That he finished writing the composition in such a short time surprised us all. Who will be our monitor hasn't been decided yet.麻烦哪位高手划分下 这个主语从句的主句和从句。我每次看到主语从句跟定语从句区分不开,有什么窍门可以区分吗?
主语从句的特点有二:
1. 谓语动词前有一个由连接词(that、wh- 式或whether/if)引导的完整的句子。如:
第一句That he finished writing the composition in such a short time surprised us all的谓语动词surprised 前有that 引导的从句he finished writing the composition in such a short time
第二句. Who will be our monitor hasn't been decided yet 的谓语动词hasn't been decided前有 who 引导的Who will be our monitor
2. 可以用先行主语 it代替主语的位置,把主语从句放在句子后面,如上面两句可以改写如下:
第一句:(It) surprised us all (that he finished writing the composition in such a short time).
第二句:(It) hasn't been decided yet (who will be our monitor).
这两个句子的具体结构如下:
第一句——
主语从句:That he finished writing the composition in such a short time
【连接词】that
【主语】he
【谓语动词】 finished
【宾语】writing the composition
【状语】in such a short time
谓语动词:surprised
宾语:us
同位语:all
第二句——
主语从句:who will be our monitor
【连接词兼主语】who
【系动词】will be
【表语】our monitor
谓语动词:hasn't been decided
状语:yet