unit+2+topic+2+section+c

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1、Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionC(1)________ofusknowshowtostopthebadbehavior.(2)Iknockedonthedoorbut___________answered.(3)Someofthesebooksarebetterthan__________.(4)Shewasdrivingthecarwithonehandandwipingthewindowwiththe_______.(5)Theyarebeau

2、tifulbutIamlookingfor___________useful.(6)Isthere___________youcandotohelpher?(7)There’re5000peoplelivinghereandalmost_________hashis/herowncar.(8)He’sclevererthan____________Iknow.(9)I’velooked__________butIcan’tfindit.Fillintheblanksusingsomething,anything,others,nobody,eve

3、ryone,anybody,everywhere,none,other.ReviewNonenobodyothersothersomethinganythingeveryoneanybodyeverywhereWhatcanwedotoprotectourenvironment?GiveaspeechInourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?cities,pollute,healthproblemsfactories,thela

4、ndandtheair,deadInourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?cutdown,millionsof,takeawaytheearth,becomedesert拿走Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?oxygenaspecialkindofoxygencalled“ozone”(O3)氧气ave

5、rybigholeintheozonelayer,toomuchharmfulradiationfromthesun臭氧层放射，放射物n.洞，坑v.出现，形成n.种类，形式Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?CO2carbondioxideincreasealot,forma“blanket”,theheatfromthesuncan’tescape二氧化碳毛毯，毯子渗出；逃跑；逃脱causethelevelofthese

6、atorisecalled“thegreenhouseeffect”or“globalwarming”v.上升；起床；升起温室效应fewertreesfactorypollutiontrafficpollutiontheozonelayermorecarbondioxideCanyoumatchthem?1aReadandunderstand.Lookatthefollowingpicturesandpredictthemainideaofthepassage.ChoosesuitabletitlesforParagraphs2-6.Thenwr

7、iteitdowninfrontofeachparagraph.Theearthis4.6billionyearsold.Wehumanshavelivedontheearthforonly35000years,butduringthisperiod,wehavechangedourplanetalotinmanyways.Somethingswe’vedoneareverygoodfortheearthwhilesomearebad._________Allovertheworld,peoplehavecutdownmillionsoftree

8、s.Whenitrainsorwhenthewindblows,theearthistakenaway.Forestshavebecom