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of_which用法

of_which用法
of_which用法

of whom和of which用法归纳

1. of表示同位关系:即用于在A+of+B结构,其中的A和B为同位关系。如:

Her sons, both of whom work abroad, ring her up every week. 她的两个儿子,都在国外工作,他们每周都给她打电话来。

We’ve tested three hundred types of boot, none of which is completely waterproof. 我们已经测试过300种靴子,没有一种是完全防水的。

2. of表示整体与部分的关系:即用于“部分+of+整体(which, whom)”结构。如:

He went with a group of people, few of whom were correctly equipped for such a climb. 他和一队人一起去了,其中没有几个人配有进行这样一次登山的适当装备。

The buses, most of which were already full, were surrounded by an angry crowd. 公共汽车大多数都已经挤满了人,它们被愤怒的人群包围着。

I met the fruit-pickers, several of whom were university students. 我遇到了摘水果的人们,其中有几个人是大学生。

3. of表示所属关系:即of用于构成所有格。如:

He’s written a book the name of which I’ve forgotten.他写了一本书,书名我给忘了。

The house the roof of which was damaged has now been repaired. 那幢屋顶被损坏的房子现在已经修好了。

4. of与其他的词构成固定搭配:即of与从句中的某个词语构成固定搭配。如:

He’s married to a singer of whom you may have heard.他与一位歌唱家结了婚,你可能听说过这个人。(介词of与动词hear构成固定搭配,意为“听说”)

注意:介词of后面除接关系代词which, whom外,有时也可能是whose。如:

She had a teddy-bear, both of whose eyes were missing. 她有一个玩具熊,它的两只眼睛都丢了。

高中英语语法:It的完整用法精讲 打印版

高中英语语法:It的完整用法精讲 it可用作人称代词、指示代词、先行词及引导词等。 1. 人称代词it,是第三人称单数中性,代表前文已提到过的一件事物。如: 1)That vase is valuable. It's more than 200 years old. 那个花瓶很珍贵,它有200多年的历史。 2)I love swimming. It keeps me fit. 我喜欢游泳,它能使我保持健康。 当说话者不清楚或无必要知道说话对象的性别时,也可用it来表示。如: 3)It's a lovely baby. Is it a boy or a girl? 宝宝真可爱,是男孩还是女孩? it可用来指代团体。如: 4)The committee has met and it has rejected the proposal. 委员会已开过会,拒绝了这项建议。 it用以代替指示代词this, that.如: 5)--- What's this? --- It's a pen. —这是什么?—是一支钢笔。 6)--- Whose book is that? --- It's Mike's. —那是谁的书?—是迈克的。 2. 指示代词it,常用以指人。如: 7)Go and see who it is. 去看看是谁。 8)--- Who is making such a noise? —是谁发出这样的吵闹声? --- It must be the children. —一定是孩子们。 3.虚义it无指代性,常用作没有具体意义的主语,出现于表示天气、气候、温度、时间、地点、距离等意义的句子中。如: 9)It is half past three now. 现在是三点半钟。 10)It is six miles to the nearest hospital from here. 这里离最近的医院也有六英里。 11)It was very cold; it snowed and grew dark. 天气很冷;天下着雪,渐渐地变黑了。 it也常用来表示一般的笼统的情况。如: 12)It's awful—I've got so much work I don't know where to start. 糟透了——我有这么多工作要做我不知从何开始。 13)How is it going with you? 你近况如何? 14)Take it easy. 不要紧张。 it也常用于下列结构: 15)It looks as if the college is very small. 看起来这个学院很小。 16)It seems as though our plan will be perfect. 似乎我们的计划很完善。 17)It's my turn. 该轮到我了。 it也常用于某些习惯用语中作宾语,各该习惯用语有具体意义,但it并无具体意义。如:cab it 乘车catch it 受责,受罚come it 尽自己分内come it strong 做得过分walk it 步行make it 办成take it out of somebody 拿某人出气 4. 先行词it. it充当形式主语或形式宾语,本身无意义,只起一种先行引导的作用,先行词不重读。后面的真正主语或真正宾语通常是不定式结构、-ing分词结构或名词性从句。 (1)用作形式主语

it的用法归纳

?Never be afraid of grammar ?Collect some examples; ?Watch them very carefully; ?Find out something in common; ?Try to use the rules ---- practise. it用法完全归纳 一、it 作人称代词的用法 1.指事物 作为人称代词,it 可以除人以外的一切事物或动物。如: I dropped my watch and it broke. 我把手表掉在地上摔坏了。 It’s hard work, but I enjoy it. 工作很辛苦,可是我乐意干。 “Where is the dog?”“It’s in the bedroom. ”“狗在哪?”“在卧室里”。 2.指人 it 指人主要用于指不性别不明的婴儿或用于确认某人的身份。如: Is it a boy or a girl? 是男孩还是女孩? There is a knock on the door. It must be the postman. 有人在敲门,一定是邮递员。 【说明】在答语中,常用来指本人,如说It’s me。

3.代替某些代词 代词it 还可用于代替指示代词this, that 以及复合不定代词something, anything, nothing等。如: “What’s this?”“It’s a new machine. ”“这是什么?”“是一种新机器”。 Nothing is wrong, is it? 没出什么问题,是吗? 二、it 作非人称代词的用法 1.基本用法 it 作非人称代词的用法,主要用于指时间、距离、价值、天气、气候及温度等自然现象。如: It’s too late to go there now. 现在去那儿已经太迟了。 It rained all day yesterday. 昨天下了一天的雨。 It can get very hot here. 这里有时会很热。 2.用于某些句型 It’s time for sth. 该做某事了。 It’s time to do sth. 该做某事的时候了。 It’s time for sb to do sth. 某人该干某事了。 It’s (about / high) time + that-从句. 某人该做某事了。(从句谓语用过去式,有时也用“should+动词原形”) It’s first (second) time + that-从句. 某人第几次干某事。(从句谓语用现在完成时)

“的、地、得”用法分析及练习(后附答案)

“的、地、得”用法分析及练习(后附答案) 一、的、地、得用法分析: “的”后面跟的都是表示事物名称的词或词语,如:敬爱的总理、慈祥的老人、戴帽子的男孩、珍贵的教科书、鸟的天堂、伟大的祖国、有趣的情节、优雅的环境、可疑的情况、团结友爱的集体、他的妈妈、可爱的花儿、谁的橡皮、清清的河水...... “地”后面跟的都是表示动作的词或词语,如:高声地喊、愉快地唱、拼命地逃、疯狂地咒骂、严密地注视、一次又一次地握手、迅速地包围、沙沙地直响、斩钉截铁地说、从容不迫地申述、用力地踢、仔细地看、开心地笑笑......” “得”前面多数是表示动作的词或词语,少数是形容词;后面跟的都是形容事物状态的词或词语,表示怎么怎么样的,如:走得很快、踩得稀烂、疼得直叫唤、瘦得皮包骨头、红得发紫、气得双脚直跳、理解得十分深刻、乐得合不拢嘴、惊讶得目瞪口呆、大得很、扫得真干净、笑得多甜啊...... 二、的、地、得用法补充说明: 1、如果“de”的后面是“很、真、太”等这些词,十有八九用“得”。 2、有一种情况,如“他高兴得一蹦三尺高”这句话里,后面的“一蹦三尺高”虽然是表示动作的,但是它是来形容“高兴”的程度的,所以也应该用“得”。

三、的、地、得用法总结: 1、“的”前面的词语一般用来修饰、限制“的”后面的事物,说明“的”后面的事物怎么样。结构形式一般为:修饰、限制的词语+的+名词。 2、“地”前面的词语一般用来形容“地”后面的动作,说明“地”后面的动作怎么样。结构方式一般为:修饰、限制的词语+地+动词。 3、“得”后面的词语一般用来补充说明“得”前面的动作怎么样,结构形式一般为:动词(形容词)+得+补充、说明的词语。 四、的、地、得用法例句: 1. 蔚蓝色的海洋,波涛汹涌,无边无际。 2. 向日葵在微风中向我们轻轻地点头微笑。 3. 小明在海安儿童公园玩得很开心。 五、“的、地、得”的读音: “的、地、得”是现代汉语中高频度使用的三个结构助词,都起着连接作用;它们在普通话中都各自有着各自的不同的读音,但当他们附着在词,短语,句子的前面或后面,表示结构关系或某些附加意义的时候都读轻声“de”,没有语音上的区别。 但在书面语中有必要写成三个不同的字,这样可以区分他们在书面语用法上的不同。这样做的好处,就是可使书面语言精确化。

(完整版)人教版英语选修六高二unit3语法Grammar—it的用法(1)

Section_ⅢGrammar—it的用法(1) 语法图解 探究发现 ①It is a beautiful day here and I am sitting under the big tree at the end of the garden. ②Your mother tells me that you started smoking some time ago and now you are finding it difficult to give it up. ③It is never too late to mend. ④It is no use talking to them. ⑤It is said that he stole the money. ⑥I think it difficult to learn English well. ⑦We make it clear that speaking to the teacher in that way is not polite. ⑧I don't like it when people talk with the mouth full of food. [我的发现] (1)①句it表示天气,②句第一个it代替to_give_it_up作形式宾语;第二个it代替句中所说的“吸烟”的事。 (2)在句③④⑤中it用作形式主语,其中句③用在“It is+形容词+(for/of+sb.)+动词不定式(短语)”中,it指代动词不定式(短语);句④用在“It is+no use/good+动名词(短语)”中,it指代动名词(短语);句⑤用在“It is+said/believed/reported+that从句”中,it指代that 从句。 (3)在句⑥⑦⑧中it用作形式宾语,其中句⑥用在“动词+it+形容词+动词不定式(短语)”中,it指代动词不定式(短语),句⑦用在“动词+it+形容词+that从句”中,指代that 从句;句⑧it用在某些特殊的句式中,指代when从句。 一、it用作人称代词和非人称代词 1.用作人称代词 (1)it用来指代前面的名词或前面提到过的事。 My friend offered me a beautiful gift yesterday, and I like it very much. 我朋友昨天给了我一件漂亮的礼物,我非常喜欢。

高中英语语法知识之It的用法总结

高考英语语法知识之It 的用法总结 1.It is + 被强调部分+ that ... 该句型是强调句型。将被强调的部分放在前面,其它部分置于that之后。被强调部分可以是主语,宾语,状语。强调的主语如果是人,that可以由who换用。 如果把这种句型结构划掉后,应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。 It was they that (who) cleaned the classroom yesterday. It was in the street that I met her father. 2.It was not until + 被强调部分+ that ... 该句型也是强调句型。主要用于强凋时间状语,译成汉语"直到...才...",可以说是not ... until ... 的强调形式。 It was not until she took off her dark glasses that I realized she was a famous film star. = Not until she took off her dark glasses did I realize she was a famous film star. = I didn’t realize she was a famous film star until she took off her dark glasses. 3.It is clear ( obvious, true, possible,certain....) that ..... 该句型中it 是形式主语,真正的主语是that 引导的主语从句,常译为"清楚(显然,真的,肯定...)"是主语从句最常见的一种结构。 It is very clear that he’s round and tall like a tree.= That he’s round and tall like a tree is very clear. 4. It is important ( necessary, right, strange, natural...) that ... 由于主句中的形容词不同,that 后的从句中要用虚拟语气(should + 动词原形),should 可以省去。 It is important that we (should) learn English well. It is necessary that he (should) remember these words. 5. It is said (reported, learned....) that ... 该句型中的it 仍是形式主语,真正主语是that 引导的主语从句。该结构常译为"据说(据报道,据悉...)"。It is said that he has come to Beijing. 6. It is suggested ( ordered ... ) that ... 主句中的过去分词是表示请求,建议,命令等词时,that后的从句要用虚拟语气(should + 动词原形),should 可以省。常译为"据建议;有命令.. It is suggested that the meeting ( should ) be put off. It was ordered that we ( should ) arrive there in two hours. 7. It is a pity ( a shame ... ) that ... 该句型中,that后的从句一般用虚拟语气(should + 动词原形),should可省去.表示出乎意料,常译为"竟然"。没有这种意义时,则不用虚拟语气。 It is a pity that such a thing ( should ) happen in your class. It is a pity that he is ill. 8. It is time ( about time ,high time ) that ... 该句型中that 后的从句应该用虚拟语气,值得注意的是①常用过去时态表示虚拟.②有时也用should + 动词原形,should 不能省。常译为"是(正是)...的时侯..."。 It is time that children should go to bed. = It is time that children went to bed. 9. It is the first ( second ... ) time that ... 该句型中的that 从句不用虚拟语气,而用完成时态。至于用什么完成时态,由主句的谓语动词的时态决定。如果是一般现在时,后面从句用现在完成时态;如果是一般过去时,后面从句则用过去完成时态。该结构中that 可以省去;it有时用this / that 替换.常译为"这是某人第几次做某事了"。 It is the first time I have been here. = This is the first time I have been here. 10 It is the +形容词最高级+ 名词+ that + ….. 该句型中的that 从句不用虚拟语气,而用完成时态。至于用什么完成时态,由主句的谓语动词的时态决定。如果是一般现在时,后面从句用现在完成时态;如果是一般过去时,后面从句则用过去完成时态。该结构中that 可以省去;it有时用this / that 替换.常译为"这是某人做过的最…的事情"。 This is the best film that I have ever seen . That was the worst song that he had heard . 11. It is .... since ...

语法专题十:it的用法

语法专题十:it的用法 1.指代事物、动物、婴儿或未知的人。 2.指天气、时间、距离、自然现象、环境等。 3.代替不定式,作形式主语或形式宾语(常与feel, consider, find, believe, make, take, imagine, think, suppose, regard等连用)。 4.代替动名词,作形式主语或形式宾语: It is no good / no use / useless / dangerous + doing I think it no good / no use / useless / dangerous + doing I think it no use complaining about their prejudice. 5.代替主语从句、宾语从句,作形式主语或形式宾语: It seems / appears / happens / turns out / proves + that… It is certain / likely / possible / probable + that… We have made it clear that she has nothing to do with the case. 6.用于强调句:It is / was … that / who… A student witnessed the car accident at the turning last night. (1 ) ( 2 ) ( 3 ) ( 4 ) (1) _________________________________________________________. (2) _________________________________________________________. (3) _________________________________________________________. (4) _________________________________________________________. It is not until +被强调的部分+ that… I didn’t realize she was a famous film star until she took off her dark glasses. ________________________________________________________________. 7. 其他重要句型: It is important (necessary, right, strange, natural) that…(should+动词原形) It is said (reported, learned…) that… It is suggested (ordered…) that…(should)+动词原形 It is a pity (a sham) that …(should)+动词原形 It happens (seems, looks, appears ) that... It occurs to sb. to do / that…:使某人想起…… It is/ has been +一段时间+ since ...+过去时 It will be +一段时间+ before ... It looks ( seems ) as if … It is no wonder…:难怪 When it comes to…:当谈到…… It comes about that…:发生 8. appreciate, love, like, hate, see to(负责,注意) + it + 从句 巩固练习: 1. It took us over an hour ______ along the street. A. walk B. to walk C. walking D. walked 2. I think it a great honour ______to visit your country. A. to invite B. inviting C. having invited D. to be invited 3. Many people now make ______a rule to buy cards for their friends before Christmas. A. themselves B. it C. that D. this 4.______is very clear to everyone that he's round and tall like a tree.

高中语法it的用法

it的用法 一、考点聚焦 1、it的基本用法 (1)用作人称代词,代替前文提到过的事物。 The train has arrived. It arrived half an hour ago. (2)用以代替提示代词this, that。[来源:学,科,网Z,X,X,K] —What’s this? —It’s a knife. —Whose watch is t hat? —It’s mine. (3)起指示代词的作用,指一个人或事物。 —Who is knocking at the door? —It’s me. (4)指环境情况等。 It was very noisy(quiet) at the very moment. (5)指时间、季节等。 —What time is it? —It’s eight o’clock. It often rains in summer here. (6)指距离。 It is a long way to the school. (7)作形式主语。 It is not easy to finish the work in two days. It is no use crying over spilt milk. It is as pity that you didn’t read the book. (8)作形式宾语。 I think it no use arguing w ith him. I found it very interesting to study English. He made it clear that he was not interested in that subject. (9)用于强调结构。 It was Xiaoming whom(that)I met in the street last night. It was in the street that I met Xiaoming last n ight. It ws last night that I met Xiaoming in the street. It was I who met Xiaoming in the street last night. 2、含有“It is …”的句型 (1)It is time (for sb.) to do sth. It is (high) time that sb. did sth.(虚拟语气) (2)It is + 形容词(+of / for sb.)+ to do sth 通常用 of的词有brave、clever、careful、hopeless、kind、good、naughty、nice、silly、stupid、foolish、wise 等。 (3)It is + 形容词+ that + sb. + (should) do sth.(虚拟语气)[来源:学科网ZXXK] 能用于这个句型的形容词有strange、wonderful、natural、good、proper、right、wrong、well、fortunate、important、necessary、useless、likely、probab le、impossible等。有时可省去should而直接用动词原形。如:It is important that we should pay close attention to grain. It is natural that he(should)say so. (4)It is no use/ good + doing sth. It is no use trying again = It is of no use to try again. (5)It is + 被强调部分+ that/who + …[来源:学科网ZXXK][来源:Z+xx+https://www.sodocs.net/doc/ee2820528.html,] Was it in the street that you met her? Who was it that called him“comrade”? It was not until yesterday that I met my old friend.

标点符号用法分析

标点符号用法 一、标点符号 标点符号:辅助文字记录语言的符号,是书面语的有机组成部分,用来表示语句的停顿、语气以及标示某些成分(主要是词语)的特定性质和作用。 句子:前后都有较大停顿、带有一定的语气和语调、表达相对完整意义的语言单位。 复句:由两个或多个在意义上有密切关系的分句组成的语言单位,包括简单复句(内部只有一层语义关系)和多重复句(内部包含多层语义关系)。 分句:复句内两个或多个前后有停顿、表达相对完整意义、不带有句末语气和语调、有的前面可添加关联词语的语言单位。 陈述句:用来说明事实的句子。 祈使句:用来要求听话人做某件事情的句子。 疑问句:用来提出问题的句子。 感叹句:用来抒发某种强烈感情的句子。 词语:词和短语(词组)。词,即最小的能独立运用的语言单位。短语,即由两个或两个以上的词按一定的语法规则组成的表达一定意义的语言单位,也叫词组。 二、分类 标点符号分为点号和标号两大类。

点号的作用是点断,主要表示说话时的停顿和语气。点号又分为句末点号和句内点号。 句末点号用在句末,表示句末停顿和句子的语气,包括句号、问号、叹号。 句内点号用在句内,表示句内各种不同性质的停顿,有逗号、顿号、分号、冒号。 标号的作用是标明,主要标示某些成分(主要是词语)的特定性质和作用。包括引号、括号、破折号、省略号、着重号、连接号、间隔号、书名号、专名号、分隔号。 (一)句号 1.用于句子末尾,表示陈述语气。使用句号主要根据语段前后有较大停顿、带有陈述语气和语调,并不取决于句子的长短。 2.有时也可表示较缓和的祈使语气和感叹语气。 请您稍等一下。 我不由地感到,这些普通劳动者也是同样值得尊敬的。 (二)问号 主要表示句子的疑问语气。形式是“?”。 1.用于句子末尾,表示疑问语气(包括反问、设问等疑问类型)。使用问号主要根据语段前后有较大停顿、带有疑问语气和语调,并不取决于句子的长短。 2.选择问句中,通常只在最后一个选项的末尾用问号,各个选项之间一般用逗号隔开。当选项较短且选项之间几乎没有停顿时,选项之间可不用逗号。当选项较多或较长,或有意突出每个选项的独立性时,也可每个选项之后都用问号。 3.问号也有标号的用法,即用于句内,表示存疑或不详。 马致远(1250?―1321)。 使用问号应以句子表示疑问语气为依据,而并不根据句子中包含有疑问词。当含有疑问词的语段充当某种句子成分,而句子并不表示疑问语气时,句末不用问号。

初中英语语法:it用作人称代词的用法

初中英语语法:it用作人称代词的用法 it用作人称代词的用法 1. 用于指事物 it用作人称代词最基本的用法就是代替前面已提到过的事物,以 避免重复: This is my watch, it’s a Swiss one. 这是我的手表,它是瑞 士制的。 I cannot find my watch; I must have lost it. 我找不到手表,我一定把它给丢了。 2. 用于指动物或婴儿 除用于指代事物外,还可指动物或性别不详的婴儿: “Where is the cat?” “It’s under the bed.” “ 猫在哪儿?”“在床下。” They got a baby and it was very lovely. 他们生了个孩子, 很可爱。 3. 用于上文提到的情况 He smokes in bed and I don’t like it. 他在床上抽烟,我不 喜欢他这样。 Her mother kept telling her not to go out at night, but it didn’t hel p. 她母亲老叫她晚上不要出去,但是没用。 4. 用于指人 it用于指人主要用确定未知人的身份: “Who is it?” “It’s me.” “是谁啊?”“是我。”

“Listen. Someone is crying.” “Oh, it must be Mary.” “听,有人在哭。”“噢,一定是玛丽。” Someone must have been here. But we have no idea who it was. 一定有人来过,但我们不知道是谁。 5. 指人时与he和she的区别 当it用于指人时,主要用于确定未知的或者是身份不明的人,若 是指已知的或身份明确的人,则应根据情况使用he或she。比较: I hear a knock at the door. It must be the postman. 我听 见有人在敲门,一定是邮递员来了。 Jim is at the door. He wants to see you. 吉姆在门口,他想 见你。 A tall man stood up and shook hands with her. It was the general manager. 一个高个子站起来同她握了手,他是总经理。 The general manager just called. He told us to wait for him at the gate. 总经理刚来过电话,他叫我们在门口等他。 6. 指物时与one的区别 两者均可代替前面提到的事物,区别是:it指的是与前面已提到 的事物为同一物,此时的it等于“the (this, that, my...)+名词”;而one 指的是与前面已提到的事物为同一类物,此时的one等于“a+ 名词”。比较: I have a dictionary but I’ve lent it to Mary. 我有一本词典,但把它借给玛丽了。 I haven’t a dictionary; can you lend me one? 我没有词典,你能借我一本吗?

定语从句用法分析

定语从句用法分析 定语从句在整个句子中担任定语,修饰一个名词或代词,被修饰的名词或代词叫先行词。定语从句通常出现在先行词之后,由关系词(关系代词或关系副词)引出。 eg. The boys who are planting trees on the hill are middle school students 先行词定语从句 #1 关系词: 关系代词:who, whom, whose, that, which, as (句子中缺主要成份:主语、宾语、定语、表语、同位语、补语), 关系副词:when, where, why (句子中缺次要成份:状语)。 #2 关系代词引导的定语从句 关系代词引导定语从句,代替先行词,并在句中充当主语、宾语、定语等主要成分。 1)who, whom, that 指代人,在从句中作主语、宾语。 eg. Is he the man who/that wants to see you?(who/that在从句中作主语) ^ He is the man who/whom/ that I saw yesterday.(who/whom/that在从句中作宾语) ^ 2)whose 用来指人或物,(只用作定语, 若指物,它还可以同of which互换)。eg. They rushed over to help the man whose car had broken down. Please pass me the book whose cover is green. = the cover of which/of which the cover is green. 3)which, that指代物,在从句中可作主语、宾语。 eg. The package (which / that)you are carrying is about to come unwrapped. ^ (which / that在从句中作宾语,可省略) 关系代词在定语从句中作主语时,从句谓语动词的人称和数要和先行词保持一致。 eg. Is he the man who want s to see you? #3.关系副词引导的定语从句 关系副词when, where, why引导定语从句,代替先行词(时间、地点或理由),并在从句中作状语。 eg. Two years ago, I was taken to the village where I was born. Do you know the day when they arrived? The reason why he refused is that he was too busy. 注意: 1)关系副词常常和"介词+ which"结构互换 eg. There are occasions when (on which)one must yield (屈服). Beijing is the place where(in which)I was born. Is this the reason why (for which)he refused our offer? * 2)在非正式文体中,that代替关系副词或"介词+ which",放在时间、地点、理由的名词,在口语中that常被省略。 eg. His father died the year (that / when / in which)he was born. He is unlikely to find the place (that / where / in which)he lived forty years ago.

(完整版)高中语法:it用法

It 的用法 It 可用作实词(代词)和虚词(助词)。实词it 指用于人称和前指(指刚提到的人或物),用于无人称时,做主语,表示时间,距离,天气等。虚词it 可用作形式主语或形式宾语,也用于构成的强调句型。(一)实词(代词) 1. 用作人称代词 1)指人。例如: Who is it? Is it you, Andrew ? Who is making such a noise ? It must be the children. 2)用作前指,代替前文提到过的人或事物。例如: What a beautiful baby ! Is it a boy ? You have saved my life; I shall never forget it. 3 )代替指示代词this, that。例如: “What's this ?” “It'sa flag.” 4 )代替一个双方既知所指的东西 How 'sit going with you ? 2. 用作非人称代词常用作没有具体意义的主语,表示气候,天气,温度,时间,地点,距离等。例如:1)指天气: It 'sdamp and cold. I think it 's going to rain. 2)指时间,季节等: “ what time is it ? ” “It is eight o 'clock. ” I hope it is spring all the year round. 3)指距离 It is five kilometers from the office to my home. 4)指环境,条件等 It was very quiet and peaceful here, It was becoming increasing dangerous. 5)“无人称it ”也用于表达下列2 个结构表达印象和可能性: It seems as if we've known each other for years, (印象) It looks as though I 'm going to fail the test 6)“无人称it ”还用于下列的表达中 as it is事实上So be it但愿如此,好吧That' s it !对,是这样!make it到达,成功(二)虚词(助词) 1. 作形式主语当动词不定式,动名词,或从句做主语时,通常把她们放在谓语后,而用it 做形式主语。例: It is not a good habit to stay up late. (it 表达不定式) It is no use crying over split milk. (it 代表动名词) It'sa waste of time your taking to him (it 表示动名词,动名词前可跟一个动名词) It'sa pity that you didn 'tread the book (it 代表that从句) 2. 作形式宾语 1)当复合宾语中的宾语是不定式,动名词或宾语从句时,往往把宾语放在它的补足语后面, 而用it 作形式宾语。 主语+believe/ consider/count/feel/find/imagine/ think/ make/suppose/take +it+ 宾语补足语(形容词

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第二章“It”用法及其句型和固定搭配讲解 "It" 用法及其句型和固定搭配,是高中英语语法的重点、难点,又是近几年高考的热点,因此应给予充分的重视,现将it用法归纳如下: 一、It用作实词 表达以下概念:指代前文提到的事物,前文中的this, that;替代前文中的内容;指代一位性别不明的小孩或未知的人;指代未指明但谈话双方都知道的那件事;指代时间、天气、气候、距离等自然现象…… 二、It用作形式主语 替代作主语的从句、动词不定式、动名词,而把真正作主语的从句、动词不定式、动名词置于句尾。 It 作形式主语的常见句型: 1. 代作主语的动词不定式,其句型为 (1) It be adj. (for sb.) to do sth. 此处adj. 通常为描述事件的形容词:easy, difficult, hard, necessary, unnecessary, possible, impossible, likely, unlikely, right, wrong, important, unimportant, legal, illegal, well-mannered, ill-mannered, polite, impolite, clear, obvious, certain, suitable, proper, fit, useful, useless, dangerous… 例 It is illegal (for a teenager) to drive a car without a license. (2) It be adj. of sb. to do sth. 此处adj. 通常为描述人的形容词:kind, unkind, nice, rude, cruel, considerate, thoughtful, thoughtless, careful, careless, silly, foolish, stupid, clever, wise, crazy. 例 It's kind of you to help me with the problem. (3) It替代作主语的动名词的常见句型 It's no good/use doing… It's (well)worth doing… I t's (well)worth one's while doing/to do… It's (well)worth while doing/ to do

comparison的用法解析大全

comparison的用法解析大全 comparison的意思是比较,比喻,下面我把它的相关知识点整理给大家,希望你们会喜欢! 释义 comparison n. 比较;对照;比喻;比较关系 [ 复数 comparisons ] 词组短语 comparison with 与…相比 in comparison adj. 相比之下;与……比较 in comparison with 与…比较,同…比较起来 by comparison 相比之下,比较起来 comparison method 比较法 make a comparison 进行比较 comparison test 比较检验 comparison theorem 比较定理 beyond comparison adv. 无以伦比 comparison table 对照表 comparison shopping 比较购物;采购条件的比较调查 paired comp arison 成对比较 同根词 词根: comparing adj. comparative 比较的;相当的 comparable 可比较的;比得上的 adv. comparatively 比较地;相当地 comparably 同等地;可比较地 n.

comparative 比较级;对手 comparing 比较 comparability 相似性;可比较性 v. comparing 比较;对照(compare的ing形式) 双语例句 He liked the comparison. 他喜欢这个比喻。 There is no comparison between the two. 二者不能相比。 Your conclusion is wrong in comparison with their conclusion. 你们的结论与他们的相比是错误的。 comparison的用法解析大全相关文章: 1.by的用法总结大全

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