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成人高考英语:快速掌握it的7种用法!

2019-1-5  来源:本站 点击:

       1.指除人以外的生物和事物,无性别之分。如:
  .
  ---Have you seen my watch?
  .
  ---你看见我的表了吗?
  .
  ---Yes, it is on the table.
  .
  ---看见了,在桌子上。
  .
  here is a dog outside. It is a yellow one.
  .
  门外有一只狗,是黄色的。
  .
  The earth is shaped like a big ball. And we all live on it.
  .
  地球的形状像一个大球。我们都住在上面。
  .
  注:也可指婴儿或指说话时不需言明性别的时候。678招生考试网举例如下:
  .
  Would you please take care of the baby? It is crying.
  .
  请你照顾一下婴儿,好吗?它在哭。
  .
  ---Who is walking there?
  .
  谁在那儿走动?
  .
  ---It is a policeman
  .
  是个警察。
  .
  ---Who is knocking at the do
  .
  谁在敲门?
  .
  It's me.
  .
  是我。
  .
  2.起指示代词的作用(=this/that),指一个事物或前面谈过的事物或情况。如
  .
  I had a talk with the boss. It is very helpful
  .
  我和老板谈了话。对我帮助很大。
  .
  He said he knew smoking is harmful for his health, but he wouldn't give it up.
  .
  他说他知道吸烟对身体有害,但他不会戒烟。
  .
  Let me tell you the whole story. It happened two days ago.
  .
  让我来告诉你事情的整个经过。事情发生在两天前。
  .
  3.指时间、日期、季节等,在句中作主语。如:
  .
  ---What time is it now?
  .
  现在几点?
  .
  ---It is five o'clock.
  .
  五点钟。
  .
  -What's the date today?
  .
  今天几号?
  .
  ---It's April the first.
  .
  四月一日。
  .
  ---What day is today?
  .
  今天星期几?
  .
  ---It's Friday.
  .
  星期五。
  .
  ---It is early summer now.
  .
  现在是初夏。
  .
  4.指自然现象、天气、距离等,在句中作主语。678招生考试信息网举例如下:
  .
  It's raining again.
  .
  又下兩了。
  .
  It is rather cold today.
  .
  今天很冷。
  .
  I hope it will be fine tomorrow.
  .
  我希望明天天气好。
  .
  The store is near here. It's only a five minutes' walk.
  .
  商店离这儿很近。步行只需五分钟。
  .
  Is it a long way to the Summer Palace?
  .
  到颐和园很远吗?
  .
  5.作形式主语
  .
  当主语是动词不定式、动名词或主语从句时,往往把主语放在谓语动词后面,而把it让放句首作形式主语代替真正的主语。678招生信息网举例如下:
  .
  It is important to study English.
  .
  学英语很重要。
  .
  It is no use crying now.
  .
  现在哭是没有用的。
  .
  It is necessary for us to read more books.
  .
  我们有必要多读书。
  .
  It is clear that you are wrong.
  .
  很清楚你错了。
  .
  6.作形式宾语
  .
  当复合宾语中的宾语是动词不定式、动名词或宾语从句时,往往把宾语放在补足语后面,而把i放在谓语动词和宾语补足语中间,代替不定式、动名词或宾语从句作形式宾语。如:
  .
  He thinks it his duty to help the sick.
  .
  他认为帮助病人是他的职责。
  .
  I think it no use talking to him about it.
  .
  我认为和他谈论这个事没有用。
  .
  7.用在强调结构中
  .
  为了强调句子的某一成分(通常是主语、宾语或状语),常用“it is(was)+被强调成分+that(或who)…”强调结构。注:强调结构只能用that和who;强调人或物时可用that,who只用来强调人。如:
  .
  It was the headmaster who opened the door.
  .
  是校长开的门。
  .
  It was I who helped you over the difficulties.
  .
  是我帮助你克服的困难。
  .
  It was a spelling mistake that I made in the test.
  .
  我在考试中犯的错误是一个拼写错误。
  .
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