英语人教版九年级全册Save the sharks !.ppt

Unit13Weretryingtosavetheearth!SectionA（3a-3b）,1.甚至是河底都满是垃圾。Evenwasfullofrubbish.,thebottomoftheriver,回顾课本98页：,2.这个镇上的每个人都应该参与清扫。Everyoneinthistownshouldcleaningitup.,playapartin,回顾课本98页：,3.骑自行车有其它的优点。,Thereareotheradvantagesofbikeriding.,回顾课本98页：,4.我买外卖食品从来不拿木筷子和塑料叉子。InevertakewoodenchopsticksorplasticforkswhenIbuy,takeawayfood.,回顾课本98页：,鲨鱼,（鱼）鳍,残酷的；残忍的,有害的,对有害,在顶部或顶端,链子；链条,食物链,生态系统,工业；行业,法律；法规,科学的,Spellnewwords,Warmingup,Theearthisbadlypolluted.,Whatshouldwedotosavetheearth?,Letstakeaction！,Takebusesinsteadofdrivingcars.,Letstakeaction！,Turnoffthelightswhenyouleavearoom.,Letstakeaction！,recyclebooksandpaper,回收利用,=useagain,Throwrubbishinthebins垃圾桶,Letstakeaction！,Takeaclothbagtogoshoppinginsteadofplasticbags.,Letstakeaction！,Therearesomeanimalsareendangered.Weshoulddosomethingtoprotecttheanimalsandtheenvironment!,Savetheearth!Savetheanimals!,濒临灭绝的,1.Haveyoueverseenashark?（鲨鱼）,2.Whatdoyouknowaboutsharks?,sharkfinsoup,famous,expensive,popular,Cutoffsharksfin,Throwthesharkbackintotheocean.,阅读课本P993a,SavetheSharks!,CircleTorF.,1.Sharksfin（鱼鳍）soupisfamousandexpensiveallaroundtheworld.,2.Wehavetokillawholesharktogetabowlofsharksfinsoup.,T,F,T,F,Readthefirstparagraph,1.Peoplecutoffsharksfinsandthrowthesharksbackintotheocean.,2.Sharksareinthebottomofthefoodchainintheoceansecosystem.,n.生态系统,食物链,T,F,T,F,CircleTorF.,Readthesecondparagraph,1.WildAidandtheWWFareenvironmentalprotectiongroupsinChina.,2.Sharksfinsaregoodforhealth.,T,F,T,F,CircleTorF.,Readthethirdparagraph,southernChina,around70million,over90percent,WildAidandtheWWF,3a,Readthepassageaboutsharksandcompletethefactsheetbelow.,SavetheSharks!,Manyhaveheardofsharkfinsoup.ThisfamousandexpensivedishisespeciallypopularinsouthernChina.Butdoyourealizethatyourekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup?,第一段,听说,鱼翅汤,中国南方,一碗,Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.Thisisnotonlycruel,butalsoharmfultotheenvironment.Withoutafin,asharkcannolongerswimandslowlydies.Sharksareatthetopofthefoodchainintheoceansecosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Manybelievethatsharkscanneverbeendangeredbecausetheyarethestrongestintheirfoodchain.Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.,第二段,对.有害的,2.Thisisnotonlycruel,butalsoharmfultotheenvironment.这种方法不但残忍而且对环境有害。,beharmfulto对有害,eg.Playingcomputergames_电脑游戏玩太多对学生有害。,muchisharmfultostudents.,完成句子1.Theairpollution_ourhealth.空气污染对我们的健康有害。2.Smoking吸烟有害健康。,isharmfulto,isharmfultothehealth.,Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.Thisisnotonlycruel,butalsoharmfultotheenvironment.Withoutafin,asharkcannolongerswimandslowlydies.Sharksareatthetopofthefoodchainintheoceansecosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Manybelievethatsharkscanneverbeendangeredbecausetheyarethestrongestintheirfoodchain.Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.,第二段,对.有害的,不再.,1.Asharkcannolongerswimandslowlydies.鲨鱼不能再游泳然后慢慢死掉。,nolonger意思是“不再”e.g.我不再是个学生了。,Languagepoints,Imnolongerastudent.,nolonger=notanylongere.g.Henolongerliveshere.=Hedoesntlivehereanylonger.他不在这儿居住了。,Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.Thisisnotonlycruel,butalsoharmfultotheenvironment.Withoutafin,asharkcannolongerswimandslowlydies.Sharksareatthetopofthefoodchainintheoceansecosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Manybelievethatsharkscanneverbeendangeredbecausetheyarethestrongestintheirfoodchain.Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.,第二段,对.有害的,不再.,在.顶端,食物链,3.Sharksareatthetopofthefoodchainintheoceansecosystem.鲨鱼位于海洋生物系统食物链的顶部。,atthetopof在最高地位;用最高最大的(速度,声音等),e.g.Heshoutedatthetopofhisvoiceinorderthathemightbeheard.他尽力大声叫喊,以便别人能听见。,完成句子Weveclimbed_thehill.我们爬到山顶了。,atthetopof,Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.Thisisnotonlycruel,butalsoharmfultotheenvironment.Withoutafin,asharkcannolongerswimandslowlydies.Sharksareatthetopofthefoodchainintheoceansecosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Manybelievethatsharkscanneverbeendangeredbecausetheyarethestrongestintheirfoodchain.Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.,第二段,对.有害的,不再.,在.顶端,食物链,4.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.如果它们的数目降至过低，会给所有海洋生物带来危险。,此句复数形式的numbers表达全海洋中鲨鱼的总量。当表示数值的高或低时，number要用high或low修饰。,e.g.Inthatcountry,thenumberofchildrengoingtoschoolisincitiesthanintownsandvillage.在那个国家，城市儿童入学人数比乡镇及农村要高。常与number搭配的动词有grow,fall等。e.g.Thenumberofcars_quickly.轿车的数量增长很快。,higher,grows,Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.Thisisnotonlycruel,butalsoharmfultotheenvironment.Withoutafin,asharkcannolongerswimandslowlydies.Sharksareatthetopofthefoodchainintheoceansecosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Manybelievethatsharkscanneverbeendangeredbecausetheyarethestrongestintheirfoodchain.Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.,第二段,对.有害的,不再.,在.顶端,食物链,事实上,一些种类,濒临灭绝的,Environmentalprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.Sofar,noscientificstudieshaveshownthatsharkfinsaregoodforhealth,sowhyeatthem?Helpsavethesharks!,第三段,例如,WildAid（美国野生救援协会）是保护野生动物及栖息地环境的一个非盈利性的机构，1999年注册成立，其宗旨是保护及救助世界范围内的野生动物；,WWF（世界自然基金会）英文全称为WorldWideFundforNature，成立于1961年，是享有国际盛誉，全球最大的独立性非政府环境保护组织之一。,全世界,5.Environmentprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.世界各地的环境保护组织，如野生救援协会和世界自然基金会，都在教育公众有关“猎翅”的行为。句中fin本为名词，指“鱼鳍”。此句中的finning由动词化的fin（割鲨鱼鳍以获取鱼翅）的-ing形式转化而成，指课文中所陈述的“猎翅”这一行为。,Environmentalprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.Sofar,noscientificstudieshaveshownthatsharkfinsaregoodforhealth,sowhyeatthem?Helpsavethesharks!,第三段,例如,鱼翅,到目前为止,全世界,3b,Readthepassageagainandfillintheblankswiththewordsinthebox.,Manypeopledonotrealizetheyarekillingawholeshark_theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,_iftheirnumbersdrop,theoceansecosystemwillbeindanger.,when,so,3.Manythinkthatsharksaretoostrongtobeendangered,_theyarewrong.4._therearenoscientificstudiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday_wedonotdosomethingtostopthesaleofsharkfins.,but,Although,if,adj.科学上的，科学的,Write5measures（措施）toprotecttheenvironment.,1.Turnofflightsandfanswhenweleavetheclassroom.,2.Isuggesteveryoneinthistownshouldhelptocleanuptheriverandthestreets.,3.Wecanreusewatertowaterflowersortrees,4.Ridebikesmoreofteninsteadofdrivingcars.,5.Thegovernmentsshouldclosedownsomefactorieswhichgiveoffblacksmoke.,Writing,Writealettertothecitymayorabouttheproblemsandyoursuggestions.,Inyourletter,describetheenvironmentalproblemsinyourtown/city.1.Whataretheproblems?2.Wherearethey?3.Whatorwhoiscausingtheseproblems?,Homework,Then,givesuggestionsorpossiblewaystosolvetheproblems.IthinkthatWeshould/couldIsuggest,写作指导,本次写作内容是一封书信，信中首先要介绍你所在城市存在有哪些环境问题，是谁造成的这些问题，然后提出解决这些环境问题的方法和措施，可以结合3a中列举的问题和前面学过的解决办法来完成这封信。,DearSir/Madam,Environmentalproblemsarebecomingmoreandmoreseriousallovertheworld.Withthedevelopmentofthesociety,therearetoomanycarsonthestreetsinourcity.Carshavemadetheairunhealthyforpeopletobreathe.Blacksmokeandpoisonousgasaregivenoffbyfactories.Factoriesalsoputwasteintotheriver.Andwhereverwego,wecanfindrubbish.,Nowmoreandmorepeoplehaverealizedtheseproblems.Ithinkthatgovernmentsshouldclosedownthefactoriesanddeveloplawstostoppeoplefromdrivingcarseveryday.Isuggesteveryoneinthistownshouldhelptocleanuptheriverandthestreets.Weshouldcalloneveryoneinthetowntothrowrubbishinthebins.Ihopetheproblemwillbesolved