Question

that在句中可以作什么成分？

Answer 1

that主要可以引导五类从句。

1. that 可以引导宾语从句。当从句不缺成分，结构和语义都完整时，可用that引导，且that通常省略。

如: He thinks (that) he can finish the task. 他认为他能完成任务。

2. that可以老咐引导主语从句，同样要求从句语义和结构完整that 不可省略。

如: That she came to school yesterday is a surprise to me. 她昨天去学校了，让我感到吃惊。

3. that 引导表语从句，要侍型纯求从句语义和结构完整，that不能省略。

如: The task is that you should finish your homework today. 任务是你今天得完成家庭作业。

4. that引导同位语从句，不能省略。

如: The news that he was in hospital worried us. 他住院的消息使我们担忧。

5. that引导定语从句，先行词可以是人或者物。

如:The cat that is sleeping on the grass is my cat. 那租樱只在草地上睡觉的猫咪是我家的。