语法专题五定语从句学习目标：1.了解定语从句的概念2．清楚关系代词与关系副词的区别，并能正确使用。学习重点：能够在具体语境中熟练运用定语从句。学习难点：在具体语境中正确使用关系代词和关系副词。考点分析：语法填空中的准确运用；写作中的灵活运用；在完形填空和阅读理解中，对复合句的正确理解。Part1.定语从句的定义及其关系代词的使用Step1.分析下列句型：1.Ican’tremembereverything(that)happenedduringthetimeinuniversity.2.Thefilmisaboutaspy(whose)wifebetrayshim.3.BarbarywasworkinginBeijing,(where)shewentdailyinabus.4.Hesaidthathehadneverseenherbefore,(which)wasnottrue.5.Englishisalanguagesharedbyseveraldiversecultures,eachof(which)usesitsomewhatdifferently.总结：在复合句中，用来修饰____________和____________的从句叫做定语从句。被修饰词叫____________,用来引导定语从句的关联词叫_____________。定语从句分为____________和_____________。(思考：限制性定语从句和非限制性定语从句的区别是什么？)______________________________________________________________________________________________________________________________________________________________Step2.关系代词的用法总结：关系代词：关系代词先行词（指人或物）在从句中充当什么成分例句分析who指人作主语Theboywhoisstandingthereismycousin.whomTheman(whom)youmetyesterdayisMr.Smith.Theboy(whom)youarelookingforishiddenbehindthetree.whose=()whom=()Doyouknowtheboywhosefatherisanengineer?Helivesinahousewhosewindowsfacesouth.thatIdon’tknowabouttheman(that)youmentioned.Aplaneisamachinethatcanfly.whichThepen(which)myunclegavemeismissing.Childrenliketoreadbookswhichhavewonderfulpictures.asWehavefoundsuchmaterialsasareusedintheirfactory.Heisnotthesamemanashewas.Asweallhadexpected,Liuxiangwonthegoldmedalinthecompetition.注意：as可以引导非限制性定语从句，既可以放在主句前，也可以放在主句后，位置较为灵活，意为“正如…”，后面的谓语动词一般是：see,know,expect,say,mention,report,announce等。但是，which引导的非限制性定语从句，只能放在主句之后，意为“这一点”。Freddie,asmightbeexpected,wasattendingtheconference.Chinaisbecomingoneofthemostpowerfulcountriesintheworld,as/whichweallknow.Heinvitedustodinner,whichwasverykindofhim.2.as还可以引导限制性定语从句，常用于固定搭配中，如：such+名词+as…意为：“像……一样的”，“像……之类”thesame+名词+as……意为：“和……同样的”。例句：Heisnotsuchafoolashelooks.（作表语）Ineverheardsuchstoriesashetells.（作宾语）Youmustshowmywifethesamerespectasyoushowme.（作宾语）Step3.“介词+关系代词”引导的定语从句分析下列例句:Themantowhomheistalkingismyfather.Thisi