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1、Unit7Unit7What'sthehighestmountainintheworld?SectionA11a—1cRevisionHowtoreadthesenumbers?85274426274is__________85.85is___________274.426is__________ofall.426is_____thananyothernumbers.biggerbiggerthansmallerthanthebiggest564.78Lead-in8512,345,678,thousand
2、millionbillion大数字读法阿拉伯数字每三位数字为一段,用逗号隔开,从后往前数,所用词为thousand,million,billion。9,600,000ItistheareaofSahara.TheSaharaPresentationsquaren.平方metern.米[skweə]['mi:tə]deepadj.深的desertn.沙漠[di:p]['dezət]TheYangtzeRiver['jæŋtsi]TheYellowRiver长江黄河Qomolangma8,844.43meter
3、sHowhighisQomolangma?It’s8,844.43metershigh.['tʃəʊməʊ,la:ŋmə]TheNile6,671kilometersHowlongistheNile?It’s6,671kilometerslong.[naɪl]TheCaspianSea1,025metersdeepHowdeepistheCaspiansea?It’s1,025metersdeep.['kætspiən]TheSahara9,600,000squarekilometersHowbigisth
4、eSahara?It’s9,600,000meterssquarekilometersinsize.[sə'ha:rə]HowhighisQomolangma?It’s8,844.43metershigh.HowlongistheNile?It’s6,671kilometerslong.HowdeepistheCaspiansea?It’s1,025metersdeep.HowbigistheSahara?It’s9,600,000squarekilometersinsize.1aMatchthefacts
5、youknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershighHeight高度Length长度Depth深度Area面积Width宽度Howwideis…It’s+数字+单位词+wide.………Howhigh／tallis…Howlongis…Howdeepis…Howbigis…It’s+数字+单位词
6、+high／tall.It’s+数字+单位词+long.It’s+数字+单位词+deep.It’s+数字+单位词+insize.High多指固定物体，tall多指人或活物。黄山Huangshan庐山Lushan莲花山Lianhuashan高度：1,864meters面积:1,200squarekilometers高度：1,474meters面积：282squarekilometers高度：1,337meters面积：50squarekilometersHuangshanmountainis_________
7、_mountainofthethree.Huangshanmountainis__________theothertwomountains.thehighestbiggerthanTheYangtzeRiverTheYellowRiverTheHuaiRiver全长：6,300kilometers全长：5,464kilometers全长：1,000kilometersTheYangtzeRiveris__________river.It’s__________anyotherriversinChina.th
8、elongestlongerthanTheHuaiRiveris____________riverofthethree.It’s____________theothertworivers.thesmallestsmallerthan1bListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaha
