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1、Unit7Unit7What'sthehighestmountainintheworld?SectionA11a—2dPresentationsquaren.平方metern.米deepadj.深的desertn.沙漠populationn.人口Asian.亚洲tourv.n.旅行touristn.旅行者walln.墙amazingadj.令人大为惊奇的ancientadj.古代的wideadj.宽的；宽阔的Doyouknowtheseinterestplaces?QomolangmaQomolan
2、gmarunsalongtheborderbetweenChinaandNepal.Itiscoveredwithsnowalltheyearround.It’s8844.43high,thehighestintheworld.It’s26kilometerslong.TheNileisthelongestriverintheworld.It’smorethan6600kilometerslong.Itrunsthrough9countries,it’soneofthelargestriverflo
3、wsthroughtheinternationalstatesintheworldandrunsintotheMediterraneanSea(地中海)intheend.TheNileTheCaspianSeaTheCaspianSeaisthebiggestlakeintheworld.ItliesintheborderbetweenAsiaandEurope.TheSaharaisthebiggestdesertintheworld.ItislocatedinthenorthernAfrica.
4、Climateconditionsareverybad.Itisoneoftheearth'smostnotsuitableplaceforbiologicalsurvival.TheSaharaTheYangtzeRiveristhethirdlongestriverintheworld,thefirstamongAsianrivers.It’s6211.31kilometerslong.TheYangtzeRiverpassesthrough11provinces.ItrunsintotheEa
5、stSeainShanghaifinally.TheYangtzeRiver1aMatchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershigh…8,844metershigh.…8,844米高…metershigh(long,wide…)……米高（长，宽……)。英语表示
6、“有多长（宽，高……）”时，一般将数词和数量单位放在表示长宽高的形容词前作状语。e.g.Thewallis1.7metreswide.ExplainationA:HowhighisQomolangma?B:It’s8,844metershigh.PracticeHowbigistheSahara?It’sabout8,000,000squarekilometersinsize.Howlongisthewall?It’sabout8,850kilometerslong.Whichisthehighes
7、tmountainintheworld?Howhighisit?WhichisthelongestriverinAsia?Howlongisit?...…Talkaboutthesepicturesinpairs.1bListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais___
8、_________ofallthesaltlakes.4.TheNileis_________riverintheworld.higherthebiggestthedeepestthelongest2a2bListenandnumberthefacts(1-4)intheorderyouhearthem.6,3005,0005,464300___TheYangtzeRiverisabout____kilometerslongandtheYellowRiveris__
