九年级英语:Unit 4 Inventions and Inventors复习课件(北师大版)

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1、一、本周教学重点:1.复习被动语态2.情态动词表达怀疑、确定和可能。3.重点词汇二、具体内容:(一)被动语态:1.一般现在时被动语态基本结构:主语am/is/are过去分词Thefoodisplacedintheoven.Theyareturnedintoheat.2.一般过去时被动语态基本结构:主语was/were过去分词MagicSquareswereinventedinChina.PapermakingwasintroducedintoJapanin610.3.情态动词被动语态基本结构:主语can/should/mustbe过去分词Schooluniformmustbewornatall

2、times.4.一般将来时被动语态基本结构:主语willbe过去分词Itcantbearadiobecauseitstoobigtobearadio.Thereportwill_(finish)intwodaystime.Milkshould_(keep)inthefridge.Whiteclothesandcoloredclothesshouldnot_(wash)together.Schooluniformsneednt_(wear)atalltimes.(二)情态动词:当不是很确定时,用might或may.(might比may更不确定)Whoknowswhatwillhappen.You

3、mayevenhavemarriedbythen.Itmightbeatoolforcuttingthings.Idontknow.当确定某件事是唯一的可能时,用must.Itmustbesomesortoftoy.当确信不可能发生时,用cannot.Itcannotbearadiobecauseitstoobigtobearadio.Ex.Completethesentenceswithmightbe/maybe,cannotbe,ormustbe.1.Thisexam_toodifficultforthestudents.Idontthinktheycanfinishit.2.It_abo

4、okforchildren.Therearemanycartoonsinit.3.It_true.Ithinkyoumadeamistake.4.Mr.Smith_inLondon,Paris,orTokyo.Nooneknowsforsure.5.That_John.HeisinNewYorknow.6.Didyouhearthedoorbell?It_Nicholas.Iamexpectinghim.(三)重点词汇:1.Inmanybigcitiesintheworld,theoveruseofcarsisthoughttobeoneofthemajorcausesofairpolluti

5、on.over名词/形容词,表示“过多,过于”Theover-loadtruckcausedaseriousroadaccident.Shealwaysworksovertime,soshehastoleaveherbabycaredforbyhermother.bethoughttobe被认为,被看作Sheisthoughttobethetopstudentinourclass.Janeisthoughttobebusypreparingfortheexam.2.Howeverwearealsowarnednottoaskforprettycolors,becausethecarwillco

6、meingrayonly.warnNoonewarnedhimofthedanger.Iwarnedhernottogetclosetothedogbutshewouldnthearofit.3.Otherexpertsaresurethatthefuturewillbehappy.besurethatIamsurethatsmokingwillhurtyou.AreyousurethatJohnwillcomethisafternoon?4.Ifgasisinshortsupply,thesupercarwillrunonwater.beinshortThecheaperitis,thebe

7、tter.Imshortofmoney.on靠Hefindsitdifficulttoliveonhissalary.Theylivemostlyonvegetablesfromtheirgarden.5.Asarule,softfruitslikestrawberries,etc,aredifficulttofreeze.asarule一般来说,通常是Asarule,shegoesoutearlyeveryeveninglookingforwork.Asarule,wegethomeat6.6.Yeout开花,出版,退色,计算出来Thismagazinecomesoutmonthly.Som

8、eflowershavebeguntocomeout.Iwashedtheshirttwicebuttheinkstillhasntcomeout.7.observe观察Iobservedaletteronthetable.Didyouobserveanythingstrangeinthatboysbehavior?课堂练习I.单选。1.Haveyoueverthiskindofmooncakes?A.eatB.eatsC.eatingD.eaten2.Theknivesareusedcuttingthings.A.inB.toC.forD.of3.Theyareusedforthestyle

9、ofashoe.A.changeB.changesC.changingD.changed4.MustIstayathome,Mum?-No,you.A.needntB.mustntC.dontD.maynot5.Sheaskedthemthingsabout.A.nottolitterB.dontlitterC.notlitterD.nolitter6.Imnotsurehewillcomebackhometomorrowornot.A.whenB.whatC.whetherD.where7.Look.Thesebedinosaureggsbecausetheyarethebiggestofa

10、ll.A.mustB.canC.shouldD.may8.Iwastoldtotakeumbrellawithme.-Oh,no.lookatthesky.Itssunnyandrain.A.mustB.cantC.mayD.neednt9.Thelightintheofficeisoff.Theteacherbetherenow.A.mayB.cantC.mustntD.mustII.完成句子:1.警察阻止孩子们在街上玩耍。Thepolicemanstoppedthechildreninthestreet.2.去年他去日本学医。Lastyear,hewenttoJapan.3.她每天早起以便能读英语。ShegetsupearlyeverydayshecanreadEnglish.III.连词成句1.Themoney/count/everyevening_2.Thechildren/takecareof/inthekindergarten_3.English/speak/everywhere_

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