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1、Unit5LearningaboutChina一.教学内容：Unit5: LearningaboutChina.Review 二.重点、难点：定语从句及单项选择训练 三.具体内容:定语从句专讲专练概念：在含有主句和从句的复合句中，修饰主句中的某一名词或代词的从句叫做定语从句。它所修饰的词叫先行词。定语从句就跟在先行词的后面。用来引导定语从句的词叫关系词，分为关系代词（who,whom,that,which,whose）和关系副词（where,when,why）。e.g.Didyouseethepersonwho/
2、thatstoleit?Thisisthepenwhich/thatheislookingfor.上面两例中的先行词分别是theperson与thepen，后面是由关系代词who/that;which/that引导的定语从句。2.关系代词的选择及功能。引导定语从句的词有关系代词who,that,which,whom,whose和关系副词where,when,why。它们放在先行词和定语从句之间起联系作用，同时又充当定语从句中的一个成分（如主语或宾语）。有关先行词的选择取决于两点：先行词是人还是物；关系代词在从句中
3、做主语还是宾语。具体用法如下：1）当先行词是人时，关系代词可以用who或that；当先行词是物时，关系代词可用which或that。e.g.Thefilmwhich/thattheysawwasveryinteresting.Theboywho/thatissittinginthesunismybrother.2）当关系代词在句中做宾语时，关系代词可以省略。e.g.Theman（who,whom,that）theyarewaitingforcomesfromJapan.3）whose指人或物的所有格。e.g.Do
4、youknowtheboywhosehairisyellow?Theclassroomwhosewindowsareclosedisours.4）关系副词when,where,why=介词+whichwhen表时间，跟在hour,moment,day,month,year,season,time等之后。e.g.Canyoutellmethedatewhen/onwhichyouwereborn?where表地点，跟在place,village,town,city,home等之后。e.g.Thisistheplac
5、ewhere/inwhichIgrewup.why表原因,在reason（原因）之后。That’sthereasonwhyshedidn’tcometowork.3.特殊情况1）当先行词被形容词的最高级或序数词修饰时，关系代词必须用that。e.g.Thisisthebestnovel（that）Ihaveeverread.2）如果指物的先行词是不定代词或被不定代词修饰时，必须用that，不能用which。不定代词有all,something,everything,anything,nothing,none,th
6、eone,much,little,every,any,some等。e.g.Imeantheone（that）youtalkedaboutjustnow.3）当先行词有theonly,thevery,thelast,thesame,thefirst等词修饰时，关系代词必须用that。e.g.Heistheonlyperson（that）Isawthere.4）关系代词在定语从句中作介词的宾语时，如果介词放在它的前面，只能用which或whom。e.g.Thisistheroomthat/whichhelivedin
7、twoyearsago. =Thisistheroominwhichhelivedtwoyearsago. Thegirlwho/whom/thatheistalkingtoismysister.=Thegirltowhomheistalkingismysister.但有些介词短语的固定词组不能拆开e.g.Thebabieswho/thatthenursearelookingafterarehealthy.5）当关系代词在定语从句中充当主语时，定语从句的谓语动词取决于先行词而不是关系代词。e.g.Theg
8、irlwhohaslonghairismydaughter. Thetreesthatwereplantedbyuslastyearhavegrownwell.6）当引导定语从句的关系代词在从句中作表语时用that。e.g.Sheisnolongerthegirlthatshewantedtobe.7）当有两个或两个以上分别表人和物的先行词时只能用thate.g.Het
