Unit2Theenvironment【美文阅读】人类的贪婪是环境恶化的主要原因。然而，除此之外还有其他因素吗？Isourenvironmentbeingdestroyedbygreed?Theenvironmenthasbeensufferingfromallformsofdamage；especiallyinrecentyearsglobalwarmingseemstobethemainproblem.Manytimes，environmentalworsening，intheformofrunningoutofnaturalresources，andair，waterandlandpollution，iscausedbytheirresponsiblebehaviorofhumans.Nations，liketheUnitedStates，setthemselvesabovetheruinanddamageoftheenvironment.However，itwillbeunfairtostatethatenvironmentalworseningisbroughtaboutonlybygreed.Otherfactors，suchastheinabilityofsomedevelopingcountriestofindotherchoicesofsurvival，alsoplayapartincontributingtoenvironmentalproblem.Thestateoftheenvironmenthasbeentheconcernofscientistsinrecentyears.Inthecaseofglobalwarming，greed，inthesenseofeconomicbenefitsofacountry，actuallycontributestotheruinoftheenvironment.ThisisseeninthecaseoftheUnitedStates'refusaltocarryoutitsagreementtotheKyotoProtocol(京都议定书)，wherecountriescometogetherandhelpdealwiththeincreasingemissionofgreenhousegases.IftheUSagreedtoit，itwouldmeanthatithastocutbackonitsGrossDomesticProduct(GDP)growth.Anotherreasonforenvironmentalworseningisthatsomedevelopingcountrieshavefewornootherchoicestomakingmoneyfortheirsurvival.Forexample，slashandburn(刀耕火种)isthecheapestwayforpoorfarmerseventhoughitcreatesaseriousenvironmentalproblem.Shouldtheynotpracticeslashandburn，theymaynotbeabletoclearthelandintimeforagriculturalactivitiestosupportthemselvesandtheirfamilymembers.Forthem，environmentconcernsaresecondaryascomparedtotheirsurvival.Therefore，tosavetheenvironment，everyone，beityoungorold，richorpoor，shouldplayapartinprotectingtheearth，asacollectiveeffortdefinitelymakesabigdifference.【诱思导学】1．Whataretheformsofenvironmentalworseningaccordingtothepassage?________________________________________________________________________2．WhydoesAmericarefusetheKyotoProtocol?________________________________________________________________________3．Whatcausestheworseningoftheenvironment?________________________________________________________________________【答案】1.①Globalwarming②Runningoutofnaturalresources③Air，waterandlandpollution2．BecauseitwilldamageAmerica'seconomicdevelopment.or：BecauseitmeanstheUSwillhavetocutbackonitsGDPgrowth.3．Humanbeing'sgreedandtheirinabilitytofindotherchoicesofsurvival.PeriodⅠPreviewing(教师用书独具)●教学目标本课时主要是通过学生对学案所给出的内容的学习，了解本课文中所出现的词汇，初步了解课文以及相关的背景知识，对下一堂课中课文的全面理解起到一个铺垫作用。●教学地位本文是一篇辩论，需要学生在预习过程中初步了解辩论的基本方式、流程和目的，并了解当前世界经济的发展对环境造成的影响。(教师用书独具)●新课导入建议建议教师以课本第21页的图片导入新课，要求学生分组讨论四幅图片，并提出问题：Whatcanyouseefromthepictures？Trytodescribethemandtellwhichoftheseproblemsarecausedbynatureandwhicharecausedbyman.Ingroupsyoucanthinkofothernaturaldisastersandpeople'sactivitiesthatdamagetheenvironment.●教学流程设计⇒⇒⇓⇐师生共同讨论并统一答案。⇐⇓⇒⇒⇓⇐⇐⇓(见学生用书第27页)Ⅰ.篇章结构阅读P22－23课文，然后完成下面表格DebatersLinShuiqing(representsthe1.______)QianLiwei(representstheeconomy)PointsEconomicdevelopmentisbadfortheenvironment.Economicdevelopmentdoesnothavetobebadfortheenvironment.Reasons•Largeareasoftheworldaredamagedbychemical2...
