What the police want to know is when you entered the room.

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/07/14 00:18:48

What the police want to know is when you entered the room.
请哪位老师帮我分析下这个句子的结构,前面为什么用what,省略可否.

What the police want to know 部分为主语从句,由what来引起,what在从句中know的宾语,不能省略.
is 主句的谓语
when you entered the room. 表语从句,作主句的表语.
再问： is 主句的谓语 when you entered the room. 表语从句，作主句的表语。这个明白，主要是前面what引导的句子不明白怎么会是个主语从句。what引导的从句是什么？
再答： what 引导的是一个主语从句，作主句的主语。也就是说what从句作谓语动词is的主语。
再问：译文：主句：什么是警察想知道的表语从语：（警察想知道的）是你什么时候进的房间。按你说的这个句子拆开来译就是这样吧？
再答：非常正确！
再问：似乎有点明白了，非常感谢。我可能写不出这样的表语从句，大多数会用个宾语从句代替了。
再答：多练练就会了，熟能生巧嘛！相信自己能！

What the police want to know is when you entered the room. when do you suppose ____ the burglar entered the room 请问,I want to know what is the question.I want to know what t you want to know what film is being shwon at the Roxy Cinema The only thing I want to know is what are you thinking about You want to know what film is being shown at the Roxy Cinema I want to know.What is the matter with you?(改为宾语从句） When we entered the room,the ( ) at the desk rose to greet u "Uncle when you want to get up?”what the hell Do you know what _____when the police came yesterday I want to know the someone who is you miss This is the news you want to know