英语人教版八年级下册Unit7 SectionA（Grammar-4c）.ppt

Unit7Whatsthehighestmountainintheworld?,SectionAGrammarFocus-4c,八年级(下),Objectives,Tolearntousecomparativesandsuperlativeswithadjectivesandadverbs.Tolearnnewwords:thePacificOcean,Grammar,LanguageGoal:Talkaboutgeographyandnature,GrammarFocus,Qomolangmaishigherthananyothermountainintheworld.2)TheSaharaisthebiggestdesertintheworld.3)TheCaspianSeaisthedeepestofallthesaltlakes.4)TheNileisthelongestriverintheworld.5)Chinahasthebiggestpopulationintheworld.,1)Qomolangmais_thananyothermountainintheworld.2)TheSaharais_desertintheworld.3)TheCaspianSeais_ofallthesaltlakes.4)TheNileis_riverintheworld.5)Chinahas_populationintheworld.,Fillintheblanks.,higher,thebiggest,thedeepest,thelongest,go,Ready?,thebiggest,形容词和副词的比较级和最高级大多数形容词和副词都有三个级。原级:常用结构:as.as.像.一样e.g.ZhangHongisastallasTom.张红和汤姆一样高。2)比较级(用于两者之间的比较),常用结构：形容词比较级than.e.g.HeistallerthanI.他比我高。,Grammar,3)最高级(用于三者或三者以上的比较)，常用结构:the+形容词的最高级of/in.e.g.Heisthetallestofthethree.他是这三个人中最高的。Heisthefunniestinhisclass.他是他们班最有趣的。,形容词、副词比较级和最高级规则变化和不规则变化。规则变化1)一般情况下，单音节或双音节的形容词（或副词）比较级er，最高级est。e.g.clevercleverercleverestfewfewerfewestsmallsmallersmallest等。,2)以e结尾的词，比较级r，最高级st即可。e.g.nicenicernicestcutecutercutestlargelargerlargest3)以辅音字母y结尾的变y为ier或est。e.g.easyeasiereasiesthappyhappierhappiest再如：early,busy,heavy,dirty,lazy也如此。,4)多音节和部分双音节的词需要在形容词原级前more构成比较级，themost构成最高级。e.g.beautifulmorebeautifulthemostbeautiful又如:delicious,popular,important,creative，interesting,expensive双音节的词如:carefulmorecarefulthemostcarefulusefulmoreusefulthemostuseful,b)不规则变化：goodbetterbestwellbetterbestbadworseworstmany,muchmoremostfarfartherfarthest(距离远)farfurtherfurthest(程度深)oldeldereldest(长幼)oldolderoldest(年龄),Practice,Whowouldyouliketobeyourassistant,JackorDavid?IfIhadtochoose,Davidwouldbethe_(good)choice.2.Howwasyourmathexam,Nancy?IthinkIdiditwell,althoughitwas_(difficult)thanthelastone.,一、用括号内所给单词的适当形式填空。,better,moredifficult,3.Nowcomputersareverypopularandtheyaremuch_(cheap)thanbefore.4.Lookatthatmodelship.Oh,itlookslikearealone.Itsjustalittle_(small)thantherealone.,cheaper,smaller,二、单选。,1.Mybrotherhas_booksthanI.A.muchB.moreC.manyD.most2.Theactressisalready50,butshelooks_thanshereallyis.A.youngB.moreyoungC.moreyoungerD.muchyounger,3.Sheis_carefulasI,butIm_thanyou.A.asmuchcarefulB.somorecarefulC.asmuchmorecarefulD.soverycareful4.Mr.SmiththoughttheCenturyParkwasthesecond_inShanghai.A.largeB.largerC.largestD.verylarge,5.Wecanjump_onthemoonthanontheearth.A.morehighB.muchC.highD.muchhigher6.IthinkEnglishisas_asmaths.A.importantB.moreimportantC.mostimportantD.importanter,7.Thatbuildingisabout100meters_.A.tallB.highC.tallerD.higher8.Ourclassroomis_inthewholeschool.A.cleanestB.thecleanestC.cleanerD.thecleaner,9.Whoruns_,LilyorMichelle?A.slowB.slowerC.slowest,10.OfalltheteamsinNBA,IthinktheLosAngelesLakersplayed_thisyear.A.mostsuccessfullyB.themoresuccessfullyC.verysuccessfullyD.muchmore,1.Jack是他们班最高的男生。Jack_boy_hisclass.2.我现在感觉比昨天好多了。I_much_thanyesterday.,三、补全句子。,isthetallestin,feelbetter,1.DoesChinadevelop_(fast)ofallthecountriesintheworld?2.MybrotherJimmywrites_(careful)inhisclass.3.Whichshirtdoyoulike_(good),thewhiteoneortheblueone?4.Tomfinisheshiswork_(quick)thanJim.,1.DoesChinadevelop_(fast)ofallthecountriesintheworld?2.MybrotherJimmywrites_(careful)inhisclass.3.Whichshirtdoyoulike_(good),thewhiteoneortheblueone?4.Tomfinisheshiswork_(quick)thanJim.,1.DoesChinadevelop_(fast)ofallthecountriesintheworld?2.MybrotherJimmywrites_(careful)inhisclass.3.Whichshirtdoyoulike_(good),thewhiteoneortheblueone?4.Tomfinisheshiswork_(quick)thanJim.,fastest,themost,better,morequickly,carefully,四、用括号内所给单词的适当形式填空。,4aFillintheblankswiththecorrectformsofthewordsinthebox.,1.TheAmazonRiverisoneofthe_riversintheworld.Itsalittle_thantheYangtzeRiver.,bigmuchpopularlongoldhigh,longest,longer,2.Qomolangmais8,844.43meters_.Itsoneofthemost_placesforseriousmountainclimbers.3.Nooceanintheworldisas_asthePacificOcean.4.AlthoughJapanis_thanCanada,itis_smaller.,popular,big,older,much,high,e.g.Tworivers：_and_,4bWritetwocomparisonsabouttwotopics.Writetruefacts.,theYangtzeRiver,theAmazonRiver,TheYangtzeRiverisalmostaslongastheAmazonRiver.,TheAmazonislongerthantheYangtze,buttheYangtzeisthelongestriverinChina.,Twocities：_and_1._2._,Twoanimals：_and_1._2._,Pairwork,4cWritefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.,_,Whatisthehighestbuildinginourcity?,Whoistheoldestpeopleinourcity?,Whatisthemostpopularstreetinourcity?,Whatisthemostdeliciousfoodinourcity?,Whereisthebusiestroadinourcity?,1.WearegoingtotheGreenRestaurantforlunch.(就划线部分提问)_yougoingforlunch?2.Samistheshortestinhisclass.(改为同义句)Samis_than_studentinhisclass.Samis_than_studentsinhisclass.Samis_than_inhisclass.3.Howdoyoulike