unit 13 we are trying to save the earth 第二课时

Period2Unit13We’retryingtosavetheearth.Theearthisbadlypolluted.Whatshouldwedotosavetheearth?Let’stakeaction(采取行动)Turnoffthelightswhenyouleavearoom.Recyclebooksandpaper.Takebusesinsteadofdrivingcars.turnofftheshowerswhileyouarewashingyourhairuselesspapertowelsornapkins4aFillintheblankswiththecorrectformsoftheverbsinbrackets.Joe:_____youever______(take)partinanenvironmentalproject?Eric:Yes,Ihave.I______(help)withaClean-UpDaylastyear.Itwas__________(consider)thebiggestclean-upprojectthiscity____ever____(have).Joe:Howmanypeople____(take)part?Eric:I_____(think)morethan1,000people______(come)tohelpout.Joe:That’sfantastic!Iguesseveryoneinthiscityis______(try)toimprovetheenvironment.Eric:Yes,wecan’taffordto____(wait)anylongertotakeaction!Havetakenhelpedconsideredhadhadtookthinkcametryingwait4bFillintheblankswiththeappropriatemodalverbsfromthebox.People__________thinkthatbigthings______bedonetosavetheearth.Manyforgetthatsavingtheearthbeginswithsmallthings.Forexample,you____saveelectricitybyturningoffthelightswhenyouleavearoom.You______alsousereusablebagsinsteadofplasticbags.Ithinkit’sagreatideathatyounow______payforplasticbagsinsomestores.Andinsteadofdrivingtoschoolorwork,you__________rideyourbikeorwalk.Ifit’sfar,you__________takethebus.Allthesesmallthings______addupandbecomebigthingsthat_________improvetheenvironment.Let’stakeactionnow!may/mightmustcancanwouldcouldhavetoshouldmustmay/mightcouldhavetocan/shouldcan/couldcouldwould/canTherearesomeanimalsareendangered.Weshoulddosomethingtoprotecttheanimalsandtheenvironment!Thezoosprovidehomesformanyendangeredanimals.1.Haveyoueverseenashark（鲨鱼）?2.Whatdoyouknowaboutsharks?finsSharksareendangered,readthepassageandjudgethesentences.Readthefirstparagraph1.Shark’sfinsoupisfamousandexpensiveallaroundtheworld.2.Wehavetokillawholesharktogetabowlofshark’sfinsoup.×√Readthesecondparagraph1.Peoplecutoffsharks’finsandthrowthesharksbackintotheocean.2.Sharksareinthebottomofthefoodchainintheocean’secosystem.√×Readthethirdparagraph1.WildAidandtheWWFareenvironmentalprotectiongroupsinChina.2.Shark’sfinsaregoodforhealth.××Manyhaveheardofshark’sfinsoup.ThisfamousandexpensivedishisespeciallypopularinsouthernChina.Butdoyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowlofshark’sfinsoup?Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.Withoutafin,asharkcannolongerswimandslowlydies.Thismethodisnotonlycruel,butalsoharmfultotheenvironment.Sharksareatthetopofthefoodchainintheocean’secosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Manybelievethatsharkscanneverbeendangeredbecausetheyarethestrongestintheirfoodchain.Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.Environmentalprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofshark’sfins.Sofar,noscientificstudieshaveshownthatshark’sfinsaregoodforhealth,sowhyeatthem?Helpsavethesharks!WheresharkfinsoupispopularNumberofsharkscaughtandtradedeveryyearHowmuchthenumbersofsomekindsofsharkshavefalleninthelast20to30yearsTwoenvironmentalgroupswhichareagainst“finning”southernChina70millionover90percentWildAidandtheWWF3aReadthepassageaboutsharksandcompletethefactsheetbelow.soalthoughifbutwhen1.Manypeopledonotrealizetheyarekillingawholeshark___________theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,_______theirnumbersdrop,theocean’secosystemwillbeindanger.3.Manythinkthatsharksaretoostrongtobeendangered,____________theyarewrong.4.__________therearenoscientificstudiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday__________wedonotdosomethingtostopthesaleofsharkfins.whenso3bReadthepassageagainandfillintheblankswiththewordsinthebox.butAlthoughifSavethesharks1.howtoprotectsharks2.whytobekilled3.theresultofbeingkilled4.howtobekilledPuttheminorderaccordingtothepassage.Savethesharks1.whytobekilled2.howtobekilled3.theresultofbeingkilled4.howtoprotectsharksPuttheminorderaccordingtothepassage.famous,expensive,populardishcatch,cutoff,throw…backinto,withoutafin,asharkcannolonger….Sharksareatthetopofthefoodchainintheocean’secosystem.Iftheirnumbersdroptooslow,itwillbringdangerto…..….arecaughtandtraded……havefallenby…..groupsaroundtheworldsuchas….areteaching..…asked….todevelop….tostop…noscientificstudieshaveshownthat….Retellthepassageaccordingtothewordsbelow.sharkfinsoupinsouthernChinaeachtimecutoffnolongernotonly…butalso…atthetopdropbeendangeredthestrongestaround70millionfallenbyover90percentWildAidandtheWWFdeveloplawsscientificstudies