2023學(xué)年完整公開課版Unit4Inventions教學(xué)

Unit4InventionsFourgreatinventionsinancientChina：compasspapergunpowderprintingPrintingandpaperhavebeeninventedinancientChina.Theyhavebeenusedforages.printingpaperWhatotherinventionsdoyouknow?Practiceinpairs.batterydigitalcameracellphonecomputercharge充電Washingmachinefridgee-bikeplaneMoreinventionstrainrobotcarMoreinventionsane-mailaletterIthink…isbetterbecause…Competition.Thinkabout:Whichdoyoulikebetter,ordinaryshoppingorshoppingonline?Why?shoppingonlineordinaryshoppingGrammarThecomparativeandsuperlativeformsofsomeadjectivesareirregular,suchas:good,bad,faradjectivecomparativesuperlativegoodbetterbestbadworseworstfarfarther/furtherthefarthest/furthestmany/muchmoremostlittlelessleastas…as結(jié)構(gòu)其基本意思為“與……一樣”，其中的第一個as為副詞，其后通常接形容詞或副詞(用原級)，第二個as可用作介詞(后接名詞或代詞)或連詞(后接從句)。使用時應(yīng)注意以下幾點。

1.

在否定句中,第一個as也可換成soHedoesn’tstudyas/sohardashisbrother.

他學(xué)習(xí)不如他弟弟努力。2.

若涉及數(shù)量或程度，可用“asmuch+不可數(shù)名

詞+as”和“asmany+復(fù)數(shù)名詞+as”。如：You’vemadeasmanymistakesasIhave.

你犯的錯誤和我犯的一樣多。Ihaven’tgotasmuchmoneyasIthought.

我不像原來想像的有那么多錢。其間接形容詞時，有時該形容詞還可修飾另一名詞，但這個名詞應(yīng)帶有不定冠詞(注意詞序)。如：Sheisasgoodateacherashermother.她和她媽媽一樣是位好老師。也可說:Sheisateacherasgoodashermother.但不說:Sheisasagoodteacherashermother.3.第二個as后接從句時，該as通常為連詞，但有時這

個as還充當(dāng)其后從句的主語或賓語，此時該as實為

關(guān)系代詞。如：Igavehimasmuchashecouldeat.

他能吃多少，我就給了他多少。We’vegotfoodforasmanypeopleaswantit.

我們的食物，無論多少人吃都夠了。4.該結(jié)構(gòu)根據(jù)情況可用使用以下修飾語。如：(not)nearly,almost,just,nothinglike,exactly,notquite,half,twice,threetimes,等，并且這些修

飾語必須置于第一個as之前，而不能置于其后。如：Hedoesn’tplayhalfaswellashissister.

他演奏的水平不及他姐姐的一半。Thisdressistwiceasexpensiveasthat.這件連衣裙比那件貴一倍。6.在非正式場合(尤其是美國英語中)，有時可以省略

第一個as。如：Whenoverforty,hemarriedawomanpooras

himself.他在40多歲時娶了一個像他本人一樣窮的女人。另外，若意思明確，有時可省略第二個as及其后

的相關(guān)詞語。如：Theradiosinthatshopwillbecheaper,butnotasgood.那家商店的收音機會便宜些，但質(zhì)量沒那么好。

1.—NeedIwashyourcarafterrepairingit？—Yes,thatwouldbemuch__.A.goodB.wellC.betterD.best2.Sheisverygoodatpainting.Shecanpaint__herteacher.A.asbetterasB.aswellas

C.asgoodasD.sowellas3.MyfriendTonyhas__hairthanIandhe's__thanI.A.long,outgong

B.morelonger,moreoutgoingC.longer,moreoutgoing

D.longer,outgoing√√√√

4.IthinkEnglishisas__aschinese.A.importantB.moreimportantC.mostimportantD.themostimportant5.Mysisterisreallygoodathighjump.Shejumps

______thantheotherstudentsinherschool.A.thehighestB.veryhighC.muchhigherD.toohigh√√√6.Shealwaysdoesherhomework____thanher

brother. A.morecarefulB.careful C.morecarefullyD.carefully7.Shelooksvery__Ithinksheneedstohavea

rest.A.tiredB.hardC.wellD.hardly8.TheairinBeijingisgettingmuch__nowthana

fewyearsago.A.cleanB.cleaner

C.cleanestD.thecleanest√√√

9.Nowadayssciencefictionisn’tas__as

cartoonsamongteenagers.A.popularB.morepopular

C.lesspopularD.themostpopular10.WearegladtoseethatShanghaiisdeveloping

___theseyearsthaneverbefore.A.quicklyB.lessquickly

C.morequicklyD.themostquickly√√

11.Jackhasthreefriends.Mikeisthe___ofthefour.A.mostcleverB.moreclever C.cleverest D.clever12.—Remember,boysandgirls.__youwork,___resultyouwillget.—Weknow,MissGao.A.Thebetter,theharderB.Theharder,thebetter C.Thehard,thebetterD.Theharder,thegood13.Theboxisvery__.Ican'tcarryit.A.heavyB.heavier C.heaviest D.heavily14.LiHua'sshoesareas__asZhangHua's.A.cheapB.cheaper C.thecheaper D.thecheapest

15.Inthepianocontest,mybrotherdidn'tplaywellandIdid__.A.verywellB.muchbetter C.verygood D.evenworse√√√√√16.NowChinahasjoinedWTO,soIthinkEnglish

is__usefulthanbefore.A.moreB.mostC.much D.many17.Mum,thisT-thirtismuchtoosmallforme.

Wouldyoubuymea__one?A.niceB.largeC.nicer D.larger√√18.Thisyearthevillagershaveproduced

__rice__theydidtwoyearsago.A.less,thanB.asless,asC.fewer,thanD.asfew,as

19.--Doyouenjoyt