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新版六年级（下）英语新版六年级（下）英语Unit１Howtallareyou(3)B:let’slearn一、教学目标：1．能够听、说、读、写形容词的比较级形式：heavier,longer,thinner,bigger和smaller.二、教学重难点1．重点是四会掌握五个形容词的比较形式。2．难点是掌握以下形容词比较级的构成方式：heavy—heavier,thin—thinner,big—bigger.Areyoutallorshort?Let’sasktwoofyoutoanswerthisquestion.AskandanswerA:Howtallareyou?B:I’m1.2meterstall.(I’monepointtwometerstall.)I’m120centimetrestall.Heistallerthanthegirl.1.2metres-------onepointtwometers1.6meters-------onepointsixmeters1.9meters-------onepointninemeters1.?meters-------onepoint?metersHowtallareyou?Revision:dialogues对话1.Howoldareyou?Iam58yearsold.2.Howtallareyou?Iam167cmtall.3.Howheavyareyou?Iam64kg..thinnerheavierfatfattersmallerbiggerthinnerstrongerfunnyfunnierThelittleboyisfunny.Theotherboyisfunnier.Let’sread•cm=centimeter厘米•M=metre=meter米•kg=kilogram公斤千克•T=ton吨原型比较级talltallershortshorterlonglongeryoungyoungeroldoldersmallsmallerstrongstrongerbigbiggerthinthinnerheavyheavier总结归纳1）形容词+erlong→longer,strong→stronger,fast→faster2）以不发音e结尾的+rlarge→larger,nice→nicer,safe→safer3）以一个辅音字母结尾的重读闭音节，双写末尾辅音字母，再加+erfat→fatter,thin→thinner,big→bigger4)以辅音字母y结尾，变y为i+erhappy→happier,busy→busier,early→earlier,funny→funnier,heavy→heavier5)不规则变化good/well→better,many/much→more,bad/ill→worse，little→less,far→farther/furtherLook!ThisgirlisCathy.Howlovelythegirlis.Shehaslongarms.Shehaslonghairandbigeyes.Sheis6yearsold.Sheis104cmtall.Sheis27kg.Shelikesstudying.GroupworkNameAge年龄Weight重量Height身高Rewritethesentences.1.I’m164cmtall.(对划线部分提问)2.I’m13yearsold.(对划线部分提问)3.Iliketheyellowrabbit.(对划线部分提问)4.WuYifanisyoungerthanLucy.(改为一般疑问句)5.ChenJieisshorterthanMissWhite.(对划线部分提问)_________areyou?___________areyou?_________rabbit________you_______?________WuYifan_______________Lucy?________isshorterthanMissWhite?HowtallHowoldWhichdolikeIsyoungerthanWho