人教版英语选修6第四单元grammar课件

Unit4GlobalWarming强调句型‘it’foremphasis强调句型，你掌握了吗？Explanation•由it引导的强调句结构：•Itis(was)+被强调部分+that/who(主语是人)/whom(宾语是人)+句子其他部分•注意：此结构强调的成分仅限于主语，宾语和状语。如：•原句：Myfatherdidtheexperimentinthelabyesterdayevening．•强调主语：Itwasmyfatherwho/thatdidtheexperimentinthelabyesterdayevening．•原句：Myfatherdidtheexperimentinthelabyesterdayevening．•强调宾语：•Itwastheexperimentthatmyfatherdidinthelabyesterdayevening．•强调时间状语：•Itwasyesterdayeveningthatmyfatherdidtheexperimentinthelab．•原句：Myfatherdidtheexperimentinthelabyesterdayevening．•强调地点：Itwasinthelabthatmyfatherdidtheexperimentyesterdayevening．•原句：Myfatherdidtheexperimentinthelabyesterdayevening．•强调地点：•Itwasinthelabthatmyfatherdidtheexperimentyesterdayevening．Is/Was+it+所强调的部分+that/who+句子其他部分?问句结构：强调句型的一般疑•原句：你是8点开始工作的吗？•Didyoubegintostartat8o'clock?•强调句型：•Wasitateighto’clockthatyoubegantowork?•也就是说，强调句型疑问句原句就是一般疑问句。问句结构：强调句型的特殊疑特殊疑问词+is/was+it+that+句子其他部分?•原句：他为什么不能回答这个问题？•Whycouldhenotanswerthequestion?•强调句型：•Whywasitthathecouldn'tanswerthequestion?•注意：强调句型的特殊疑问句就是对特殊疑问词的强调,但that后的句式要用陈述句。判断是否是强调句的方法：可把Itis/was…that去掉，剩余部分在不增减任何词的情况下还是一个完整的句子，那么这种句子是强调句。Itwasbecauseshewasillthattheydidn’taskhertodothejob.→Becauseshewasill,theydidn’taskhertodothejob.ItwasinthestreetthatImetherfather.→InthestreetImetherfather.二、not...until...的强调形式:Itisnotuntil+被强调部分+that...“直到……才”主要用于强调时间状语的强调句型。原句：Ididn'trealizeshewasafamousfilmstaruntilshetookoffherdarkglasses.→ItwasnotuntilshetookoffherdarkglassesthatIrealizedshewasafamousfilmstar.每空填一词,使该句与所给句子的意思相同。1.Wedependonenergytodomanythings._____energy____wedependontodomanythings.2.Hedidn’tgotoschoolbecausehewasill.______becausehewasill______hedidn’tgotoschool.ItisthatItwasthat3.Myfatherdidn’treturnuntil11o’clocklastnight.______________11o’clock______myfatherreturnedlastnight.4.Davidboughtawalkmanfromastoreyesterday.______David_________boughtawalkmanfromastoreyesterday.ItwasnotuntilthatItwasthat/who5.Themountainclimberwasrescuedwiththehelpofthelocalpeople.______withthehelpofthelocalpeople______themountainclimberwasrescued.6.Herunclemovedoutofthecityandsettleddowninasmallvillageforthisreason._______forthisreason______herunclemovedoutofthecityandsettleddowninasmallvillage.ItwasthatItwasthat7.Whatonearthdoyouwantmetosay?______________youwantmetosay?8.Ididn’treceivethemanager’sreplyuntilnearlyamonthlater._______________nearlyamonthlater______Ireceivedthemanager’sreply.WhatisitthatItwasnotuntilthat巩固练习：1.Itwas___hesaid____disappointedme.A.what;thatB.that;thatC.what;whatD.that;what2.Isitinthefactory_____thistypeofcarsareproduced?A.whichB.whereC.thatD./3.Isitthefactory______thistypeofcarsareproduced?A.whichB.whereC.thatD./4._____onMondaynightthatallthishappened?A.IsitB.ItisC.WasitD.Itwas5.Itwas_____theoldworkercamethatwe_____theexperiment.A.until;didn’tbeginB.notuntil;beganC.untilbeganD.notuntil;didn’tbegin6.ItisI____singinginthegarden.A.whoareB.whoisC.thatamD.thatis7.---Whydidn’tyouanswerwhenIspoketoyouinthestreetthismorning?---I___butyoudidn’thearme.A.didanswerB.didn’twanttoanswerC.couldn’tanswerD.wastoobusy8.ItisinthewestofChina_____thereisnodoubt_____itisgoingtoraintomorrow.A.where;whetherB.that;thatC.that;whetherD.where;that9.Itwas1969___theAmericanastronautssucceededinlandingonthemoon.A.thatB.whenC.onwhichD.which10.Itwasthetraining_____hehadasayoungman____madehimsuchafamouswriter.A.when;thatB.that;whenC.that;whoD.that;that11.Itwasinthisvillage___Iwasboughtup.A.whereB.thatC.onwhichD.which12.Itwasthisvillage___Iwasboughtup.A.whereB.thatC.onwhichD.which13.---Wasitunderthetree___youwereawaytalkingtoafriend?---Sure.ButwhenIgotbackthere,thebikewasgone.A.thatB.whereC.whichD.whileHomework1.FinishtheexercisesonPage31inthebookofYiXianJingLian2.FinishtheexercisesonPage29inthetextbook.