【人教版】新目标八年级下册ppt课件：Unit 7 Section A-3

Unit7Whatsthehighestmountainintheworld?,SectionA3Grammarfocus-4c,Grammarfocus,1.世界上最高的山峰是哪个？珠穆朗玛峰。Whats_mountainintheworld?Qomolangma.,Fillintheblanksaccordingtothetext.,thehighest,2.珠穆朗玛峰有多高？它高8844.43米。它比别的山都高。HowhighisQomolangma?Its_.Its_thananyothermountain.,8844.43metershigh,higher,3.世界上最深的咸水湖是哪个？里海是世界上最深的咸水湖。Whichis_saltlakeintheworld?TheCaspianSeais_.,thedeepest,thedeepestofallthesaltlakes,4.你知道中国是世界上最古老的国家之一吗？我知道。中国比美国古老。DidyouknowthatChinais_intheworld?Yes,Idid.ItsmucholderthantheUS.,oneoftheoldestcountries,我们已经学习过形容词和副词的比较级和最高级的构成及基本用法。下面我们进一步学习与其相关的其他知识点。形容词和副词比较级的修饰语1.比较级前可加much,alot,abit,alittle,any,no,some,even,still等词修饰。如：Youmustworkmuchfaster.Youlookalothappierthanyoudidyesterday.Hewastootiredtowalkanyfurther.Thisbookisevenmoreusefulthanthatone.,2.比较级前还可加其他表示数量的词。如：Mysisteristenyearsyoungerthanme.Wereachedheretwodaysearlierthantheothers.形容词和副词最高级的其他用法1.形容词最高级可被second,third等序数词修饰。如：Thebuildingisthesecondtallestinthiscity.,2.形容词最高级常用于句型“oneof+the+形容词最高级+可数名词的复数形式”，意为“最之一”。如：LiuLiisoneofthemostpopulargirlsinourclass.3.形容词和副词的比较级和最高级可以互相转换。如：Janeistallerthantheothergirls/anyothergirlintheclub.=Janeisthetallestgirlintheclub.,Thiscarrunsfasterthantheotherones/anyotheroneinthegarage.=Thiscarrunsthefastestofallthecarsinthegarage.,比较级考点比较级修饰问题alittle,abit,even,still,much,alot,far等可修饰比较级。e.g.TomisalittletallerthanJim.Thisbookismuchmoreinterestingthanthatone.,中考链接,the+比较级e.g.Lucyisthefatterofthetwogirls.,“a/an+比较级”表示“又一，再一”e.g.Lilyhasadoll,butshewantsabiggerone.隐性比较（没有than的情况）e.g.Whorunsfaster,LucyorLily?Youdbettercomeearliernexttime.Heworkedhardlastterm,butheworksevenharderthisterm.,越来越.比较级+and+比较级b.the+比较级+句子，the+比较级+句子e.g.Itsgettingcolderandcolder.Themoreyouexercise,thebetteryouare.,2.最高级考点说明：形容词的最高级前必须加the；副词的最高级前省略the。范围问题e.g.Tomisthetalleststudentintheclass.Springisthebestseasonoftheyear.,“.之一”问题e.g.Beijingisoneofthebiggestcitiesintheworld.“the+序数词+最高级”e.g.Ithinkheisthesecondtallestboyinhisclass.,3.比较级和最高级的转换e.g.Tomisthetalleststudentintheclass.=Tomistallerthananyotherstudentintheclass.=Tomistallerthanalltheotherstudentsintheclass.=NootherstudentsaretallerthanTom.,总结：anyother+名词单数theother+名词复数否定+比较级=最高级比较级+极限=最高级,同级比较as+adj./adv.+ase.g.SheisasthinasLily.HewritesascarefullyasLinda.not+as/so+adj./adv.+ase.g.TonydidntrunsofastasCarter.,1.Ourfamilyhasboughtacarsowecantravel_thanbefore.mosteasilyB.lesseasilyC.easilyD.moreeasily2.Myfathertoldmeastorylastnight.Itis_oneIveeverheard.thefunniestB.funniestC.funnierD.thefunnier,学以致用,D,A,3.The_friendsyouhave,the_youwillbe.A.more,happyB.many,happyC.more,happierD.many,happier4.Whenheheardacryforhelp,heranoutas_ashecould.hardlyB.quicklyC.finallyD.slowly,C,B,5.ThisplaceisnotbigenoughforLucysbirthdayparty.Weshouldfinda_one.bigB.smallC.biggerD.smaller,C,Fillintheblankswiththecorrectformsofthewordsinthebox.,bigmuchpopularlongoldhigh,1.TheAmazonRiverisoneofthe_riversintheworld.Itsalittle_thantheYangtzeRiver.2.Qomolangmais8,844.43meters_.Itsoneofthemost_placesforseriousmountainclimbers.,longest,longer,high,popular,4a,3.Nooceanintheworldisas_asthePacificOcean.4.AlthoughJapanis_thanCanada,itis_smaller.,big,older,much,Writetwocomparisonsabouttwotopics.Writetruefacts.,Tworivers:_and_,e.g.,4b,TheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislongerthantheYangtze,buttheYangtzeRiveristhelongestriverinChina.,theYangtzeRiver,theAmazonRiver,Twocities:_and_1._2._,Twoanimals:_and_1._2._,Singapore,KualaLumpur,KualaLumpurisasmodernasSingapore.,SingaporeisbiggerthanKualaLumpurandhasalargerpopulationthanKualaLumpur.,Monkey,Dog,Adogisbiggerthanamonkey.,Amonkeyissmallerthanadog,butitclimbsatreefasterthanadog.,Writefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.,Writing,1._2._3._4._5._,e.g.,4c,Whatisthehighestbuildinginourcity?,Whatisthebusiestsubwaystationinoutcity?,Whatisthelargestshoppingmallinourcity?,Whichisthebiggestparkinourcity?,Whichisthelongestroadinourcity?,Exercises,1.Sheis_than_.A.busier/usB.busier/weC.morebusy/usD.morebusy/we2.Janeis_thanBetty.A.lesstallerB.lesstallestC.lesstallD.notastall3.Chinais_countryintheworld.A.thethirdlargestB.thelargestthirdC.thethirdlargeD.athirdlargest,A,A,A,4.Whichis_seasoninBeijing?Ithinkitsautumn.A.goodB.betterC.bestD.thebest5.Whichis_,thesun,themoonortheearth?Themoonis.A.smallB.smallerC.smallestD.thesmallest,D,D,6.IstudyEnglishas_asmybrother.A.hardB.harderC.hardest7.Whichis_,abicycleoracomp