主语从句:What we need now is time.我们现在需要的是时间。 宾语从句:He suggested that the law should be changed.他建议那条法律条文应该修改。 表语从句:The problem is whether he will come.问题是他会不会来。 同位语从句:The fact that he was ill worried his parents .他生病的事实让父母很担心。
What he said is important.他说的话很重要。(主从) This is What he said .这就是他所说的。(表从) I believe What he said .我相信他说的话。(宾从) I don't believe the fact he should do such a stupid thing.我不相信他居然会干出这种蠢事这个事实。(同位语从句)