Unit 3 Animals are our friends Lesson 17 示范公开课教学课件 (八下翼教版)

Unit3Lesson17SavethetigersThinkaboutit!•Wherecanyouusuallyseeatiger?•Doyouthinktigersneedourhelp?Whyorwhynot?Warm-upDoyouknowthesetigers?PresentationtheBengaltigertheSiberiantigertheSumatrantigertheMalayantigerPresentationtheIndochinesetigertheSouthChinatigercenturyfursymbolcouragebravechainWordsandexpressionsPresentationn.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balancereasondisappearkillcutdecreasePresentationn.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Readthelessonandanswerthequestions.1.Howmanytigerswerethereatthebeginningofthe20thcentury?

Around100000.2.Howmanytigersarethereinthewildtoday?

Thenumberhasdroppedtoafewthousand.3.Wheredotigerslive?

TheyliveintheforestsofAsia.Presentation4.Whatdotigerslooklike?

Theyusuallyhaveorangefuranddarkstripes.5.Whatdotigerssymbolize?Theyaresymbolsofstrengthandcourage.6.Whatisthereasontigersareimportanttotheenvironment?Becausetigershelpkeepthenumberofotherwildanimalsinbalance.7.Whydopeoplehuntandkilltigers?

Theyareformoney.PresentationReadtheLesson

andfindthemainideaofeachparagraph.SavetheTigers“SavetheTigers”

isavolunteergroupthathopestostopthetigersfromdisappearing.Tigersareimportanttotheenvironment.Tigersareindangerofgoingextinct.PresentationLanguagepoints1.Ithelpskeepthenumberofotherwildanimalsinbalance.

(1)thenumberof表示“……的数量”，后接可数名词的复数形式，作

主语时，谓语动词用单数。Thenumberofthestudentsinourschool___(be)about3500.anumberof为许多、大量，作主语时，谓语动词用复数。Anumberofstudents___(be)playingintheplayground.isareLanguagepoints(2)balance在句中用作名词，意为“平衡；均衡”。

常用短语：beoutofbalance

意为“不平衡”；keepinbalance意为“保

持平衡”。

balance还作动词，表示“（使）平衡；（使）均衡”。

Youmustlearntokeepyourbalanceinskating.

在滑冰时你必须要学会保持平衡。Languagepoints2.Forthisreason,tigersareimportanttotheenvironment.beimportanttosb./sth.意为“……对于……来说是重要的”。beimportantforsb.todosth.意为“

做某事对某人来说是重要的”。

Timeisimportanttome.时间对我来说很重要。

ItisimportantforyoutolearnEnglishwell.

对你来说学好英语很重要。Ⅰ.根据句意及汉语提示写出相应的单词和短语。1.Buttodaythatnumberhas____________(下降到)afewthousand.2.Thetigeris______________(在……的顶部)the__________(食物链).3.Ithelpskeepthenumberofotherwildanimals_____________(保持平衡).4.Somepeoplehuntand_______(杀死)tigersformoney.5.Peoplehave_____________(砍伐)alotoftrees___________(也).droppedtoatthetopofchainfoodinbalancekillcutdownaswellExerciseⅡ.将下列句子补充完整。1.“拯救老虎”是一个志愿者的组织。“Savethetigers”is______________volunteers.2.在20世纪初期，野生老虎的数量大约是十万。____________________the20thcentury,_____________tigersinthe

wild____around100,000.3.老虎是力量和勇气的象征。Tigersare___________strengthandcourage.agroupofAtthebeginningofthe