引导词的用法(二) • whether在表语从句中表 “是否” ,但不 充当句子的成分。if 不能 引导表语从 句.如: 1.What the doctor really doubts is whether my mother will recover from the serious disease soon. 2. The question is whether it is worth doing.
表语从句引导词注意事项
1. that引导表语从句时不能省. 2. if不能引导表语从句. 3.除that外的所有引导词都有自己 的意义。 4. 除that, whether外的所有引导 词都须在从句中充当相应的成 分
名词主语+be+that引起的表语从句
主语名词常常是 表示事实,真理的名词,如:fact, truth 表示看法,观点、麻烦的名词,如: idea, opinion, belief, view, news, advice, feeling, suggestion, plan, trouble, 1.The fact is that our team has won the game. 2.The truth is that she was the very person we are looking for.
结构是“主语+系动词+表语从 句”。
可以接表语从句的系动词有:
be,feel , seem , look , sound, taste , smell ,appear, remain , stay become ,get , grow , turn ,go , prove, turn out 等。
主语从句 ----形式主语