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1、Unit7What'sthehighestmountainintheworld?SectionA(1a-2c)ByGuoLiongqiongQomolangmaTheNiletheCaspianSeatheSaharaHowhighisQomolangma?It’s8,844.43metershigh.It’sthehighestmountainintheworld.HowlongistheNile?It’s6,671kilometerslong.It’sthelongestriverintheworld.TheNileHowdeep
2、istheCaspianSea?It’s1,025metersdeep.It’sthedeepestofallthesaltlakes.TheCaspianSeaHowbigistheSahara?It’sabout9,600,000squarekilometersinsize.It’sthebiggestdesertintheworld.TheSaharaHowtoreadbignumbers?000,000,000,000thousand(千）million（百万）billion（十亿）1,0256,6719,600,0008,8
3、44.431,300,000,000Whichisthehighestmountainintheworld?Howhighisit?Talkaboutthesepicturesinpairs.Practiceinpairslikethis:A:What/Whichisthe…inthe…?B:…A:Howhigh/long/deep/bigisit?B:…PracticeDiscussion(KnowaboutChina)WhichisthelongestriverinChina?Whichisthesecondlongestrive
4、rinChina?HowlargeisChina?What’sthepopulationofChina?HowoldisChina?theYangtzeRivertheYellowRiverthesecondlongestriverinChinaListening2aListenandnumberthefacts(1-4)intheorderyouhearthem.6,3005,0005,464300___TheYangtzeRiverisabout____kilometerslongandtheYellowRiveris___kil
5、ometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.___Chinaisover___yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven___yearsold.___ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.42132bListenagainandfillinthebla
6、nksin2awiththenumbersinthebox.6,3005,0005,464300___TheYangtzeRiverisabout_______kilometerslongandtheYellowRiveris______kilometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.6,3005,464___Chinaisover______yearsold.Ithasamuchlonger
7、historythantheUS.TheUSisnoteven___yearsold.___ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.5,000300almostsizemuchagealotpopulationChinaisgreat.WeareproudofChinese.WeloveChina.CompareChinawithAmericaolderthanasbigasbiggerthanSummaryKnowthetopoftheworld.Howtor
8、eadbignumbers.What’sthepopulationof…?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.th
