接下来我跟大家说下主语从句中引导词that 和 what的用法吧。
- What he wants is a book.
- That he wants to go there is obvious.
- What happened is not clear.
- This is the best TV that is made in China. 定语从句
- The first museumthat he visited in China was the History Museum. 定语从句
that 和what 的选用：that 和 what 都可引导主语从句。但是，what除起连接作用外，还在主语从句中充当成分，可做从句的主语、宾语、或表语。而that在主语从句中不充当任何成分，只起连接作用。
- Itis well reportedthat a storm is coming.
- Itis true thatthe earth moves around the sun.
- Itis a pity that I missed the train.
- Itdoesn’t matter whetherhe will come or not.
- Itseems thatit is going to rain.
- Ithappened thatthey didn’t know my address.