Grammar,ReadthepassageandfindtherulesIlikecomputeralot,whosefunctionisverygreat.Itcanhelpmedomuchwork,whichmakesmeveryhappy.Mymother，whooftenwarnsmenottoaddictedtocomputer,likescomputer,too.Wheneveryouareintroubleinstudy,youcanaskcomputerforhelp,whereyoucangeteverythingyouneed.ThisisthereasonwhyIlikeitsomuch.,Thenon-restrictiveattributiveclauses非限制性定语从句,限制性定语从句与非限制性定语从句的区别非限制性定语从句限制性定语从句1.有逗号隔开无逗号隔开2.不能用关系代词that可以用that3.关系代词充当宾语不能省略可以省略4.定语从句起补充作用，去掉后对句意没有影响定语从句起修饰限制作用，去掉后句意不完整,关系代词先行词人物人或物时间地点原因主宾主宾定语状语状语状语whowhomthatwhichwhose关系副词whenwhereForwhich非限制性定语从句的关系代词和副词的指代及功能,PracticeFillintheblanks1.In2008,_______theolympicgameswereheld,Ivisitedbeijing.2.Iamtakingweight-losspills,_____areveryuseful.3.Wanglingwentintoakeyuniversity,______madehisparentsveryhappy.whenwhichwhich,4.AfterlivinginParisfor50yearshereturnedtohishometown,_______hewasbornandgrewup.5.Mrwang,______isafamouswriter,isverypopularwithyoungpeople.6.Yaoming,______heightis2.24meter,isknownallovertheworld.7.Ihavemanyfriends,someof______arebusinessmen.8.Therearesomanybooks,someof______areworthreading.wherewhowhosewhomwhich,非限制性定语从句的一些特殊形式1)as,which非限定性定语从句as和which在引导非限制性定语从句时，这两个关系代词都指主句所表达的整个意思。但:1.as引导非限制性定语从句，位置灵活，可位于主句之前，之中或之后；which引导的非限制性定语从句只能放在主句之后。另外，as有“正如……，正像……”的意思。常用以下句型：,asweallknow,asisoftenthecase,asisknowntousall,asisreported,ashasbeensaidbefore,asoftenhappens,asyoucansee/hear/watch/expect,ascanbeseenfrom…,2.which引导的相当于一个并列句，可以用andthis代替，意思是“这件事”；as引导的从句主要起连接上下文的作用，表达说话人的观点、看法、并指出主句内容的根据或出处等。Hegotanimportantprize,whichmadeusexcited.Ourteamwonthegame,whichmakesussohappy.Asisknowntousall,knowledgeispower.,Asweallknow，Robertisgoodatlanguage.2.Heisverycareful,ascanbeseenfromhiswork.3.Einstein,asisknowntousall,isafamousscientist.4.Heleftearly,whichwasverywise.5.Theearthgoesroundthesun,aseveryoneknowns,3.注意下面几种句型的区别Asisknowntousall,knowledgeispower.ThatknowledgeispowerisknowntousallItisknowntousallthatknowledgeispower.Whatisknowntousallisthatknowledgeispower.,4.当先行词受such,thesame修饰时，常用as Ihaveneverheardsuchastoryashetells. Heisnotsuchafoolashelooks.ThisisthesamebookasIlostlastweek.注意：当先行词由thesame修饰时，偶尔也用that引导定语从句，但是和由as所引导的定语从句意思不同。SheworethesamedressthatsheworeatMary’swedding. Sheworethesamedressasheryoungsisterwore.她穿着她在MARY婚礼上穿过的一条裙子。她穿着和她妹妹所穿的一样的裙子。,1.______weknow/____isknowntoall,smokingisharmfultoone'shealth.2.Thesunheatstheearth,______isveryimportanttous.3.Alicereceivedaninvitationfromherboss,___cameasasurprise. A.itB.thatC.whichD.he4.Itrainedhardyesterday,____preventedmefromgoingtothepark.. A.thatB.whichC.asD.itAswhichAs,Exercises,Motherboughtmeadictionaryonmybirthday,________mademeveryhappy. A.whatB.that C.who D.which2.Lookatthewatchinthewindow.Don’tyouseeitis_______watch________Helenlosttheotherday?A.asthesame;as B.the same;asC.thesame;which D.asthesame;that3.________isknowntoeverybody,themoontravelsroundtheearthonceeverymonth.A.ItB.AsC.ThatD.What,7.ThedoctoradvisedVerastronglythatsheshouldtakeaholiday,but__________didn’thelp.A.whichB.itC.sheD.he8.________isreportedinthenewspaper,talksbetweenthetwocountriesaremakingprogress.A.ItB.AsC.ThatD.What9.Isthistheonlyreason______atthemeetingforhiscarelessnessinhiswork?A.thatheexplainedB.whatheexplainedC.whyheexplainedD.whichheexplained,10.NewYork,_______lastyear,isaniceoldcity.A.thatIvisitedB.whichIvisitedC.whereIvisitedD.inwhichIvisited11.Wearelivinginanage______manythingsaredoneoncomputer.A.whichB.thatC.whoseD.when12._______hasbeenannounced,weshallhaveourfinalexamsnextmonth.A.ThatB.AsC.ItD.What,10.NewYork,_______lastyear,isaniceoldcity.A.thatIvisitedB.whichIvisitedC.whereIvisitedD.inwhichIvisited11.Wearelivinginanage______manythingsaredoneoncomputer.A.whichB.thatC.whoseD.when12._______hasbeenannounced,weshallhaveourfinalexamsnextmonth.A.ThatB.AsC.ItD.What,13.Wewillbeshownaroundthecity:schools,museums,andsomeotherplaces,_______othervisitorsseldomgo.A.what.B.whichC.whereD.when14.Haveyouseenthefilm“Titanic”,________leadingactorisworldfamous?A.itsB.it’sC.whoseD.which15.CarolsaidtheworkwouldbedonebyOctober,_______personallyIdoubtverymuch.A.itB.thatC.whenD.which,16.RecentlyIboughtanancientChinesevase,_____wasveryreasonable.A.whichpriceB.thepriceofwhichC.itspriceD.thepriceofwhose17._____hasalreadybeenpointedout,grammarisnotasetofdeadrules.AsB.ItC.ThatD.Which18.Theweatherturnedouttobeverygood,____wasmorethanwecouldexpect.A.whatB.whichC.thatD.it
