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1、Unit7What'sthehighestmountainintheworld?It’stheworld’shighestmountainintheworld.-Howhighisit?-Itis8,844metershigh.QomolangmaDoyouknowtheseinterestplaces?QomolangmaQomolangmarunsalongtheborderbetweenChinaandNepal.Itiscoveredwithsnowalltheyearround.It’s8844.
2、43high,thehighestintheworld.It’s26kilometerslong.TheNile-Howlongisit?-Itis6,671kilometerslong.It’sthelongestriverintheworld.TheNileisthelongestriverintheworld.It’smorethan6600kilometerslong.Itrunsthrough9countries,it’soneofthelargestriverflowsthroughtheint
3、ernationalstatesintheworldandrunsintotheMediterraneanSea(地中海)intheend.TheNileIt’stheworld’sdeepestsaltlake.TheCaspianSeaHowdeepistheworld’sdeepestsaltlake?Itis1,025metersdeep.TheCaspianSeaTheCaspianSeaisthedeepestsaltlakeintheworld.Itliesintheborderbetween
4、AsiaandEurope.HowbigistheSahara?Itisabout9,600,000squarekilometersinsize.SaharaItisthebiggestdesertintheworld.TheSaharaisthebiggestdesertintheworld.ItislocatedinthenorthernAfrica,climateconditionsareverybad,isoneoftheearth'smostnotsuitableforbiologicalsurv
5、ival.TheSaharaIt’sthelongestriverinAsia.TheYangtzeRiver-___________istheYangtzeRiver?-Itis6,300kilometerslong.TheYangtzeRiveristhethirdlongestriverintheworld,thefirstAsianrivers.It’s6211.31kilometerslong.TheYangtzeRiverBasin,east-westwidthof3219kilometers,
6、about966kilometerswidenorth-south,passingthrough11provinces.ItrunsintotheEastSeainShanghaifinally.TheYangtzeRiverIt’sthesecondlongestriverintheworld.-Howlongisit?-It’sabout6,500kilometerslong.Amazon1aMatchthefactsyouknow.Practiceinpairslikethis:A:Whichisth
7、e…inthe…?B:…Practice…8,844metershigh.…8,844米高…metershigh(long,wide…)……米高（长，宽……)。英语表示“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.PracticeThebiggestdesertintheworldisabout8,000,00
8、0squarekilometersinsize.HowbigistheSahara?It’sabout8,000,000squarekilometersinsize.1bListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais____________desertintheworld.
