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1、第二章名词性从句 名词性从句讲解一、名词性从句的种类及连接词名词性从句具有名词的功能，分为主语从句、宾语从句、表语从句和同位语从句四种。它由以下三种连接词引导：1连词：that，whether，if。2连接代词：who，whom，whose，which，what等。3连接副词：when，where，why，how等。【例1】 _ my mother came back made me very happy.是主语从句AThat BWhether CWhat DWhich答案A【例2】 Go and get your coat.Its _ you left it.是表语从句Athere Bwhe
2、reCthere where Dwhere there答案B【例3】 They told the policeman the fact _ they had nothing to do with the murder.是同位语从句Awhich Bwhen Cthat Dwhat答案C二、如何选用名词性从句的连接词1根据连接词的词义；2根据连接词在从句中所作的成分；3根据惯用法知识。【例4】 These photos will show you _.Awhat does our village look likeBwhat our village looks likeChow does our
3、village look like Dhow our village looks like答案B【例5】 _ well go camping tomorrow depends on the weather.AIf BWhether CThat DWhat答案B三、名词性从句常见连接词的用法1连词that的用法(1)that引导名词性从句时既无词义也不在从句中作任何成分。(2)that引导主语从句、表语从句、同位语从句时一般不可省，引导宾语从句时常可省。但是and连接两个或两个以上由that引导的宾语从句时，第一个that可省，从第二个往后，that不可省。(3)that从句一般不作介词的宾语。
4、但：in that “因为”，except/but that“除了”例外。【例6】 _ you dont like him is none of my business.AWhat BWho CThat DWhether答案C【例7】 I thought _ he might fail in the exam worried him.Awhat Bthat C不填 DB&C答案B【 例 8】 They said _ they were strangers there and _ they had lost their way.Athat；不填 B不填；thatCwhat；that D不填；不填
5、答案B2whether，if的用法whether，if引导名词性从句时，表示“是否”，不在从句中作任何成分。二者常可通用，但在下面几种情况下一般只用whether：(1)引导主语从句、表语从句、同位语从句。(2)在动词discuss之后。(3)在介词之后。(4)后面紧跟or not时。(5)动词不定式前。【例9】 _ well succeed depends on _ we have enough courage.AWhether；whether BIf；ifCWhether；if DIf；whether答案A【例10】 They are discussing _ they should he
6、lp her out.Awhether Bif Cthat Dwhat答案A3连接代词who，whom的用法(1)who引导名词性从句时，表示“谁”，在从句中作主语、宾语或表语。(2)whom引导名词性从句时，表示“谁”，在从句中一般只作宾语。【 例 11】 _ will give us a talk is unknown to all.AWho BWhom CThat DWhether答案A【例12】 I want to know _.Awho is he Bwho he isCwhom is he Dwhom he is答案B4连接代词whose的用法whose引导名词性从句时，表示“谁的
7、”，一般作定语或表语。【例13】 Please tell me _ dictionary this is.Please tell me _ this dictionary is.Awho Bwhos Cwhom Dwhose答案D/D5连接代词what的用法what引导名词性从句时，表示“所的(事/人)”、“什么”、“多么”等，在从句中作主语、宾语、表语、定语等。【例14】 My father isnt _ he used to be ten years ago.Athat Bwhat Cwho D不填答案B【例15】 As is known to all，_ he has become a
8、singer is _ we have expected.Athat；which Bwhat；thatCwhat；which Dthat；what答案D6连接代词which的用法which引导名词性从句时，表示“哪一个(些)”，在从句中作主语、宾语、表语、定语等。【例16】 Dr Black comes from either Oxford or Cambridge.I cant remember _.Awhere Bthere Cwhich Dthat答案C7连接副词when，where，why，how的用法(1)when引导名词性从句时，表示“什么时候”，常作时间状语。(2)where引导
9、名词性从句时，表示“什么地方”或“的地方”，常作地点状语。(3)why引导名词性从句时，表示“为什么”，常作原因状语。(4)how引导名词性从句时，表示“怎样”，常作方式状语。【例17】 I prefer shutting myself in and listening to music all day on Sundays.Thats _ I dont agree.You should have a more active life.(2010江苏)Awhere Bhow Cwhen Dwhat答案A【例18】 Cindy shut the door heavily and burst in
10、to tears.No one in the office knew _ she was so angry.(2010湖南)Awhere Bwhether Cthat Dwhy答案D【例19】 He often thinks of _ he can do more for his country.Athat Bwhat Chow Dwhich答案C四、名词性从句的其他问题1名词性从句的语序名词性从句用陈述语序，即主谓不倒装。【 例 20】 When changing lanes， a driver should use his turning signal to let other drive
11、rs know _.(2010上海)Ahe is entering which laneBwhich lane he is enteringCis he entering which laneDwhich lane is he entering答案B【例21】 The machine wont work.I dont know _.Awhat is the matter Bwhat the matter isCthe matter is what Dthe matter what is答案A2what与that引导名词性从句的区别what在名词性从句中须作成分(即主语、宾语、表语、定语等)，t
12、hat在名词性从句中不作成分。【例22】 Part of the reason Charles Dickens loved his own novel，David Copperfield，was _ it was rather closely modeled on his own life.(2010北京)Awhat Bthat Cwhy Dwhether答案B【例23】 _ the boy has gone to college makes his mother different from _ she used to be.AThat；that BWhat；whatCThat；what D
13、What；that答案C3it作形式主语的句型(1)It be形容词/名词/过去分词that从句。(2)It seems/happens that从句。【例24】 _ is a fact that English is being accepted as an international language.AThere BThis CThat DIt答案D4句型This/That/It is because/why.的意义This/That/It is because.意为“这(那)是因为”；This/That/It is why.意为 “这(那)是的原因”。【例25】 I drove to
14、Zhuhai for the air show last week. Is that _ you had a few days off?Awhy Bwhen Cwhat Dbecause答案A【例26】 Yesterday I didnt go to school.That is _ I ate too much and felt stomachache.Awhy Bhow Cwhen Dbecause答案D5由reason作主语时，表语从句的连接词reason作主语时，表语从句所用连词为that，一般不用because或why等。【例27】 One reason for her prefer
15、ence for city life is _ she can have easy access to places like shops and restaurants.(2010上海)Athat Bhow Cwhat Dwhy答案A6do you think/believe/suppose在特殊疑问句中的使用句型为：疑问词do you think/believe/suppose其余部分？【例28】 We havent heard from Jane for a long time.What do you suppose _ to her?Awas happening Bto happenC
16、 has happened D having happened答案C【例29】 Where do you think _ he _ the computer?Athat；bought Bhas；boughtCdid；buy D不填；bought答案D7含ever的连接代词的用法表示“无论”，具体用法如下：(1)whoever“无论谁”，在从句中作主语、宾语、表语等。(2)whomever“无论谁”，在从句中一般只作宾语。(3)whatever“无论什么”，在从句中作主语、宾语、表语、定语等。(4)whichever“无论哪一个”，在从句中作主语、宾语、表语、定语等。(5)whosever“无论
17、谁的”，在从句中作定语、表语等。【例30】 Please give this book to _ comes first in the exam.Awhoever Bwhomever Cwhichever Dwhatever答案A【例31】 All the books I have are here.You may borrow _ you like.Awhatever BwhicheverCwhenever Dhowever答案B8that引导同位语从句和定语从句的区别that引导同位语从句时，that在从句中不作成分(一般不省)，且不可用which来取代；that引导定语从句时，that须
18、作主语、宾语、表语(作宾语时常可省)，且常可用which来取代。【例32】 The suggestion _ students should learn something practical is worth considering.Athat Bwhich Cif D不填答案A【 例 33】 The suggestion _ they are considering is _ students should learn something practical.Athat；if Bwhich；thatCthat；if D不填；whether答案B【例34】 The news _ he told me yesterday isnt true，but the news _ he was beaten to death this morning is true.Athat；what Bthat；不填Cwhich；that Dwhat；which答案C
