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1、Unit7What'sthehighestmountainintheworld?SectionA1a—1c香格里拉市第一中学和芳squaren.平方/skwer/Newwordsmetern.米/ˈmi:tə(r)/deepadj.深的/di:p/desertn.沙漠/ˈdezərt/Qomolangma/ˈtʃoʊmoʊˌlɑːŋmə/珠穆朗玛峰theSahara/sə'hɑ:rə/撒哈拉沙漠theCaspianSea/ˈkæspiən/里海theNile/nail/尼罗河形容词或副词的比较级比较
2、级：两个人或物之间的比较。表示“较……”或“更……一些”。标志词：形容词和副词的最高级的构成单音节词通常是-er结尾；多音节或部分双音节词通常在之前加more.than(比）形容词或副词的最高级最高级表示“最……”，表示三者或三者以上(人或物)进行比较，其中有一个在某一方面超过其他几个。形容词和副词的最高级的构成一般情况下，形容词和副词的最高级的规则变化是在词尾加或在其前加构成，不规则变化则要牢记。-estmostHowhighisQomolangma?It’s8,844.43metershigh.
3、AskandanswerIknowit’sthe________mountainintheworld.highest8,844.43Canyoureadthesenumbers:100,100,100,101Eightthousandeighthundredandforty-fourpointfourthree9,600,000NinemillionsixhundredthousandOnehundredbilliononehundredmilliononehundredthousandonehun
4、dredandoneIcanreadlargenumbers.从右往左，三个数为一个单位用逗号隔开，第一个逗号读.第二个逗号读作，第三个逗号读作，thousandmillionbillion小数点读作。pointHowlongistheNile?It’smorethan6,600kilometerslong.Iknowit’sthe________riverintheworld.longest1,025metersdeepthedeepestIknow________________________
5、_______.it’s1,025metersdeep,it’sthedeepestofallthesaltlakes.theCaspianSeatheSahara9,600,000squarekilometersbiggestIknow_______________________________.it’s9,600,000squarekilometersinsize,it’sthebiggestdesertintheworld.It’s8,844metershigh.它有8,844米高。表示物体
6、长，宽，高,深的方法：基数词+单位名词+long/wide/tall/deep5米深fivemetersdeep3米宽threemeterswide1aMatchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershighis1bListenandcompletethesent
7、ences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais____________ofallthesaltlakes.4.TheNileis___________riverintheworld.higherthebiggestthedeepestthelongestanyother+n单数A:Whatisthehighestmo
8、untaininYunnan?B:MeiliSnowmountain.A:Howhighisit?B:Itis6,740metershigh.1cGroupworkLookatthepictureandmakeconversationsLancangRiver4,909kilometersA:WhatisthelongestriverinYunnan?B:It’sLancangRiver.A:Howlongisit?B:It’s4,909kilometers.TheD
