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1、Unit7What'sthehighestmountainintheworld?SectionA1a—1c普定县第四中学：周开华人教版新目标英语八年级（下）第七单元第一课时Presentationsquaren.平方metern.米desertn.沙漠deepadj.深的Iamtallerthanhim.Heisthetallestofus.LongFengjieisthetallestboyinourclass.Teacher'sdeskistheheaviestthinginourclassroom.YelanglakeisthebiggestlakeinPu
2、ding.Qomolangmaisthehighestmoutainintheworld.It’s8844.43metershigh,It’s26kilometerslong.QomolangmaTheSaharaisthebiggestdesertintheworld.Itisabout9600000squarekilometresinsize.TheSaharaTheCaspianSeaisthedeepestsaltlakeintheworld.Itis1025metresdeep.TheCaspianSeaTheNileisthelongestriveri
3、ntheworld.It’s6671kilometerslong.TheNileTheYangtzeRiveristhethirdlongestriverintheworld.It’s6211.31kilometerslong.TheYangtzeRiver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。Explaination数词+数量单位复数+adj(long、deep、high)e.g.Thewallis1.7metreswide.trillionthousandkey英语中巨型数词的读法解析999,121,141,435,678billionmilli
4、onNinehundrednintyninetrilliononehundredtwentyonebilliononehundredfortyonemillionfourhundredthirtyfivethousandsixhundredseventyeight百万位的读法1000000---1,000,000onemillion1111111---1,111,111onemilliononehundredeleventhousandonehundredandeleven1000001---onemillionandone千万和亿的读法21,435,678---
5、-twomillionfourhundredthirtyfivethousandsixhundredseventyeight111,121,435,678----onehundredelevenbilliononehundredtwentyonemillionfourhundredthirtyfivethousandsixhundredseventyeightWhichisthehighestmountainintheworld?HowhighisQomolangma?Qomolangma8844.43metershighWhatisthebiggestdeser
6、tintheword?HowbigisTheSahara?TheSaharaabout9600000squarekilometresWhatisthedeepestsaltlakeintheworld.HowdeepisTheCaspianSea?TheCaspianSea1025metersdeepWhatisthelongestriverintheworldHowlongisTheNile?TheNile6,671kilometerslongWhichisthelongestwallintheworld?HowlongisTheGreatWall?TheGre
7、atWallabout8,850kilometerslong1aMatchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershigh1bListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais_________
8、___de
