初中英语九年级 Unit 13 We're trying to save the earth Section A (2a-2d)教案

Unit13We’retryingtosavetheearth!SectionA（2a-2d）TeachingAimsLanguagegoalsTothinkaboutwaysofprotectingtheenvironment.Keywordsandphrasescoal,ugly,advantage,cost,wooden,plastic,takeaway,binKeysentences1.Theairhasbecomereallypollutedaroundhere.2.Ouractionscanmakeadifferenceandleadtoabetterfuture!TeachingDifficultiesLetSsthinkaboutwaysofprotectingtheenvironment.TeachingAidsCAI,multimediacoursewareorotherrealiathattheTneedsforteachingTeachingProceduresTipsStep1WarmingupLetSswatchavideoaboutpollutionandtheenvironmentalprotection,thenanswerthequestions:Howdoyoufeelafterwatchingthevideo?Whatcanwedotohealtheworldinourdailylife?Step2Presentation&PracticeWhile-listening2aAskSstolistentotheinterviewandcirclethepollutionthathavebeentalkedabout.Answers:circled:A,B2bAskSstolistenagainandcompletethesentences.Tmaywanttofocusonsomewordsusedtotalkaboutthethingsthatarethrownaway.Note:rubbish(BritishEnglish)—thingsthatpeoplethrowawaytrash/garbage(AmericanEnglish)—thingsthatpeoplethrowawaywaste—rubbishandunwantedmaterialsleftbehindafterwehaveusedsomething,e.g.industrialwastelitter—thingsthatpeoplehavethrownawayandleftonthegroundinpublicplacesrefuse(n.;pronounceddifferentlyfromtheverb)—amoreformalwordfor“rubbish”Answers:1.morecars2.pollute3.arethrowingaway4.publicplacesShowSsthelisteningmaterial,askSstoreadtheconversationsentencebysentencefollowingtherecording.Post-listening2cAskSstorole-playtheconversationusingtheinformationin2aand2d.Forweakerclasses,TmaywanttoprovidesomeguidancefortheSsbydemonstratingfirsthowtheconversationcanflowbetweenJasonandSusan.TogetherwithaSmoreproficientinEnglish,Tcanrole-playtheconversationbeforeaskingSstotryitontheirownwiththeirpartners.Step3Presentation&ReadingPre-readingDivideSsintogroupsoffour.Askeachgrouptodiscusstheeffectivewaystoprotecttheenvironmentandsolvetheproblemsofpollution.Then,askeachgrouptosharetheiranswerstothewholeclass.Afterallthegroupshavesharedtheiranswers,TcanusetheexamplesfromP15-P19tomakeaconclusion.While-readingTmaywishtoinvitetwovolunteerstorole-playthegivenconversation,thenaskSstoidentifythewaysofsolvingtheenvironmentalproblemsmentionedintheconversation,withoutreferringtotheirtextbooks.TcanaskSstowriteashortparagraphtosummarizetheproblemsandthesuggestedsolutions.ShowthechartonPPTP22toSs,askthemtoread2dagainandcompletethechart.Answers:Airpollution:Rideabike,takethebusorsubwayinsteadofdriving.Wastepollution:Bringabagtogoshopping.Don’ttakewoodenchopsticksorplasticforkswhenyoubuytakeawayfood.Throwrubbishinthebins.Think-Pair-ShareStep1:AskSstothinkaboutthequestions:Whatdidyoulearnfromtheconversation?Whatotherthingscanwedotoprotectourenvironment?Step2:AskSstofindtheirshoulderpartners.Step3:AskSstosharetheiranswerswiththeirpartners.Step4Languagepointslearningadvantage作名词，其反义词为disadvantage“缺点；不利条件”。takeadvantageof...意为“利用……”。cost在此处作动词，其过去式和过去分词均为cost。cost,spend,take与pay的区别：cost的主语是物，宾语是金钱，sth.cost(s)(sb.)somemoney指“某物花费(某人)多少钱”；spend的主语是人，宾语是时间或金钱，sb.spend(s)sometime/moneyonsth.指“某人花费时间/金钱在某事/物上”，sb.spend(s)sometime/moneydoingsth.指“某人花费时间/金钱做某事”；take常用it作形式主语，宾语是时间，ittakessb.sometimetodosth.指“做某事花费某人多长时间”；pay主语是人，宾语是金钱，sb.pay(s)somemoneyforsth.指“某人为某物付费”。Step5Exercises&HomeworkExercisesDoexercisesfromPPTP28-P29.HomeworkPreviewthepassagein3a.Dotheexercisesinstudents’book.TeachingReflectionThisisthesecondperiodoftheunit.Intheunitwetalkaboutpollutionandenvironmentalprotection.Soitisimportanttogetthestudentstolearnwordsandphrasesaboutthetopicsinthisunit.Wewillreviewsomestructuresandtensesandgetthestudentstopracticetheminlisteningandspeaking.Theyare“should＋do;usedto＋do;have/has＋done;be＋d