英语人教版九年级全册Unit 13 SectionA 3a--3b.ppt

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1、SectionAUnit13We’retryingtosavetheearthPeriod23a-3cTheearthisbadlypolluted.Whatshouldwedotosavetheearth?WarmingupLet’stakeaction(采取行动)Turnoffthelightswhenyouleavearoom.Recyclebooksandpaper.Takebusesinsteadofdrivingcars.Therearesomeanimalsareendangered.Weshoulddosomethingtoprotectthean

2、imalsandtheenvironment!Savetheearth!Savetheanimals!Readthepassageaboutsharksandcompletethefactsheetbelow.3aManyhaveheardofshark’sfinsoup.ThisfamousandexpensivedishisespeciallypopularinsouthernChina.Butdoyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowlofshark’sfinsoup?Whenp

3、eoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.Withoutafin,asharkcannolongerswimandslowlydies.Thismethodisnotonlycruel,butalsoharmfultotheenvironment.Sharksareatthetopofthefoodchainintheocean’secosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Man

4、ybelievethatsharkscanneverbeendangeredbecausetheyarethestrongestintheirfoodchain.Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.Environmentalprotectiongroupsaroundtheworld,suchasWildAi

5、dandtheWWF,areteachingthepublicabout“finning”.Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofshark’sfins.Sofar,noscientificstudieshaveshownthatshark’sfinsaregoodforhealth,sowhyeatthem?Helpsavethesharks!Sharksareendangered,readthepassageandjudgethesentences.Readthefirstparagra

6、ph1.Shark’sfin（鱼鳍）soupisfamousandexpensiveallaroundtheworld.2.Wehavetokillawholesharktogetabowlofshark’sfinsoup.×√Readthesecondparagraph1.Peoplecutoffsharks’finsandthrowthesharksbackintotheocean.2.Sharksareinthebottomofthefoodchainintheocean’secosystem.√×n.生态系统食物链Readthethirdparagraph

7、1.WildAidandtheWWFareenvironmentalprotectiongroupsinChina.2.Shark’sfinsaregoodforhealth.××WheresharkfinsoupispopularNumberofsharkscaughtandtradedeveryyearHowmuchthenumbersofsomekindsofsharkshavefalleninthelast20to30yearsTwoenvironmentalgroupswhichareagainst“finning”southernChina70mill

8、ionov