3/3Unit10Air第3課時教學設計【內容來源】上海教育出版社（2011年版）六上Module4Unit10【主題】Askandanswer,Learnthesounds,Thinkandwrite【課時】第3課時一、教學目標(Teachingaims)通過Askandanswer的問答練習幫助學生運用核心句型，聯系實際，圍繞空氣污染展開討論。通過Thinkandwrite的寫作練習，幫助學生綜合運用本單元所學的句型描述空氣的重要性和空氣污染的原因，并對如何保持空氣潔凈給出建議。幫助學生學習字母g、j、s和字母組合ch、sh在單詞中的發音。通過學習任務(Task)，幫助學生鞏固和運用本單元所學的知識和技能。二、教學重難點(Teachingpointsanddifficulties)語音：ch,g,j,sh,s句型：Whatmakestheairdirty?三、教學準備(Teachingpreparation)課件、音頻（教師可以在優教平臺直接調用或下載）。四、教學過程(Teachingprocess)Pre-taskpreparations學生表演Sayandact的對話，引入本課時的學習內容。 T：Fromthedialogueweknowthatsmokemakestheairdirty.Todaywearegoingtalkaboutitmore. 2．教師設問，讓學生根據自己的認知說說空氣污染的情況While-taskprocedures借助多媒體或掛圖出示空氣污染的圖片，讓學生說說空氣污染的原因。T:Lookatthesephotos.Canyoutellmewhatmakestheairdirty?S1:Thesmokefromfactoriesmakestheairdirty.S2:Thesmokefromcarsmakestheairdirty.S3:Thesmokefrombusesmakestheairdirty.S4:Thesmokefromburningwoodmakestheairdirty.S5:Thesmokefromfirecrackersmakestheairdirty.2.根據學生的回答引出下一個問題，并出示Askandanswer欄目中第二排的圖片，激發學生思考保護環境的對策。T:There’ssomuchairpollutionnowadays.Whatshouldwedotokeeptheairclean?S1:Weshoulddriveourcarslessoften.S2:Weshouldn’tplaywithfirecrackersalot.S3:Weshouldrideabicycleortakebusestoworkorschoolmoreoften.S4:Weshouldusebothsidesofthepaper.S5：Weshouldtellfactoriesnottopollutethe學生可以先在小組內討論，然后在班級內進行交流。3.教師總結本單元的內容，用問題幫助學生梳理學習內容。T:Inthisunit,whatdidwetalkabout?Ss:Air.T:Whatisairlike?S1:Airhasnocolour,shape,smellortaste.S2:Airisimportanttous.S3:Airkeepspeople,animalsandplantsalive.T:Whatmakestheairdirty?S1:Smokefromfactories,carsandbusesmakestheairdirty.T:Whatshouldwedotokeeptheairclean?S1:Weshoulddriveourcarsless.S2:Weshouldplantmoretrees.將以上三個引導性問題的核心內容板書在黑板上，幫助學生總結本單元的學習內容。T:Inthisunit,welearntaboutair.Pleasetellussomethingaboutair.S2:Airhasnocolourorshape.Wecan’tseeit,butwecanfeelit.Airisimportanttous.Airkeepsusalive.Airkeepsthingshighinthesky.Nowtheairisgettingdirty.Thesmokefromfactoriesmakestheairdirty.Thesmokefromcarsandbusesmakestheairdirtytoo.It’snotgoodforus.Weshouldkeeptheairclean.Weshoulddriveourcarslessoften.Weshouldplantmoretrees.Wehopewecanhavefreshairallthetime.最后，讓學生通過小組和集體交流，談一談個人對空氣的認識。4.學生朗讀Learnthesounds的單詞，感受紅色字母的發音。教師可以先作示范，引導學生自己找出發音規律。T:ch,/t?/,chair,China.Ss:ch,/t?/,chair,China.T:Pleasereadtheotherwordswiththesound/tJ7inthem.S1:Each,rich.T:Canyoufindanyotherwordswiththissound?S2:Teacher,children,watch,catch.運用這種方法教學其他語音。然后讓學生完成Listenandcircle的練習。Post-taskactivities1.學生完成Thinkandwrite的練習，將口頭能夠表達的內容落入筆頭。在寫小短文之前先口頭說一遍，然后再落筆。學生寫完后可以在小組內進行交流。2.請學生看《練習冊》Task的第一部分，找一找有關空氣污染的圖片并貼在方框里。接著，學生分成若干小組，根據第二部分的提示在小組內問答，討論保持空氣潔凈的方法。S1:Whatshouldwedoto