Unit8Lesson2课件-冀教版初中英语八年级上册

Lesson2:Lookattheplastic!Unit8ProtectingtheenvironmentLearningaims能够读懂文章，了解塑料污染的现状、危害以及减少塑料使用的方法。能够掌握本课时的单词、短语及句型。能够表达自己对垃圾分类的看法，并且能够谈论在日常生活中减少塑料使用的方法。NewWordglobal/ˈɡləʊbl/adj.全球的；全世界的produce/prəˈdjuːs/v.生产；制造ton/tʌn/n.吨；大量；许多goods/ɡʊdz/n.商品；货品product/ˈprɒdʌkt/n.产品；结果waste/weɪst/n.垃圾；浪费v.浪费pollute/pəˈluːt/v.污染；弄脏suffer/ˈsʌfə(r)/v.变差；遭受；受苦cheap/tʃiːp/adj.便宜的option/ˈɒpʃn/n.选项；选择权affect/əˈfekt/v.影响；使感染kill/kɪl/v.导致死亡；杀死；破坏reusable/ˌriːˈjuːzəbl/adj.可再次使用的properly/ˈprɒpəli/adv.恰当地；正确地solution/səˈluːʃn/n.解决办法；溶液impact/ˈɪmpækt/n.巨大影响reduce/rɪˈdjuːs/v.减少；降低v.有作用；冲击Lead-inLet’swatchavideo.Whatplasticproductsdoyouseeinyourdailylife?Whatcanwedotoavoidusingtoomanyplasticproducts?Activity1Pre-readingLookatthepictureandanswerthequestionsbelow.11.Whatcanyouseeinthepicture?2.Howdoyoufeelwhenyouseethispicture?3.Whatmaythetextbeabout?Intoday’sworld,plasticpollutionisaglobalproblem.Humansproducemillionsoftonsofplasticeveryyear.Abouthalfisforpackaginggoods.Weusemanyplasticproductsonlyonceortwicebeforetheybecomewaste.Plasticpollutionaffectsthenaturalbeautyoftheenvironment.Evenworse,millionsofanimalsarekilledbyplasticeveryyear.Plasticwillstayinthegroundforyearsandpollutethesoil,water,andplants.Ifourenvironmentsuffers,humanswilldotoo.Readthepassageandanswerthequestions.Activity2While-reading2

Whycan’twejuststopusingplastic?Thinkaboutdrinkingbottlesandplasticbags.Theyareindeedeasytocarryandcheaptobuy.Buttheyarenottheonlyoption!Bringyourownshoppingbaginsteadofusingaplasticone.Carryareusablewaterbottle.Chooseproductswithlesspackaging.Learntorecycleplasticproperly.Let’sbepartofthesolution.Smallchangesinourdailyhabitswillhaveabigimpactonreducingplasticwaste.ReadParagraph1andanswerquestions.Whatkindofpollutiondoesthetexttalkabout?A.Airpollution.B.Waterpollution.C.Plasticpollution.3ReadParagraph2andlistthebadeffectsoftheplasticpollution.①________________________________________②________________________________________③________________________________________Itaffectsthenaturalbeautyoftheenvironment.Itkillsmillionsofanimalseveryyear.Itwillpollutethesoil,water,andplants.4ReadParagraph3andfindwaystoreduceplasticpollution.①________________________________________________②________________________________________________③________________________________________________④________________________________________________Bringourownshoppingbaginsteadofusingaplasticone.Carryareusablewaterbottle.Chooseproductswithlesspackaging.Learntorecycleplasticproperly.5Readthepassageandwritetrue(T)orfalse(F).APlasticwastecanstayinthegroundforyears. （

）BWecan’tusefewerplasticproductsbecausetheyprovideconvenience. （

）CThispassagedrawsattentiontoplasticpollution. （

）TFT6Readthepassageagainandcompletethetable.7Paragraph1globalplasticpollutionHuman__________millionsoftonsofplasticeveryday.About_________isforpackaginggoods.Paragraph2harmofplasticpollutionIt_________animalsand_________thesoilandwater.Ifourenvironment__________,humanswilldotoo.producehalfkillspollutessuffersParagraph3waystoreduceouruseofplasticproductsbringyour________shoppingbag.Carrya________waterbottle.Choose__________withlesspackaging.Learntorecycle________properly.Paragraph4smallchanges,bigimpactLet’sbe________ofthesolution.ownreusableproductspartplastic

Discussabouttheplastic.Activity3Post-reading1.Whataretheadvantagesanddisadvantagesbroughtbyplastic?2.Howtodealwithplastics?8Discussion

Workinpairs.Discussthefollowingquestionswithyourpartner.AHowdoyousortthewaste?·vegetableleaves·fruitpeels ·wastepaper·medicine·plasticbottles ·usedbatteries·paintpotsBDoyouthinkitisimportanttosortwaste?Whyorwhynot?CWhatcanwedotoreducetheamountofwaste?9Languagepoint11.Humansproduce

millionsof

tonsofplasticeveryyear.人类每年生产数百万吨塑料。(1)producev.生产；制造productn.产品；结果productionn.生产；产量e.g.Thefactoryproducescars.这家工厂生产汽车。Theyputanewproductonthemarket.

他们向市场推出了一款新产品。Thousandsofmenwereemployedintheproductionofcars.成千上万的人被雇来生产汽车。(2)millionsof数百万e.g.Thereareoveramillionbooksinthelibrary.

图书馆里有超过一百万册书籍。Therearethreethousandstudentsinthisschool.这所学校有三千名学生。Theprojectwillsavebillionsoftrees.

这个项目将拯救数十亿棵树。

类似的还有hundredsof成百上千的；thousandsof成千上万的；billionsof数十亿的注意：当million前有不定冠词a或者基数词修饰时，million不加s如fivemillion五百万(3)tonn.吨；大量；许多ton作可数名词，意为“吨”。tonsof意为“大量，许多”，后接不可数名词或可数名词复数，相当于alotof或lotsof。e.g.Anelephantweighsaboutseveraltons.

一头大象重达几吨。

Ihavetonsofworktodobeforethedeadline.

在截止日期之前，我有很多工作要做。

Truckscancarrymanytonsofgoods.

卡车可以运载很多吨货物。2.Weusemanyplasticproductsonlyonceortwicebeforetheybecomewaste.许多塑料制品在成为废物之前，我们只使用过一两次。(1)分析结构：这是一个含有before引导的时间状语从句的复合句。Weusemanyplasticproductsonlyonceortwice是主句：We是主语；use是谓语；manyplasticproducts是宾语；onlyonceortwice是状语。beforetheybecomewaste是时间状语从句：they是从句主语；become是从句谓语；waste是从句宾语。e.g.Weshouldleaveimmediatelybeforeitstartsraining.

我们应该在下雨前立刻离开。IwillnotwatchTVuntilIfinishmychores.

我做完家务后才会看电视。Languagepoint2(2)waste①n.垃圾；浪费e.g.Throwingawayfoodis‌awasteof‌money.

扔掉食物是‌浪费钱‌。waste②v.浪费（

反义词：save）常见搭配：wastesth.onsb./sth.在某人/某事上浪费某物wastesth.(in)doingsth.浪费某物做某事e.g.Don’t‌waste‌food;manypeoplearehungry.

别‌浪费‌食物，很多人还在挨饿。Don’twasteyourtimeoncomputergames!

别把时间浪费在电脑游戏上!Mysisterwastesmoneyincollectingerasers.

我妹妹浪费钱收集橡皮擦。3.Plasticwillstayinthegroundforyearsandpollutethesoil,water,andplants.塑料会在地里存留多年，污染土壤、水和植物。pollutev.污染；弄脏e.g.Thelakehasterriblewaterpollution.这个湖有严重的水污染。pollutionn.污染air/noise/water/lightpollution空气/噪音/水/光污染e.g.Yourcarwillpollutelessifyoudriveslowly.

慢速驾驶能减少汽车污染。polluted

adj.受污染的e.g.Canpollutedwaterbecleaned？被污染的水能净化吗？Languagepoint3Languagepoint44.Ifourenvironmentsuffers,humanswilldotoo.如果我们的环境受到损害，人类也将受到损害。sufferv.变差；遭受；受苦sufferfrom…受（某种病痛）折磨；因……而受苦e.g.Childreninthewararesufferingfromgreatfearandhunger.

战争中的孩子们正承受着巨大的恐惧和饥饿的折磨。Manystudents‌sufferfrom‌anxietybeforeexams.

许多学生在考试前‌感到焦虑‌。5.Theyareindeedeasytocarryandcheaptobuy.它们的确携带方便并且价格便宜。cheapadj.便宜的e.g.Thatstorealwayshascheappricesonclothes.

那家商店的衣服价格总是很便宜。形容某物价格高低要用high/low，不能用cheap/expensive。high/low更直接地描述了价格水平的高低，而cheap/expensive则更多的是从消费者的主观感受出发，描述物品是否便宜或昂贵。反义词：expensive/dear“昂贵的”Languagepoint5Languagepoint66.Buttheyarenottheonlyoption!但它们并不是唯一的选择！optionn.选择；选择权havetheoptionofdoing/todosth有做某事的选择（权）havenooptionbuttodosth别无选择，只能做某事=havenochoicebuttodosthe.g.Students‌havetheoptionof‌joiningtheartcluborthemusicclub.

学生‌可以选择‌参加美术社或音乐社。

‌Ifyoudon’tlikethecolor,youhavetheoptiontoreturnit.

如果你不喜欢这个颜色，你有权退货。Sincethewaterwaspolluted,theyhadnooptionbuttobuybottledwater.‌

水被污染了，他们只能买瓶装水。‌7.Learntorecycleplasticproperly.学会恰当地回收塑料。properlyadv.恰当地；正确地e.g.Makesuretheletterisproperlyaddressed.

一定要正确书写信上的地址。反义词：improperadj.不正确的；不合适的e.g.It’simpropertomakeloudnoisewhileeating.

吃饭的时候弄出很大的声音是不合适的。properadj.正确的；恰当的e.g.Alwayswearpropershoesforsports.

运动时要穿合适的鞋子。Languagepoint7Languagepoint88.Smallchangesinourdailyhabitswillhaveabigimpacton

reducingplasticwaste.我们常习惯中的小小改变将对减少塑料垃圾产生巨大的影响。(1)分析结构：这是一个简单句。主语是Smallchangesinourdailyhabits，其中inourdailyhabits是介词短语作后置定语，修饰Smallchanges，说明变化的方面；谓语是willhave；宾语是abigimpact，onreducingplasticwaste是介词短语作后置定语，修饰impact，说明影响的具体领域。e.g.Recyclinghasanimpactontheenvironment.

回收利用对环境有影响。②v.有作用；冲击e.g.Factoriesoftenimpactthecleanwaterinrivers.

工厂经常影响河流里的干净水源。(2)impact①n.巨大影响havea(n)impacton意为“对……有很大影响”。e.g.Theyreducedthepriceofthebook‌to‌10yuan.

他们把书的价格‌降到了‌10元。

Wereducedourwaterusage‌by‌half.

我们‌减少了一半‌的用水量。(3)reducev.减少；降低常见搭配：reduce…to…(把……)减少到了……reduce…by…(把……)减少了……SummaryWords:global,produce,ton,goods,product,waste,affect,kill,pollute,suffer,cheap,option,reusable,properly,solution,impact,reducePhrases:millionsof…,haveabigimpacton…Sentence:In