高中英语 Unit5 Traveling abroad Grammar课件 新人教版选修7.ppt

Grammar,非限制性定语从句,Step1新课标P86Definitionofthenon-retributiveclauses:,Step2连接词非限制性定语从句的引导词有：1.关系代词：as,which,who,whom,whose2.关系副词：when,where,Step3as与which的用法区别：which引导非限制性定语从句只放在主句后，意为“这一点，这件事”。as引导非限制性定语从句放在句首，句中，句末，意为“正如,像一样”。,_weknow,smokingisharmfultooneshealth.Thesunheatstheearth,_isveryimportanttous.,As,which,as/which引导非限定性定语从句的区别,as引导非限制性从句，常意为“正如”.可出现在句首、句中、句末。常见结构有：,asisknowntoallasisoftenthecaseasmight/couldbeexpectedashasbeensaidbeforeashasbeenmentionedaboveashasbeenpointedoutascanbeimaginedascanbeseen(fromthesefigures)asoftenhappensaswillbeshown,这是常有的事,正如人们所预料的,正如上面所提到的,正如前面所说的,正如所指出的,正如所示,Step4限制性定语从句与非限制性定语从句的区别：,作用,起限制作用,限制先行词,不可省略,否则主句意义不完整,对主句进行补充说明，即使省略掉，原句意思仍然完整,结构,不用逗号与主句隔开,用逗号与主句隔开,功能,是先行词不可缺少的定语,对先行词或主句进行补充说明,引导词,作宾语时可省,作宾语时不可省,可用that,不可用that,可用why,不可用why，用forwhich代替,译法,先译从句，后译先行词，常译作“的”,通常译成并列句,Step5使用非限制性定语从句时应注意的问题：,1.that不能引导非限制性定语从句。2.非限制性定语从句还能将整个主句作为先行词，对其进行修饰，这时从句谓语动词要用第三人称。Eg:HeisfromAmerica,whichisknowntousallinourcompany.3.非限制性定语从句中，不用why引导，用forwhich代替why。Eg:Doctorscouldnotgivethereason,forwhichsomanypeoplecaughtthedisease.,Step6语法知识精炼：,高考链接,1.ThepresidentoftheWorldBanksayshehasapassionforChina,_heremembersstartingasearlyashischildhood.(2013.江苏高考）A.whereB.whichC.whatD.when,B,2.MoYanwasawardedtheNobelPrizeforLiteraturein2012,_madeoneoftheChinesepeopleslong-helddreamscometure.(2013.安徽高考）A.itB.thatC.whatD.which,D,3.Wehavelaunchedanotherman-madesatellite,_isannouncedintodaysnewspaper.(2013.天津高考）A.thatB.whichC.whoD.what,B,4._isoftenthecasewithchildren,Amywasbetterbythetimethedoctorarrived.(2013.陕西高考）A.ItB.thatC.whatD.As,D,5.Thechildren,_hadplayedthewholedaylong,werewornout.(2013.浙江高考）A.allofwhatB.allofwhichC.allofthemD.allofwhom,D,6.Aftertheflooding,peopleweresufferinginthethatarea,_urgentlyneededcleanwater,medicineandsheltertosurvive.(2012.江苏高考）A.whichB.whoC.whereD.what,B,7.Betweenthetwopartsoftheconcertisaninterval,_theaudiencecanbuyice-cream.(2011.江苏高考）A.whenB.whereC.thatD.which,A,8.Iwalkedupt