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《Grammar》精品PPT课件优质课下载
主语
谓语
用do/does/did强调谓语动词
Do be careful while crossing the street.
The scientist did devote all his life to his research work.
Is/was it ＋被强调部分＋that/who＋句子其他成分。(一般疑问句）
It was in 1939 that the Second World War broke out.
Was it in 1939 that the Second World War broke out.
特殊疑问词 (when, what, who…)＋is/was＋it＋that＋其他成分。（特殊疑问句）
When was it that you called me yesterday?
It is/was not until...＋that＋句子其他成分。
I did not realize she was a famous film star until she took off her dark glasses.
It was not until she took off her dark glasses that I realized she was a famous film star.
判断强调句型的方法：
如果把句中的It is/was和that/who去掉后，句子意思依然完整，那么这个句子就是强调句；否则就不是。
Was it in 1939 that the Second World War broke out？
When was it that you called me yesterday?
Exercise
1、What was it ______ caused the party to be put off?
2、I do not know what ______ was that he said at the meeting.
3、It was 80 years before Christopher Columbus crossed the Atlantic ______ Zheng He had sailed to East Africa.
that
that
It
(2016·天津高考) You are waiting at a wrong place. It is at the hotel ________ the coach picks up tourists.