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一基本结构：Itis(was)+被强调部分+that（强调部分是人时也可用who/whom）+其他成分二、强调句型的判断把“It,be，that”去掉，如果剩余部分句子结构仍然完整（被强调部分要还原到原位置），那么这个句子就是强调句；如果句子不完整，则不是强调句。如：（1）①Itishewho/thatoftenhelpsmewithmyEnglish.②Itisonthehillsidethatweplanttreeseveryyear.③Itwasbecauseofbadweatherthatthefootballmatchhadtobeputoff.④Itwas9o'clockwhenwecameback．我们回来时是九点钟。⑤Itwas3hourssincewehadcomeback．我们回来已三个小时了。2）①Itwasatthetheatre_________Lincolnwasmurdered.Itwasthetheatre_________Lincolnwasmurdered.A.whichB.thatC.whereD.theoneCB②Itwasourteacher________didtheexperimentinthelablastnight.A.whomB.thatC.whichD.where③Itwastenyearsago________MissGaoreturnedtoChina.A.thatB.whenC.sinceD.as④Itwas________hesaid______disappointedme.(Shanghai'99)A.what;thatB.that;thatC.what;whatD.that;what⑤Itwasforthisreason________herunclemovedoutofNewYorkandsettleddowninasmallvillage.(Shanghai2001,spring)A.whichB.whyC.thatD.howBAACA三、强调句型注意事项1.句首词用“It”，不能用“This”，“That”等。2.be动词的形式是is或was，不能用复数形式are或were。若原句的谓语动词用了现在时或将来时，则用is;若原句的谓语动词用了过去时或过去完成时，则用was.(3)It___theChinesewomenthat___agreatroleinthesocialistconstruction.Ais;playsBare;playCis;playDare;plays(4)___alltheseexercises____allofuscandotomorrow.AItis;thatBItwas;thatCTheyare;whichDItwillbe;that3.被强调的部分如果是代词，强调主语用主格，强调宾语用宾格。(5)Itishimthat/who/whomImetinthestreetyesterday.(6)ItisIwho/thatamwrong.C4.连接词一般用that，当强调部分是人时，既可用that也可用who.特别注意当强调部分是时间状语或地点状语时，不能用when或where。7）◆ItwasonOct1st,1949thatPeople’sRepublicofChinawasfounded.◆Itwasatthegate________hetoldmethenews.A.thatB.whatC.whichD.when5.主谓一致问题被强调的主语要和that后面的谓语动词在数上保持一致8）ItisMarywhooften_____(help)mewithmyEnglish.9）ItisIthat____(be)againstyou.10）ItistheboystudentsofClassTwowho___(be)playingfootballontheplayground.11）ItisMrGreen,togetherwithhiswifeandchildren,that____inChinanow.AareBisCwasDwere12)Itwasneitheryounorhethat___toblameforthemistake.AhelpsamareBC6.not…until结构的强调：强调“not…until”引导的时间状语时，要用“itis/wasnotuntil…that…”结构,，that后面的句子要用肯定式，且须用陈述句语序。13)Wedidnotgetoffthebusuntilitstopped.Itwasnotuntilitstoppedthatwegotoffthebus.(注意：强调该结构时notuntil不能分开)14)Itwasnotuntil1920___regularradiobroadcastbegan.A.whileB.whichC.thatD.sinceC15)Itwasnot____shetookoffherdarkglasses____Irealizedshewasafamousfilmstar.A.when;thatB.until;thatC.until;whenD.when;thenB16)Itwas________backhomeaftertheexperiment.A.notuntilmidnightdidhegoB.untilmidnightthathedidn'tgoC.notuntilmidnightthathewentD.untilmidnightwhenhedidn'tgoC17)Itwasnotuntil_____that____topreparehislessons.A.didhisfathercomein;theboybeganB.hisfathercamein;theboybeganC.didhisfathercomein;didtheboybeginD.hisfathercameindidtheboybegin18)Notuntil_________topreparehislessons.B注意:18)是not…until的另一种强调形式：Thevillagersdidn’trealizehowseriousthepollutionwasuntilallthefishdiedintheriver.DItwasnotuntilallthefishdiedintheriverthatthevillagersrealizedhowseriousthepollutionwas.Notuntilallthefishdiedintheriverdidthevillagersrealizehowseriousthepollutionwas.7.疑问句的强调结构：一般疑问句：Is/Was+it+that+句子的其他部分（陈述语序）。简单的答语为：“Yes,itis/was.”或“No,itisn’t/wasn’t.”(19)----Was___thatIsawlastnightattheconcert?----No,itwasn’t.A.ityouB.notyouC.youD.thatyourself(21)Wasitin1969________theAmericanastronautsucceeded________landingonthemoon?A.when;onB.that;onC.when;inD.that;inADWheredidyouseehercellphoneyesterday?Wherewasitthatyousawhercellphoneyesterday?（强调特殊疑问词where）8.特殊疑问句：特殊疑问词+is/was+it+that+句子的其他部分（陈述语序）。Howwillyougotovisithertomorrow?Howisitthatyouwillgotovisithertomorrow?（强调特殊疑问词how）22)Ireallydon’tknow_____Ihadmymoneystolen.AwhereisitthatBwhenitisthatCwhereitwasthatDitwaswherethatC23)____findmywallet,Tom?A.WheredidyouthatB.WherewasityouC.WherehaveyouD.WherewasitthatyouD24).Wherewasit________youfoundthelostchild?A.whoB.thatC.whichD.whatB9.从句的强调：25）Icamehomelatebecauseitwasraininghard.ItwasbecauseitwasraininghardthatIcamehomelate.(强调状语从句)（注意：被强调的原因状语从句只能用because引导，不能用as或since引导)26)Whatyousaidreallymadeussad.Itwaswhatyousaidthatreallymadeussad.(强调主语从句)(28).ItwasonlywhenIrereadhispoemsrecently________Ibegantoappreciatetheirbeauty.(NMET'98)A.untilB.thatC.thenD.so(29)_____thepeople____havebecomethemastersoftheircountry_____sciencecanreallyservethepeople.A.Itisonlywhen;that;whereBTheyare;/;whenC.Itisonlywhen;/;thatDItwaswhen;that;thenCB(27)Itwashowtheyoungmanhadlearnedfiveforeignlanguages______attractedtheaudience'sinterest.(Shanghai2000,spring)A.sothatB.thatC.whatD.inwhichBItwaswheretherehadbeenatheatrethattheybuiltanewmodernschool．他们是在以前曾有过一个剧场的地方建造了一所新的现代化学校。10.强调时间状语和地点状语时与定语从句的区别：30）Itwasin1921_____ourPartywasfounded.31）Itwas1921_______ourPartywasfounded.32)Itwasonthefarm________wepractisedplantingcrops.=Wepractisedplantingcropsonthefarm.33)Itwasthefarm_________welearnedalot.34)Itwasatthestreetcorner_____ImetLucyyesterday.=ImetLucyatthestreetcorneryesterday35)Itwasthestreetcorner_______ImetLucyyesterday.(36)Wasitinthispalace________thelastemperordied?A.thatB.inwhichC.inwhereD.whichA强调句式定语从句thatwhenthatwherethatwhere