the book is helpful that...that是表语从句？The good news is that we have passed the exam.也是表语？

来源：百度知道编辑：UC知道时间：2024/06/01 05:55:00

第一个句中的that从句做book的定语，因此属于定语从句，表语为helpful?? that不是跟在helpful后面么？所以helpful是先行词that是修饰helpful啊？

判断一个句子属于哪种从句，要看该从句在句中充当什么句子成分。表语就是连系动词（be动词、seem、turn、look、smell等之后跟名词或动名词的一系列动词，在句中不能独立作谓语）之后，与连系动词一起构成谓语的句子成分。第一个句中的that从句做book的定语，因此属于定语从句，表语为helpful；第二个句子中的that从句就是表语从句，做系动词is的表语，与之一起构成谓语部分。

第一个不是表语从句是定语从句，第二个就是表语从句了，表语从句就是that放在be动词后面

The book is worth _____ the book is a hit the pen is beside the book.对不对？ the english book is on the shelf the book on the desk is mine I like the book which is instering Her math book is ___ the sofa? The book.the cover _______ is broken,is not mine. the book is nowhere to find.还是the book is nowhere to be found The book proves to be good为什么不是被动?The book is proven to be good?