学生熟悉掌握不同的音乐类型。学会灵活运用课文中的句式,自如的表达自己对音乐的理解和感受,并且从更深一层上去把握不同音乐所表达的不同意义。 (二)情感态度 1.熟悉各种音乐形式,了解音乐在人们生活中的重要性,提高音乐修养 2.从谈论“音乐人的成功”入手使学生了解到做什么事都需要付出艰辛的努力。所谓“台上一分钟,台下十年功”,深化学生的德育教育,进一步激发学生学习的动力。 3.通过开展小组活动,指导学生积极与人合作,相互学习,相互帮助,培养其团队精神。(三)学习策略 学生在一定程度上形成自主学习,利用所教句型和所学知识积极与同学进行真实交流,提高交际策略,培养学生的英语思维表达能力。 三、说教学目标和教学重难点 这一课的重点有两点: 1.新课标要求在语言教学的同时必须能够深化学生的德育教育。因此,如何调动学生的积极性,使学生理解成功来之不易本课的重点之一。在教学过程中教师利用多媒体视频介绍音乐人经过多年的准备和磨练终于取的成功的例子启发学生思考自己的人生:要想拥有美好的人

预备级英语

2011年下半年《大学英语预备级》考前辅导 一、选择填空(每题1分,共15分) 1. I’ll finish this work A a week. a. in b. after c. before d. on 2. Neither of the twins D clever, i’m afraid. a. aren’t b. are c. isn’t d. is 3. The ice is too thin for you to C . a. walk b. walking c. walk on it d. walk on 4. I’ll give it to her as soon as she D back . a. come b. came c. will come d. comes 5. We all carefully but we C nothing. a. listened…listened to b. heard…heard c. listened…heard d. heard…listened to 6. Is this the key B the door? a.of b.to c.for d. from 7. there A a table tennis match sometime next week, isn’t there? a. is going to be b. is going to have c. will have d. will be 8. she told her daughter B in the street any more. a. to not play b. not to play c. don’t play d. not play 9. “what’s on the desk?” “______D __ some glasses.” a. it is b. there is c. they are d. there are 10. you can have C fish meat, but you can’t have . a. neither…nor…both b. both…and…neither c. either…or…both d. either…or…neither 11. there’s not D work to do. i can leave soon. a. many b. a c. little d. much 12. the box on the desk is made A wood. a. of b. from c. in d. out 13. you can’t go into the room because it C yet. a. isn’t cleaned b. not cleaned c. hasn’t been cleaned d. won’t be cleaned 14. she B has lunch at home on sundays. a. don’t b. hardly c. does n’t d. not 15. what’s wrong D this machine? it doesn’t work. a. on b. at c. of d. with

2018届高三文科数学讲义 极坐标和参数方程

2018届高三文科数学讲义 极坐标和参数方程 一:极坐标 公式:cos x ρθ=,sin y ρθ=,222x y ρ=+,tan y x θ=(0x ≠) (一):自我训练: 1.将以下极坐标转化为直角坐标 (1) ??? ??32π, (2?? ? ??324π, 2.由直角坐标(x.y )转化为极坐标()θρ, (1)()2-2-, (2)(4,0) (3)(0,4) 3.将直角坐标方程转化为极坐标方程 (1)直角坐标方程x+y+2=0转化为极坐标方程为: (2). 圆直角坐标方程122=+y x 转化为极坐标方程为: 4、将极坐标方程转化为直角坐标方程 (1)直线2)4cos(=-π θρ的斜率为: (2)直线4 π θ=的直角坐标方程为: (3)化极坐标方程2cos ρθ=为直角坐标方程为: (4)圆的极坐标方程是 2=ρ,则其表示的曲线方程为 二 参数方程 参考公式: 1cos sin 22=+αα, αααcos sin 22sin ?=, ααα2 2s i n 211c o s 22c o s -=-= 直线的参数方程为:?? ?+=+=α αsin cos 00t y y t x x )(为参数t ,其中α为直线的倾斜角; 圆2 2 2 )()(r b y a x =-+-的参数方程为:?? ?+=+=θθ sin cos r b y r a x )(为参数θ 椭圆)0(,122 22>>=+b a b y a x 的参数方程为:?? ?==θ θsin cos b y a x )(为参数θ 一、直线方程的互化 1.直线 ? ??==t y t x 2)(为参数t 的普通方程为 ,斜率为:

大学英语精读预备级课文翻译(详细~)

第一单元如何成为一个成功的语言学习者 TEXT A How can you learn a foreign language well? According to the author of this te xt, you might need to think in a new way, a process almost like going back to chil dhood again… 如何学好一门外语?根据这篇文章的作者,你也许需要用一种新的方式去思考,这一过程几乎像是再次回到童年。。。 Learning to Think All Over Again 学会重新思考 When you were a child, you didn’t know what a tree was at first. Somebody had to t ell you. Probably your parents took you outside, pointed to a tree and said, ”Tree!” Yo u had to learn to associate the sound of the word “Tree” with the big green leafy thing yo u saw in front of you. 当你还是个孩子的时候,起初你并不知道树是什么,得有人告诉你。也许你的父母带你到外面,指着一棵树说,“树!”你得学会将“树”这个词的音跟你眼前那个高大的绿色的长满叶子的东西联系起来。 That’s what you must learn to do again when you are learning a foreign language. Y ou need to learn to associate sounds with objects, and to think in a new way. Only this ti me, since you are grown up, you will be able to understand what needs to be done muc h faster. You’ll know why somebody is pointing to a tree and saying a strange word. Yo u may even have to relearn it many times before you finally actually learn it. 这是你在学习外语是必须再次学会做的事。你得学会将声音和事物联系起来,用一种新的方式思考。只是这一次,因为你已经长大,所以能够更快地去理解需要做的事。你会知道为什么有人指着一棵树,说着奇怪的单词。但是你仍然得学习那个新单词。说不定还得重复学习多遍才能最终真正的掌握它。 There is an important idea here. In America our name for that big green leafy thing i s ”tree”, but in Germany the name for that thing is “Baum”. In Arab countries the name i s “shajra”. And in China they say ”shu”. These various words are not themselves “tree s”. They are just some of the many hundreds of different sounds used in the world to rep resent that great big green leafy thing. 这里有一个重要的概念。在美国我们称那个高大的绿色的长满叶子的东西为tree,但是在德国那东西叫Baum。在阿拉伯国家,它的名字是shajra。在中国,我们称它为shu。这些各式各样的词本身并不是树。它们只是世界各地用来代表那个高大的绿色的长满叶子的东西的几百种声音中的几个。 To learn a foreign language you must get away from the idea of translating words. Tr anslating takes too much time and mental energy. You will never learn to really speak an d understand a foreign language if you have to translate in your mind. Instead, learn to associate the new sound directly with the image in your mind. So when we hear the

高中数学 选修4-4参数方程讲义

——基础梳理—— 1.椭圆的参数方程 (1)中心在原点,焦点在x 轴上的椭圆x 2a 2+y 2b 2=1(a >b >0)的参数方程是__________.规定参数φ的取值范围为__________. (2)中心在(h ,k)的椭圆的普通方程为-a2+-b2=1,则其参数方程为__________. 2.双曲线的参数方程 (1)中心在原点,焦点在x 轴上的双曲线x2a2-y2b2 =1(a >0,b >0)的参数方程是__________.规定参数φ的取值范围为__________. (2)中心在原点,焦点在y 轴上的双曲线y2a2-x2b2 =1(a >0,b >0)的参数方程是__________. 3.抛物线的参数方程 (1)抛物线y2=2px(p >0)的参数方程为__________,t ∈__________. (2)参数t 的几何意义是__________. [答案] 1.(1)????? x =acos φy =bsin φ(φ为参数) [0,2π) (2)????? x =h +acos φy =k +bsin φ (φ为参数) 2.(1)????? x =asec φy =btan φ (φ为参数) [0,2π),且φ≠π2,φ≠3π2 (2)????? x =btan φy =asec φ(φ为参数) 3.(1)????? x =2pt2y =2pt (t 为参数) (-∞,+∞) (2)抛物线上除顶点外的任意一点与原点连线的斜率的倒数 自主演练 1.已知方程x2+my2=1表示焦点在y 轴上的椭圆,则() A .m <1 B .-1<m <1 C .m >1 D .0<m <1 [解析]方程化为x2+y21m =1,若要表示焦点在y 轴上的椭圆,需要1m >1,解得0<m <1.故应选D.

英语必修二unit5 课文原文+单词+音标

Unit 5 Music The band that wasn’t Have you ever wanted to be part of a band as a famous singer or musician Have you ever dreamed of playing in front of thousands of people at a concert, at which everyone is clapping and appreciating your music Do you sing karaoke and pretend you are a famous singer like Song Zuying or Liu Huan To be honest, a lot of people a ttach great importance to becoming rich and famous. But just how do people form a band Many musicians meet and form a band because they like to write and play their own music. They may start as a group of high-school students, for whom practising their music in someone’s house is the first step to fame. Sometimes they may play to passers-by in the street or subway so that they can earn some extra money for themse lves or to pay for their instruments. Later they may give performances in pubs or clubs, for which they are pa id in cash. Of course they hope to make records in a studio and sell millions of copies to become millionaires! However, there was one band that started in a different way. It was called the Monke es and began as a TV show. The musicians were to play jokes on each other a s well as play music, most of which was based loosely on the Beatles. The TV organi zers had planned to find four musicians who could act as well as sing. They put an advertisement in a newspaper looking for rock musicians, but they could only find one who was good enough. They had to use actors for the other three members of the band. As some of these actors could not sing well enough, they had to rely on other music ians to help them. So during the broadcasts they just pretended to their perfor mances were humourous enough to be copied by other groups. They were so popular that their fans formed clubs in order to get more familiar with them. Each week on TV, the Monkeeswould play and sing songs written by other ,after a year or so in which they became more serious about their work, the Monkees started to play and sing the ir own songs like a real band. Then they produced their own records and started tou ring and playing their own music. In the USA they became even more popular than the Beatles and sold even more records. The band broke up about 1970, but happily they reunited in the mi d-1980s. They produced a new record in 1996, with which they celebrated their form er time as a real band. Book 2 Unit 5 △classical /'kl?sikl/adj. 古典的;古典文艺的 roll /r?ul/ vt. & vi. 滚动;(使)摇摆n. 摇晃;卷;卷形物;面包圈 △rock’n’roll(rock-and-roll) 摇滚乐 △orchestra /'?:kistr?/ n. 管弦乐队 △rap /r?p/n. 说唱乐 folk /f?uk/ adj. 民间的 jazz /d??z/n. 爵士音乐 △choral /'k?:r?l/ adj. 唱诗班的;合唱队的 △the Monkees /m??ki:z/ 门基乐队 musician /mju:'zi?n/ n. 音乐家 dream of 梦见;梦想;设想

最新新视野大学英语读写教程预备级1课后翻译答案

UNIT 1 汉译英 1. 据报道,他非常富有, 是做武器交易的。(trade in) It is reported that he is very rich and that he is a man who trades in weapons. 2. 任何国家的人,无论男女,都应反对战争, 因为战争会毁灭国家。(destroy) Men or women of any country should be against war as it can destroy the country. 3. 人们称诺贝尔是一个致力于和平事业的人和一个富有爱心的人。 (a man full of) People call Nobel a man of peace and a man full of love. 4. 在雨季渡过那条河非常危险。(cross the river) It is very dangerous to cross the river during the raining season. 5. 他不知所措,因为对他来说开山修路是件新鲜事。(build roads through mountains) 英译汉 1. Alfred Nobel invented his explosive at a perfect moment in time. 诺贝尔在最合适不过的时刻发明了他的炸药。 2. He wanted to think of the best way for people to use his money after his death. 他要慎重考虑在他逝世后让人们用最佳方式使用他的遗产。 3. The world thinks of him the way he wanted to be remembered: Nobel, a man of peace. 全世界按照他所希望的方式怀念他,铭记他:诺贝尔,一个致力于和平事业的人。 4. He decided that after he died, his money should be used for a prize to honor people who did great things in science, writing, and world peace. 他做出决定,在他去世之后,他的遗产应当用来奖励那些在科学、文学和世界和平等领域做出卓越贡献的人。 5. The first Nobel Prizes were awarded in l90l, and they very soon became the greatest honor that a person could receive in these fields. 最早的诺贝尔奖是在1901年授予的,这种奖励不久便成为人们在上述领域所能获得的最高荣誉。 UNIT 2 汉译英 1. 因为他对各种文化和习俗感兴趣,他访问过20个国家。(all sorts of) He has visited 20 countries, as he is interested in all sorts of cultures and customs. 2. 诺贝尔希望人们把他作为热爱和平的人来记住他。(prefer) Alfred Nobel preferred people to remember him as a man of peace. 3. 但不是人人都同意你的观点,认为男人和女人具有同样的能力。(agree with) But not everyone would agree with you that men and women have the same abilities. 4. 这是一个很好的例子,说明受妇女运动的影响语言是如何变化的。(as a result of) That is a very good example of how the language has changed as a result of the women’s movement. 5. 两性在语言上的差异,实际上在所有语言中都有。(be present in) The differences between the sexes in language are, in fact, present in any kind of language. 英译汉 1. I know you’ve written a lot about how language changes when we talk about the two sexes. 我知道,你写了很多论著, 探讨人们在谈论两性时语言如何发生变化。 2. You know English has several special words that peo ple sometimes use when they’re talking about women. 你知道,英语中有一些特殊的词是人们谈论女性时常用的。

相关主题