Unit13SectionA3a課件人教版九年級(jí)英語全冊(cè)

PROTECTINGTHEMARINEENVIRONMENTSavetheSharks!UNIT13TeachingobjectivesPROTECTINGTHEMARINEENVIRONMENTPROTECTINGTHEMARINEENVIRONMENTPROTECTINGTHEMARINEENVIRONMENT02Tolearnthereasonthatthesharksareendangeredandhowtosavethesharks.01Tomasterimportantwordsandphrases.PROTECTINGTHEMARINEENVIRONMENTPROTECTINGTHEMARINEENVIRONMENTPROTECTINGTHEMARINEENVIRONMENTDoyouknowanythingaboutsharks？NewwordsandphrasesfinsharkthefoodchainatthetopofecosystemNewwordsandphrasescruellaw

industrybeharmfultoscientificAnswerthequestionWhathappenstothesharksaccordingtopicturesReadpassageandfindoutthemainideaofthearticle.Tellingpeopletosavesharks.ReadpassageandfindoutthemainideaofeachparagraphTakeactiontoprotectthesharks.Sharksareendangered.Talkaboutsharfinsoup.Readpara1andjudgethesentences.WhenyoudrinkabowlofSharkfinsoup,ithasnoeffectonsharks.SharkfinsoupisapopulardelicacyinsouthernChina.Readpara2andfindoutthetopicsentence.Ifthenumberofsharksdecreases,itwillnotaffectotheroceanlife.Cuttingoffsharkfinsandthrowingthemintotheseaisnotonlycruelbutalsoharmfultotheocean.Becausesharksarethestrongestinthefoodchain,theywillnotbeendangered.Trytobuildamindmap!PROTECTINGTHEMARINEENVIRONMENT5minsFillintheblanksaccordingtopara2.Whenpeoplecatchsharks,they

theirfinsandthrowthesharksbackintotheocean.Thisisnotonlycruel,butalsoharmful

theenvironment.Withoutafin,ashark

nolongerswimandslowlydies.Sharksareatthetopofthefoodchainintheocean'secosystem.Iftheirnumbersdroptoolow,it

dangertoalloceanlife.Manybelievethatsharkscanneverbeendangeredbecausetheyare

intheirfoodchain.Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.The

ofsomekindsofsharkshavefallenbyover90percent

thelast20to30years.cutofftocanwillbringthestrongestnumbersinReadpara3andanswertwoquestions.1.Whatarethetwoenvironmentprotectiongroups2.Whataretheydoing3.ArethesharkfinsgoodforhealthFillintheblanksaccordingtothearticle.Somepeopleliketoeatsharkfinsoup,especiallyin

China.Butgetttheshark'sfinisvery

.Whenpeoplecatchsharks,they

theirfinand

thesharks

theocean.Theshark

diesbecauseitcan't

withoutthefin.Anditisalso

theenvironment.Sharksareathe

ofthefoodchain.If

the

of

sharksdropstoo

low,itwillbreakthebalance

ofnature.Pleasesaynoto

thesharkfinsoup,and

tosavethesharks!southerncruelcutoffthrowslowlyintoswimharmfultotopnumbereattakeactionsSummaryWordsandexpressions:sharkfincruelecosystemchainindustrylawscientificharmfulbeharmfultoatthetopofthefoodchainSentences:1)“Butdoyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup”2)“Thisisnotonlycruel,butalsoharmfultotheenvironment.”3)“Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.”PROTECTINGTHEMARINEENVIRONMENTPROTECTINGTHEMARINEENVIRONMENTPROTECTINGTHEMARINEENVIRONMENTHomeworkPROTECTINGTHEMARINEENVIRONMENTPROTECTINGTHEMARINEENVIRONMENTPROTECTINGTHEMARINEENVIR