高一英语学案授课教师:上课时间:12月2日总课时:31Unit3Grammarandusage学习内容:语法-非限制性定语从句学习课时:2课时课型:新授课【学习目标】:1.复习限制性定语从句及关系代词和关系副词的用法2.了解非限制性定语从句及其关系代词who,whom,which,whose,as和关系副词when,where的选用。3.了解限制性定语从句与非限制性定语从句的区别并正确运用4.了解as和which的用法及其区别5.了解非限制性定语从句和并列句的区别【学习重点】:1.非限制性定语从句中关系代词who,whom,which,whose,as和关系副词when,where的选用2限制性定语从句与非限制性定语从句的区别3了解as和which的用法及其区别4了解非限制性定语从句和并列句的区别【学习难点】:限制性定语从句与非限制性定语从句的区别本堂课流程:Step1、复习检测Step2、自主学习Step3、基础探究Step4、深层探究Step5、课堂小结Step6、课后作业复习检测篇:限制性定语从句关系词复习Task1:用正确的关系词完成下列句子1.Thelesson__________westudiedyesterdaywasinteresting.2.Doyouknowthegirl____isadancer.3.Don’treadsuchbooks__youcannotunderstand.4.Thegirl______yousawatthemeetingisawell-knownswimmer.5.Hehasasister______nameIcan’tremember.6.Ineverreallyunderstandthereason____hemadesuchaseriousmistake.7.Istillrememberthedays_____westudiedtogether.8.Peopleliketoliveinaplace_____there’sfreshairandlittleTask2总根据task1进行总结,并完成下表班级姓名2013-12-22关系代词主语宾语定语关系副词指代人指时间指代物指地点指原因二:自主学习篇:课前预习——学习初体验。1、用适当的关系词完成下列句子1.Amy,______tookweight-losspills,nowrealizesthathealthisimportant.2.Mycousin,_____bodyisslim,stillwantstolosesomeweight.3.I’mtakingsomeweight-losspills,_____arequitepopularhere.4.Mypillsareinthebedroom,________Ialwayskeepthem.5.We’llputofftheoutinguntilnextmonth,_______Amyfeelbetter.6.InChina,manypeople,someof_______arenotoverweightatall,arealwaysgoingonadiet7.Ilikedoingsports,allof_____arehelpfultomyhealth2.根据第一题总结归纳:非限制性定语从句引导词的选择1)先行词指人,在从句中作主语,引导词用_________.(2)先行词指人,在句中作宾语,引导词用_________.(3)先行词指物,在句中作主语或宾语,引导词用___________.(4)先行词在句中作定语,无论指人或者指物,引导词都用__________.(5)先行词在句中作时间状语用____________.(6)先行词在句中作地点状语用__________.(7)如果先行词作介词的宾语:先行词指人,介词提前的结构是:介词+______先行词指物,介词提前的结构是:介词+________基础探究篇Task1、限制性定语从句与非限制性定语从句的区别1.比较下列句子,完成填空1).Ihaveasister,whoworksinahospital2).Ihaveasisterwhoworksinahospital1)中的从句是___________,作用:________.翻译:_____________(隐含的意思:______________).2)中的从句是________作用_________.翻译:____________(隐含的意思:__________).班级姓名2013-12-233)Ihaveahousewhichhasabigstudy(书房)。4)Ihaveahouse,whichhasabigstudy。观察上面一组例句可知:3)句由______引导的_______定语从句,先行词为______,此处which可以替换为_____。可译为,___________________。4)句由_____引导的_______定语从句,先行词为______,此处which不可用______代替。可译为,______________________________品味一“翻”:a)Hewillwearnoclotheswhichwillmakehimdifferentfromothers.______________________________________________________b)Hewillwearnoclothes,whichwillmakehimdifferentfromothers._________________________________________________________c)Intheclass,thereare36studentswhoareinterestedinpopularmusic.__________________________________________________________.d)Intheclass,thereare36students,whoareinterestedinpopmusic._____________________________________________Task2.根据上面的例子和课本48页的讲解,总结归纳:限制性定语从句与非限制性定语从句的区别1)限制性定语从句:是用来___________和___________先行词的,它与先行词意义关系________,(A:密切;B:不密切)是先行词___(A:可缺少;B:不可缺少)的部分,如果去掉定语从句,这个句子表达的意思就___________(A:不明确;B:明确.)了。翻译时要译为定语,可译为一句(较短的一般译为的字结构)。限制性定语从句的引导词有_______________2.非限制性定语从句在结构形式上常与主句之间用___________隔开,是对先行词的________,去掉定语从句__________(A:会影响;B:不会影响)主句的意思。翻译时,主句先译,从句单独成句.非限制性定语从句的引导词有__________________Task3课堂点拨——难点补充篇:1.引导限制性定语从句时,关系代词which可以与that互换;但引导非限制性定语从句时,只能用which。Sheheardaterriblenoise,______frightenedher.A.thatB.whichC.whatD.who.2.先行词为reason时,限制性定语可以用why或forwhich来引导;非限制性定语从句则只能用forwhich来引导。Ihadtoldthemthereason,______Ididn’tattendthemeeting.A.forwhichB.atwhichC.forwhomD.why3.引导限制性定语从句的关系代词在从句中担任宾语时可以被省略;但引导非限制性定语从句的关系代词即使作宾语也不能省略。Hewaseagertogotothehospitaltoseehisstepmother,______helovedandrespectedashisownmother.A.asB.whichC./D.whom班级姓名2013-12-244.引导限制性定语从句时并作从句宾语的关系代词whom可以用who来代替;但在非限制性定语从句中,whom就不能用who替换。DoyouknowTom,_____wetalkedabout?A.whichB.thatC.whomD.who5.Afive-year-oldboycanspeaktwoforeignlanguages,__________surprisesallthepeoplepresent..限定性定语从句:从句只修饰先行词。非限定性定语从句:从句既可以修饰先行词,也可以修饰整个句子或句子的一部分。这时引导词用which,从句谓语动词要用第三人称单数。探究一:which和as引导非限制性定语从句的区别熟读深思1.朗读以下各句,注意划线部分,并思考:△which和as引导的非限制性定语从句有何区别?(位置,含义)1.Asisknowntousall,theearthmovesroundthesun.众所周知,地球是围绕太阳运动的.2.David,asyouknow,isaphotographer.戴维是个摄影师,如你所知。(不可用which)3.LiMingislate,asisoftenthecase.李明迟到了,这是经常发生的。(可用which)4.LiMingwaslate,which(=andthis)madeMr.Zhangveryangry.李明迟到了,这使张先生非常生气。(不可用as)5.Hemarriedher,whichwasunexpected.他和她结婚了,这是出乎意料的。(不可用as6).Hefailedintheexamagain,aswasexpected.了(不可用which)2.归纳总结:相同之处:当先行词指整个主句的意思时,这类非限制性___________只能由_________或________来引导。相当于andthis或andthat,在定语从句中可以充当主语或宾语两者的区别在于:1.which引导的定语从句只能位于_______,而as引导的定语从句可位于________________。(位置)2.______常译作“这”;而____常译作“正如,像…一样”,且多与see,expect,imagine,know,hope等动词连用。(含义)3.在定语从句中作主语时,若用_____,其谓语部分一般有be;若谓语是不含be的行为动词时,要用________。4.________引导的定语从句只表示一个众所周知或意料之中的事,而which不受此限制。5.as常用于固定搭配中:asisoftenthecase(这是常有的事),asweexpected(不出所班级姓名2013-12-25料);asoftenhappens(正如经常发生的那样);asisknowntoall(众所周知);ashasbeensaidbefore(正如以前所说);asismentionedabove(正如上面所提到的)等。3.活学活用:用which和as填空1.Aftergraduatingfromcollege,Itooksometimeofftogotraveling,_____turnedouttobeawisedecision.2.Ilookedintotheireyes,Ifoundtheydidn’tcare,______toldmeitwouldbeuseless,butwhenIlookedintoyours,Isawkindness.3.Jimpassedthedrivingtest,______surprisedeverybodyintheoffice.4.___isoftenthec