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高中英语语法与词汇《Listening and reading》精品PPT课件优质课下载
“一种结构”
“两种be和两个一致”
“三个连接词
和三类强调成分”
“四种句式变化”
“五类复杂化结构”
一、“一种结构” 强调句型的基本结构特征为：
It + be + 被强调成分 + that / who + 其他成分
被强调的成分可以是主语、宾语和状语,但不能是谓语.
e.g. He met an old friend in the park yesterday.
It was he who/that met an old friend in the park yesterday.
It was an old friend that/who he met in the park yesterday.
It was in the park that he met an old friend yesterday.
It was yesterday that he met an old friend in he park.
强调主语
强调宾语
强调地点状语
强调时间状语
1. “两种be” ：is, was
两种“be”的选择要视原句谓语动词的时态而定
1. It _____ Mike and Mary who helped the old man several days ago .
A. was B. is C. were D. had been
二、“两种be和两个一致”
_______
A