九年级英语U13教学课件.ppt

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1、Unit13We'retryingtosavetheearth!SectionA23a-3bTherearesomeanimalsthatareendangered.Weshoulddosomethingtoprotecttheanimalsandtheenvironment!Savetheearth!Savetheanimals!Nosalenokilling!WheresharkfinsoupispopularNumberofsharkscaughtandtradedeveryyearHowgovernmentscanhelpTwoenvironmentalgroupswhich

2、areagainst“finning”southernChina70milliondeveloplawstostopthesaleofsharkfinsWildAidandtheWWF3aReadthepassageaboutsharksandcompletethefactsheetbelow.Sharksareendangered,readthepassageandjudgethesentences.Readthefirstparagraph1.Shark’sfin（鱼鳍）soupisfamousandexpensiveallovertheworld.2.Wehavetokilla

3、wholesharktogetabowlofsharkfinsoup.×√Readthesecondparagraph1.Peoplecutoffsharks’finsandthrowthesharksbackintotheocean.2.Sharksareinthebottomofthefoodchainintheocean’secosystem.√×n.生态系统食物链Readthethirdparagraph1.WildAidandtheWWFareenvironmentalprotectiongroupsinChina.2.Shark’sfinsaregoodforhealth

4、.××1.Manyhaveheardofsharkfinsoup.许多人听说过鱼翅羹。hearofaboutsthsb“听说…”e.g.Haveyouheardofthestory?你听过这个故事吗？hearfromsb“收到某人的来信”=getreceivealetterfromsbe.g.Iheardfrommysisteryesterday.昨天我收到了我妹妹的来信。Languagepoints2.Thisisnotonlycruel,butalsoharmfultotheenvironment.这种做法不但残忍而且对环境有害。1)notonly…butalso…“不仅…

5、而且…”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。Shenotonlyplayswell,butalsowritesmusic.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(就近原则）。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。2)beharmfulto（

6、=doharmto)“对……有害”e.g.Playingcomputergamestoomuchisharmfultostudents.=Playingcomputergamestoomuchdoesharmtostudents.电脑游戏玩太多对学生有害。3.Asharkcannolongerswimandslowlydies.鲨鱼不能再游泳然后慢慢死掉。nolonger意思是“不再”e.g.I’mnolongerastudent.=I’mnotastudentanylonger.我不再是个学生了。nolongerot…anylonger和nomoreot…anymore同义

7、。e.g.Youcan’tdrinkanymore.你不能再喝了。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,thenumberofchildrengoingtoschoolishighe