Unit13 we are trying to save the earth

SectionA3a,Unit13wearetryingtosavetheearth,Savetheearth!Savetheanimals!,Weliveinthesamesmallworld.Therearesomeanimalsendangered.Weshoulddosomethingtoprotectthemandtheenvironment!Toloveanimalsistoloveourselves.,sharkfincruelharmfulbeharmfultoatthetopofchainthefoodchainecosystemindustrylawscientific,n.鲨鱼n.（鱼）鳍adj.残酷的；残忍的adj.有害的对.有害的在.顶部或顶端n.链子；链条食物链n.生态系统n.工业；行业n.法律；法规adj.科学上的；科学的,Objectives,TolearnsomekeywordsandusefulexpressionsTolearnsomethingaboutendangeredanimals-sharks.,Readthetitle,thefirstandlastsentencesineachparagraphsandmatchthemainideas.,Para.1Para.2Para.3,Environmentalprotectiongroupsareagainst“finning”.Somebasicfactsaboutsharkfinsoup.基本事实Someimportantfactsaboutkillingsharks.,Sharksareendangered,readthepassageandjudgethesentences.,Readthefirstparagraph,1.Sharksfin（鱼鳍）soupisfamousandexpensiveallaroundtheworld.,2.Wehavetokillawholesharktogetabowlofsharksfinsoup.,Readthesecondparagraph,1.Peoplecutoffsharksfinsandthrowthesharksbackintotheocean.,2.Sharksareinthebottomofthefoodchainintheoceansecosystem.,n.生态系统,食物链,Readthethirdparagraph,1.WildAidandtheWWFareenvironmentalprotectiongroupsinChina.,2.Sharksfinsaregoodforhealth.,Whatcanwedotosavethesharks?,Weshouldstopeatingthesharkfinsoup!,whenthebuyingstops,thekillingcantoo.,Listenandrepeat.,Letsdothistoreviewthetext!,Somepeopleliketoeatsharksfinsoup,especiallyin_China.Butgettingthesharksfinisvery_.Whenpeoplecatchsharks,they_theirfinsandthrowthesharksintotheocean.Thesharkslowlydiesbecauseitcant_withoutthefin.Anditisalso_toenvironment.Sharksareatthe_ofthefoodchain.Ifthenumberofsharksdropstoolow,itwillbreakthebalanceofnuture.Pleasesaynotoeatingthesharkfinsoup,andtakeactiontosavethesharks!,southerncruelcutoffswimharmfultop,southernChina,70million,over90percent,WildAidandtheWWF,3a,Readthepassageaboutsharksandcompletethefactsheetbelow.,1.Manypeopledonotrealizetheyarekillingawholeshark_theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,_theirnumbersdrop,theoceansecosystemwillbeindanger.,when,so,Readthepassageagainandfillintheblankswiththewordsinthebox.,3b,3.Manythinkthatsharksaretoostrongtobeendangered,_theyarewrong.4._therearenoscientificstudiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday_wedonotdosomethingtostopthesaleofsharkfins.,but,Although,if,adj.科学上的，科学的,LanguagePoints,2.whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.cutoff有以下几种意思：（1）切断（水、电）；中断；关掉例句：Theirwatersupplywascutoff.（2）切下来；剪下来例句：Theycutofftheheadsoftheircaptives.他们把俘虏的头砍了下来。,LanguagePoints,3.Asharkcannolongerswimandslowlydies.鲨鱼不能再游泳然后慢慢死掉。,nolonger意思是“不再”例句：Imnolongerastudent.我不再是个学生了。,有两个短语和nolonger同义，即notanylonger和notanymore，但他们侧重的方面不同。,nolonger和notanylonger侧重时间。e.g.Henolongerliveshere.=Hedoesntlivehereanylonger.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。)notanymore侧重程度和数量e.g.Youcandrinknomore.=Youcantdrinkanymore.你不能再喝了。(喝酒的量到了一定程度，不能再继续下去了。),LanguagePoints,4.Thismethodisnotonlycruel,butalsoharmfultotheenvironment.这种方法不但残忍而且对环境有害。,（1）notonlybutalso用于连接两个表示并列关系的成分，着重强调后者，其意为“不仅而且”;其中的also有时可以省略。,LanguagePoints,若连接两个成分作主语，其谓语通常与靠近的主语保持一致。例句：Notonlyyoubutalsohehastoleave.不只是你，他也得离开。,notonly放在句首，后接句子时要用倒装结构。例句：Notonlyhadthepoormanbeenfined,butalsohehadbeensenttoprison.这个可怜的人不仅被罚款，而且还被送进了监狱。,（2）beharmfulto对有害例句：Smokingisharmfultothehealth.吸烟有害健康。Playingcomputergamesmuchisharmfultostudents.电脑游戏玩太多对学生有害。,LanguagePoints,II.单项选择。1.Rememberto_thelightswhenyouleavetheroom.OK.Iwill.A.turnonB.turndownC.turnupD.turnoff2.Look!_boysareplayingontheplayground.Yes._themisabout200.A.Thenumberof;AnumberofB.Thenumberof;ThenumberofC.Anumberof;ThenumberofD.Anumberof;Anumberof3.到目前为止，我已经交了二