Unit2Topic3课文详解课件仁爱版九年级英语上册

Unit2Topic3点击此处输入副标题SectionA(AjournalistisinterviewingJaneaboutenvironmentalprotection.)Journalist:HiJane.CouldIaskyouafewquestions?Jane:Certainly.Journalist:Weallknowthatyou’reworkingforanorganizationthatprotectstheenvironment.Canyoutelluswhatyouaredoingthere?Jane:Well,mymainjobistohelpspreadthemessageaboutprotectingtheenvironment.

Forexample,therearethreeR’s---reduce,reuseandrecycle---areimportant.Journalist:Sowhatcanwedoathometoprotecttheenvironment?Jane:Weshouldreducethewasteweproduce.Forexample,weshouldusebothsidesofpaperandreuse

plasicbags.be+V.ing现在进行时正在采访n.保护protectv.保护Could的问句，语气委婉，用can/can’t回答当然afew一些（+可数名词复数）few几乎没有我们都知道你正在为一家保护环境的机构工作。tellsb.sth.告诉某人

某事adj.主要的动词不定式，做宾语例如减少重复使用循环利用减少我们制造出来的浪费……的两面重复使用塑料袋forexample和suchas的区别1.意思相同，“例如”（1）Forexample,therearethreeR’s---reduce,reuseandrecycle---areimportant.例如，这有三个R，都很重要，分别是减少，重复使用和循环利用，这是重要的。（2）

Inmanycountries,

suchas

NewZealand,CanadaandBrazil.在很多国家，例如新西兰，加拿大和巴西。2.位置不同forexample+,再加例子,+suchas直接加例子__________,someboylikeeating,whileotherslikeplayingsports.Ilovemanyfruit,_________apples,mangoandbanana.Journalist:Whatcanstudentsdoatschool?Jane:Recyclingcanprotecttheenvironment,anditcansavemoney,too.

Soweencouragestudentstocollectwastepapersandsoftdrinkcans.Thenwesortthemsothattheycanberecycled.Journalist:Wonderfulideas!Thankyou!Jane:It’sapleasure.recycle循环利用--recycling存钱too“也”放在肯定句句末either“也”放在否当句句末所以我们鼓励学生收集废纸，和软饮料的瓶子。encouragesb.todosth.鼓励某人做某事can能，会n.瓶子荣幸Mypleasure我的荣幸并列句连词or,and,but

和while的用法①表示并列关系，用and…②表转折，用but,while…③表选择，用or…SectionBJane:Hi,Michael.Wouldyouliketobeagreenerperson?Michael:Ofcourse,I'dloveto.ButwhatshouldIdo?Jane:First,yououghttoshutofftheelectricitywhenyouleavearoom.Michael:Oh,that’seasy.What'snext?Jane:Second,

you'dbetterwalkorrideabikeinsteadoftakingabusorataxiifyoutravelashortdistance.你想成为一个环保的人吗？当然，我想啦oughtto=should应该shutoff关闭离开you’dbetter+动词原形=youhadbetter+动词原形insteadof相反+动词ing短距离Michael:That'sright.Itwillsaveenergyandreduceairpollution.Jane:Third,takeaclothbagwhenyougoshopping.Don'tuseplasticbags.Michael:It'ssoeasytobeagreenerperson.Jane:Easiersaidthandone.Michael:Well,actionsspeaklouderthanwords.它能节约能量和减少空气污染。带上环保袋clothn.布不要用塑料袋成为一个环保的人如此的简单。说的比做的容易。行动比说话更有力。/行动胜于言辞。Whatshouldyoudoifyouwouldliketobeagreenerperson?Youshould

sortthegarbage.=Yououghttosortthegarbage.Languagepointsoughtto应该情态动词oughtto+动词原形oughtnotto+动词原形Youshould/oughtto

…shutoff

theelectricityn.电，电能关闭Languagepointse.g.Youshould/oughttoshutofftheelectricitywhenyouleavearoom.Youshould/oughttorideabiketoyourschool.

Youshould/ought

totakeabustoschoolinsteadoftakingataxi.Youshould/ought

totakeaclothbagwhenyougoshopping.LanguagepointsYou____________(应该)throwtherubbishintothegarbage.Youshould____________(关闭)theelectricitywhenyouleavearoom.You’dbetterwalkorrideabike___________(代替)takingabusorataxiifyoutravelashortdistance.It’sso______(容易)tobeagreenerperson.______________________________.(行动胜于言辞)Exercisesoughtto

shutoffinsteadofeasyActionsspeaklouderthanwordsIt’san

electriccar.Itworkswell,butit’sslowandcan’trunforlong.

electric电的(adj.)—electricity(n.电能)

Doyouknowthem?Doyouknowit?

It’samaglevtrain.Itsadvantagesarequiet,fastandclean,butit’stooexpensive.磁悬浮列车n.技术Doyouknowit?Chinaisoneofthefirstcountriesintheworldtousebiogas

technology.沼气SectionCInmanycountriespeopleproducepowerfromcoal,butitisverydirtyandcauses

acidrain.Somecountriesusenuclearenergy

toproducepower.However,nuclearpowercanbeverydangerous.Tosolvetheenergyproblem,peopleallovertheworldarelookingfornewwaystoproduce

power.Chinaisoneofthefirstcountriesintheworldtousebiogastechnology.

Farmersrecyclestraw,grassandanimalswatsetomakebiogas.Thisrenewableenergyisusedinpeople'severydaylives.Itskey

disadvantageisthattheprocess

requiresalongtime(upto30days)andthecostishigh.

酸雨核能源全世界lookfor寻找

（强调过程）find寻找

（强调结果）方法oneof+the+最高级+可数名词天然气技术农民会循环利用稻草，草和动物的排泄物去制造天然气。adj.每天

的adv.everyday每天adj.重要的disadvantagen.缺点advantagen.优点可再生的过程需要Electricvehiclesweredevelopedinthe1990s.OnApril11,2010,anewkindofelectricvehiclenamed“Yezi”

wasshowninthe2010ShanghaiWorldExpo.Itproduceselectricityfromthesun,thewindandC02.Itcannotonlyprotecttheenvironmentbutalsosaveenergy.It'stoosmalltoholdmanypeople,but

largermodelswillbedevelopedinthenearfuture.InChina,thebest-knownmaglev

trainistheGerman-built

oneinShanghai.Ittakespeoplejust7minutestogototheairport30

kmaway.

Thetraincanreachatopspeedof431kmperhour.Itisquietandquick.Thereisnowheelnoise,becausetherearenowheels.Maglevtrainsareveryenergy-efficientanddonotpollutetheair.However,

maglev

guidepaths

aremuchmoreexpensive

thantraditionalsteelrailways.电一种新的被展出be+过去分词“被……”上海世博会不仅而且它太小了，不能容纳很多人。更大的模型在不远的将来Ittakessb.时间、金钱+todosth做某事花费某人时间、金钱去30千米以外的机场，只要七分钟。达到最高速度每没有车轮的噪音节能的磁悬浮列车引导的道路非常昂贵钢铁铁路steeln.钢ironn.铁German

n.德国人，德语Germanyn.德国pl.

Germans

wheeln.轮，车轮，轮子E.g.TheyareGermans,andtheyarefromGermany.

languagepoints2aReadthepassagebelowandmatchthepictureswiththesentences.Thendiscussindetailtheuseofoneenergysource.

Thesun,wind,wavesandheatfromdeepintheearthareenergysources.Theywillneverrunoutsotheyarecalledrenewablesources.In2011,about16%ofenergyusedworldwidecamefromrenewablesources.Theuseofitisincreasingrapidlyeachyear.

deepadj.深的，厚的adv.深深地，在深处runout用完，耗尽E.g.Hehasrunoutoffood,sohischildrenarehungry.GrammarCompoundSentence

Recyclingcanprotecttheenvironment,_______itcansavemoney,too.Somethingswehavedonearegoodfortheearth_________somearebad.Weshoulddoeverythingtoprotectit,________we’llbepunishedandloseourhome.…peopleproducepowerfromcoal,_______itisverydirtyandcausesacidrain.andwhile

orbut()1.Helpotherswheneveryoucan_____you’llmaketheworldanicerplacetolivein.A.or B.and C.butD.while()2.Crosstheroadcarefully,________you’llkeepyourselfsafe.A.so B.or C.butD.and()3.Hurryup,________you’llbelatefortheconcert.A.or B.so C.butD.and()4.---TellussomethingaboutCanada,OK?---I’msorry.________Jack_______Ihaveeverbeenthere.A.Either,orB.Notonly,butalsoC.Both,andD.Neither,nor()5.IalwaysenjoyvisitingLondon,______Iwouldn’tliketolivethere.A.becauseB.so C.but D.andChoosethebestanswer.BDADCSectionDForestarethelungsoftheearth.Withoutthem,itcannotbreathe.Itneedsitsforeststor