仁愛英語九年級上冊UTSC教學(xué)設(shè)計

Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionCⅠ.Teachingaimsanddemands1.Learnsomenewwordsandphrases:onearth,period,millionsof,takeaway,rise,level,referto2.Learnsomeusefulsentences:(1)Whenitrainsorwhenthewindblows,theearthistakenaway.(2)Theheatfromthesuncan’tescapesothetemperatureisrising.3.Learntotalkabouttheharmofpollution:(1)(2)Asaresult,manyriversandlakesarenowdead.(3)Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.(4)Itcausestheleveloftheoceanstoriseandtheclimateoftheearthtochange.4.Developthestudents’senseofenvironmentalprotection.Ⅱ.Teachingaids圖片,小黑板,白板Ⅲ.Five-fingerTeachingPlanStep1ReviewT: Howdoyouprotectourenvironmentandsavewater?S1: Everyoneshouldplantmoretrees.S2: Weshoulddoeverythingwecantosavewater.…Step2Presentation: What’stheweatherliketoday?Ss:It’s…T: Asweknow,Beijingoftenhassandstormsinspring.Whatcausesthebadweather?Ss: Cuttingdowntoomanytrees.(展示1a第二幅圖畫。)T: Yes.Allovertheworld,peoplehavecutdownmillionsoftrees.Andtreesbecomefewerandfewer.(板書并要求學(xué)生掌握。)millionsof2.T:Wehumanshavelivedonearthforonly35000years,butduringthisperiodwehavechangedourplanetalotinmanyways.Nowreadthepassageandthenchooseasuitabletitleforeachparagraph.(學(xué)生完成后與教師核對答案。)3.(教師出示小黑板上的問題，讓學(xué)生再讀一遍課文后回答。)(1)Havewechangedourplanetinmanyways?(2)Havepeopledonegoodtotheearth?(3)Whyaremoreandmoresortsofanimalsandplantsdisappearing?(4)Aremanyriversandlakesdeadnow?(5)Isozoneimportanttotheearth?Why?(6)Hascarbondioxideintheairincreasedalot?Step3Consolidation1.(讓學(xué)生再次讀課文，完成1b。)T:Readthepassageagain.Finish1balone.(學(xué)生完成后，師生核對答案。)2.T:Nowfollowthetapetoreadthepassage.3.(教師讓學(xué)生討論并找出新的或不懂的語言點，培養(yǎng)學(xué)生的自主學(xué)習(xí)能力。教師解釋學(xué)生仍有疑惑的知識點并板書。)4.(讓學(xué)生兩人一組討論，完成下面的表格。)T:Howmanykindsofpollutionarementionedinthepassage?Howdotheyaffectourenvironment?Accordingto1a,finishtheformontheblackboard.KindofpollutionEffectStep4Project使學(xué)生了解各種污染對地球環(huán)境的影響，培養(yǎng)他們的環(huán)保意識。1.(讓學(xué)生分組討論，看哪組最快說出O3，CO2和溫室效應(yīng)的含義及其對環(huán)境的影響，并以此寫一篇短文，完成2。)T:Pleasereadthepassageagain,discussthemeaningsofthefollowingexpressionsin2ingroupsof4,andthenwritedownhowtheyaffecttheenvironment.2.(根據(jù)給出的提示詞寫一篇小短文，可先口述。)T:Writeashortpassagewiththekeywordsgiven.(板書關(guān)鍵詞。)(1)change…inmanyways(2)important,destroy,toomuch,harmfulradiation,causecancer(3)increasealot,blanket,rise,change(4)serious,dosomethingStep5Homework:Writeanarticleaboutthepollution.板書設(shè)計：Allthes