Unit2Topic3SectionC課件九年級(jí)英語上冊(cè)

Unit2SavingtheEarthTopic3Whatcanwedoathometoprotecttheenvironment?SectionC1.Somewords:technology,wheel,steel,require,German,guide,deep2.Somephrases:runout3.Somesentences:(1)Inmanycountries,peopleproducepowerfromcoal,butitisverydirtyandcausesacidrain.(2)Theywillneverrunoutsotheyarecalledrenewablesources.4.Talkabouttheadvantagesanddisadvantagesofsomekindsofenergy.Learningaims1.做一個(gè)環(huán)保使者2.應(yīng)該做某事3.不應(yīng)該做某事4.代替5.節(jié)省能量6.帶一個(gè)布包7.關(guān)掉停止工作8.畢竟9.說起來容易做起來難10.行動(dòng)勝于言語11.喊著求助1.beagreenerperson2.oughttodosth.=shoulddosth.3.oughtnottodosth.=shouldn'tdosth.4.insteadof(doingsth.)5.saveenergy6.takeaclothbag7.shutoff=turnoff8.afterallRevision9.Easiersaidthandone.10.Actionsspeaklouderthandone.11.cryforhelpReadingPractice1.Accordingtothepassage,whichofthefollowingisTRUE?_______A.ThemaglevtrainwasbuiltinShanghai.B.Wecantakemaglevtraineverywhere.C.Maglevtrainscausenonoise.D.Maglevtrainsonlyhaveadvantages.2.Fromthepassage,thewriterwantstotellus_______.A.thedisadvantagesofusingcoalB.weshoulduserenewableenergytosolveenergyproblemsC.everycoinhastwosidesD.Chinaisgoodatproducingpower3.Theunderlinedphrase“runout”inparagraph2means_______inChinese.A.用光B.跑出去C.生產(chǎn)D.制作4.Therenewableenergyrefersto________inthepassage.A.NuclearpowerB.MaglevtrainC.ElectricvehicleD.Biogas5.Ifweputthepassageintotwoparts,whichofthefollowingstructureisthebest?________A.Para.1

Para.2B.Para.3Para.4Para.1Para.2Para.3

Para.4C.Para.1Para.2Para.3Para.4CBADAparagraph2

paragraph3

Paragraph4

1a.Lookatthepictures.Doyouknowwhattheyare?Choosetherightpictureforeachparagraph.1b.Read1aandmatchthewordswiththepicturesonPage48.A.acidrain B.nuclearenergy C.biogasACBItemAdvantageDisadvantagebiogas

electricvehicle

maglevtrain

renewablelongprocessandhighcostsaveenergy,nopollutiontoosmalltoholdmanypeople

quiet,quick,energy-efficient,nopollution

muchmoreexpensiveKeypoints1.bethefirst/second/+n.+todosth.是第一個(gè)做某事的

bethelast+n.+todosth.

是最后一個(gè)做某事的.eg.Chinaisthefirstcountrytorealize5Gtechnology.2.usesth.todosth.=usesth.for(doing)sth.使用某物做某事3.in+the+年份s/’s在幾世紀(jì)幾十年代eg.inthe1980sinthe2010’s4.requirev.需要，需求1)sth.+require+(doing)sth.“某事需要被做”主語是物，用動(dòng)詞ing形式表被動(dòng)。e.g.Thefloorrequirescleaning.2)requre/need+sth./todosth.“需要(做)某物”eg.Irequre/needsomewater.3)requiresb.todosth.=asksb.todosth.要求某人做某事eg.Mymotherasks/requiresmetobuysomesaltforher.

Keypoints5.costv.花費(fèi)

(costcostcost)sth.costtoomuch/toolittle.譯為“花費(fèi)多/少”。sth.costsb.+錢（做謂v.時(shí)，主語必須是物）

eg.ThegoldwatchcostMrs.Zhou30thousandyuan.costn.成本用high/low來修飾。eg.Thecostofthegoldwatchistoohigh.=Thegoldwatchcoststoomuch.6.upto達(dá)到7.notonly...butalso.../neither...nor.../either...or...在連接兩個(gè)主語時(shí)，采用“就近原則”。eg.NeitherInorheisatschool.Eitherheoryouareinthedinninghall.NotonlyshebutalsoIamontheplayground.▲both...and...連接主語時(shí)，用作復(fù)數(shù)。eg.BothIandheareathome.Keypoints8.holdv.容納，抓住，舉行holdon,please.別掛斷，請(qǐng)稍等。eg.1.TiananmenSquarecanholdaboutonemillionpeople.

2.Holdthebabyaminute,please.

3.Theywillholdameetingtodiscusstheproblemtomorrow.9.too+adj.+todosth.太而不能（常與以下句型作同義替換）not+adj.(用原句的反義詞）+enough+todosth.so+adj./adv.+that從句such+(a/an)+...+n.+that從句eg.Thedinninghallissosmallthatitcan’tholdfiftypeople.=Thisissuchasmalldinninnghallthatitcan’tholdfiftypeople.=Thedinninghallistoosmalltoholdfifitypeople.=Thedinninghallisn’tbigenoughtoholdfiftypeople.10.It+takes+(sb.)+time+todosth.

人+spend+time+onsth./(in)doingsth.Keypoints▲.

人+spend+money+onsth./(in)doingsth.

人+pay+money+forsth.

物+cost+(sb.)+money11.oneof+可數(shù)名詞復(fù)數(shù) ……之一12.lookfor尋找，強(qiáng)調(diào)動(dòng)作find找到，強(qiáng)調(diào)結(jié)果findout發(fā)現(xiàn)，查明真相；著重表示通過理解、分析、思考、詢問等“弄清楚”“查明”一件事情，某個(gè)情況、事實(shí)eg.welookedforhimeverywhere，butdidn'tfindhim.Pleasefindoutwhenthetrainleaves．13.alittle,abit,alot,much,even,still,rather等修飾形容詞時(shí)，形容詞可用比較級(jí).14.one(單數(shù))/ones(復(fù)數(shù))表同類異物。it/they表同類同物。that(單數(shù)/不可數(shù))/those(復(fù)數(shù))那個(gè)/那些，表前面提到的事物，避免重復(fù)。Keypointseg.1.HehasanicecoatandIhaveaniceone,too.2.MyMP3isold,butIstilllikeitverymuch.3.ThefoodinChongqingisquitedifferentfromthatinGuangdong.15.no=not...any+不可數(shù)/復(fù)數(shù)名詞no=not...a+單數(shù)名詞16.runout/runoutof用完，耗盡runout主語為物，且無被動(dòng)。runoutof主語為人eg.Ourfoodhasalreadyrunout.=Wehavealreadyrunoutofthefood.17.reachaspeedof+具體速度，

達(dá)到某個(gè)速度ataspeedof+具體速度，

以某個(gè)速度18.Germann.德國人，德語(pl.Germans)Germanyn.德國

Thesun,wind,wavesandheatfromdeepintheearthareenergysources.Theywillneverrunoutsotheyarecalledrenewablesources.In2011,about16%ofenergyusedworldwidecamefromrenewablesources.Theuseofitisincreasingrapidlyeachyear.2a.Readthepassagebelowandmatchthepictureswiththesentences.Thendiscussindetailtheuseofoneenergysource.Windcanproduceelectricityinmanyplaces.Peopleusesunlighttoproduceelectricity.Seawavesareusedforproducingelectricity.Peopleusehotwaterorsteamfromdeepintheearthtoproduceelectricityandheatforfactories,schoolsandhomes.（2）（4）（1）（3）2b.Takenotesonyourdiscussionandwriteapassagewiththem.

Youmaybeginlikethis:Sunlightcanproducealotofenergy.Peoplebegantousetheenergyfromthesunlightindifferentwaysmanyyearsago…

Sunlightcanproducealotofenergy.Peoplebegantousetheenergyfromthesunlightindifferentwaysmanyyearsago.Wecanuseittowarmthehouseinthewinter,toheatthewaterforbaths,andtoproduceelectricity.What’smore,wecanevenuseittorunvehiclesdirectlyinthenearfuture.Asisknowntous,theenergyfromthesunlighthasalotofadvantages.Forexample,itisclean,renewableandnon-polluting.Besides,itdoesnoharmtoournature.Sowe’dbetteruseitasmuchaspossible.Youcanwriteitlikethis:Exercisesinclass

1.使用某物做某事

2.全世界

3.尋找

4.不但...而且

5.太...而不能做某事

6.花費(fèi)某人多長時(shí)間做某事

7.是第一個(gè)做某事的多少數(shù)量11.用完，耗盡12.……之一1.usesth.todosth.=usesth.for(doing)sth.2.allovertheworld3.lookfor4.notonly...butalso...5.too+adj.+todosth.6.It+takes+(sb.)+time+todosth.7.bethefirst/second/+n.+todosth.8.sth.+require+(doing)sth.9.requiresb.todosth.=asksb.todosth.10.upto11.runout/runoutof12.oneof13.reachaspeedof+具體速度14.ataspeedof+具體速度Exercisesinclass1.Weallknowthatlearningalanguage_________timeandeffort.2.Wethinkhumanbeingsmayliveonthemooninthefuture.________,nooneissureaboutit.3.-Whatdoyouthinkofyournewclassmate?-She________hasgoodgrades_______isgladtohelpothers.A.too...toB.notonly...butalsoC.both...andD.so...that4.-Doyoutakeexerciseeveryday?

-Yes.Itusually________meabouthalfanhourtodothat.5.-Doyouthinkfreshwatercan________onearthoneday?

-I'mafraidso,ifpeopledon'tsaveit.A.takeout

B.gooutC.runoutD.putout6.AfarmerinEnglandusedanimalwaste______hiscar.7.Electriccarsworkwell,____theya