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高考英语必背句型:特殊疑问句

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  It强调句型
  强调句的基本构成:It is/was + 被强调的部分 + who(主要指人时)/that + 其余部分
  [注意1]
  这种结构可以强调句子的主语、宾语、状语(包括时间,地点,方式,原因等),但是不能强调谓语动词(参考句型15)。
  原句的谓语动词如果是现在或将来时态,用It is…that/who….;
  原句的谓语动词如果是过去时态,用It was…that/who….;
  强调时间、地点、原因或方式时不要用when, where或how, 必须用that。
  [例句1]
  I saw him in the street yesterday afternoon.
  →It was I who saw him in the street yesterday afternoon.(强调主语)
  →It was in the street that I saw him yesterday afternoon.(强调地点状语)
  →It was yesterday afternoon that I saw him in the street.(强调时间状语)
  →It was him that/who I saw in the street yesterday afternoon.(强调宾语)
  [例句2]
  He didn’t go to bed until his mother came back.
  →It was not until his mother came back that he went to bed.
  He didn’t do his homework until his father came back from work.
  →It wasn’t until his father came back from work that he did his homework.
  [例句3]
  Only when you nearly lose someone do you fully realize how much you value him.
  →It is only when you nearly lose someone that you fully realize how much you value him.
  只有你快要失去某个人时,你才意识到你是多么尊重他。
  [例句4]
  I was late again because the traffic was very heavy during the rush hour.
  →It was because the traffic was very heavy during the rush hour that I was late again.
  (强调句中只能强调由because引导的原因状语从句,because不能换成since, as, for, now that等)
  [注意2]强调句的疑问结构
  一般疑问句 Is / Was it +被强调部分 +who / that …?
  特殊疑问句 特殊疑问词+is /was +it +who / that…?
  What is/was it that…? Who is/was it that…? When is/was it that…?
  Where is/was it that…? Why is/was it that…? How is/was it that…?
  [例句1]
  I saw him in the street yesterday afternoon.
  →When was it that you saw him in the street?
  →Who was it that you saw in the street yesterday afternoon?
  →Where was it that you saw him yesterday afternoon?
  [例句2]
  I don’t know when he will come back.
  →I don’t know when it is that he will come back.(宾语从句疑问词后用陈述句语序)
  –How was it that you got in touch with Mr. Smith? 你是怎么和Smith先生联系上的?
  –Trough a friend of mine. 通过一个朋友。

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