中考it用法总结与练习.docx

中考it用法总结与练习it是英语中的重要单词之一，也是中考中经常考到的词汇，中考中经常考查的题型有单项填空、完形填空等；考查的内容有：①it作人称代词的用法；②it表示时间、天气、距离等的用法；③it作形式主语或形式宾语的用法一、it作人称代词的用法it用作代词，意为“它”，既可以指物，也可以指人it作人称代词，可以用来代替一个名词、一个短语、一个从句或一个句子，以避免它们在句中的重复这时它可以指提到过的，也可以指未提到过的，在句中作主语、宾语或表语例如：1.指事物作为人称代词，it可以指代除人以外的一切事物或动物例如：I d________ my watch and it broke.我把手表掉在地上摔坏了It’s hard work, but I enjoy it. _____________________________—Where is the dog?狗在哪？—It’s in the bedroom.在________里You have __________________; I shall never forget it.你救了我的命，我永远不会忘记的2.指人it指人主要用于指性别不明的婴儿，并不确知的某人，只听其声而不见其人的人，或用于确认某人的身份。

例如：Is it a boy or a girl?是男孩还是女孩?There is a ________ on the door. It must be the ________.有人在敲门，一定是邮递员在答语中，常用来指本人，如说It’s me.)—Listen! Someone ____________.听！有人在哭—Oh, it must be Mary.噢，一定是玛丽Someone must ____________ (be) here. But we have no idea who it was.刚才一定有人来过这里，但我们不知道是谁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等例如：—What’s this?这是什么？—It’s a new ________.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，主要用于指时间、距离、价值、天气、气候及温度等自然现象例如：It’s ______ late ______ go there now.现在去那儿已经太迟了。

It ________________________________.昨天下了一天的雨It can sometimes get very hot here. _______________________It is five ________ from the office to his home.从工作单位到他家有5英里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 the first (second) time + that-从句.“某人第几次干某事”(从句谓语用现在完成时)It’s +时间段+ since-从句.“自从……有一段时间了”It’s +时间段+ before-从句.“过多长的时间才……”It’s one’s turn to do sth.“轮到某人做某事了”It one’s duty to do sth.“做某事是某人的职责”英汉互译小练习——①快点吧。

到(我们)去上学的时间了②It’s high time that he went to help the old man.③这是我第一次打败汤姆我真高兴啊！④It is three years since I left my hometown. How time flies!⑤约翰，该你给我们唱歌了⑥It is our duty to make the environment better and better.⑦过不了多久他们就会互相了解的⑧It won’t be long before a new factory is built in our hometown.三、it作形式主语的用法1.基本用法当不定式、动名词、从句等复杂成分用作句子主语时，为保持句子平衡，通常把真正的主语放在句末，而在句首使用形式主语it例如：It’s very important to remember this.记住这一点很重要It’s hard work climbing mountains. ________是费劲的事It’s unknown when he will come.他什么时候来还____________。

2.用作形式主语的的重要句型(1) It + be + adj. for / of sb. to do sth.对某人来说，做某事怎么样It is hard for him to make up his m________.他很难下定决心It was foolish of her to say such a thing. ________________________，真是太蠢了说明】介词of与for的区别是：of前的形容词用于指某人的性格、品质等，如wise, foolish, patient, polite, rude, kind；for前的形容词用于指事情做起来怎么样，如easy, hard, difficult, possible, impossible, important, necessary, unnecessary2) It takes sb. +时间段+ to do sth.某人做某事花了……时间It takes years to master a new language.要花多年的时间才能________一门新的语言说明】此句型可以有以下多变种变体：It took me an hour to write the letter. =The letter took me an hour (to write). =I took an hour to write the letter.我写这封信花了一个小时。

3) It is up to sb. to do sth.该由某人做某事It’s up to you to make the ________.得由你来作选择4) it looks / seems / appears / happens that (as if / though)…似乎……It seemed as though he didn’t recognize me.他________没认出我来It happened that I was out when he called.他打时我________不在家5) If it were not for… / If it hadn’t been for…若不是因为……If it were not for their help, we couldn’t have got over the difficulties.要不是他们帮助，这些困难我们不了的四、it用作形式宾语的用法1.基本用法当不定式、动名词、从句等复杂成分用作宾语且其后跟有宾语补足语时，通常会在宾语补足语前使用形式宾语，而将真正的宾语移至句末其基本结构为“动词+it+宾语补足语+不定式(动名词或从句)”。

例如：I find it difficult to do the job ________.我发现做好这件事不容易I think it best that you should ____________.我认为你最好住这儿We think it no use complaining.我们认为________是没有用的2.用作形式宾语的几个特殊结构(1)动词+ it + that-从句例如：I like it that you came.你来了，我很高兴I take it (that) he will come ____________.我认为他会准时来的You can put it that it was arranged before.你可以说这是以前________的说明】能用于此结构的动词不多，常见的有have, take, put, like等2)动词+ it + when / if-从句例如：I dislike it when you whistle.我不爱听你吹________We really appreciate it when she offered to help.她来帮忙了，我们十分________。

I’d prefer it if I didn’t have to do so ________ work.要是我不必做那么多工作，好就太好了说明】能用于此结构的动词不多，常见的有enjoy, hate, love, like, dislike, appreciate, prefer等3)动词+prep. + it + that-从句例如：See to it that you’re not late again.注意千万不要再________Look to it that this doesn’t ________ again.注意不要再发生这种事You may rely on it that he’ll come to meet you.你放心，他会来________的I can’t answer for it that he will come.我不能保证__________说明】能用于此结构的动词不多，常见的有see to, look to, insist on, stick to, depend on, answer for等4)动词+ it +介词短语+ that-从句例如：I owe it to you that I am still ________.多亏有你我才仍然活着。

I took it for granted that he ________ (will) help us.我认为他会帮助我们的说明】能用于此结构的动词不多，常见的有take it for granted, bring it to one’s attention, owe it to sb.等五、it在强调句中的用法强调句的基本结构是：It + be +被强调部分+ that / who +其他部分例如：It was yesterday that he got __________.他是在昨天结婚的It was a computer that he bought last mo。