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选择性必修二《Unit 1 Science and Scientists》Discovering useful structures优秀ppt课件
Period 3 Discovering useful structures
The Predicative Clauses
Unit 1 Science and Scientists
Grammar focus:
The question is who will do it.
定义：表语从句放在 之后，充当复合句中的 。
结构:
It seems that it is going to rain.
It looks as if he is unhappy today.
主语+系动词 +
引导词 +
简单句
系动词
表语
Underline all the examples in the reading passage where noun clauses are used as the predicative. Then state their meaning and functions.
1.One theory was that _____________________________________
2. Another was______________________________________
3. The truth was__________________________________
that cholera was caused by an infection from germs in food or water.