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1、2023中考英语复习之代词i t用法归纳i.指除人以外的一切生物和事物。I bought a book the other day,but Ive lost it today.我那天买了一本书，但今天把它丢了。-What is that noise?-It is a cat.“那闹声是什么？“那是一只猫。”特别提醒：i t也可用于代指婴儿或不见对方的情况。例如:The baby smiled when it saw its mum.小孩见到妈妈就笑了。-Who is it?-Ifs me.“是 谁？”“是我。”2.指时间、距离和自然现象。It is ten past ten.十点十分了 O-H
2、ow far is it to the bus station?-Its three miles.“离车站有多远？”“有三英里远。”It did not rain much last summer.去年夏天雨下得不多。3.作 形 式 主 语。当主语是动词不定式、动名词或从句时，为了平衡句子，避免头重脚轻，往往把主语放在谓语动词之后，而 用i t作形式主语放在句 首。例如：It is very important for us to learn English well.学好英语对我们来说很重要。It is no good laughing at the people in trouble.嘲笑
3、处于困境的人不好。It was too bad that you couldnt come.你不能来真是遗憾。4.作 形 式 宾 语。当复合宾语中的宾语是动词不定式、动名词或从句时，往往把宾语放在它的补足语的后面，而 用i t作形式宾语放在谓语动词和补足语之间。例如：I make it a rule to take a walk in the morning.我自己规定在清晨散步。I think it no use talking.我认为光说没用。The teacher found it very useful that we should read morepassages.老师感到我们多读
4、文章很有用。5.用于固定句型中。It takes(sb.)some time to do s t h.(某 人)花 费.时间做某事。此句型经常与另一句型互相改写：Sb.spends some time(in)doing sth.o 例如：It often takes me about two hours to search the Internet everyevening.=I often spend about two hours(in)searching the Internet.每天晚上我常花大约两个小时上网查询。Ifs time for sth./Ifs time(for sb.)t
5、o do sth.“到的时候了”，“是(某 人)该 干 的时间了。例如:Its time for lunch.该吃午饭了。Ifs time for us to do morning exercises.我们该做早操了。It is/has been+一 段 时 间+since+一般过去时的句子，表示“自从以来已有时 间 了 例 如：It is/has been ten years since he left his hometown.=He has been away from his hometown for ten years.他离开家乡已经十年了。It is ones turn to do
6、 sth.“轮到某人做某事了”。例如:It is her turn to read the text.轮到她读课文了。It seems that”看起来好像.例如：It seemed that he was very angry.（也可说 He seemed to be very angry.）看起来他好像很生气。6.用在强调结构中。当我们要强调句子的某一部分（通常总是主语、宾语或状语）时，常用“Itis/was+被强调部分+who/that”结构。被强调部分指人时须用who,其它情况用that o假如原来的句子为：They held a sports meeting on the playg
7、round last week.上周它们在操场上举行了运动会。我们可以用下面四个强调结构来分别强调句中的主语、宾语和两个状语：It was they who held a sports meeting on the playground lastweek.（强调主语they）It was a sports meeting that they held on the playground lastw ee k.（强调宾语 a sports meeting）It was on the playground that they held a sports meeting lastw ee k.（强调地点状语 on the playground）It was last week that they held a sports meeting on theplayground.（强调时间状语 last week）再如：就是那个戴太阳镜的男孩。It is the boy who is wearing sunglasses.