英语人教版九年级全册unit13period2.ppt

Unit13,Unit13Weretryingtosavetheearth!,SectionA23a-3b,Revision,JasonandSusan,whatareyourideasforsolvingtheseproblems?,Role-play2d.,Well,tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.,Yeah,orrideabike.Thereareotheradvantagesofbikeriding.Itsgoodforhealthanditdoesntcostanything.,Greatideas!Whataboutwastepollution?,Mmm,Ithinksimplethingslikebringingabagtogoshoppingcanhelp.Istarteddoingthatayearago.,Me,too.Also,InevertakewoodenchopsticksorplasticforkswhenIbuytakeawayfood.Iusetheonesathome.,Andremembertothrowrubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryone.,Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!,TranslatethesesentencesintoEnglish.,1.甚至是河底都满是垃圾。2.这个镇上的每个人都应该参与清扫。,Eventhebottomoftheriverwasfullofrubbish.,Everyoneinthistownshouldplayapartincleaningitup.,3.骑自行车有其它的优点。4.我买外卖食品从来不拿木筷子和塑料叉子。,Thereareotheradvantagesofbikeriding.,InevertakewoodenchopsticksorplasticforkswhenIbuytakeawayfood.,Theearthisbadlypolluted.Whatshouldwedotosavetheearth?,Warmingup,Letstakeaction(采取行动),Turnoffthelightswhenyouleavearoom.,Recyclebooksandpaper.,Takebusesinsteadofdrivingcars.,Therearesomeanimalsareendangered.Weshoulddosomethingtoprotecttheanimalsandtheenvironment!,Savetheearth!Savetheanimals!,Thezoosprovidehomesformanyendangeredanimals.,1.Haveyoueverseenashark（鲨鱼）?2.Whatdoyouknowaboutsharks?,Discusswithyourpartner:,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.,southernChina,70million,over90percent,WildAidandtheWWF,3a,Readthepassageaboutsharksandcompletethefactsheetbelow.,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,Retellthepassageaccordingtothewordsbelow.,1.Asharkcannolongerswimandslowlydies.鲨鱼不能再游泳然后慢慢死掉。,nolonger意思是“不再”e.g.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。,Languagepoints,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。),2.Thismethodisnotonlycruel,butalsoharmfultotheenvironment.这种方法不但残忍而且对环境有害。,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。,e.g.Shenotonlyplayswell,butalsowritesmusic.她不但很会演奏，而且还会作曲。Notonlymenbutalsowomenwerechosen.不仅仅是男的，女的也有被选中的。,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。e.g.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。e.g.Notonlyhadthepoormanbeenfined,butalsohehadbeensenttoprison.这个可怜的人不仅被罚款，而且还被送进了监狱。,beharmfulto对有害e.g.Smokingisharmfultothehealth.吸烟有害健康。Playingcomputergamesmuchisharmfultostudents.电脑游戏玩太多对学生有害。,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.Ilookedatthetopofhishead,hishairshinyandpartedsmoothly.我看他的头顶,头发闪亮且平滑的分开。,Heshoutedatthetopofhisvoiceinorderthathemightbeheard.他尽力大声叫喊,以便别人能听见。,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,thenumberofchildrengoingtoschoolishigherincitiesthanintownsandvillage.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.Thenumberoffamiliesthatowncarshasbeengrowingquicklyrecently.近来拥有轿车的家庭数量增长很快。,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。1)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