强调句型使用十要素(结合it的用法)
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一．讲练共两课时
强调句型使用十要素
It is/was +… who/that…
十要素分别举例说明：
1. 如强调句型指现在或未来的情况用It is指过去用It was。
e.g. It is I who/ that am wrong.
分析：被强调部分为人强调词可用who也可用that. 指现在的情况所以以 It is开头，被强调部分是 I谓语用 “am”
原句： I am wrong.
e.g. It was him who hat I saw the day before yesterday.
原句为 I saw him the day before yesterday.
分析：指过去的情况用It was 开头，被强调部分为人所以强调词仍是who hat.
2. 被强调部分往往为句子的主语、宾语、时间状语、地点状语等，但有时也可以强调比较复杂的内容。 如时间状语从句、地点状语从句、not until… 结构、not only…but also…和as well as…等结构。
e.g. It was only when I reread his poems recently that I began to appreciate their beauty. (appreciate means understand and enjoy the good qualities or value of something欣赏、鉴赏、领会)
分析：强调部分为复杂的时间状语从句强调词不能使用when只可用that
e.g.It is not only he but also his parents who hat have been to Beijing.
3. 被强调部分为人称代词时，原句用什么格强调句也用什么格。
如上述例句。
4. 关于强调词的选用，强调人时可用who 或that，如果不强调人一律用that。此时绝不能与定语从句混淆，被强调部分为时间状语、地点状语、或原因状语时不可误用when, where 或why。
e.g. It was in the street that I met him yesterday.
尽管被强调部分是地点状语，强调词不能使用where只可用that.
e.g. It was about 600 years ago that the first clock with a face and an hour hand was made.分析：指过去的情况用It was 开头，尽管被强调部分是时间状语，强调词不能使用when只可用that.
e.g. It was because he was ill that died at once
被强调部分为复杂的原因状语从句强调词不能使用why只可用that。
5. 被强调部分如果为主格人称代词，who hat后的动词和主格人称代词在人称和数上保持一致。 （如例一所示）
6. 强调句型的一般疑问句结构 IsWas it… who that…?
e.g. Was it during the Second World War that he died?
分析：以Was it 开头被强调部分是时间状语，强调词用that。
7. 强调句型的特殊疑问句结构
特殊疑问词+iswas it… who that…?
强调句型的特殊疑问句是就特殊疑问词强调
Where was it that you found your lost pen?
原句：Where did you found your lost pen?
8．强调句型It is was…who/ that中iswas前面可用muchmaymight等表推测的情态动词修饰。
e.g. It might be in his room that he met her.
注意：如改成特殊疑问句由于may,must表推测的情态动词只用于肯定句，所以否定句，疑问句might 应改成could.
e.g. Where could it be that he met her?
9. 强调部分为时间状语和地点状语时有可能先接定语从句再接强调句型
e.g. It was on October 1st,1949 when he joined the Party that he was killed.
e.g. It was in the room where he had studied for three years that he hound his lost pen.
10. 判断强调句型的使用是否正确的方法是将强调部分去掉如去掉强调句型结构后句子仍正确，强调句型就正确。
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