英语人教版九年级全册Unit 13 Section A (3a-3b).ppt

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1、Unit13We'retryingtosavetheearth!SectionA3a-3bAirpollutionWaterpollutionLandpollutionWastepollutionNoisepollutionNotonlyistheearthpolluted,butalsosomeanimalsareendangered.Shark鲨鱼1.Haveyoueverseenashark（鲨鱼）?2.Whatdoyouknowaboutsharks?Discusswithyourpartner:Thesharkfinsoup1800.0

2、0RMBeachbowlItcomes….Readthefirstparagraphandjudgethesentences1.Sharkfin（鱼鳍）soupisfamousandexpensiveallaroundtheworld.2.Ifwegetabowlofsharkfinsoup,Wewillkillawholeshark.×√Readthesecondparagraph1.Peoplecutoffsharks’finsandthrowthesharksbackintotheocean.2.Sharksareinthebottomof

3、thefoodchainintheocean’secosystem.√×n.生态系统食物链Readthesecondparagraphagainandanswerthefollowingquestions.1.Whatdopeopledowhentheycatchashark?2.Whatwillhappentoasharkifitdoesn’thaveafin?Withoutafin,asharknolongerswimandslowlydies.Theycutofftheirfinsandthrowthesharksbackintotheoc

4、ean.3.Ifsharks’numberdroptoolow,whatwillitbring？4.Howmanysharksarecaughtandtradedeveryyear?5.Howarethenumbersofsomekindsofsharks?ItwillbringdangertoalloceanlifeAround70million.Theyhavefallenbyover90percentinthelast20to30years.Thesharkisbeingkilled.Themaniscuttingthefinoff.Sha

5、rksareindanger…..“Helpme,saveme…please’’救救我吧Whatshouldwedo?YaoMing,theChinesebasketballstar,arecallingonustoprotectsharks.AswhathesaidintheAd，whenthebuyingstops,thekillingcantoo.Readthethirdparagraph1.WildAidandtheWWFareenvironmentalprotectiongroupsinChina.2.Sharkfinsaregoodf

6、orhealth.××Savetheearth!Savetheanimals!保护环境，人人有责Everyoneshouldplayapartinenvironmentalprotection.InsouthernChinaAround70millionBydevelopinglawstostopthesaleofsharkfinsWildAidandtheWWF3aReadthepassageaboutsharksandcompletethefactsheetbelow.1.Asharkcannolongerswimandslowlydies.

7、鲨鱼不能再游泳然后慢慢死掉。nolonger意思是“不再”e.g.I’mnolongerastudent.我不再是个学生了。有两个短语和nolonger同义，即not…anylonger和not…anymore，但他们侧重的方面不同。Languagepointsnolonger和not…anylonger侧重时间。e.g.Henolongerliveshere.=Hedoesn’tlivehereanylonger.他不在这儿居住了。(一个时间以前他住在这儿，过了这个时间，他就离开了。)not…anymore侧重程度和数量e.g.Youcandr

8、inknomore.=Youcan’tdrinkanymore.你不能再喝了。(喝酒的量到了一定程度，不能再继续下去了。)2.Thisi