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()1.---Thesebananaslookdifferentandtheyaresweet.---Right.They____herefromTaiwanyesterday.A.wasbroughtB.werebroughtC.bringD.arebrought()2.---Mom,mayIgoouttoplayfootballthisafternoon?---Youcan,ifyourhomework_____.A.isfinishedB.willfinishC.hasfinishedD.willbefinished()3.Atalkondevelopmentinscience_____nextweek.A.isgivenB.wasgivenC.hasgivenD.willbegiven()4.Thiskindofdesk____ofwood.A.ismakingB.madeC.ismadeD.makes()5.ThedoctorlookedoverPetercarefullyafterhe_____tothehospital.A.takesB.istakenC.tookD.wastakenBADCD1.在复合句中，修饰某一名词或代词的从句叫做定语从句。2.定语从句所修饰的词叫先行词。定语从句放在先行词后面。3.引导定语从句的词叫关系词。1.Thisisadoctor.Thedoctorsavedtheboy’slife.2.Thenurseisverykind.Shelooksaftermylittlesister.3.Thisistheengineer.Hegivesusatalkonscience.两句合并。1.Thisistheman________wantstoseeyou.2.Thestudent_______answeredthequestionisZhangHua.1.Thisisadoctorwho/thatsavedtheboy’slife.2.Thenursewho/thatlooksaftermylittlesister.3.Thisistheengineerwho/thatgivesusatalkonscience.whowho1.Heistheman.Isawhimyesterday.2.Thisisthepen.heboughtityesterday.2.Thisisthepen(which)heboughtyesterday.(which在句子中做宾语)注意：which指物，在定语从句中做主语或者宾语，做宾语时可省略1.Heisthemanwhom/thatIsawyesterday.1.Hehasafriendwhosefatherisadoctor.1.Hehasafriend。Hisfatherisadoctor.2.Ilivedinahouse.Itsroofhasfallenin.2.Ilivedinahousewhoseroofhasfallenin.whose通常指人，也可指物，在定语从句中做定语.特殊用法1.ThebookisthebestthatIhaveread.Thisisthebiggestlaboratory________wehaveeverbuiltinouruniversity.that2.当先行词为不定代词anything,everything,nothing,any等时。Thereisn'tanythingthatIcando.Hetoldmeeverything_____heknows.that在复合句中，修饰某一名词或代词的从句叫定语从句。被修饰的名词或代词叫先行词，定语从句一般放在先行词的后面。定语从句的概念定语从句结构：先行词+关系词+定语从句关系词常有三个作用：1、引导定语从句2、代替先行词3、在定语从句中担当一个成分1.YourteacherofChineseisayounglady____comesfromBeijing.A.whoB.whichC.whomD.whose2.-Doyouknowtheman______istalkingwithyourfather？-Yes，he’sourheadmaster.A.heB.whoC.whichD.whom3.Canyoulendmethedictionary______theotherday？A.thatyouboughtB.youboughtitC.thatyouboughtitD.whichyouboughtit4.Thisisthemuseum______wevisitedlastyear.A.whereB.inwhichC.whichD.inthat5.Isthisthefactory_________youvisitedtheotherday?A.thatB.whereC.inwhichD.theoneBBACA定语从句（2）关系词先行词在从句中成分who人主语，宾语whom人宾语whose人定语which物主语，宾语that物，人主语，宾语when时间状语where地点状语why原因状语