一、TeachingGoals 1、形容词及副词的比较级（ComparativeFormsofAdjectiveandAdverbs)A.SamhaslongerhairthanTom. B:PetersheavierthanPaul. C:PaulsshorterthanPeter. 2、asas结构用来进行同级比较 A:TomisastallasPaul. B:PeterrunsasfastasMike. 3、使用形容词及副词的比较级对两者进行比较的疑问句及回答。 A:ThatsTara,isntit? B:No,itisnt,ItsTina.TinaistallerthanTara.AndshealsosingsmoreloudlythanTara. 二、Teachingandlearningsteps: Step1.TeachingAims： TellSstheyaregoingtolearnUnit3GrammarFocus3a-3c. Step2.Review 1. Accordingtothepictures,writedowntheComparativeFormsofAdjectiveandAdverbs2.Usingthepicturesabove,letSsworkinpairs： LiYongisfunny. PanisfunnierthanLiYong. Andyissmart. MikeissmarterthanAnder. 3.Roleplaythedialogue2donpage18infrontoftheclass. 【设计意图】：通过单词复习及对话练习，检查学生对于上节课知识的巩固，了解把握学生。 Step3.Grammarfocus 1. Showtwocolumsofwords,andaskstudentstomatchtheseAdjectiveandAdvervbswiththeircomparativeforms.(利用PPT展示两栏词语，引导学生读出这些单词，将形容词及副词与其比较级相匹配。) 2. Askstudentstofindoutthedifferencesbetweenthetwocolumwordsandtrytofindtherules.(找不同，找规律) 3.Teacherscangivesomehelptothestudents(通过指出一些形容词及副词比较级的变化，帮助学生找到变化规律) Tall Heavy Lazy Big Good/well Many/much Outgoing Difficult Easily Beautifully More Bigger Moredifficult Lazier Taller Moreoutgoing Heavier Better Moreeasily Morebeautifully Tall-taller(直接加-er) Big-bigger(双写最后一个辅音字母加-er) Heavy-heavier(变y为i加-er) Lazy-lazier(变y为i加-er) Outgoing-moreoutgoing Difficult-moredifficult Easily-moreealisly Beautifullymorebeautifully 结论： 形容词与副词的比较级的构成： （1）规则变化 构成方法 原级 比较级 一般加-er Tall Short long Taller Shorter longer 以e结尾的词加-r nice large late Nicer Larger later 以“辅音字母+y”结尾的词，改y为i，再加-er Heavy Easy happy Heavier Easier happier 以重读闭音节结尾，双写辅音字母，再加-er Thin Big Fat hot Thinner Bigger Fatter hotter 多音节形容词和部分双音节形容词构成比较级时，在前面加more Outgoing Friendly loudly Moreoutgoing Friendly loudly (2)不规则变化 原级 比较级 Good/well better Bad/badly/ill worse Many/much more little less far Farther further 完成下列句子： (1)他们的书比我们的多。 Theyhave_us. (2)这个房间比那个房间小。 Thisroom_thatone. 3.Dividestudentsintotwogroups,andaskthemtoreadGrammarFocusseperately.Drawalineundertheadjective,andcircletheadverbs IsTomsmarterthanSam? No,heisnt.SamissmarterthanTom. IsTaramoreoutgoingthanTina? No,sheisnt.TinaismoreoutgoingthanTara. Areyouas friendlyasyoursister? No,Imnot.Im friendlier. DoesTaraworkashardasTina? Yes,shedoes. Whosmorehard-workingatschool? Tinathinkssheworksharderthanme. 4.AskstudentstoreadGrammerFocusagain,andpayattentiontothesentencestructure“asas” 5.翻译探究： TaraworksashardasTina. _. “as+形容词或副词_+as”表示“_”，否定形式为“_”或“_”。译为“_”。如： (1) 我和你一样活泼。 _ (2) 他不如刘翔跑得快。 _ (3) 这本书不如那本书有趣。 _ (4) 他和你一样友好。 _ 【设计意图】：学生合作学习观察并总结，目的是引导学生观察、发现、归纳和掌握语言规律，形成有效的学习策略。教师只进行点拨精讲。 Step4.3aUsethewordatowritequestionsandanswers. 1. Julie/tall/you Q:IsJulieastallasyou A:No,sheisnt.Shestallerthanme. 2. Jack/run/fast/Sam Q:_ A:No,hedoesnt.Heruns_thanSam. 3. yourcousinoutgoingyou Q:_ 4.Paul/funny/Carol Q:_ A:No,heisnt.Hes_thanCarol. 【设计意图】：通过实战练习，帮助学生进一步掌握“asas”句型的用法。Step5.3bThinkofyourselftwoyears ago.Writeabouthowyouaredifferrentnow. 1. Areyoutaller? Yes,Iam.ImtallernowthanIwastwoyearsago. 2. Areyoufunnier? _ 3. Areyoumoreoutgoing? _ 4. DoyoustudyEnglishharder? _ 5. Doyousingbetter? _ 【设计意图】：通过语境练习，对比现在的自己和两年前自己的区别，进一步帮助学生掌握形容词及副词比较级的用法。锻炼学生的实际运用能力。 Step6.3cCompareyourparents.Check(right)whoissmarter,funnier,etc.inthechart.Thenaskyourpartnerabouthis/herparents. Mother father smart funny Workhard outgoing friendly 【设计意图】：通过对自己身边最熟悉的人物进行对比，进一步掌握比较级在现实生活的运用，培养学生的情感意识。 Step7.Summary 1.LeadtheSstohaveasummaryabouttheComparativeForm.ItincludesFuctionwhentousetheForm. 2.ShowtheteacherssummaryonthescreeninordertohelptheSstochecktheirownsummary. Theend-of-classtest (一)写出下列形容词和副词的比较级：long_wide_fat_heavy_slow_few_brightly_ Fast_far_quickly_happy_unhappy_ (二)选择填空： 1Hefeels_todaythanyesterday.