Unit8Lesson课件-冀教版英语八年级上册()

Unit8Protectingtheenvironment

Lesson2Lookattheplastic!学习目标通过本节课的学习，同学们将能:1．掌握“produce,affect,reusable”等词汇，熟练运用“Plasticpollutionis...”“Humansproduce...”“Whycan’t...”等句型。2．理解语篇内容，完成阅读任务，梳理塑料污染相关信息，用英语交流环保行动。3．深度理解语篇逻辑，灵活运用语言知识表达复杂环保观点。4．从环保认知转化为实际行动，用英语创造性输出。WatchavideoWhatdoyouseeinthevideo?FreetalkIfeelsadandworried.It’sterriblefortheenvironment.Theplasticpollutionlooksreallybadforanimals.Iseealotofplasticgarbageonthebeach.Thereareplasticbagsandbottlesintheriver.Plasticiseverywhere.Howdoyoufeel?Whatplasticproductsdoyouseeindailylife?Brainstormingplasticproductsplasticbagsplasticbottlesplastictoysplasticpensorstationery...Plasticisharmfultotheenvironment.Whatcanwedotoavoidusingtoomanyplasticproducts?FreetalkUsereusablethingsinsteadofone-timeplastics.Chooseproductswithlessplasticpackaging.Reuseplasticitems....Presentation1. global/ˈɡləʊbl/

adj.全球的;全世界的

2. produce/prəˈdjuːs/v.生产;制造3. ton/tʌn/

n.吨;大量；许多4. goods/ɡʊdz/n.商品；货品5. product/ˈprɒdʌkt/n.产品；结果6. waste/weɪst/n.&v.浪费7. affect/əˈfekt/

v.影响；使感染8. kill/kɪl/

v.杀死；导致死亡；破坏9. pollute/pəˈluːt/v.污染;弄脏

10. suffer/ˈsʌfə(r)/v.遭受;蒙受;受苦11. cheap/tʃiːp/adj.便宜的12. option/ˈɒpʃn/n.选项;选择权13. reusable/riːˈjuːzəbl/

adj.可再次使用的14. properly/ˈprɒpəli/

adv.恰当地;正确地15. solution/səˈluːʃn/

n.解决办法；溶液16.

impact

/ˈɪmpækt/（n.）

巨大影响

/ɪmˈpækt/（v.）

有作用；冲击17. reduce/rɪˈdjuːs/

v.减少;降低Reading

Fastreading.1Whatisthemainproblemtalkedaboutinthepassage?A.Airpollution.B.Plasticpollution.C.Waterpollution.

Intoday'sworld,plasticpollutionisaglobalproblem.Humansproducemillionsoftonsofplasticeveryyear.Abouthalfisforpackaginggoods.Weusemanyplasticproductsonlyonceortwicebeforetheybecomewaste.Plasticpollutionaffectsthenaturalbeautyoftheenvironment.Evenworse,millionsofanimalsarekilledbyplasticeveryyear.Plasticwillstayinthegroundforyearsandpollutethesoil,water,andplants.Ifourenvironmentsuffers,humanswilldotoo.1塑料污染数百万的2许多包装商品bekilledby被……杀死

Whycan'twejuststopusingplastic?Thinkaboutdrinkingbottlesandplasticbags.Theyareindeedeasytocarryandcheaptobuy.Buttheyarenottheonlyoption!Bringyourownshoppingbaginsteadofusingaplasticone.Carryareusablewaterbottle.Chooseproductswithlesspackaging.Learntorecycleplasticproperly.Let'sbepartofthesolution.Smallchangesinourdailyhabitswillhaveabigimpactonreducingplasticwaste.3stopdoing停止做...insteadof代替dailyhabits日常习惯

对……有很大影响4Readthepassageandwritetrue(T)orfalse(F).2APlasticwastecanstayinthegroundforyears.()BWecan'tusefewerplasticproductsbecausetheyprovideconvenience.()CThispassagedrawsattentiontoplasticpollution.()TFTReadthepassageagainandcompletethemindmap.3Lookattheplastic!Paragraph1globalplasticpollutionParagraph2harmofplasticpollutionParagraph3waystoreduceouruseofplasticproductsHumans_______millionsoftonsofplasticeveryyear.About___isforpackaginggoods.It_____animalsand_______thesoilandwater.Ifourenvironment______,humanswilldotoo.Bringyour____shoppingbag.Carrya_______waterbottle.Choose________withlesspackaging.Learntorecycle_____properly.Paragraph4smallchanges,bigimpactLet'sbe_____ofthesolution.producehalfkillspollutessuffersownreusableproductsplasticpartThinkandchoose.1.Whycan’twejuststopusingplasticeasily?Because____.A.plasticproductsarecheapandeasytocarryB.there’snoothermaterialatallC.plasticisverybeautiful2.Whatcanweinferfromthepassageaboutplasticproductslikedrinkingbottlesandplasticbags?A.Theywilldisappearfromthemarketsoon.B.Theyareconvenientbutcauseenvironmentalproblems.C.Theyaretooexpensiveforpeopletobuy.D.Theyarenotpopularamongpeople.

Workinpairs.Discussthefollowingquestionswithyourpartner.4AHowdoyousortthewaste?•vegetablepeels•fruitpeels•wastepaper•medicine•plasticbottles•usedbatteries•paintpotsBDoyouthinkitisimportanttosortwaste?Whyorwhynot?CWhatcanwedotoreducetheamountofwaste?

Workinpairs.Discussthefollowingquestionswithyourpartner.4AHowdoyousortthewaste?•vegetablepeels•fruitpeels•wastepaper•medicine•plasticbottles•usedbatteries•paintpotsvegetablepeels&fruitpeels：Theybelongtokitchenwaste(orwetwaste).wastepaper：It’srecyclablewaste.medicine：It’sharmfulwaste.plasticbottles：Theyarerecyclablewaste.usedbatteries&paintpots:Theyareharmfulwaste.

Workinpairs.Discussthefollowingquestionswithyourpartner.4BDoyouthinkitisimportanttosortwaste?Whyorwhynot?Yes,it’simportant.It’sgoodforbothresourcesaving(节约资源)

andenvironmentalprotection.CWhatcanwedotoreducetheamountofwaste?Usereusableitemsmore.Buyproductswithlesspackaging.Recyclewasteproperlyandlearntoreusethings.1.Humansproducemillionsoftonsofplasticeveryyear.人类每年产生数百万吨的塑料。1)millionsof大量；无数；数百万的，后接可数名词复数形式。

表示具体数目

结构：数字+million+可数名词复数

示例：twomillionpeople

结构：millionsof+可数名词复数

表示不确切数目

示例：millionsofstars2)tonsof大量的，许多，后面既可以接可数名词复数，也可以接不可数名词。(3)millionsoftonsof数百万吨Languagepoints

million【对点练习】1.Thecompanyhastodealwith____tonsofwastematerialseverymonth.A.millionB.millionsC.millionofD.millionsof2.—Howmanystudentsarethereinyourschool？

—Aboutthree_____.A.thousandB.thousandsC.thousandofD.thousandsof2.Evenworse,millionsofanimalsarekilledbyplasticeveryyear.更糟糕的是，每年有数百万动物因塑料而丧生。1)evenworse：意为“更糟糕的是”，在句子中用作插入语，用来引出更严重、更不好的情况，对前文所述内容进行递进补充

。在语法上，even是副词，用来修饰比较级worse，加强程度。例如：Helosthisjob.Evenworse,hegotseriouslyill.

他丢了工作。更糟糕的是，他还得了重病。2)bekilledby:被……杀死Thebirdwaskilledbyacatlastnight.这只鸟昨晚被一只猫杀死了。【对点练习】1.Theriversarepolluted.______,millionsoffishdiefromthepollutedwatereveryyear.A.EvenmoreB.EvenworseC.EvensoD.Eventhen2.heoldtree______aheavysnowlastwinter.A.killedbyB.waskilledbyC.iskilledby3.改写句子（将主动句改为被动句）Acarhitandkilledthedog.Thedogwashitandkilledbyacar.3.Whycan'twejuststopusingplastic?

我们为什么不能停止使用塑料呢？stopdoingsth.意为“停止做（正在做的）某事”易混结构“stoptodosth.”意为“停下来去做另一件事”如：Shestoppedtodrinkwater.她停下来去喝水。Shestoppeddrinkingwater.她停止喝水。2) just此处为副词，意为“仅仅；就”，用于加强语气，表达“为什么我们就不能……”的疑问，使语气更口语化。如:Whycan'tyoujustlistentome?

你为什么就不能听我说呢？【对点练习】1.

Whycan'ttheyjust______(argue)andgetalongwell?A.stoptoargueB.stoparguingC.stoppingargue2.Theywalkedforanhour,then______(have)somewater.A.stoppedtohaveB.stoppedhavingC.stoptohave3.翻译句子为什么我们就不能停止熬夜呢？它对身体不好。Whycan'twejuststopstayinglate?It'sbadforhealth.4.Bringyourownshoppingbaginsteadofusingaplasticone.自己带购物袋，不要使用塑料购物袋。insteadof代替；而不是，介词短语，后接名词、代词或动名词（doing），用来引出被替代的事物，突出“用前者替代后者”的逻辑。例如：Shealwaysbringsherownbooktothelibraryinsteadofborrowingone.她总自己带书去图书馆，而不是借书。

【对点练习】她选择步行上班，而不是开车。Shechoosestowalktowork/gotowalkonfootinsteadofdriving.5.Smallchangesinourdailyhabitswillhaveabigimpactonreducingplasticwaste.日常习惯的小改变会对减少垃圾产生重大影响。

haveabigimpacton...对……有很大影响，“impact”是名词“影响”，“on”引出受影响的对象；“big”可替换为“great”“significant”等词加强程度。也可用“small”替换，表达“轻微影响”。例句:Thisbookhasabigimpactonmyvalues.

这本书对我的价值观产生了重大影响。【对点练习】1.Technologydevelopment______abigimpact______people’sdailylifeovertheyears.A.has;onB.have;onC.has;in2.Atfirst,thenewrule______asmallimpactonstudents’dailylife,butnowit'sserious.A.haveB.hadC.has一、单项选择1．Thecompanyplanstoexpanditsbusinesstothe

marketnextyear.A．global B．cheap

C．reusable D．proper2．Thisnewmachinecan

500piecesoffurniture(家具)everyday.A．pollute B．produce

C．kill D．suffer3．Plasticbagswill

theenvironmentbadlyifwedon’tdealwiththemproperly.A．affect B．reduce

C．waste D．produce4．Toprotecttheenvironment,weareadvisedtouse

containersinsteadofdisposable(一次性的)ones.A．cheap B．reusable

C．global D．product5．It

tolearnbasiccookingskillsifyoupracticethemeveryday.A．easytodo B．iseasyfordoing

C．easydoing D．iseasy当堂检测二、用所给词的适当形式填空1．Thenew

(produce)ofthisbrandismorepopula