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1、Unit7Unit7What'sthehighestmountainintheworld?SectionA11a—2d一、用英语写出下列数字：ninety-eightthousandsevenhundredandfifty-fourNinehundredandeighty-threeExercisefivehundred(and)sixty-sixsevenhundredandnine566__________________________________709_______________________
2、___________983__________________________________98,754_______________________________________________________________练一练345100118,657,421threehundredandforty-fiveonethousand(and)oneeighteenmillion,sixhundredandfifty-seventhousand,fourhundredandtwenty-one3,8
3、72Threethousandeighthundredandseventy-two46,290Forty-sixthousandtwohundredandninety58,230Fifty-eightthousandtwohundredandthirty59684,3219,648,215fivehundredandninety-sixeighty-fourthousandthreehundredandtwenty-oneNinemillion,sixhundredandforty-eightthousand
4、,twohundredandfifteenDoyouknowtheseinterestplaces?QomolangmaQomolangmarunsalongtheborderbetweenChinaandNepal.Itiscoveredwithsnowalltheyearround.It’s8844.43high,thehighestintheworld.It’s26kilometerslong.TheNileisthelongestriverintheworld.It’smorethan6600kilo
5、meterslong.Itrunsthrough9countries,it’soneofthelargestriverflowsthroughtheinternationalstatesintheworldandrunsintotheMediterraneanSea(地中海)intheend.TheNileTheCaspianSeaTheCaspianSeaisthebiggestlakeintheworld.ItliesintheborderbetweenAsiaandEurope.TheSaharaist
6、hebiggestdesertintheworld.ItislocatedinthenorthernAfrica,climateconditionsareverybad,isoneoftheearth'smostnotsuitableforbiologicalsurvival.TheSaharaTheYangtzeRiveristhethirdlongestriverintheworld,thefirstAsianrivers.It’s6211.31kilometerslong.TheYangtzeRiver
7、Basin,east-westwidthof3219kilometers,about966kilometerswidenorth-south,passingthrough11provinces.ItrunsintotheEastSeainShanghaifinally.TheYangtzeRiver中国的长城共有近一万公里，东起河北秦皇岛的山海关，西到嘉峪关，这是明代修筑长城的两个最大关口，北京境内的长城有600余公里，比较著名的有八达岭长城、金山岭长城、司马台长城、慕田峪长城、居庸关长城和箭扣长城等。The
8、GreatWallWhichisthehighestmountainintheworld?WhichisthelongestriverinAsia?...…Talkaboutthesepicturesinpairs.1aMatchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeep
