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thelongestriverintheworld.TheNileTheCaspianSeathedeepestsaltlakeintheworld.thebiggestdesertintheworld.TheSahara八年级人教版下册SectionA(Ia---1c)学习目标1.能掌握以下单词和句型：squaremeterdeepdesertQomolangmatheCaspianSeatheSaharatheNile句型：What’sthehighestmountainintheworld?Qomolangma2.复习并且熟练运用形容词和副词的比较级和最高级.3.掌握多位数的表达法和读法.学习重点：能熟练地运用形容词和副词的比较级和最高级的用法。学习难点：掌握多位数的表达法和读法.自学互动，适时点拨•学习互动一•1.写出下列形容词的比较级和最高级•high_________________long_________________•big_________________deep_________________higherhighestlongerlongerestbiggerbiggestdeeperdeepest2.Canyoureadthesenumbers?3001,0254,0006,67150,0008,844.43600,0009,600,0007,000,000hundredthousandmillion百千百万知识点拨•复杂数字的读写规律•1）.小数点读point如•25.7读作twenty-fivepointseven•2）.百位跟十位之间通常用and连接如•138onehundredandthirty-eight•3）.从后往前每三位数点一个逗号，依次读作thousandmillion•9,600,000ninemillionsixtyhundredthousand学习互动二•1.根据预习，完成课文里的1a部分1aMatchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershighExplanation•度量单位表达方法：•1）数词+meters/kilometers/+high/deep/•long/wide.如•10metershigh/long/deep/wide.•2)xx平方米=xxsquaremeters如•11squaremeters.•3)度量单位的提问方式：How+high/deep•/long/wide…+be+主语•--HowhighistheQomolangma?•--It’s8,844.43metershigh.A:HowhighisQomolangma?B:It’s8,844.43metershigh.A:HowbigistheSahara?B:It’sabout9,600,000squarekilometersinsize.学习互动三:Listening(1b)1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais____________ofallthesaltlakes.4.TheNileis_________riverintheworld.higherthebiggestthedeepestthelongestPracticeinpairslikethis:A:Whatisthehighestmountaintheworld?B:Qomolangmaz。xxk课堂检测1、把下列句子译成英语•1)最高的山：•2）最深的海：•3）97.5米高：•4）6，670公里长：thehighestmountainthedeepestseaninety-sevenpointfivemetershighsixthousandsixhundredandseventykilometerslong2、用所给词的适当形式填空1)Qomolangmais______(high)mountainintheworld.2)Jackisover1.8meters.Heis_______(tall)boyinourclass.3)Summeris_______(hot)seasonofayear.4)–Whois_______(brave)TomorBruce?--IthinkTomis.Healwaysstaysathomealoneatnight.5)Acowismuch_______(heavy)thanasheep.thehighestthetallestthehottestbraverheavierThankyou