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(一)定语从句复习

用定语从句把下列句子连接成一个句子

1. The book is mine. He is reading the book.

The book (which/that) he is reading is mine.

2. I like the girl. The girl is wearing a red skirt.

I like the girl who is wearing a red skirt.

3. She is the student. We saw her yesterday.

She is the student (who/whom/that) we saw yesterday.

4. The athlete is a famous runner. You talked to him.

The athlete who you talked to is a famous runner.

5. I have lost the book. He gave me it yesterday.

I have lost the book (which/that) he gave me yesterday.

6. I have seen the film. You talked it about last night.

I have seen the film (which/that) you talked about last night.

7. I threw the chair. Its legs are broken.

I threw the chair whose legs are broken.

(二)介词+关系代词引导的定语从句

用定语从句把下列句子连接成一个句子

1. This is the teacher. We’ve learned a lot from her.

This is the teacher (whom/who/that) we’ve learned a lot from.

This is the teacher from whom we’ve learned a lot.

2. The policeman is a friend of mine. Mr Henry is talking with him in the office.

The policeman (who/that/whom) Mr Henry is talking with in the office is a friend of mine.

The policeman with whom Mr Henry is talking in the office is a friend of mine.

3. The ladder began to slip. I was standing on the ladder.

The ladder (which/that) I was standing on began to slip.

The ladder on which I was standing began to slip.

4. Great changes are taking place in the city. They live in the city.

Great changes are taking place in the city (which/that) they live in.

Great changes are taking place in the city in which they live.

5. This is the library. I borrowed Harry Potter from this library.

This is the library (which/that) I borrowed Harry Potter from.

This is the library from which I borrowed Harry Potter.

总结：关系代词在从句中作宾语时，介词可提至关系代词前，构成“介词+which/whom从句”结构。注意：

(1)介词提前时，关系代词不可省略;

(2)介词提前时，只能用“介词+which”(指事物)以及“介词+whom”(指人)结构，此时不能用that或who。

(3)当关系代词作look after, look for, take care of等不能拆开使用的短语动词的宾语时，介词不能提前。

eg. 这是我们进行了很多讨论的问题。

This is the question about which we’ve had so much discussion.

我跟他说话的那个人是个老师。

The man to whom I spoke is a teacher.