【課件】九年級上冊Unit 2 Topic 2 Section C

Unit2SavingtheEarth

Topic2Alltheseproblemsareveryserious.

SectionC(1)________ofusknowshowtostopthebadbehavior.(2)Iknockedonthedoorbut___________answered.(3)Someofthesebooksarebetterthan__________.(4)Shewasdrivingthecarwithonehandandwipingthewindowwiththe_______.(5)TheyarebeautifulbutIamlookingfor___________useful.(6)Isthere___________youcandotohelpher?(7)There’re5000peoplelivinghereandalmost_________hashis/herowncar.(8)He’sclevererthan____________Iknow.(9)I’velooked__________butIcan’tfindit.Fillintheblanksusing

something,anything,others,nobody,everyone,anybody,everywhere,none,other.ReviewNonenobodyothersothersomethinganythingeveryoneanybodyeverywhereTrytoreadthenewword:[`n??we?(r)][??ks?d?(?)n][h??l][`??z??n`lei?(r)][`ka:(r)b?ndai`a:ksaid][re?d??e??(?)n][d?'rektli][f??(r)m][?bl??k?t][?'ske?p][ra?z][r??f??tu][???(r)tid?][??v??d][ri:`s??s][d?s'k?v?][ri??ju?z]['θ??sti][ni?li][l??]

短語：拿走

溫室效應(yīng)

無處

氧氣

洞，坑

臭氧層nowhereoxygenholeozonelayer

二氧化碳

放射，放射物

直接地

（使）形成

carbondioxideradiationdirectlyform

毯子

逃跑

上升，起床

涉及到

不足，缺少

blanketescaperiserefertoshortage防止，避免

資源，財力

發(fā)現(xiàn)

再次使用

缺水的，口渴的avoidresourcediscoverreusethirsty幾乎

法律nearlylaw

takeawaythegreenhouseeffect11.拿走

2

[??ks?d?(?)n]3.

ozonelayer4.[h??l]

5.[d??'rektli]6.[re?d??e??(?)n]7.

carbondioxide8.

[?bl??k?t]9.

[f??(r)m]10.[ra?z]11.[?‘ske?p]12.溫室效應(yīng)13.提到，涉及，有關(guān)

takeaway

hole洞臭氧層

oxygen氧氣二氧化碳radiation放射

directly直接地

blanket毛毯

form出現(xiàn)，形成，種類

rise上升，起床，升起

escape逃跑

thegreenhouseeffectrefertoInourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?

cities,pollute,healthproblems

factories,thelandandtheair,deadInourdailylife,weshouldfacemoreenvironmentalproblems.

Canyousaysomethingaboutthem?

cutdown,millionsof,

takeawaytheearth,becomedesert拿走Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?

oxygen

aspecialkindofoxygencalled“ozone”(O3)氧氣

averybigholeintheozonelayer,toomuchharmfulradiationfromthesun臭氧層放射，放射物n.洞，坑v.出現(xiàn)，形成n.種類，形式Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?CO2

carbondioxideincreasealot,forma“blanket”,theheatfromthesuncan’tescape二氧化碳毛毯，毯子滲出；逃跑；逃脫

causetheleveloftheseatorisecalled“thegreenhouseeffect”or“globalwarming”v.上升；起床；升起溫室效應(yīng)fewertreesfactorypollutiontrafficpollutiontheozonelayermorecarbondioxide1aReadandunderstand.Lookatthefollowingphrases,thentrytomatchthemwiththepictures:

5.fewertrees2.factorypollution1.trafficpollution4.theozonelayer3.morecarbondioxide1aReadandunderstand.Readthefollowingphrases,thentrytomatchthemwiththepictures:

Theearthis4.6billionyearsold.Wehumanshavelivedontheearthforonly35000years,butduringthisperiod,wehavechangedourplanetalotinmanyways.Somethingswe’vedoneareverygoodfortheearthwhilesomearebad._____________Allovertheworld,peoplehavecutdownmillionsoftrees.Whenitrainsorwhenthewindblows,theearthistakenaway.Forestshave

becomedeserts,somany

kindsofanimalsandplantsaredisappearing._________________Inbigcities,carsandbuseshavepollutedtheair.Nowmanypeopleincitieshavehealthproblems.________________Factorieshavealsopollutedthelandandthewater.Asaresult,manyriversandlakesarenowdead.______________Aroundtheearth,there’saspecialkindofoxygencalled“ozone”(O3).Itisimportanttotheearth.Butnowairpollutionisdestroyingitandmakingaverybigholeintheozonelayer.Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.Thisisverydangerousbecausethiskindofradiationcancausecancer._________________Conbondioxide(CO2)intheairhasincreasedalot.Itmainlycomesfromburningoil,coalandwood.Thishasformedablanketaroundtheearth.Theheatfromthesuncan’tescapesothetemperatureisrising.Thisiscalled“thegreenhouseeffect”.Itcausestheleveloftheoceanstoriseandtheclimateoftheearthtochange.Alltheseproblemsareveryserious,sowemustdosomethingnow.FactoryPollution

TheOzoneLayerMoreCarbonDioxideChoosesuitabletitlesforParagraphs2-6.Thenwriteitdowninfrontofeachparagraph.Theearthis4.6billionyearsold.Wehumanshavelivedontheearthforonly35000years,butduringthisperiod,wehavechangedourplanetalotinmanyways.Somethingswe’vedoneareverygoodfortheearthwhilesomearebad._________Allovertheworld,peoplehavecutdownmillionsoftrees.Whenitrainsorwhenthewindblows,theearthistakenaway.Forestshave

becomedeserts,somany

kindsofanimalsandplantsaredisappearing.FewerTreesA.TrafficpollutionB.FactorypollutionC.FewertreesD.TheozoneholeE.MorecarbondioxideTask1

____________Inbigcities,carsandbuseshavepollutedtheair.Nowmanypeopleincitieshavehealthproblems._____________Factorieshavealsopollutedthelandandthewater.Asaresult,manyriversandlakesarenowdead._____________Aroundtheearth,there’saspecialkindofoxygencalled“ozone”(O3).Itisimportanttotheearth.Butnowairpollutionisdestroyingitandmakingaverybigholeintheozonelayer.Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.Thisisverydangerousbecausethiskindofradiationcancausecancer.

TrafficPollutionFactoryPollution

TheOzoneLayer直接地

________________Carbondioxide(CO2)intheairhasincreasedalot.Itmainlycomesfromburningoil,coalandwood.Thishasformedablanketaroundtheearth.Theheatfromthesuncan’tescapesothetemperatureisrising.Thisiscalled“thegreenhouseeffect”.Itcausestheleveloftheoceanstoriseandtheclimateoftheearthtochange.Alltheseproblemsareveryserious,sowemustdosomethingnow.MoreCarbonDioxide1bRead1aagainandcompletethefollowingtasks.2.Whatdoesourplanetmeanhere?

A.Thesun.

B.Mars.

C.Themoon.

D.Theearth.3.Inthepassage,blanketrefersto

____.

A.carbondioxidearoundtheearth

B.theozonelayerinthesky

C.theforestsaroundtheworld

D.pollutionallovertheworld4.TheworditinParagraph5refersto____.

A.CO2B.O3C.O2D.H2O5.Whatisthebesttitleforthispassage?EnvironmentProblemsB.PollutionontheEarthC.HopefortheFutureD.TheGreenhouseEffect

Task2while然而betakenaway被沖走，

被帶走“這是個被動語態(tài)的句子，其結(jié)構(gòu)be動詞+動詞的過去分詞

passthrough從....內(nèi)部穿過Takenotes:

Theearthis4.6billionyearsold.Wehumanshavelivedontheearthforonly35000years,butduringthisperiod,wehavechangedourplanetalotinmanyways.Somethingswe’vedoneareverygoodfortheearthwhilesomearebad._____________Allovertheworld,peoplehavecutdownmillionsoftrees.Whenitrainsorwhenthewindblows,theearthistakenaway.Forestshave

becomedeserts,somany

kindsofanimalsandplantsaredisappearing._________________Inbigcities,carsandbuseshavepollutedtheair.Nowmanypeopleincitieshavehealthproblems.________________Factorieshavealsopollutedthelandandthewater.Asaresult,manyriversandlakesarenowdead.______________Aroundtheearth,there’saspecialkindofoxygencalled“ozone”(O3).Itisimportanttotheearth.Butnowairpollutionisdestroyingitandmakingaverybigholeintheozonelayer.Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.Thisisverydangerousbecausethiskindofradiationcancausecancer._________________Conbondioxide(CO2)intheairhasincreasedalot.Itmainlycomesfromburningoil,coalandwood.Thishasformedablanketaroundtheearth.Theheatfromthesuncan’tescapesothetemperatureisrising.Thisiscalled“thegreenhouseeffect”.Itcausestheleveloftheoceanstoriseandtheclimateoftheearthtochange.Alltheseproblemsareveryserious,sowemustdosomethingnow.FewerTrees

TrafficPollutionFactoryPollution

TheOzoneLayerMoreCarbonDioxideTranslatethepassageingroups:ProblemEffectontheenvironmentfewertreesforestsbecomedeserts,animalsandplantsdisappeartrafficpollution

greenhouseeffect,levelofoceansrising,climatechangecarsandbusespolluteair,healthproblemspollutelandandwater,riversandlakesdeadharmfulradiationreachestheearth,causecancerfactorypollution

ozonehole

moreCO21cCompletethenotesaccordingto1a.3.Combinethekeypointsin1