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定语从句第三层级Unit3GrammarandUsageAttributiveClausesⅢ限制性定语从句VS非限制性定语从句Ⅰ.限制性定语从句不用逗号和先行词隔开；非限制性定语从句用逗号将主句和从句隔开。Ivisitedthefarmwherealotofcowswereraised.Thedresswhichyouwantcanbefoundatanyshop.限制性定语从句Thedress,whichyoucangetatanyshop,ispopularthisspring.Thefarmisverybeautifulandattractive,whichmakeitveryfamous.非限制性定语从句Ⅱ.限制性定语从句是用来限制先行词的意思，与先行词关系紧密，如果去掉的话会使句子意思不明确；而非限制性定语从句与先行词关系松散，常对先行词起附加说明的作用，即使去掉也不影响句子的主要意思。Thebooks,inwhichtherearebeautifulpictures,areforchildren.定语从句起补充说明作用：给孩子们的书里有花。Thebooksinwhichtherearebeautifulpicturesareforchildren.定语从句起限定作用：有图片的书是给孩子们的而不是别人。Theoldmanhasasonwhoisadoctor.定语从句起限定作用：老人还可能有其他儿子。Theoldmanhasason,whoisadoctor.定语从句起补充说明作用：老人只有一个儿子。ThisisthevillagewhichIvisitedtenyearsago.Tomlivesinthisvillage,whichIvisitedtenyearsago.下面句子的先行词是否可以省略？Ⅲ.在限制性定语从句中，关系代词充当宾语时可以省略。Ilostthephotos(that/which)ItookinIraq.在非限制性定语从句中，关系代词无论在什么情况下都不可以省略。Ilosthisphotos,whichhetookinIraq.填入合适的引导词：•SheisgoingtospendthewinterholidayinMacao,________returnedtoChinain1999.•Tomsoldhishouse_____________wasindowntown.•Tomsoldhishouse,_____madehisfatherveryangry.•Ihaveasister___________worksinahospital.whichthat/whichwhichwho/thatⅣ.非限制性定语从句有两个禁忌：that和why不能引导非限制性定语从句。在非限制性定语从句中，that的作用由who，whom和which分别承担。Theycouldn’tleadapeacefullifeatthatmoment,_______madeallthepeopleintheworldworried.Which在这指代的是什么？Hefailedinthefinalexam,whichmadehisfatherveryangry.Which在这指代的又是什么？ShewhostudiesinBritaincamebacktoChina.这里的who指代的是什么？whichⅤ•非限制性定语从句中关系代词which可以指代整个句子的内容。•限制性定语从句中关系代词只能指代一个先行词。theway做先行词时Idon’tliketheway__________youspeaktoher.A./B.inthatC.whichD.ofwhichthewayinwhichtheway做先行词，在从句中做状语时，关系词可用inwhich,that,或者省略。关系词as的用法1、在非限制性定语从句中的两个固定句型。such…as…thesame…as…高一定语从句复习Theyaresuchbeautifulpictures_____theyattractedmanypeople’sattention.Theyaresuchbeautifulpictures_____________attractedmanypeople’sattention.beautifulpicturesasthat（as引导的定语从句）（that引导的结果状语从句）看从句中是否缺少成分！2.as在非限制性定语从句中的用法e.g.Asweallknow,theearthisround.e.g.Shehasbeenlateagain,aswasexpected.e.g.Asyou’vepointedout,heprovestobethebeststudentintheclass.Ⅰ.as.常与know,see,expect,announce,pointout等词连用，有“正如…..正象…”一类的含义，表示众所周知的信息.Ⅱ.which引导的非限制性定语从句不能放句首,as却可以。Practice:1.Thefactory__________ownerisfromShanghaiisverybig.A.whichB.whereC.whoseD.ofwhich2.Theboss______________departmentMsKingworkedtenyearsagolookeddownuponwomen.A.inwhichB.inthatC.inwhoseD.whosetheboss’s’sthefactorywhosewhosein3.Thisisthehouse___________thewindowwasbrokenyesterdayevening.A.ofwhichB.towhichC.whoseD.inwhichthehouseofwhichInthedarkstreet,therewasn’taperson_____whomshecouldturnforhelp.Thewolf_______whichthesheepwaskilledwasshot.Oursisabeautifulschool,_____whichweareproud.Thespeed_______whichyoudriveyourcarmustn’ttoohigh.thewolfbyofabeautifulschoolthespeedatHisbike_____whichhewenttoworkwasstolenlastnight..hisbikeonapersonto高一定语从句复习()Hemadeanotherwonderfuldiscovery,________________________isofgreatimportancetoscience.A.whichIthinkisB.whichIthinkitisC.whichIthinkitD.IthinkwhichisNothavingbeentherebefore,hesimplyhadnoideaabouttheplace,______________________isworthvisiting.A.whereeveryonesaysB.whicheveryonesaysC.everyonesaysthisD.everyonesaysthatwhichIthink()theplacewhicheveryonesaysanotherwonderfuldiscoveryThefilmbroughtthehoursbacktome________________Iwastakengoodcareofinthatfar-awayvillage.A.untilB.thatC.whenD.wherethehoursduringwhichwhenItwasinthesmallhouse_______________wasbuiltwithstones______hespenthischildhood.A.that;thatB.which;whichC.which;thatD.that;whichthesmallhouseWhich/thatthatThanks