SectionA(2a-2d)Unit13We’resavingtheworld. 学习目标Keywords&phrases:coal,ugly,advantage,cost,wooden,plastic,takeaway,bin.Keysentences:1.Theairhasbecomereallypollutedaroundhere.2.Ouractionscanmakeadifferenceandleadtoabetterfuture!Tothinkaboutwaysofprotectingtheenvironment. Warming-upLet'senioyavideo! While-listening2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.A.landpollutionB.airpollutionC.noisepollutionD.waterpollution 2bListenagainandcompletethesentences.1.Theairisbadlypollutedbecausethereare_____________ontheroadthesedays.2.Factoriesthatburncoalalso___________theairwithalotofblacksmoke.3.Thereisalsotoomuchrubbishandwaste.People________________thingseveryday.4.Peoplearealsolitteringin________________likeparks.Thisisturningbeautifulplacesintouglyones.morecarspollutearethrowingawaypublicplaces Listenandread.Interviewer:Todaywe’retalkingtoJasonandSusanaboutenvironmentalproblems.JasonandSusan,canyoutellusaboutsomeoftheproblemsyou’veseen?Jason:Ithinkoneproblemisthattheairisbadlypolluted.Ihardlyeverseeblueskiesanymore.Susan:Yes,andIusedtoseethestarsclearly.Interviewer:Whatdoyouthinkhascausedthisproblem?Susan:Well,therearemorecarsontheroadthesedays.Let'sread Jason:Andfactoriesthatburncoalalsopollutetheairwithalotofblacksmoke.Interviewer:Whatotherproblemsdoyousee?Susan:Iguessthere’stoomuchrubbishandwasteinthestreets.Jason:Yes!Everydaypeoplearethrowingawaythingslikewoodenchopsticks,plasticbowlsandplasticbags.coaln.煤；煤块woodenadj.木制的；木头的plasticadj.塑料的n.塑料；塑胶 Susan:They’realsolitteringinpublicplaces,forexample,duringpicnicsinparks.Thisisturningbeautifulplacesintouglyones.Interviewer:You’reright.Theseareseriousproblemsforourenvironment.Next,let’stalkaboutthethingswecandotohelp.uglyadj.丑陋的；难看的 2cUsetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.Theairhasbecomereallypollutedaroundhere.I’mgettingveryworried.Yes,Iusedtobeabletoseestarsinthesky.Theproblemisthat...Post-listening Weshouldwalk,rideabike,takethebusorsubwayinsteadofdriving.Whatareyourideasforsolvingtheproblemofairpollution?insteadof代替；而不是 Weshouldplantmoretrees.Whatareyourideasforsolvingtheproblemofairpollution? Useyourownchopstickswhenyoubuytakeawayfood.takeawayn.外卖食物Whatareyourideasforsolvingtheproblemofwastepollution? Weshouldbringabagwhenwegoshopping.Weshouldn’tuseplasticbagsandthrowthemeverywhere.Whatareyourideasforsolvingtheproblemofwastepollution? Weshouldthrowrubbishinthe（right）bins.binn.垃圾箱Whatareyourideasforsolvingtheproblemofwastepollution? Role-playtheconversation.2dInterviewer:JasonandSusan,whatareyourideasforsolvingtheseproblems?Jason:Well,tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.Susan:Yeah,orrideabike.Thereareotheradvantagesofbikeriding.It’sgoodforhealthanditdoesn’tcostanything!Interviewer:Greatideas!Whataboutwastepollution? Susan:Mmm,Ithinksimplethingslikebringingabagtogoshoppingcanhelp.Istarteddoingthatayearago.Jason:Me,too.Also,InevertakewoodenchopsticksorplasticforkswhenIbuytakeawayfood.Iusetheonesathome.Susan:Andremembertothrowrubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryone.Interviewer:Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture! Readtheconversationin2dandfillinthechartbelow.PollutionWaystosolvetheproblemAirpollutionWastepollutionRideabike,takethebusorsubwayinsteadofdriving.Bringabagtogoshopping.Don’ttakewoodenchopsticksorplasticforkswhenyoubuytakeawayfood.Throwrubbishinthebins. Let'swatchavideo! Languagepoints1.Thereareotheradvantagesofbikeriding.(教材P982d)advantage/ədˈvɑːntɪdʒ/,/ədˈvæntɪdʒ/n.优点；有利条件advantage作名词，其反义词为disadvantage“缺点；不利条件”。takeadvantageof...意为“利用……”。Beforemakingyourdecision,youshouldconsidertheadvantagesanddisadvantages.Whenpossible,takeadvantageofthistimetoenjoytheniceweather. 2.It’sgoodforhealthanditdoesn’tcostanything!(教材P982d)cost/kɒst/,/kɔːst/v.花费cost在此处作动词，其过去式和过去分词均为cost。Thewatchcostme200yuan.【拓展】cost还可作名词，意为“花费；价钱”。Couldyoutellmethecostofthetrip? 【易混辨析】cost,spend,take与pay例词主语宾语常用结构cost物金钱sth.cost(s)(sb.)somemoney某物花费(某人)多少钱spend人时间或金钱sb.spend(s)sometime/moneyonsth.某人花费时间/金钱在某事/物上sb.spend(s)sometime/moneydoingsth.某人花费时间/金钱做某事take常用it作形式主语时间ittakessb.sometimetodosth.做某事花费某人多长时间pay人金钱sb.pay(s)somemoneyforsth.某人为某物付费 Exercises一、单项选择1.—Therearealotof______ofbikeriding.—Iagree.It’sgoodfortheenvironmentanditsavesmoney.A.instructionsB.instrumentsC.advantagesD.products2.MyteacherhasgivenmeusefulsuggestionsandIwanttothankhimfromthe_______ofmyheart.A.bottomB.conditionC.wayD.surfaceAC 二、根据汉语提示完成句子1.为了孩子们的发展，应该减少他们周末的学习课程。(cut)Forchildren’sdevelopment,theircoursesonweekendsshould______________.2.我们的行动会产生很大的影响。Ouractionwill_______________________.3.他们打算骑自行车，而不是开车。They’regoingtorideabike____________drivingacar.4.每个人都应该在环保方面发挥作用。Everyoneshould______________theenvironmentalprotection.makeabigdifferenceinsteadofbecutdownplayapartin Homework1.PreviewthepassageinSectionA3a.3.Dotheexercisesinstudents’book.