Grammar选修7Unit4Sharing.ppt

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1、人教课标选修人教课标选修7 Unit 4 Sharing定语从句定语从句 定语从句定语从句 定语从句（定语从句（Attributive Clauses）在句中做定）在句中做定语，修饰一个名词或代词，被修饰的语，修饰一个名词或代词，被修饰的名词名词,词组或代词组或代词词即即先行词先行词。定语从句通常出现在先行词之后，由。定语从句通常出现在先行词之后，由关系词（关系代词或关系副词）引出。关系词（关系代词或关系副词）引出。关系代词关系代词有：有：who, whom, whose, that, which等。等。关系副词关系副词有：有： when, where, why等。等。Join the fol

2、lowing sentences:A plane is a machine. The machine can fly.关系代词的实质关系代词的实质Join the following sentences:A plane is a machine. The machine can fly.A plane is can fly.关系代词的实质关系代词的实质a machine the machineJoin the following sentences:A plane is a machine. The machine can fly.A plane is can fly.关系代词的实质关系代词的

3、实质a machine that /which关系代词的实质关系代词的实质Join the following sentences:The girl is Mary. We saw her yesterday. 关系代词的实质关系代词的实质Join the following sentences:The girl is Mary. We saw her yesterday. we saw yesterday is Mary.herThe girl关系代词的实质关系代词的实质Join the following sentences:The girl is Mary. We saw her yes

4、terday. we saw yesterday is Mary.herThe girl关系代词的实质关系代词的实质Join the following sentences:The girl is Mary. We saw her yesterday. we saw yesterday is Mary.that/who/whomThe girl注意避免重复注意避免重复This is the detective who came from London.The book which I am reading is written by Tomas Hardy.The desk whose leg

5、 is broken is very old.This is the room that Shakespeare was born in. (1) 如果先行词是如果先行词是all, much, anything, something, nothing, everything, little, none等不定代词，关系等不定代词，关系代词一般只用代词一般只用that，不用，不用which。例如：。例如： All the people that are present burst into tears. (2) 先行词有两个，既有人也有物，要用先行词有两个，既有人也有物，要用that。 We we

6、re talking about the persons and things that we remembered in our school.关系代词关系代词that 和和which的区别的区别 1.1.宜用宜用thatthat引导的定语从句引导的定语从句(3) 如果先行词被形容词最高级以及如果先行词被形容词最高级以及first, last, any, only, few, mush, no, some, very等词修饰，关系代等词修饰，关系代词常用词常用that, 不用不用which, who，或，或whom。例如：。例如：This is the most impressive TV

7、theater that has never been put on show before .这是以前从未上演过的最有感染力的电视剧。这是以前从未上演过的最有感染力的电视剧。That is the only way that leads to your success .那是通向你成功的唯一之路。那是通向你成功的唯一之路。We have to consider the first thing that starts our work .我们必须要考虑启动我们工作的第一件事。我们必须要考虑启动我们工作的第一件事。 2. 2. 宜用宜用whichwhich引导的定语从句引导的定语从句当定语从句的

8、当定语从句的介词提前介词提前时，要用时，要用which。The house in which they lived last yearhas been rebuilt.引导引导非限制性定语从句非限制性定语从句时，要用时，要用which。He bought a railway ticket for the woman,which helped her a lot.as, which 非限定性定语从句非限定性定语从句 由由as, which 引导的非限定性定语从句，引导的非限定性定语从句，as和和which可可代整个主句，相当于代整个主句，相当于and this或或and that。As一般放一般

9、放在句首，在句首，which在句中。在句中。 As we know, smoking is harmful to ones health.The sun heats the earth, which is very important to us. Alice received an invitation from her boss, _came as a surprise.A. it B. that C. whichD. heIt rained hard yesterday, _ prevented me from going to the park.A. thatB. whichC. as

10、 D. itas 和和which在引导非限制性定语从句时，这两个关系在引导非限制性定语从句时，这两个关系代词都指主句所表达的整个意思，且在定语从句中都可代词都指主句所表达的整个意思，且在定语从句中都可以作主语和宾语。但不同之处主要有两点：以作主语和宾语。但不同之处主要有两点：(1) as 引导非限制性定语从句引导非限制性定语从句，可放在主句之前，或，可放在主句之前，或者主句之后，甚至可以切割一个主句；者主句之后，甚至可以切割一个主句；which引导的非引导的非限制性定语从句只能放在主句之后。另外，限制性定语从句只能放在主句之后。另外，as有有“正正如如，正像，正像”的意思的意思(2）as 代表

11、前面的整个主句并在从句中作主语时，代表前面的整个主句并在从句中作主语时，从句中的谓语必须是系动词从句中的谓语必须是系动词；若为行为动词，则从句中若为行为动词，则从句中的关系代词只能用的关系代词只能用which。判断关系代词与关系副词判断关系代词与关系副词 方法一：方法一： 用关系代词，还是关系副词用关系代词，还是关系副词完全取决于从句中的谓语动词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要求用关系代词；而不及物及物动词后面无宾语，就必须要求用关系代词；而不及物动词则要求用关系副词。例如：动词则要求用关系副词。例如： This is the mountain village wher

12、e I stayed last year.Ill never forget the days when I worked together with you. 判断改错判断改错1. This is the mountain village where I visited last year. 2. I will never forget the days when I spent in the countryside. 3. This is the mountain village (which) I visited last year. 4. Ill never forget the day

13、s (which) I spent in the countryside.FFTT方法二：方法二： 准确判断先行词在定语从句中的成分准确判断先行词在定语从句中的成分(主、谓、宾、主、谓、宾、定、状定、状)，也能正确选择出关系代词，也能正确选择出关系代词/关系副词。关系副词。1.Is this museum _ you visited a few days age?A. where B. that C. on which D. the one2. Is this the museum _ the exhibition was held.A. where B. that C. on whichD.

14、 the one例例1变为肯定句：变为肯定句： This museum is _ you visited a few days ago.例例2变为肯定句：变为肯定句：This is the museum _ the exhibition was held. 在句在句1中，所缺部分为宾语，而中，所缺部分为宾语，而where, that, on which都不能起到宾语的作用，只有都不能起到宾语的作用，只有the one既做了主句的表语，既做了主句的表语，又可做从句的宾语，可以省略关系代词，所以应选又可做从句的宾语，可以省略关系代词，所以应选D。 而句而句2中中, 主、谓、宾俱全，从句部分为句子的

15、状语表地主、谓、宾俱全，从句部分为句子的状语表地点，既可用副词点，既可用副词where，又因，又因 in the museum词组，可词组，可用介词用介词in + which 引导地点状语。而此题中，介词引导地点状语。而此题中，介词on 用的不对，所以选用的不对，所以选A。关系词的选择依据在从句中所做的成分，先行关系词的选择依据在从句中所做的成分，先行词在从句中做主、定、宾语时，选择关系代词词在从句中做主、定、宾语时，选择关系代词 (who, whom, that, which, whose)； 先行词在从句中做状语时，应选择关系副词先行词在从句中做状语时，应选择关系副词 ( where 地点

16、状语，地点状语，when 时间状语，时间状语，why 原因状语原因状语) 。 Exercises1.Mother bought me a dictionary on my birthday, _made me very happy.A. what B. that C. who D. which2. Look at the watch. Dont you see it is _ watch _ Helen lost the other day? A. as the same; as B. the same; as C. the same; which D. as the same ; that

17、3. _ is known to everybody, the moon travels round the earth once every month. A. It B. As C. That D. What 4. The weather turned out to be very good, _ was more than we could expect.A. what B. which C. that D. it5. After living in Paris for fifty years he returned to the small town, _ he grew up as

18、a child. A.which B. where C. that D. when 6. He made another wonderful discovery, _ of great importance to science.A. which I think is B. which I think it is C. which I think it D. I think which is7. The doctor advised Vera strongly that she should take a holiday, but _ didnt help. A. which B. it C.

19、 she D. he8. _ is reported in the newspaper, talks between the two countries are making progress. A. It B. As C. That D. What9.Is this the only reason _ at the meeting for his carelessness in his work?A. that he explained B. what he explainedC. why he explained D. which he explainedHomework Summarize the rules of attributive clause.