1、 什么是定語從句呢？什么是定語從句呢？修飾前面某一名詞或代詞的從句修飾前面某一名詞或代詞的從句叫定語從句。叫定語從句。結構：結構： 先行詞先行詞 + 關系詞關系詞 + 句子句子 The man who lives next to us is a policeman.先行詞先行詞_ 關系詞關系詞_ 定語從句定語從句關系詞關系詞關系代詞關系代詞: that, which, who, whom, whose關系副詞關系副詞: when, where, why先行詞是人先行詞是人 (n.) + who /that+ 從句從句 先行詞是物先行詞是物 (n.) + that / which+ 從句從句 I

2、 have an apple.An apple is red.I have an apple that is red.修飾先行詞修飾先行詞 an apple 主語主語主語主語關系詞關系詞that在定語從句中作主語時不能省掉。在定語從句中作主語時不能省掉。I like some friends. Some friends like sports.I like some friendswho/that like sports. 修飾先行詞修飾先行詞 friends 主語主語主語主語關系詞關系詞who /that 在定語從句中作主語時不能省掉。在定語從句中作主語時不能省掉。I like the mu

3、sic.I can dance to the music.I like the music that/which I can dance to .賓語賓語賓語賓語關系詞在定語從句中作賓語時可以省掉。關系詞在定語從句中作賓語時可以省掉。I like the girl.You are talking to the girl. I like the girl who(m) you are talking to .賓語賓語賓語賓語/that關系詞關系詞who /that在定語從句中作賓語時可以省掉。在定語從句中作賓語時可以省掉。小結：小結： which指指_，作主語，不能省略；，作主語，不能省略； 作

4、賓語，可以省略作賓語，可以省略. who 指指_，作主語，不能省略；，作主語，不能省略； 作賓語，可以省略作賓語，可以省略,（常用（常用whom）that 可指可指_，作主語，不能省略；，作主語，不能省略； 作賓語，可以省略。作賓語，可以省略。物人人或物關系代詞關系代詞who / that的作用：的作用： a. 做代詞，代替先行詞做代詞，代替先行詞 b. 在從句中擔任句子成分：主語或賓語在從句中擔任句子成分：主語或賓語 c. 做連詞，把主句和從句連接起來做連詞，把主句和從句連接起來注意注意1. who 和 whom The lady who/that is talking to my teac

5、her is my mother. The lady who/whom/that my teacher is talking to is my mother. 先行詞先行詞在從句中做在從句中做主語主語，用，用who/that 先行詞先行詞在從句中做在從句中做賓語賓語，用，用who/whom/that who是主格，是主格，whom是賓格是賓格 注意注意2. 什么時候可以省略關系代詞什么時候可以省略關系代詞The girl who/whom is singing an English song is Toms sister. Mr. Liu is the person (who/whom/tha

6、t) you talked about often.總結：總結：先行詞在從句中先行詞在從句中做賓語做賓語，可以省略可以省略關系代詞；關系代詞； 先行詞在從句中先行詞在從句中做主語做主語，不可以省略不可以省略關系代詞。關系代詞。練習：判斷Who/that 在從句中擔任主語還是賓語。3. whose 作定語作定語,表示所屬關系。表示所屬關系。 The boy is my classmate. The boys father is a policeman.The boy whose father is a policeman is my classmate.Have you seen a book

7、_ cover is read?A. that B. which C. whose D. what 定語從句幾點注意：（一）關系代詞作主語時，從句的謂語動詞的數由先行詞決定。arelikes 只能用只能用that的幾種情況的幾種情況1. This is the first play that I have seen since I came here.2. Everything that we saw in this film was true.3. Who is the girl that is standing under the tree? 4. Ive never heard of t

8、he people and things that you talked about just now.請自己總結哪四種情況只能用請自己總結哪四種情況只能用that 不能用不能用that的情況的情況 1) The girl who/that is standing there is my sister. The boy, who is very tall, is my cousin. 在在含有逗號含有逗號的非限制性定語從句中，不能用的非限制性定語從句中，不能用that5. 不能用不能用that的情況的情況 2) The woman who/whom/that my teacher is tal

9、king to is my mother. = The woman to whom my teacher is talking is my mother.若將定語從句末尾的介詞提到關系代詞前，只能用若將定語從句末尾的介詞提到關系代詞前，只能用which/whom,構成：構成：介詞介詞+whom / 介詞介詞+which 思考：思考：The children who/whom/that the nurse takes care of are healthy. 這個定語從句末尾的介詞這個定語從句末尾的介詞of不能提前，為什么？不能提前，為什么？用用who/that/which/whom 填空。填空

10、。1.I have a brother _ likes soccer.2.Tom doesnt like movies _are too long and too scary.3. We prefer bands _ play loud and energetic songs.4. He likes friends _ often help each other.who/thatwhich/thatwhich/thatwho/that用用who/that/which/whom 填空。填空。5.I havent watched the movie _ my friends are talking

11、 about.6. The woman _ my father is talking to is my English teacher. 7.The teacher is angry with the boy _ made a big mistake. 8. Those are the singers _ we met at the party. which/that/省略省略who/whom/thatwho/thatwho/whom/that/省略省略用用who/that/which/whom 填空。填空。9.I cant forget the people and the place _

12、we visited last month.10. Who is the doctor _ will give us a talk? . 11. Which is the book _ you want to buy? 12. Im the only person _ can do this job right. 13. It is the most delicious _ I have ever had. 14. Is there anything _ I can do for you?15. You are the first person _tells me the truth. tha

13、t/省略省略thatthatthatthat/省略省略thatthat下列情況只能用下列情況只能用that1.1.序數詞序數詞, ,形容詞最高級形容詞最高級, the only, , the only, the very ,the last the very ,the last 修飾先行詞時。修飾先行詞時。 eg. You are the very person that can do it right.2. 當先行詞是指物的當先行詞是指物的anything, something, nothing, none, everything, 等不定代詞時。等不定代詞時。 3.當先行詞同時包括人或物時

14、。當先行詞同時包括人或物時。 eg. We often talk about the people and the things that we are interested in. 我們常常談論我們感興趣的人或事。我們常常談論我們感興趣的人或事。4.當主句是當主句是who或或which引導的問句時。引導的問句時。 eg. Who is the girl that has black long hair? eg .Which is the pen that you bought?不能用不能用that, 也不能省略關系詞的情況也不能省略關系詞的情況1. 非限制性定語從句非限制性定語從句The b

15、lue team, which is at the top of the league, isnt playing well today. （非限制性（非限制性定語從句）定語從句） Football is a game which I love best.(限制性限制性定語從句）定語從句）2. 關系詞跟在介詞后時關系詞跟在介詞后時This is the classmate from whom I have learnet a lot. This is the room in which we live. 1. I have a friend _ likes listening to class

16、ical music.who/thatwhich/thatwhose3. The man _ leg broke in a match used to be a football player.2. Yesterday Emily was wearing the new dress _ I gave her.4. My parents live in a house_ is more than 100 years old.5. The boy with _ John spoke is my brother.which/thatwhom6. Kevin is reading a book _ is too difficult for him.which/that7. Is there anything _ you want to bu