英语人教版九年级全册Unit13课件.ppt

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1、Unit13We’retryingtosavetheearth.SectionA（3a-3b）Theearthisbadlypolluted.Whatshouldwedotosavetheearth?WarmingupLet’stakeaction(采取行动)Turnoffthelightswhenyouleavearoom.Recyclebooksandpaper.Takebusesinsteadofdrivingcars.Therearesomeanimalsareendangered.Weshoul

2、ddosomethingtoprotecttheanimalsandtheenvironment!Savetheearth!Savetheanimals!Thezoosprovidehomesformanyendangeredanimals.1.Haveyoueverseenashark（鲨鱼）?2.Whatdoyouknowaboutsharks?Discusswithyourpartner:Sharksareendangered,readthepassageandjudgethesentences.R

3、eadthefirstparagraph1.Shark’sfin（鱼鳍）soupisfamousandexpensiveallaroundtheworld.2.Wehavetokillawholesharktogetabowlofshark’sfinsoup.×√Readthesecondparagraph1.Peoplecutoffsharks’finsandthrowthesharksbackintotheocean.2.Sharksareinthebottomofthefoodchainintheo

4、cean’secosystem.√×n.生态系统食物链Readthethirdparagraph1.WildAidandtheWWFareenvironmentalprotectiongroupsinChina.2.Shark’sfinsaregoodforhealth.××southernChina70millionover90percentWildAidandtheWWF3aReadthepassageaboutsharksandcompletethefactsheetbelow.3bReadthep

5、assageagainandfillintheblankswiththewordsinthebox.Manypeopledonotrealizetheyarekillingawholeshark______theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,____iftheirnumbersdrop,theocean’secosystemwillbeindanger.whenso3.Manythinkthatsharksareto

6、ostrongtobeendangered,_____theyarewrong.4._________therearenoscientificstudiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday___wedonotdosomethingtostopthesaleofsharkfins.butAlthoughifadj.科学上的，科学的Retellthepassagea

7、ccordingtothewordsbelow.1.Asharkcannolongerswimandslowlydies.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’tli

8、vehereanylonger.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.Youcandrinknomore.=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.Thismethodisnotonlycruel,butalsoharmfultotheenvironment.这种方法不但残忍而且对环境有