英语人教版八年级下册Unit 7 section A(1a-1c).pptx

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1、Warming-uphigh--higher--highestLet'splayagame!tall--taller--tallestWho'sthetalleststudentinourclass?Unit7What'sthehighestmountainintheworld?sectionA1a－1cMuyiMiddleSchoolQuXiaoqinStudyaims1.较大数字的读法2.掌握和运用形容词的比较级和最高级谈论各之最Presentationsquaren.平方；正方形metern.米；公尺desertn.沙漠deepadj.深的；纵深的8,844

2、.43Whatdoyouknowaboutthisnumber?Let’senjoythebeautyofnature!QomolangmaTheworld’shighestmountainintheworld.Doyouknowhowhighitis?It’s8844.43metershigh.TheNileisthelongestriverintheworld.It’smorethan6,600kilometerslong.TheNileTheCaspianSeaTheworld’sdeepestsaltlakeDoyouknowthathowdeepthew

3、orld’sdeepestsaltlake?Yes,itis1,025metersdeep.TheSaharaisthebiggestdesertintheworld.It’sabout9,600,000squarekilometersinsize.TheSaharaHerearesomenumberscanyoureadit?9,600,000Ninemillionsixhundredthousand1,025Onethousandandtwenty-five6,671Sixthousandsixhundredandseventy-one8,844Eightth

4、ousandeighthundredandforty-four大数字的表达法：1000以上的基数词表达法从数字的右端往左数，每三位数加一个逗号（即以此把数字分为若干段）。第一个逗号前的数为thousand(千)，第二个逗号前的数为million(百万)，第三个逗号前的数为billion(十亿)1a.Matchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844

5、.43metershighListeningListenandcompletethesentences.1b1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais____________ofallthesaltlakes.4.TheNileis_________riverintheworld.higherthebiggestthedeepestthelongestThelongestriverinth

6、eworldistheNile.Whichisthelongestriverintheworld?PairworkPracticeinpairslikethis:A:Whichisthe(deepest/highest/biggest/longest)…inthe…?B:…Let’sprotectthebeautyofnature!bignumbers2.数词+单位名词的复数+形容词eg.1,025metersdeep6,671kilometerslong3.A+be+形容词的比较级+than+Beg.MaryistallerthanLinda.the+形容词的最

7、高级+名词Homework1.Tomakedialoguesaboutaskingthesizeofobjects.(1a)2.Writedownthreesentencesusingthecomparisonsonyourexercisebook.Thankyou!