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1、Unit7Unit7What’sthehighestmountainintheworld?练一练：big--fat–thin—fast—friendly--interesting—wonderful—biggestfattestthinnestfastestfriendliest/mostfriendlymostinterestingmostwonderfulSectionA11a—2dDoyouknowtheseplaces?_____________runsalongtheborder（边界）betweenChinaandNepal（尼
2、泊尔）.Itiscoveredwithsnowalltheyearround.It’s8844.43high,thehighestintheworld.It’s26kilometerslong.Qomolangma__________isthelongestriverintheworld.It’smorethan6600kilometerslong.Itrunsthrough9countries,it’soneofthelargestriverflowsthroughtheinternationalstatesintheworldandru
3、nsintotheMediterraneanSea(地中海)intheend.TheNile__________________isthebiggestlakeintheworld.ItliesintheborderbetweenAsiaandEurope.TheCaspianSea_____________isthebiggestdesertintheworld.Itislocated（位于、坐落于）inthenorthernAfrica,climateconditionsareverybad,itisoneofthemostnotsui
4、table（适合的）forbiologicalsurvival（生物存活）.TheSahara___________________isthethirdlongestriverintheworld,thefirstAsianrivers.It’s6211.31kilometerslong.East-westwidthof3219kilometers,about966kilometerswidenorth-south,passingthrough11provinces.ItrunsintotheEastSeainShanghaifinally
5、.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“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
6、.Thewallis1.7meterswide.Explaination练一练：7615498122123486866624542137372bListenagainandfillintheblanksin2awiththenumbersinthebox.6,3005,0005,464300___TheYangtzeRiverisabout_______kilometerslongandtheYellowRiveris______kilometerslong.___Chinahasthebiggestpopulationintheworld
7、.It’salotbiggerthanthepopulationoftheUS.6,3005,464___Chinaisover______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven___yearsold.___ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.5,000300A:HowhighisQomolangma?B:It’s8,844metershigh.PracticeThebiggestdeser
8、tintheworldisabout8,000,000squarekilometersinsize.HowbigistheSahara?It’sabout8,000,000squ
