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1、Unit7What’sthehighestmountainintheworld?建三江局直子弟学校黄秋明教学目标：1语言目标：学会含有大数字的度量结构的表述。掌握本单元重点词汇，并用不同句式表达比较级和最高级。2技能目标：能听懂和谈论有关地理和自然的话题。3情感目标：培养学生热爱大自然，保护环境的意识。教学重点：1．学习并掌握表达物体的长、宽、高、深和面积。2.学会含有大数字的度量结构的表述。3.提高听说技能。教学难点：正确运用形容词和副词的比较级和最高级的不同表达方式。TeachingProcedureStep1Warmingup1.Presentthep
2、hotosofQomolangma，theNile,theCaspianSeaandtheSahara.andtalkaboutthem“Howbig/high/long/bigis…?’andhelpthestudentstoanswer:It’s…meters/kilometers/cmbig/high/long/big.e.g.A:HowhighisQomolangma?B:It’s8,844metershigh.Askstudentstoaskandanswerinpairs.A:What’sthehighestmountain/thelargest
3、desert/thedeepestsaltlake/thelongestriver?B:Qomolangma/theSahara/theCaspianSea/theNileStep21aMatchthefactsyouknow.Practiceinpairsusingtheinformationin1a.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershighSt
4、ep3Explanation三位数以上的数，从个位往前数，每三位数加一个逗号，从后往左的第一个逗号代表thousand,第二个逗号代表million,第三个逗号是billion。thousand,million,billion不能用复数形式，后也不能加and,小数点读作point/dot。…8,844metershigh.8,844米高…metershigh(long,wide…)……米高（长,宽……)。英语表示“有多长（宽，高……）”时，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。例如8,848.43读作eightthousand,eighthun
5、dredandforty-eightpointforty-threee.g.Thewallis1.7meterswide.Step4PracticeSaysomenumbersandsomephrases.Step5Listening2aListenandnumberthefacts(1-4)intheorderyouhearthem.2bListenagainandfillintheblanksin2awiththenumbersinthebox.6,3005,0005,464300___TheYangtzeRiverisabout____kilomete
6、rslongandtheYellowRiveris___kilometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.___Chinaisover___yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven___yearsold.___ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.Explain:1.pop
7、ulation人口，单独作主语谓语动词用单数，分数或百分数修饰做目主语谓语动词用复数形容人口多用large,big,少用small，对某地人口数目提问用What’sthepopulation…?2.修饰比较级可用abit,alittle,rather,much,far,alot,even3.as…as表示与……一样.否定形式notas/so…as表示不如，中间用形容词或副词的原级Step62dReadandanswerReadtheconversationforthefirsttime,andanswerthequestions:1)Whichisthebi
8、ggestman-madeobjectsinthew
