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一、表语从句
1.定义：用作表语的从句叫做表语从句。
2.构成：关联词+简单句
3.引导表语从句的关联词的种类：
(1)从属连词that。如：
The trouble is that I have lost his address. 麻烦是我把他的地址丢了。
(2)从属连词whether, as, as if。如：
He looked just as he had looked ten years before. 他看起来还与十年前一样。
1.定义：用作表语的从句叫做表语从句。
2.构成：关联词+简单句
3.引导表语从句的关联词的种类：
(1)从属连词that。如：
The trouble is that I have lost his address. 麻烦是我把他的地址丢了。
(2)从属连词whether, as, as if。如：
He looked just as he had looked ten years before. 他看起来还与十年前一样。
