一、that引导的主语从句
1. That she passed the exam is surprising.(她通过了考试,真令人惊讶)
2. That the meeting started on time is a relief.(会议准时开始,真是松了一口气)
3. That he finished his homework without help is impressive.(他独立完成作业,令人印象深刻)
二、whether引导的主语从句
1. Whether it will rain tomorrow is uncertain.(明天是否会下雨还不确定)
2. Whether we should postpone the project is still debated.(是否推迟项目仍需讨论)
3. Whether she will call you is a question.(她会不会给你打电话还是个问题)
三、what引导的主语从句
1. What we need is patience.(我们需要的是耐心)
2. What the movie taught me was valuable.(电影教给我的东西很有价值)
3. What he said surprised everyone.(他说的话让所有人都感到惊讶)
四、特殊结构主语从句
1. It is important that he study harder.(他更努力学习很重要)
2. It is necessary for us to protect the environment.(我们有必要保护环境)
3. It seems that he will be late.(看来他会迟到)
注意事项
主语从句需用陈述语序,如:
*What he did* (主语) + *is/are* (系动词) + *interesting* (表语)
引导词需根据句意选择:
*that* 引导无争议事实(如:That the sky is blue)
*whether* 引导需用虚拟语气(如:Whether we call you)
*what* 引导缺少成分的从句(如:What the problem is)
通过这些例句,可以逐步掌握主语从句的用法和结构。