八年级下-unit-7-section-a.ppt

,Unit7Whatsthehighestmountainintheworld?,SectionA(1a-2c)ByGuoLiongqiong,Qomolangma,TheNile,theCaspianSea,theSahara,HowhighisQomolangma?,Its8,844.43metershigh.Itsthehighestmountainintheworld.,HowlongistheNile?,Its6,671kilometerslong.Itsthelongestriverintheworld.,TheNile,HowdeepistheCaspianSea?,Its1,025metersdeep.Itsthedeepestofallthesaltlakes.,TheCaspianSea,HowbigistheSahara?,Itsabout9,600,000squarekilometersinsize.Itsthebiggestdesertintheworld.,TheSahara,Howtoreadbignumbers?,000,000,000,000,1,300,000,000,Whichisthehighestmountainintheworld?Howhighisit?,Talkaboutthesepicturesinpairs.,Practiceinpairslikethis:A:What/Whichistheinthe?B:A:Howhigh/long/deep/bigisit?B:,Practice,Discussion(KnowaboutChina),WhichisthelongestriverinChina?WhichisthesecondlongestriverinChina?HowlargeisChina?WhatsthepopulationofChina?HowoldisChina?,theYangtzeRiver,theYellowRiverthesecondlongestriverinChina,Listening,2aListenandnumberthefacts(1-4)intheorderyouhearthem.,6,3005,0005,464300,_TheYangtzeRiverisabout_kilometerslongandtheYellowRiveris_kilometerslong._Chinahasthebiggestpopulationintheworld.ItsalotbiggerthanthepopulationoftheUS._Chinaisover_yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_yearsold._ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.,4,2,1,3,2bListenagainandfillintheblanksin2awiththenumbersinthebox.,6,3005,0005,464300,_TheYangtzeRiverisabout_kilometerslongandtheYellowRiveris_kilometerslong._Chinahasthebiggestpopulationintheworld.ItsalotbiggerthanthepopulationoftheUS.,6,300,5,464,_Chinaisover_yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_yearsold._ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.,5,000,300,Chinaisgreat.WeareproudofChinese.WeloveChina.,CompareChinawithAmerica,olderthan,asbigas,biggerthan,Summary,Knowthetopoftheworld.Howtoreadbignumbers.Whatsthepopulationof?询问人口数量用“what”不能用“howmany.形容人口的“多”或“少”用large/bigorsmall.,最高级,比较级,原级句型,1.the+最高级+单数名词+比较范围=比较级+than+anyother+单数名词+比较范围2.be+oneofthe+最高级+复数名词+比较范围3.the+序数词+最高级+单数名词4.比较级+than4.as+原级+as,Exercise,1.isthepopulationofChinatoday?A.HowmuchB.HowmanyC.WhatD.Which2.Billjumpedthananyotherplayeratthesportsmeeting.A.tallB.tallestC.highD.higher3.Chinaiscountryintheworld.A.thethirdlargestB.thelargestthirdC.thethirdlargeD.athirdlargest,C,D,A,4.BeijingisoneofinChina.A.thebiggestcityB.thebiggestcitiesC.thebigestcitiesD.biggestcities5.Canyouwritethenumbereighty-fivethousand,sixhundredandtwenty-six?A.85,662B.58,626C.58,662D.85,626,B,D,1aMatchthefactsyouknow.,1bCompletethesentences.,1.Qomolangmais_thananyothermountainintheworld.2.T