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Unit4Iusedtobeafraidofthedark.知识点1Unit4Iusedtobeafraidofthedark.语法usedto的用法1.“usedtodosth”意为“过去常常做某事”，表示过去的习惯动作或状态，现在已不发生或不存在。Sheusedtobethin,butnowsheisfat.Theyoungmanusedtowearglasses,butnowhedoesn’twearglasses.2.带usedto的句子的各种句式的构成：(1)肯定句的构成是:主语+usedtodosth.Heusedtoplaybasketballafterschool.(2)否定句的构成是:主语+didn’tusetodosth.Shedidn’tusetohavelonghair.(3)一般疑问句构成是:Did+主语+usetodosth?肯定回答是：Yes,主语+did否定回答是：No,主语+didn’tDidheusetoplaythepiano?Yes,hedid/No,hedidn’t(4)反意疑问句的构成是：didn’t+主语？Sheusedtobeverythin,didn’tshe?3.妙用异同(1)usedtodosth.表示过去习惯性的动作或经常性的状态.Heusedtosmoke,didn’the?(2)beusedtodoingsth表示“习惯于做某事”Myparentsareusedtogettingupearly.(3)beusedtodosth=beusedfordoingsth是被动结构，表示“被用来做某事”Theknivesareusedtocutthings.=Theknivesareusedforcuttingthings.(1)—Wow!Youlookdifferent!Youwearglasses.—Yes,Idid.ButnowIamwearingcontactlenses(隐形眼镜)Unit4Iusedtobeafraidofthedark.知识点2A.couldB.mustC.usedtoD.would(2)WhenIwasachild,Iusedto___________strawberry.A.likingB.likeC.likedD.likes(3)___________studyinNo.4MiddleSchool?A.DidyouusedtoB.DidyouusetoC.DoyouusedtoD.Doyouuseto(4)Sheusedtowithherparents,butnowsheisusedto___withherclassmatesatschool.A.live;livingB.live;liveC.living;livingD.living;live(5)Motherusedtogrowflowersinhergarden.(改为否定句)Mothergrowflowersinhergarden.(6)Thelittlegirloftenworeaskirtinthepast.(同义句)Thelittlegirlaskirt.(7)Youusedtobeverystrong,?(完成反意疑问句)反意疑问句的用法1.含义、构成和回答①反意疑问句也叫附加疑问句,反意疑问句表示说话人对所陈述的事情有所怀疑或不肯定，想通过对方的回答来加以肯定或否定。②它的结构由两部分组成：陈述句＋简短问句。如果前一部分为肯定形式，后一部分用否定形式；前一部分为否定形式，后一部分就用肯定形式。也就是说反意疑问句要遵循“前肯后否，前否后肯”的原则。③反意疑问句的回答和一般疑问句的回答是一样的。Marylikesreading，doesn’tshe？Marydoesn’tlikereading，doesshe？Yes,shedoes.No,shedoesn’tYou’reanewstudent，aren’tyou？Youaren’tanewstudent，areyou？Yes,Iam.No,I’mnot(1)Johnhadashortwalkafterlunch,?A.didheB.didn’theC.hadheD.hadn’theUnit4Iusedtobeafraidofthedark.知识点3(2)Thereisn’tanywaterinthebottle,?A.isitB.isthereC.isn’titD.isn’tthere(3)She’scomeback,__________she?A.isB.isn’tC.hasD.hasn’t2.反意疑问句应注意三点：(1)除了no,not以外的其他否定词有never（从不）,nothing（没有什么）,few（几乎没有）,little（几乎没有）,hardly（几乎不）,seldom（不常，很少）而unhappy（不高兴的）,uncrowded（不拥挤的）,dislike（不喜欢）等不是否定词。Shehasfewfriends,doesshe?Yes,hedoes.JimnevergoestothemoviesonSaturday,?A.doesJimB.doesn’tJimC.doesn’theD.doeshe(2)祈使句的反意疑问句,一般在句末用willyou（包括以Letus开头的祈使句）;而以let’s开头的祈使句,其反意疑问句是shallwe?Let’sgooutforawalk,shallwe?Letusgooutforawalk,willyou?Don’tdrinktoomuch,willyou?You’vejustfinishedyourlisteningexam.Pleasegetyourselfreadyforthenextpart,?A.shallweB.willyouC.doyouD.areyou(3)对反意疑问句的回答,不管问题的提法如何,如果事实是肯定的,就要用yes;事实是否定的,就要用no.(1)—Hawkisn’tatschooltoday,ishe?—.Imethimintheclassroomjustnow.A.Yes,heisn’tB.Yes,heisC.No,heisn’tD.No,heis(2)—Youhaven’tbeentoSanya,haveyou?—__________.HowIwishtogothere!A.Yes,IhaveB.No,Ihaven’tC.No,IhaveD.Yes,Ihaven’tUnit4Iusedtobeafraidofthedark.知识点4(3)—Mr.Wang’sneverbeentoCanada,hashe?—.Hewentthereonbusinesslastweek.A.No,hehasn’tB.Yes,hehasC.No,hehasD.Yes,hehasn’tSectionA1.区分belike和looklike(1)belike多用于描述人的性格、品质等，也可以提问外表—What’sAlicelike?—Sheisquietandalittleshy.(2)looklike只用来描述人的长相、外貌。—Whatdoesyourfatherlooklike?—Heisverytallandfat.2.keepsilent意为“保持沉默”3.helpful意为“有用的，有帮助的”。behelpfultosb/sth“对某人/某物有帮助”Myteachergavemelotsofhelpfulbooksinmath.4.形容词/副词+enough意为“足够……的”Herunsquicklyenough.Wehaveenoughtimetodoourhomework.Thedininghallistohold(容纳)300people.A.enoughbigB.enoughsmallC.smallenoughD.bigenough5.too…to…常和not…enoughto及so…that…进行同义句转换Heistooyoungtogotoschool.=Heisn’toldenoughtogotoschool.=Heissoyoungthathecan’tgotoschool.(1)Theproblemistoodifficultformetoworkout.(改为同义句)Theproblemisn’tformetoworkout.(2)She’snotstrongenoughwalkingupmountains.A.togoB.goingC.goD.went6.fromtimetotime意为“时常，有时”Fromtimetotimehegavehimaencouragednod.7.since后接一般过去时的从句，看见since后接一般过去时的从句，要用现在Unit4Iusedtobeafraidofthedark.知识点5完成时。(1)ShehastaughtusEnglishsinceI(come)tothisschool.(2)Myuncle(teach)inthisschoolsincehewastwentyyearsold.8.辨析：become,turn,get和go(1)become通常指身份、职位的变化ShebecameanEnglishteacher.(2)turn指颜色或性质的变化Theleavesinthetreesturnyellowinautumn.(3)get多用于口语，表示一种变化的过程，强调“渐渐变得”，其后常接形容词的比较级。Thedaysaregettinglongerandlongerinsummer.(4)go指食物变质，腐烂(1)Heaplayerwhenhewas18.A.turnedB.becomesC.becameD.get(2)Thefoodbad,itsmellsterrible.A.turnsB.becomesC.goesD.get(3)Whatcanshedotofamous?A.makeB.takeC.getD.become9.(1)seesbdoingsth.意为“看见某人正在做某事”Isawhimplayingfootballontheplayground.(2)seesbdosth意为“看见某人做过了某事或看见某人经常做某事”，指看见动作发生的全过程。Isawherrunintotheroom.WhenIwalkedpastthepark,IsawsomeoldpeopleChineseTaiji.A.doB.didC.doingD.aredoing10.aneight-year-oldgirl一个八岁的女孩\atwo-monthholiday=atwomonths’holiday一个为期两个月的假期(1)We’llhaveaholiday.WhataboutgoingtotheWestLake?Unit4Iusedtobeafraidofthedark.知识点6A.twodaysB.two-dayC.two-daysD.two-days’(2)Lucyisagirl.A.13yearsoldB.13-yearoldC.13-years-oldD.13-year-old11.takeupdoingsth意为“开始做某事”。MyfathertookuplearningEnglishattheageofforty.12.dealwith“处理”常与how连用，侧重于解决问题，强调处理问题的方法。dowith“处理”一般与what搭配使用，侧重于对某物的利用。Hehaslearnedtodealwithhisproblem.Whatdoyoudowithyourcamera?(1)Howwouldyouliketodealthebrokenwindows?A.withB.onC.atD.in(2)—Manystudentsdon’tknowhowtostress