2019年春八年级英语下册 Module 9 Friendship模块语法专练课件 （新版）外研版

模块语法专练语法精讲whether/if及疑问词引导的宾语从句1.whether/if引导的宾语从句。(1)whether/if引导宾语从句时,意为“是否”,表示不确定的概念,常位于ask,see,say,know,findout等词或短语后面。一般情况下,两者可互换,在口语中多用if。例如:Heaskedif/whethertheyneededsomehelp.他问他们是否需要帮助。(2)whether和if的区别。①在动词不定式之前只能用whether。例如:Ican’tdecidewhethertostay.我不能决定是否留下。②在固定结构“whether...ornot”中,只能用whether。例如:Iwanttoknowwhetherit’sgoodnewsornot.我想知道它是否是个好消息。③在介词后只能用whether。例如:Hisfatherisworriedaboutwhetherhemaylosehisjob.他的父亲担心他是否会失去工作。语法精讲2.疑问词引导的宾语从句。(1)由特殊疑问句充当宾语从句时,该从句由特殊疑问词引导,此从句要用陈述句的语序。例如:Idon’tknowwhentheplaneflies.我不知道飞机什么时候起飞。(2)当宾语从句由连接副词或代词when,where,who,why,which,what,whose等引导时,有时可以改为由“疑问词+动词不定式”构成的不定式短语,使宾语从句转化为简单句。但前提是主句的主语与从句的主语一致或主句的宾语是从句的主语。例如:CanyoutellmehowIcangettothebusstop?→Canyoutellmehowtogettothebusstop?你能告诉我怎样去公交车站吗?语法精练Ⅰ.单项填空(C)1.—Iwonder.—Yes,ofcourse.A.wherewecanbuythepartsB.howoftenyouhearformyoursisterC.ifImayhaveawordwithyouD.whyhearrivedlateyesterday(A)2.—Whatdidheaskjustnow?—Hewondered.A.iftheywouldmeetattheschoolgateB.whenwouldtheystartC.thattheywouldtakesomefoodD.howtheywillgetthere语法精练(D)3.IwondertheideatoDaming.Hestilllooksangry.A.ifhaveyoumentionedB.whathaveyoumentionedC.whatyouhavementionedD.ifyouhavementioned(B)4.—Doyouknowwewillarriveatyourhometown?—Thisafternoon.A.whyB.whenC.ifD.where(C)5.Mygrandmotheralwaysasksme.A.whycansheusetheiPadB.howcansheusetheiPadC.howshecanusetheiPadD.whencansheusetheiPad语法精练Ⅱ.用适当的引导词填空1.—CouldyoutellmehowpeoplecelebratetheDragonBoatFestivalinChina?—Sure.Peopleusuallywatchthedragonboatracesandeatzongzi.2.—I’mwaitingforthemail.Doyouknowwhenitwillarrive?—Usuallyitcomesby4:00pm.3.—Excuseme.Iwonderif/whetherthereisabusheretogotoDowningStreet.—Yes.BusNo.223.4.—Couldyoutellmewhathesaidatthemeeting?—Sorry,Ididn’tgotothemeeting.语法精练Ⅲ.将下列句子改为含有宾语从句的复合句,每空一词1.Whendidthetrainleave?Iwantedtoknow.Iwantedtoknowwhenthetrainleft.2.Aretheremanypeopleattheparty?Ididn’tknow.Ididn’tknowif/whetherthereweremanypeopleattheparty.3.DoesitcostmuchmoneytoflytoBeijing?Couldyoutellme?Couldyoutellmeif/whetheritcostsmuchmoneytoflytoBeijing?4.WhoinventedTVset?Idon’tknow.Idon’tknowwhoinventedTVset.5.Doesthegirlneedanyhelp?Heaskedme.Heaskedmeif/whetherthegirlneededsomehelp.