2015新目标英语九年级Unit-13-全单元教案

Unit13We’retryingtosavetheearth!全单元教案一、教学目标：1.语言知识目标基本词汇：litter,advantage,bottom,fisherman,coal,ugly,cost,wooden,plastic,takeaway,bin,shark,fin,method,cruel.Harmful,chain,ecosystem,industry,law,scientific,afford,reusable,transportation,recycle,napkin,upside,gate,bottle,president,inspiration,iron,work,metal,creativity,基本词组：beharmfulto,atthetop(ofsth.),takepartin,turnoff,takeaction,throwaway,putsth.togooduse,pull…down,bringback基本句型：We’retryingtosavetheearth!Theriverusedtobesoclean.Theairisbadlypolluted.Noscientificstudieshaveshowedthatsharkfinsaregoodforhealth.Weshouldhelpsavethesharks.2.技能目标:能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto句型。3.情感目标:有环境危机意识，学会关注环境保护环境。二、教学重难点：1.教学重点：（1）能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto句型。（2）保护环境的措施方法。2.教学难点：能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto句型。三、教学步骤:Period1SectionA1(1a-2d)Step1PresentationShowthepictureoftheearthandtellstudentstheearthispollutednow.Factoriespourdangerousgasesintotheair.Carsalsopourdangerousgasesintotheair.Somepeoplesmokeinpublicplaces.……Wemustthinkofbetterwaytotreatourplanetinfuture.Step2Learning1aHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.Step3.Listening1.1bListenandcompletethesentences.2.Listenagainandcheck(√)thesentencesyouhear.Step4Practice1.Role-playtheconversationin1c.Step5Languagepoints1.We’retryingtosavetheearth!我们正在竭尽全力拯救地球!trytodo=tryone’sbesttodo努力去做某事。e.g.Everystudentshouldtrytostudyhardinordertostudyinauniversity.为了进入大学学习，每个学生都应该努力学习。2.Herearesomewordsrelatedtodifferentkindsofpollution.berelatedto与…有关e.g.Iamnotrelatedtohiminanyway.我和他无任何关系。3.Everyoneinthistownshouldplayapartincleaningitup!playapartin在……方面起作用e.g.Agooddietplaysalargepartinhelpingpeoplelivelonger.健康的饮食在帮助人们长寿方面起着非常大的作用。playapart在……中扮演角色e.g.HewasinvitedtoplayapartinthisTVplay.他被邀请参加这个电视剧的演出。4.Eventhebottomoftheriverwasfullofrubbish.Yes,butpeoplearethrowinglitterintotheriver.litter和rubbish都可指“垃圾”，用作不可数名词。rubbish指“没用的东西(被扔或将要丢弃的无用的东西)”不可回收。litter指“(室内或公共场所)乱扔的废物(纸屑、不要的包装纸、废瓶等)”还可回收e.g.Throwtherubbishout.把垃圾扔出去。Theroomisfullofrubbish.房间里堆满了垃圾。Pickupyourlitterafterapicnic.野餐后将废弃物收拾好。Step6Listening1.2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.2.2bListenagainandcompletethesentences.3.Listenandanswerthequestions.1)Whoistheinterviewertalkingto?2)Whataretheytalking?3)Whatotherproblemsdotheysee?Keys:SusanandJason.Theenvironmentalproblems.There’stoomuchrubbishandwasteinthestreets.Step7Practice(2c)Usetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.Step8.Reading1.Read2dandcompletethechart.ProblemsSolvingproblemsairpollutionwastepollutionwooden(木头的)chopsticksorplasticforksrubbish2.Role-playtheconversation.Step9Summaryandlanguagepoints1.Thisisturningbeautifulplacesintouglyones.turn…into…把……变成……e.g.Theicyrainseemedliketoturnintosnow.渐渐地冻雨又变成雪花的模样。2.It’sgoodforhealthanditdoesn’tcostanything!costv.花费；使付出指花费金钱，主语通常是物。cost的过去式和过去分词均为cost。e.g.ThenewshirtcostMrWang200yuan.王先生花了200元买了新衬衫。Howmuchdoesthenewcomputercost?新电脑花了多少钱？take,spend,pay&costtake，spend，pay和cost都可以表示“花费”，但它们的用法各有不同。1)take多表示花费时间，常用于Ittakessb.sometimetodosth.这一句型中，其中it作形式主语。e.g.Itusuallytakesme40minutestocookthedinner.2)spend多表示花费时间和金钱，主语通常是人，常用于sb.spend(s)sometime/moneyonsth.和sb.spend(s)sometime/money(in)doingsth.两种句型。e.g.Davidspent2,000yuanonthenewmachine.Myfatherspendsanhour(in)watchingthenewsonTVeveryday.3)pay多表示花费金钱，主语通常是人，常用于sb.pay(s)somemoneyforsth.句型。e.g.Tommypaid20yuanforhisbreakfastyesterday.4)cost多表示花费金钱，主语通常是物，常用于sth.cost(s)(sb.)somemoney.句型。e.g.ThenewdresscostLinda88yuan.根据句意用take,spend,pay或cost的适当形式填空。1)Thatnewcar________themlotsofmoney.2)Mona__________50yuanonthebooksjustnow.3)Itusually_______meanhourtodomyhomework.4)Youshould__________sometimepractisingyourpronunciation.5)Mybrother_______6,000yuanforthenewcomputeryesterday.Keyscostspenttakesspendpaid3.Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!makeadifference(to…)表示(对……)产生影响或作用e.g.Doyouthinkhiswordswouldmakeanydifferencetothefinaldecision?你认为他的话会对最后的决定产生影响吗？ThenewteacheralwaysencourageslittleTom.Thishasmadeabigdifferencetohim.新来的老师总是鼓励小汤姆，这对他影响很大。Step9ExercisesStep10Homework1.Reviewthenewwordsandexpressions.2.Practicetheconversationin2d.Period2SectionA2(3a-3c)Step1RevisionRole-play2d.TranslatethesesentencesintoEnglish.①甚至是河底都满是垃圾。②这个小镇上的每个人都应该参加打扫。③骑自行车有其它的优点。④我买外卖食品从来不拿木筷子和塑料叉子。Step2.WarmingupTheearthisbadlypolluted.Whatshouldwedotosavetheearth?Step3Discussion(1)Haveyoueverseenashark?(2)Whatdoyouknowaboutsharks?Step4.ReadingSharksareendangered,readthepassageandjudgethesentences.①Shark’sfin（鱼鳍）soupisfamousandexpensiveallaroundtheworld.②Wehavetokillawholesharktogetabowlofshark’sfinsoup.③Peoplecutoffsharks’finsandthrowthesharksbackintotheocean.④Sharksareinthebottomofthefoodchainintheocean’secosystem.⑤WildAidandtheWWFareenvironmentalprotectiongroupsinChina.⑥Shark’sfinsaregoodforhealth.Completethefactsheetin3a.Step5.Languagepoints1.Asharkcannolongerswimandslowlydies.鲨鱼不能再游泳然后慢慢死掉。nolonger意思是“不再”I’mnolongerastudent.我不再是个学生了。有两个短语和nolonger同义，即not…anylonger和not…anymore，但侧重的方面不同。