英语人教版四年级下册Unit4 At the farm A Let’s lear.doc

Unit4AtthefarmALetslearnLetschant教学设计一、教材分析：本单元围绕“Atthefarm”这一题材展开，学习农场里的蔬菜和动物，以及单、复数的使用习惯。本课时是本单元的第一课时词汇教学课。重点学习的单词是carrot,tomato,potato和greenbean,还有它们的复数形式变化carrotcarrots,tomatotomatoes,potatopotatoes和greenbeangreenbeans,并能简单地描述蔬菜的特征，如：Lookatthegreenbeans.Theyresolong.学生能够理解名词的单复数变化，并能正确地运用。二、学情分析：学生从三年级开始学习英语，已经具备了一定的口语表达能力。学生在观察能力、思维能力、语言表达能力方面都有了较好的提高，有着强烈的好奇心与动手操作的能力。他们喜欢在自己的探索中获取知识，喜欢在玩中学，喜欢在做中学，喜欢在想中学，喜欢在用中学。三、教学内容Unit4AtthefarmALetslearn及Letschant。四、教学目标1知识目标（1）能够听、说、认读单词tomato，potato，carrot，greenbean。（2）能理解Lookatthegreenbeans.Theyresolong.Yes,andthepotatoesarebig.（3）会说唱歌谣。2能力目标培养学生的口头表达能力和表演能力。3情感目标教育学生要有合理的饮食习惯。五、教学重难点教学重点：掌握三会单词tomato，potato，carrot，greenbeans。教学难点：掌握单词potato和tomato的复数形式。六、教学过程Step1Warmingup创设情境，导入新课。T:Todaywearegoingtoaninterestingplace.a)Ithasmanytreesandgrass.b)Ithasmanyanimals.c)Ithasmanyvegetables.d)Therearepotatoes,tomatoes,carrotsandgreenbeans.Canyouguess?Wherearewegoing?Ss:Farm.T:Yes,wearegoingtothefarm.Step2PresentationLetslearn1.Teach“carrot（s)-yummy”1)T:Letsplayaguessinggame:itsakindofvegetables.Itsorange.Therabbitslikeitverymuch.Whatsit？SscanansweritbothinChineseandEnglish.ThenTwillshowthewordcardandthepictureanddrillit.TwillleadactivityandpicksomeSgrouptoread.T:Thenletscountthecarrotsinthepicture.(e.g.,Onecarrot,twocarrotsmanycarrots.)教师出示wordcard“carrots”并张贴，教师带读，抽查2小组读。2)Ilikecarrots.Theyareyummy.（出示单词卡抽读个别学生，教师带读新单词。)趣味拍手操练chant:Ilikecarrots.Ilikecarrots.Yummy,yummy, yummy.（师生示范chant，学生之间pair work。）2. Teach “Green beans-tender-long” 1) T: Show a picture of “green beans” and ask “what are these? Are they carrots? Ss: No, they arent. They are green beans. Ss show the word card and drill it. 2) T: Look at the green beans. Theyre tender. I like green beans, I like green beans, tender, tender, tender. (Use the different intonations.) 3) Look at the green beans. Theyre long. (Show two green beans and compare them.） Show the word card “long” and let Ss read it.3.Teach“tomato(es)-juicy”1)Showabag.T：Look!Ihaveabag.Thereissomethinginit.Whowantstocometothefrontandtaste?Bebrave!2)Closeyoureyes.Openyourmouth.Whatsit?当学生得出答案时，教师出示实物及单词，逐步引出onetomato，twotomatoes，从而引出tomato的复数形式。3)Playthefingerexercises.请学生看老师的手指数量来判断应该使用tomato还是tomatoes。4)Showtomatoes.T:Lookatthetomatoes.Whatcolorarethey？Ss:Theyarered.T:Yes.Theyreredandjuicy.教师用手掰开西红柿并展示词卡。Thenasktheboysandgirlstorepeatit.趣味拍手操练:Iliketomatoes,Iliketomatoes,juicy,juicy,juicy.4.Teach“potato(es)-tasty”1)Showabag.T:Lookatthebag.Canyoutouchandguess“Whichoneisthepotato?”Sstouchitandtrytofindoutthepotato.通过这个“摸一摸”游戏，引出新单词potato，然后出示单词卡，让学生认读。接着引导学生数一数共有多少个potato。2)Playashortgame“Highandlow”.巩固操练potato的读音。3)Showthetruepotatoes.T:Lookatthetomatoes.Theyrered.Lookatthepotatoes.Theyrebrown.编一个chant巩固知识：Tomatoes,tomatoes,“t”isfortomatoes.Potatoes,potatoes,“p”isforpotatoes.带领学生分小组一起吟唱。4)T:Whenthepotatoesbecomefries,theyretasty.趣味拍手操练：Ilikepotatoes,Ilikepotatoes,tasty,tasty,tasty.5)Tshowstwopotatoesandcomparethem.T:Look!Thispotatoisbig.Tshowsthewordcard“big”andletSsreadit.Step3Drill1.GamesTeachersaysthewordsandaskstwostudentstopointoutthepicture.Letsseewhois quicker.（看图说单词）Guessinggame:onestudentholdsthepicture,theotherstudentguess.Usethestructure:S1:whatarethese?S2:arethey.?S1:Yes,theyare./No,theyarent.BingoWritethefourwordsonthepaper:1)Forthefirsttime:listenandtick.Whenyoufinished,putupyourhandsandsay“bingo”letscheckandseewhocangetthefirstbingo.2)Forthesecondtime:listenandcircle.Whenyoufinished,putupyourhandsandsay“bingo”.Letscheckandseewhocangetthesecondbingo.3)Forthethirdtime:listenandcross.Whenyoufinished,putupyourhandsandsay“bingo”.Letscheckandseewhocangetthethirdbingo.2.LetslearnNow,SarahandMikeareatthefarm,too.Letslistentothetape.教师播放Letslearn的内容。1)第一遍，学生听录音回答问题：Arethegreenbeanslong?Arethepotatoesbig?2)第二遍，订正答案并跟读。3)Pairwork:onestudentisSarah,theotherisMike.4）Showtime.Step4ExtentionBoysandgirls,doyouwanttovisitMr.Wangsfarm?ifyouwanttovisitmyfarm,youmustpass3challenges.（同学们，想