八年级下册英语unit7 section a 4a-4cppt课件

Unit7,SectionAGrammarfocus-4c,oceanthePacificOcean,n.大海；海洋n.太平洋,Wordsreview,Review,Canyoutranslatethefollowingsentences?,长江大约长6,300千米。,TheYangtzeRiverisabout6,300kilometerslong.,Review,Canyoutranslatethefollowingsentences?,黄河长5,464千米。,TheYellowRiveris5,464kilometerslong.,Review,Canyoutranslatethefollowingsentences?,明朝的长城大约有8,850千米长。,TheGreatWallinMingdynastyisabout8,850kilometerslong.,Review,Canyoutranslatethefollowingsentences?,珠穆朗玛峰高8,844.43米，所以攀登起来很危险。,Qomolangmais8,844.43metershighandsoisverydangeroustoclimb.,TheYangtzeRiverisabout6300kilometerslong.,TheYellowRiveris5464kilometerslong.,TheGreatWallinMingdynastyisabout8,850kilometerslong.,Qomolangmais8,844.43metershighandsoisverydangeroustoclimb.,Whatcanyougetfromtheabovefoursentences?,Nowletstrytotranslatethesentencesbelow:,那个篮球运动员有两米高。那条河只有两米深/宽。这棵树有两米高。那条河长两千米。,Thebasketballplayeristwometerstall.,Theriverisonlytwometersdeep/wide.,Thetreeistwometerstall.,Theriverisabouttwokilometerslong.,5.这座山大约有两千米高。6.这个箱子大约有两米高/宽/长。,Themountainisabouttwothousandmetershigh.,Theboxisabouttwometershigh/wide/long.,以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解，下面就让我们根据之前练习的考察情况进一步选择讲解该语法项的重难点。,长度、宽度、高度、深度的表示法,老虎路有200米长，而且湿度很重。TigerPathis200meterslongandhasahighhumidity.,长度、宽度、高度、深度的表示法，有一个专门的结构，那就是“基数词+单位名词+形容词”,Practise,我们走上三层楼，大概10米左右高。Wewalkupthreefloors,whichisabouttenmetershigh.那面镜子有两米长。Themirroristwometerslong.,教室有25英尺长，20英尺宽。Theclassroomwas25feetinlengthand20feetinwidth.,2.除了以上的表示方法，有时也可以用“基数词+单位词+in+长度或者重量的名词”来表示长度、宽度、高度、深度。若表示重量，可以用inweight结构。,Practise,这个箱子重9公斤。Theboxis9kilos.=Theboxis9kilosinweight.那座桥有三米高。Thebridgeis3metersinheight.,Grammar,1)Qomolangmaishigherthananyothermountainintheworld.2)TheSaharaisthebiggestdesertintheworld.3)TheCaspianSeaisthedeepestofallthesaltlakes.4)TheNileisthelongestriverintheworld.5)Whatsthehighestmountainintheworld?,6)Chinahasthebiggestpopulationintheworld.7)ItsalotbiggerthanthepopulationoftheUS.8)Chinaisover5000yearsold.IthasamuchlongerhistorythantheUS.9)ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.,10)-DidyouknowthatChinaisoneoftheoldestcountriesintheworld?-Yes,Idid.Itsmucholderthanmycountry.11)Thismakesitthelongestwallintheworld.12)Itsthemostfamouspart.13)Oneoftheworldsmostdangeroussportsismountainclimbing,andoneofthemostpopularplacesforthisistheHimalayas.,1)Qomolangmais_thananyothermountainintheworld.2)TheSaharais_desertintheworld.3)TheCaspianSeais_ofallthesaltlakes.4)TheNileis_riverintheworld.5)Whats_mountainintheworld?,Fillintheblanks.,higher,thebiggest,thedeepest,thelongest,thehighest,go,Ready?,6)Chinahas_populationintheworld.7)Itsalot_thanthepopulationoftheUS.8)Chinaisover5000yearsold.Ithasa_historythantheUS.9)Chinaisalmostas_astheUS,anditisthe_countryinAsia.,thebiggest,bigger,muchlonger,big,biggest,10)-DidyouknowthatChinaisoneof_countriesintheworld?-Yes,Idid.Its_thanmycountry.11)Thismakesit_wallintheworld.12)Its_part.13)Oneoftheworlds_sportsismountainclimbing,andoneof_placesforthisistheHimalayas.,theoldest,mucholder,thelongest,themostfamous,mostdangerous,themostpopular,Practice,Fillintheblankswiththecorrectformsofthewordsinthebox.,4a,bigmuchpopularlongoldhigh,TheAmazonRiverisoneofthe_riversintheworld.Itsalittle_thantheYangtzeRiver.Qomolangmais8,848.43meters_.Itsoneofthemost_placesforseriousmountainclimbers.,longest,longer,high,popular,bigmuchpopularlongoldhigh,3.Nooceanintheworldisas_asthePacificOcean.4.AlthoughJapanis_thanCanada,itis_smaller.,big,older,much,Writetwocomparisonsabouttwotopics.Writetruefacts.,4b,Twocities:,SingaporeandKualaLumpur.,KualaLumpurisasmodernasSingapore.SingaporeisbiggerthanKualaLumpurandhasalargerpopulationthanKualaLumpur.,Twoanimals:,MonkeyandDog,Adogisbiggerthanamonkey.Amonkeyissmallerthanadog,butitclimbsatreefasterthanadog.,Pairwork,4c,Writefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.,Whatisthehighestbuildinginourcity?Whatisthelargestshoppingmallinourcity?Whichisthebiggestparkinourcity?Whichisthelongestroadinourcity?WhatsthebiggestcityinChina?.,以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解，下面就让我们根据之前练习的考察情况进一步选择讲解该语法项的重难点。,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.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.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如：clevercleverercleverestfewfewerfewestsmallsmallersmallest等。,2)以e结尾的词，比较级r，最高级st即可。如：nicenicernicestcutecutercutestlargelargerlargest3)以辅音字母y结尾的变y为ier或est如:easyeasiereasiesthappyhappierhappiest再如：early,busy,heavy,dirty,lazy也如此。,4)双写最后一个辅音字母er或est的词,同学要用心去记。fatfatterfattest2.thinthinnerthinnest3.hothotterhottest4.redredderreddest5.wetwetterwettest6.bigbiggerbiggest,5)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。如：beautifulmorebeautifulthemostbeautiful又如:delicious,popular,important,interesting,expensive,creative双音节的词如:carefulmorecarefulthemostcarefulusefulmoreusefulthemostuseful,少数单音节词也是这样，如：pleasedmorepleasedthemostpleasedtiredmoretiredthemosttiredb)不规则变化：goodbetterbestwellbetterbestbadworseworstmany,muchmoremostfarfartherfarthest(距离远)farfurtherfurthest(程度深)oldeldereldest(长幼)oldolderoldest(年龄),Review,课时重点回顾,形容词及副词的原级、比较级和最高级。,Whowouldyouliketobeyourassistant,JackorDavid?IfIhadtochoose,Davidwouldbethe_(good)choice.2.Howwasyourmathexam,Nancy?IthinkIdiditwell,althoughitwas_(difficult)thanthelastone.,I.用括号内所给单词的适当形式填空。,better,moredifficult,3.Didyouhaveawonderfultimeattheparty?Yes,itsthe_(exciting)oneIveeverbeento.IdliketoknowifLindaisthesecond_(tall)girlinherclass.,mostexciting,tallest,5.Nowcomputersareverypopularandtheyaremuch_(cheap)thanbefore.6.Lookatthatmodelship.Oh,itlookslikearealone.Itsjustalittle_(small)thantherealone.,cheaper,smaller,II.Multiplechoice,1.Mybrotherhas_booksthanI.A.muchB.moreC.manyD.most2.Themoreyousmile,the_youwillfeel.A.happyB.happierC.happilyD.morehappily,3.Wouldyoumindstayinginsuchanoisyroom?No,butmysonneedsa_placetostudyin.A.cleanerB.quieterC.saferD.smaller4.Theactressisalready50,butshelooks_thanshereallyis.A.youngB.moreyoungC.moreyoungerD.muchyounger,5.Sheis_carefulasI,butIm_thanyou.A.asmuchcarefulB.somorecarefulC.asmuchmorecarefulD.soverycareful6.MrSmiththoughttheCenturyParkwasthesecond_inShanghai.A.largeB.largerC.largestD.verylarge,7.Wecanjump_onthemoonthanontheearth.A.morehighB.muchC.highD.muchhigher8.Whenheheardthegoodnews,hefelt_.A.happierB.happiestC.happyD.happily,9.The_heis,the_hefeels.A.busy;happyB.busiest;happiestC.busier;happierD.busy;happily10.IthinkEnglishisas_asmaths.A.importantB.moreimportantC.mostimportantD.importanter11.Whatdoyouthinkofthedress?Wonderful.IdontthinkIcanfinda_one.A.goodB.betterC.badD.worst,12.Thatbuildingisabout100meters_.A.tallB.highC.tallerD.higher13.JoneSmithis_ofthetwoyoungmen.A.strongB.strongerC.thestrongerD.thestrongest14.Ourclassroomis_inthewholeschool.A.cleanestB.thecleanestC.cleanerD.thecleaner,15.Iknowyouareshorterthanyourbrothers，butyourun_.A.morefasterB.fastestC.morefastD.fast16.Whoruns_,LilyorMichelle?A.slowB.slowerC.slowest,17.OfalltheteamsinNBA,IthinktheLosAngelesLakersplayed_thisyear.A.mostsuccessfullyB.themoresuccessfullyC.verysuccessfullyD.muchmore,1.Jack是他们班最高的男生。Jack_boy_hisclass.2