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1、Unit3Lesson17AnimalsAreOurFriendsSavetheTigerscenturyfursymbolcouragebravechainn.世纪n.（兽类的）毛n.标志，象征n.勇气，胆量adj.勇敢的，无畏的n.链子；链条WordsandExpressionsbalancereasondisappearkillcutdecreasen.平衡，平稳n.原因，动机，理由v.消失，失踪v.杀死v.砍，切，剪，割v.使……变小；减少WordsandExpressionsToknowtheurgencyofprotectingtigersTouseth
2、efollowingwordsandexpressionscorrectly:century,courage,brave,reason,kill,cut,atthebeginningof…,dropto,foodchain,inbalance,indanger,cutdown,aswellThinkaboutit!1.Wherecanyouusuallyseeatiger?2.Doyouthinktigersneedourhelp?Whyorwhynot?3.Whatcanwedotoprotectwildanimals?inacage?orinthewild?Le
3、t’sseethevideoofareport.Therearecurrentlysixtypesoftigers:theBengaltiger,theSiberiantiger,theSumatrantiger,theMalayantiger,theIndochinesetigerandtheSouthChinatiger.theBengaltiger(孟加拉虎)theSiberiantiger（东北虎）theSumatrantiger（苏门答腊虎）theMalayantiger（马来亚虎）theIndochinesetiger（印度支那虎）theSouthChi
4、natiger（华南虎）Readthelessonandanswerthequestions.Task11.Howmanytigerswerethereatthebeginningofthe20thcentury?2.Howmanytigersarethereinthewildtoday?3.Wheredotigerslive?4.Whatdotigerslooklike?5.Whatdotigerssymbolize?6.Howaretigersdescribedinmanystories?7.Whatdoes“atthetopofthefoodchain”mea
5、n?8.Whatisthereasontigersareimportanttotheenvironment?9.Whydopeoplehuntandkilltigers?10.Asidefromtheirbeinghuntedandkilled,whatisanotherreasontigersaredisappearing?Referenceanswer.1.Howmanytigerswerethereatthebeginningofthe20thcentury?Around100000.2.Howmanytigersarethereinthewildtoday?
6、Thenumberhasdroppedtoafewthousand.3.Wheredotigerslive?TheyliveintheforestsofAsia.4.Whatdotigerslooklike?Theyusuallyhaveorangefuranddarkstripes.5.Whatdotigerssymbolize?Theyaresymbolsofstrengthandcourage.6.Howaretigersdescribedinmanystories?Theyarebrave.7.Whatdoes“atthetopofthefoodchain”
7、mean?Tigersarethekingofallthewildanimals.8.Whatisthereasontigersareimportanttotheenvironment?Becausetigershelpkeepthenumberofotherwildanimalsinbalance.9.Whydopeoplehuntandkilltigers?Theyareformoney.10.Asidefromtheirbeinghuntedandkilled,whatisanotherreasontigersaredisappearing?Peopleh
