一、强调句的概念
为表达自己的意愿和感受而使用的一种形式。
二、强调句的结构
It + is/ was + 被强调部分 + that / who + 句子剩余部分（强调除谓语动词外的任何成分）
1.强调结构能强调哪些成分
（1）主语
It was he that saw Mr. Wang on TV yesterday.
（2）宾语
It was Mr. Wang that he saw on TV yesterday.
（3）补语
It is green that he has painted the door.
（4）表语
It is a doctor that he has become.
（5）地点状语
It was on TV that he saw Mr. Wang yesterday.
（6）时间状语
It was yesterday that he saw Mr. Wang on TV.
（7）方式状语
It was by bike that we went to the park.
（8）各类从句
It was what he said that surprised me.
It was because the book was so useful for my work that I bought it.
（9）强调not…until..中的时间状语
It was not untill his father came back home that he went to bed.
原句：he didn’t go tobed until his father came back home.
（10）强调非谓语动词
It was playing computer games that cost the boy a lot of money.
2.强调结构的疑问式及其回答
（1）一般疑问句
Was it you who put these books on my desk? 原句：Did you put these books on my desk?
（2）特殊疑问句
Who was it that gave you the book? 原句：Who gave you the book?
（3）反意疑问句
It was Tom who broke the window, wasn’t it? 原句：Did Tom break the window, didn’t he?
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3. 强调结构的几个易错点
（1）关于结构中的that
除强调主语和宾语的人时可用who，其他任何情况都用that
It was Kate that / who told me about it.
（2）关于结构中be的形式
原句谓语动词是过去式时，强调句中的be 用was;
原句谓语动词是现在时或将来时，强调句中的be 用 is.
注：be有时与表示推测的情态动词连用
It must be John that / who cleand the room.
（3）关于主谓一致问题
被强调的是原句主语时，要注意that / who 后的谓语动词与原句主语一致。
It is I that / who am in trouble. It is you that / who are wrong.
（4）强调结构的省略句
Who is making so much loud noise in the garden?
It is the childen. 完整句：It is the childen that are making so much loud noise in the garden .
（5）如何强调否定句
要将not 一同强调，构成 it is / was not …that …
It is not he that / who studies French. 原句：He doesn’t study French.
（6）如何强调双宾语
无论强调哪个宾语，都必须根据动词的搭配关系，加上to或 for.
原句：He gave Mary a pen.
间接宾语：It was Mary that he gave a pen to.
直接宾语：It was a pen that he gave to Mary.
（7）强调结构作宾语时的语序
要与陈述句相同
I don't know where it is that he has gone.
（8）强调结构与类似句型的区别
判断是否是强调句结构的方法是：去掉It + is/ was … that / who 后，看剩余部分（经调整后的）是否依然是个完整的句子。
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