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1、11） 关系代词在非限定性定语从句中代替主句中某一个名词或词组，并对该名词或词组进关系代词在非限定性定语从句中代替主句中某一个名词或词组，并对该名词或词组进 行补充或说明时，只能用行补充或说明时，只能用 which.The book, which I bought yesterday, is very interesting.Last night, I saw a film, which was about Long March. 2)关系词在非限定性定语从句中代表主句中谓语部分的整个概念的只能用关系词在非限定性定语从句中代表主句中谓语部分的整个概念的只能用 which.He can writ
2、e a letter in English, which I can not.I asked him to lend me his bike, which he did. 3) 关系词在非限制性定从中代表主句所表达的整个内容，并当关系词等于关系词在非限制性定从中代表主句所表达的整个内容，并当关系词等于 and this 时，时， 只能用只能用 which. The stems of bamboo are hollow, which makes them very light. It was raining hard, which kept us indoors. 4) 关系词在非限制性定从中代
3、表主句所表达的整个内容关系词在非限制性定从中代表主句所表达的整个内容,并关系词等于并关系词等于 which fact 时，时， 只能用只能用 as This elephant is like a snake, as anybody can see. He came very early this morning, as was usual. 5) 关系代词所引导的非限定性定从放在主句之前时，只能用关系代词所引导的非限定性定从放在主句之前时，只能用 as. As we all know, Taiwan is a part of China. 6) 非限定性定从的谓语为非限定性定从的谓语为 say
4、, know, imagine, announce, show, report, expect, explain, point out 等动词的被动形式时，只能用等动词的被动形式时，只能用 as. He is a famous scientist, as is well known. As is announced in todays newspaper, American president will pay a visit to China. 7) 关系词在非限定性定从中代表主句中的表语意思，并在从句中作表语时，只能用关系词在非限定性定从中代表主句中的表语意思，并在从句中作表语时，只能用
5、as. This question is very simple, as indeed it is. This question is quite easy, as are all of the questions in the following. 8) 如果定语从句的内容对主句有消极作用如果定语从句的内容对主句有消极作用 或含义不一致，则从句用或含义不一致，则从句用 which 引导，如引导，如 果语义一致时，则常用果语义一致时，则常用 as 引导。引导。 She did nothing but sit there, which showed her laziness. Our team
6、lost the game at last, which made us disappointed. 9) 从句中的谓语是复合结构时，用从句中的谓语是复合结构时，用 which 引导。引导。 Bob always tells a lie, which his parents find strange. 10) 从句是否定结构时，多用从句是否定结构时，多用 which. Mr Smith often praised his student Rose in public, which she didnt like all. 11) 在从句中作主语时，在从句中作主语时，as 多用于被动语态，多用于被
7、动语态，which 多用于主动语态。多用于主动语态。 He has been late again, as is expected. / Allen has made great progress, which delighted us. 练习： 1Dorothy was always speaking highly of her role in the play，_，of course，made the others unhappy （NMET 2000） Awho Bwhich Cthis Dthat2The weather turned out to be very good， _ wa
8、s more than we could expect Awhat Bwhich Cthat Dit3In the office I never seem to have time until after 5：30P.M. _ many people have got home （上海 95） Awhose time Bthat Con which Dby which4_，the Great Wall came into being in Qin Dynasty 2AIts clear BWe all know CAs we all know DWhich we all know5As man
9、y members were present _ agreed to the plan Awho Bthat Cwhich Das6_ is known to everybody，the moon trav- els round the earth once every month （NMET 2001） AIt BAs CThat DWhat （参考答案：1B 2B 3D 4C 5D 6B） 16Miss Green took up the story at the point_the thief had just made off with the jewels.A.where B.whi
10、ch C.as D.when17Why does she always ask you for help?There is no one else_ ,is there?A.who to turn to B.she can turn to C.for whom to turn D.for her to tur18The year before last,part of Southeast Asia was struck by floods,from _effects the people are still suffering.A.that B.whose C.those D.what19No
11、wadays teenagers like to go to fast food restaurants, _ as the name suggests,eating doesnt take much time.A.who B.where C.which D.what20Later I want to return home but couldnt find a company _I could use_I had learnt.A.where;that B.where;what C.when;what D.that;that21Government reports,legal papers
12、and most business letters are the main situations _ English is used.A.when B.that C.how D.where22We hope the measures to control house prices，_ are taken by the government，will succeed.A.as B.when C.since D.after23The boy the teachers considered _ failed in the final exam, surprised them very much.A
13、.to be the best；which B.as the best student；that C.to have been studying well；it D.such as a good student；which24The president,together with his bodyguards, _ to the nuclear station _ there was an accident 20 minutes ago.A.have come；which B.came；in which C.has come；where D.come；in which25Is there a
14、gas station around_ I can get some petrol?3A.which B.what C.where D.that26There was_ time_ I hated to go to school.A.a；that B.a；when C.the；that D.the；when27It was in the very house _ was built with stones _ he spent his childhood.A.that；that B.that；where C.which；that D.which；wh28These wild flowers are so special I would do _I_ them.A.what；can save B.all what；can to save C.what；can to save
