英语语法 表语从句·主语从句·宾语从句·同位语从句·

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 Ihave 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。The question is whether they will be able to help us 问题是他们是否能帮我们。注：从属连词if一般不用来引导表..