九年级英语全册 Unit 8 We’re trying to save the earth Section A（Grammar focus-4c）精品名师课件 鲁教版五四制.ppt

Unit8Weretryingtosavetheearth!1.不同种类的污染不同种类的污染2.河底河底3.把垃圾扔到河里把垃圾扔到河里4.在在中起作用中起作用differentkindsofpollutionthebottleoftheriverthrowrubbishintotheriverplayapartinI.Check if you know these phrases.5.在中国南部在中国南部6.对对有害有害7.在在顶部顶部8.海洋生态系统海洋生态系统insouthernChinabeharmfulto atthetopoftheoceansecosystemII.Translate the sentences.II.Translate the sentences.1.甚至是河底都满是垃圾。甚至是河底都满是垃圾。2.这个方法不仅残酷还对环境有害。这个方法不仅残酷还对环境有害。Eventhebottomoftheriverwasfullofrubbish.Thismethodisnotonlycruel,butalsoharmfultotheenvironment.3.鲨鱼处于海洋食物链的顶部。鲨鱼处于海洋食物链的顶部。4.许多人相信鱼翅对健康有好处。许多人相信鱼翅对健康有好处。Sharksareatthetopofthefoodchainintheoceansecosystem.Alotofpeoplebelievethatsharksfinsaregoodforhealth.Pay attention to the sentences.1.Were trying to save the earth.2.The river used to be so clean.3.The air is badly polluted.4.No scientific studies have shown that shark fins are good for health.5.We should help save the sharks.Present progressiveused toPassive voicePresent perfectModal verbs现在进行时现在进行时:PresentProgressive结构结构:be(am/is/are)+v.-ing标志词：标志词：Look,Listen,now,rightnowe.g.Look!Theboyiscrying.定义：定义：表示说话时表示说话时(瞬间瞬间)正在进行的正在进行的动作动作,也表示目前或现阶段正也表示目前或现阶段正在进行的动作。在进行的动作。What a fine day today!Look!What are they doing?used to do sth.表示过去常常做某事表示过去常常做某事,而而现现 在往往不做了在往往不做了,后接动词原后接动词原 形。形。be used to doing sth.表示习惯于做某事表示习惯于做某事e.g.I used to get up at six oclock.Joe is used to drinking a cup of coffee every morning.usedtodo与与beusedtodoingTranslation.1.她过去常常周末和朋友闲逛。她过去常常周末和朋友闲逛。She used to hang out with friends on weekends.2.他习惯于每天晚上睡得很晚。他习惯于每天晚上睡得很晚。He is used to staying up.被动语态：被动语态：Passivevoice定义：定义：表示主语是动作的承受者，即行表示主语是动作的承受者，即行为动作的对象的一种语态。为动作的对象的一种语态。结构：结构：be+过去分词过去分词e.g.Anewschoolwasbuiltlastyear.Ourclassroomiscleanedeveryday.Translate the sentences by using Passive voice.1.刚才一些老年人参观了博物馆。刚才一些老年人参观了博物馆。2.工人们使用不同种类的机器工作。工人们使用不同种类的机器工作。Themuseumwasvisitedbysomeoldpeoplejustnow.Differentkindsofmachinesareusedtoworkbytheworkers.结构结构:has/have+过去分词过去分词标志词：标志词：already,yet,ever,never,since,fore.g.Ihaventfinishedmyhomeworkyet.定义：定义：表示动作已经完成表示动作已经完成,但对现在造成影但对现在造成影响响;或者表示从过去某一时间开始一或者表示从过去某一时间开始一直延续到现在并还可能持续下去的直延续到现在并还可能持续下去的动作。动作。现在完成时现在完成时:PresentPerfectComplete the following sentences.1.I_(be)inBeijingfortwoyears.2.I_never_(hear)ofthatmanbefore.3.Tom_(work)theresincetwoyearsago.havebeenhaveheardhasworked4.Thetwins_(wash)theclothesforanhour.5.He_(play)basketballsincethreeyearsago.6.Howlong_Sally_(sing)yet?havewashedhasplayedhassung1.情态动词本身有一定的词义情态动词本身有一定的词义,表示说表示说话人的情绪、态度或语气话人的情绪、态度或语气,但不能单但不能单独作谓语独作谓语,只能与其他动词构成谓语。只能与其他动词构成谓语。常见的有常见的有:can(could),may(might),must,need,shall(should),will(would)等。等。情态动词情态动词2.情态动词无人称和数的变化情态动词无人称和数的变化,后接动词原形。否定后接动词原形。否定式是在情态动词后面加式是在情态动词后面加not。个别情态动词有过去。个别情态动词有过去式形式式形式,可用来表达更加客气、委婉的语气。可用来表达更加客气、委婉的语气。e.g.Ken can climb up the tress like a koala.Tracy could ride a bicycle when she was five years old.You mustnt play with fire.It is dangerous.Translation.1.我们不能在教室里吃东西。我们不能在教室里吃东西。2.首先你必须完成作业。首先你必须完成作业。3.他现在不可能在家。他现在不可能在家。4.她一定知道这个问题的答案。她一定知道这个问题的答案。Wecanteatintheclassroom.Youmustfinishyourhomeworkfirst.Hecantbeathomenow.Shemustknowtheanswertothisquestion.4aFill in the blanks with the correct forms of the verbs in brackets.Joe:_youever_(take)partinanenvironmentalproject?Eric:Yes,Ihave.I_(help)withaClean-UpDaylastyear.Itwas_(consider)thebiggestclean-upprojectthiscity_ever_(have).Havetakenhelpedconsideredhadhad参加参加Joe:Howmanypeople_(take)part?Eric:I_(think)morethan1,000people_(come)tohelpout.Joe:Thatsfantastic!Iguesseveryoneinthiscityis_(try)toimprovetheenvironment.Eric:Yes,wecantaffordto_(wait)anylongertotakeaction!tookthinkcametryingwaitv.承担得起承担得起(后果后果);买得起买得起4bFill in the blanks with the appropriatemodal verbs from the box.People_thinkthatbigthings_bedonetosavetheearth.Manyforgetthatsavingtheearthbeginswithsmallthings.Forexample,you_savemay/mightmustcancanwouldcouldhavetoshouldmustmay/mightelectricitybyturningoffthelightswhenyouleavearoom.You_alsousereusablebagsinsteadofplasticbags.Ithinkitsagreatideathatyounow_payforplasticbagsinsomestores.Andinsteadofdrivingtoschoolorwork,you_rideyourbikeorwalk.Ifitsfar,you_takethebus.Allthese couldhavetocan/shouldcan/could关掉关掉adj.可重复使用的可重复使用的付费付费;付出代价付出代价small things _ add up and become big things that _ improve the environment.Lets take action now!couldwould/can采取行动采取行动4cMake a list of things that people can do to help the environment and discuss your list with your partner.use public transportation(n.交通运输交通运输);turnoffthelightswhenyouleavearoom;usereusablebagsinsteadofplasticbags;rideyourbikeorwalktoschoolorwork;stopusingpapernapkins(餐巾纸餐巾纸);recyclebooksandpaperIthinkthateveryoneshouldusepublictransportation.Idisagree.Itsdifficultforparentswithyoungchildrentousepublictransportation1.Wecantaffordtowaitanylongertotakeaction!affordv.承担得起承担得起;提供提供,给予给予affordtodosth.(常与常与can,beableto连用连用)买得起买得起;有足够的有足够的e.g.Wecantaffordtopaysuchaprice.我们付不起这个价钱。我们付不起这个价钱。Dancingaffordsuspleasure.跳舞给我们带来快乐。跳舞给我们带来快乐。2.save electricity by turning off the lights when you leave a room.turn off 关掉关掉 e.g.Please turn the television off before you go to bed.睡觉前请关掉电视。睡觉前请关掉电视。turn around 转身转身 turn up 调高调高(音量音量)turn down 调低调低;拒绝拒绝turn into 变成变成;进入进入 turn on 打开打开,发动发动 turn off 关掉关掉,关闭关闭turn out to be 结果是结果是turn over 移交移交拓展拓展:turn相关短语相关短语Finish the exercises in the workbook.1、了解面对逆境，远比如何接受顺境重要得多2023/3/272023/3/273:30:53 PM。2023/3/272023/3/27Monday,March 27,20232、一般的伟人总是让身边的人感到渺小Monday,March 27,20233:30:53 PM3/27/2023 3:30:53 PM15:30Mar-23。2023/3/272023/3/272023/3/273/27/2023 3:30:53 PM3、2023/3/27Mar-2327-Mar-234、昨天是张退票的支票27-Mar-233:30:53 PM15:302023/3/272023/3/272023/3/27Monday,March 27,20235、积极人格的完善是本，财富的确立是末27-3月-23。2023/3/272023/3/272023/3/272023/3/273/27/20236、昨晚多几分钟的准备3/27/2023 3:30:53 PM27 三月 20232023/3/272023/3/272023/3/277、每一发奋努力的背，必有加倍的赏赐2023/3/27三月 232023/3/272023/3/272023/3/273/27/20238、业余生活要有意义，不要越轨。2023/3/272023/3/2727 March 20239、要及时把握梦想，因为梦想一死3/27/2023 3:30:53 PM。2023/3/272023/3/272023/3/272023/3/2710、一个人的梦想也许不值钱，但一个人的努力很值钱。3/27/2023 3:30:53 PM2023/3/2727-3月-2311、在真实的生命里，每桩伟业都由信心开始，并由信心跨出第一步。3/27/2023 3:30 PM3/27/2023 3:30 PM2023/3/272023/3/27谢谢大家谢谢大家1、每一个成功者都有一个开始。勇于开始，才能找到成功的路2023/3/2715:302、成功源于不懈的努力，人生最大的敌人是自己怯懦。2023/3/272023/3/272023/3/273/27/2023 3:30:54 PM3、每天只看目标，别老想障碍Monday,March 27,2023。2023/3/272023/3/272023/3/27Monday,July 19,202127-Mar-234、宁愿辛苦一阵子，不要辛苦一辈子2023/3/27。2023/3/272023/3/272023/3/27Monday,March 27,20235、积极向上的心态，是成功者的最基本要素2023/3/27。2023/3/272023/3/272023/3/272023/3/273/27/20236、生活总会给你另一个机会，2023/3/273:30:54 PM2023/3/272023/3/272023/3/277、人生就像骑单车，想保持平衡就得往前走21:19:482023/3/272023/3/273/27/20238、业余生活要有意义，不要越轨。2023/3/272023/3/2727 March 20239、我们必须在失败中寻找胜利Monday,March 27,20232023/3/2710、一个人的梦想也许不值钱，但一个人的努力很值钱。3/27/2023 3:30:54 PM2023/3/2727-3月-2311、在真实的生命里，每桩伟业都由信心开始，并由信心跨出第一步。3/27/2023 3:30 PM3/27/2023 3:30 PM2023/3/272023/3/27谢谢大家谢谢大家