《Were trying to save the earth!》PPT课件9

SectionAPeriod23a-4cUnit13We’retryingtosavetheearth!Doyoulikeanimals?Doyouknowtheshark?Doyouknowwhythepeoplekilledthesharks?Doyouhearaboutthesharkfinsoup?Nowmanysharksarekilledforthiskindofsoup.Sharksarefewerandfewer.Whatshouldwedo?Let’scometo3a.LeadinThegeneralideaofthearticleisabout____.A.airpollutionB.thesharksC.waterpollutionReadforthegeneralideaof3a.B3a.Readthepassageaboutsharksandcompletethefactsheetbelow.InSouthernChina.Around70million.Over90percent.WildAidandtheWWF.WheresharkfinsoupispopularNumberofsharkscaughtandtradedeveryyearHowmuchthenumbersofsomekindsofsharkshavefalleninthelast20to30yearsTwoenvironmentalgroupsagainst“finning”Twoenvironmentalgroupsagainst“finning”3b.Readthepassageagainandfillintheblankswiththewordsinthebox.1.Manypeopledonotrealizetheyarekillingawholeshark_________theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,_______iftheirnumbersdrop,theocean’secosystemwillbeindanger.3.Manythinkthatsharksaretoostrongtobeendangered,_________theyarewrong.4._________therearenoscientificstudiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday__________wedonotdosomethingtostopthesaleofsharkfins.so,although,if,but,whenwhensobutAlthoughifSavethSharksWhyEnjoysharkfinsoup=killawholesharkHowBecutofffins;dieslowly;thetopofthefoodchain;bringdangertoallWhatasktodeveloplawsRetellthepassageaccordingtothekeywordsintheformbelow.Many____________ofsharkfinsoup.Thisfamousandexpensivedishisespeciallypopularin________China.Butdoyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup?Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.Thisisnotonlycruel,butalsoharmfultotheenvironment.________afin,asharkcannolongerswimandslowly_______.Sharksareatthetopofthefoodchainintheocean’secosystem.Iftheir______droptoolow,itwillbring________toalloceanlife.Manybelievethatsharkscanneverbe________becausetheyarethestrongestintheirfoodchain.Butinfact,around70millionsharks_________andtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharks__________byover90percentinthelast20to30years.Environmentalprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.Sofar,noscientificstudies_________thatsharkfinsaregoodforhealth,sowhyeatthem?Helpsavethesharks!SavetheSharks!Completethepassagewithoutlookingatyourbook.答案haveheard,southern,Without,dies,numbers,danger,endangered,arecaught,havefallen,haveshownGrammarFocusWe’retryingtosavetheearth.PresentprogressiveTheriverusedtobesoclean.usedtoTheairisbadlypolluted.PassivevoiceNoscientificstudieshaveshownthatsharkfinsaregoodforhealth.PresentperfectWeshouldhelpsavethesharks.Modalverbs4a.Fillintheblankswiththecorrectformsoftheverbsinbrackets.Joe:________youever________(take)partinanenvironmentalproject?Ken:Yes,Ihave.I__________(help)withaClean-UpDaylastyear.Itwas___________(consider)thebiggestclean-upprojectthiscity________ever________(have).Joe:Howmanypeople___________(take)part?Ken:I___________(think)morethan1,000people_________(come)tohelpout.Joe:That’sfantastic!Iguesseveryoneinthiscityis________(try)toimprovetheenvironment.Ken:Yes,wecan'taffordto__________(wait)anylongertotakeaction!Havetakenthinkhelpedconsideredhashadtookcametryingwait4b.Fillintheblankswiththeappropriatemodalverbsfromthebox.People__________thinkthatbigthings____________bedonetosavetheearth.Manyforgetthatsavingtheearthbeginswithsmallthings.Forexample,you_________saveelectricitybyturningoffthelightswhenyouleavearoom.You_________alsousereusablebagsinsteadofplasticbags.Ithinkit'sagreatideathatyounow_______payforplasticbagsinsomestores.Andinsteadofdrivingtoschoolorwork,you________rideyourbikeorwalk.Ifit’sfar,you_________takethebus.Allthesesmallthings_________addupandbecomebigthingsthat__________improvetheenvironment.Let'stakeactionnow!can,would,could,haveto,should,must,may/mightmay/mightmust/shouldcancan/couldhavetocouldcanshouldwouldHomework1.Readandwritethenewwordsandexpresses.2.Retell3a.