Question

高中英语定语从句问题。急！

在定语从句中，什么情况只用That，什么情况不用That？

Answer 1

只用that：
先找先行词，1，先行词是不定代词，
2，或者先行词被不定代词修饰，
3，被序数词修饰，
4，被最高级修饰，
5， 被the only/the same/the very等修饰，
6， 或者先行词又有人，又有物 只能用that
只能用which： 1，前有介词只能用which， 2， 非限制性定语从句(有逗号)只能用which。

Answer 2

有定语从句的句子往往可以分作两句句子，如，

This is the book that I like.
可分为：
This is the book. I like the book.
再如，
I like the book that is interesting.
可分为:
I like the book. The book is intesting.

定语从句用that 代替了后面那句的book. 如果，book 在后句中是宾语，that 就可以省略。
如，This is the book I like.
其他句子可以类推。再如，This the movie I saw yesterday. (This is the movie. I saw the movie yesterday.)

Answer 3

代表物体用that（不论主语或宾语)
太郁闷了，表达不出来了。例如：
That is my book (that) I bought yesterday.物的，也可以用which,而且，that作宾语时，可以省略。

I admire him who works hard.

Those books that/which can give you power are bought by me.

哎，高中毕业好几年，语法都不太熟练 了

Good luck!

Answer 4

在指人或物；在从句中作主语、宾语、表语用that
that不能引导非限制性定语从句