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1Unit2II.BasicListeningPractice1.ScriptM:Nowwehavesatelliteandhigh-poweredmicroscopes,it’seasytothinkweknoweverythingabouttheworld;butwestilldon’tunderstandEINino.W:Right.EventhescientistsareuncertainabouttheexactcauseofthewarmPacificcurrentthatbringsstormsordrought—themysteriousEINino.Q:Whichofthefollowingistrueaccordingtotheconversation?B)EvenscientistscannotunderstandEINino.男：现在我们有卫星和高性能的显微镜，我们知道世界上的一切是很容易的；但我们仍不了解尼诺现象。W：右。甚至科学家也不知道确切的原因温暖的太平洋洋流带来的风暴或干旱的神秘的尼诺。问：根据对话，下列哪项是正确的？B）连科学家们无法理解尼诺。2.ScriptM:Everyoneistalkingaboutenvironmentalproblem:acidrain,greenhouseeffect,holesintheozonelayer.Weshouldthinkpositively.Whatcanwedotoimprovethings?W:Iagree.Wecoulddoalotmoretoharnessthesun’senergyforheatingandlightinginourhomes.MillionsofsolarroofsarenowemerginginJapan,theU.S.,Italy,andGermany.Q:Howdothemanandthewomanviewtheenvironment?D)Boththemanandwomanthinkpositivelyaboutit.M：每个人都在谈论环境问题：酸雨，温室效应，臭氧层的洞。我们应该积极地思考。我们能做什么来提高呢？W：我同意。我们可以做更多的事来利用太阳的能量加热和在我们的家庭照明。太阳能屋顶计现在出现在日本，美国，意大利，德国。问：如何看待环境？d）男女积极思考它。3.Script2W:WelivedinBeijingsomeyearsago.Itwasalwaysdifficulttokeepthehousecleanwiththewindfromthenorthblowingsandfromthedesert.M:That’swhytheChinesegovernmenthasbeenencouragingpeopletoplanttreesalongtheedgesoftheGobiDesert.Nowthosetreesactaswindbarriers.Q:WhathavetheChinesepeoplebeenencouragedtodo?A)Togrowtrees.W：我们几年前住在北京。它是从北方吹来的，沙子吹来保持屋子干净很困难。男：这就是为什么中国政府一直在鼓励人们植树造林，在戈壁滩沙漠的边缘。现在那些树作为风障。问：有什么中国人被鼓励吗？一）种树。4.ScriptM:ManyoldrefrigeratorsandcarsareenvironmentalhazardsbecausetheycontainCFCsthatdestroytheozonelayer.W:Yes,butgovernmentorganizationsarehelpingpeopletosafelydisposeofoldrefrigeratorsor,inthecaseofcars,toupgradetheirairconditioning.Q:Whataregovernmentorganizationshelpingpeopletodo?A)Totreatoldelectricalappliancessafely.M：许多旧冰箱和汽车的环境危害，因为它们含有氯氟烃破坏臭氧层。女：是的，现在政府机构帮助人们安全地处置旧冰箱或，以汽车为例，来升级自己的空调。问：政府组织帮助人们做什么？一）处理旧电器的安全。5.ScriptM:Hey.That’sanaerosolsprayyou’reusingonyourhair!Buildabomborsetfiretotheapartmenttokillusquicklyinsteadofmakingholesintheozone,sowedieofcancer.W:Coolit.Thisspraydoesn’tcontainCFCs.Andyou’dbetterreadalittlemore.Q:Whatdoesthemanmean?C)Thewomanshouldnotuseanaerosolspray.男：嘿。这是一个喷雾你对你的头发不好！等于建立一个炸弹，或充满整个公寓快速杀死我们，不利于臭氧洞，而且我们可能死于癌症。W：冷静。这种喷雾不含氯氟烃。你最好多读一点。问：这个男人是什么意思？3c）女人不应该使用喷雾。III.ListeningInTask1:Weshouldhaveproperrespectfornature!ScriptMartha:Doyouthinkmostpeopleinyourculturerespectnature?Ed:Ithinkso.Um…morenowthanbefore.Martha:Whatdoyouthinkisthemostseriousenvironmentproblemintheworldtoday?Ed:Today…Ithinkdamagetotheozonelayerisabigproblem,andanotherproblemispollutioninbigcitiesandthingslikethat.Martha:Howdoyoulearnaboutenvironmentalproblems?Ed:Um…throughschool.Alotofclubspromoteenvironmentalsafely,andsomeTVprograms,too.Theytalkaboutenvironmentalsafelyandstufflikethat.Martha:Doyouthinkstudentsshouldlearnmoreabouttheenvironmentatschool?Ed:Ithinkso.So,astheygrowolder,theycanbemoreawareofalltheproblemsthataregoingon,andpreventmoreproblemsfromoccurring.Martha:Ifyoucouldcreateanewlawtohelptheenvironment,whatwoulditbe?Ed:Anewlawfortheenvironment?Um…I’dprobablysaythatwhenpeoplethrowawaytheircigarettebutts,theyhavetothrowthemintothegarbagebin,notjustthrowthemeverywherebecauseit’sjustlitteringandIhatethat.Sotheyshouldbefinediftheythrowthemonthefloorontheground.Martha:That’sagoodidea.Whatdoyoupersonallydotohelpprotecttheenvironment?Ed:I’msoagainstlittering.Ineverlitter.IfIseesomebodylitter,Igetreallyangry.SoIalwaysthrowmytrashintothegarbagebin.玛莎：你认为在你的文化中人们尊重大自然？艾德：我是这么认为的。嗯……现在比以前更多。玛莎：你认为什么是当今世界最严重的环境问题？艾德：今天……我想破坏臭氧层，是一个大问题，一个问题是在大城市的污染等等。玛莎：你怎么了解环境问题？艾德：嗯……通过学校。很多俱乐部促进环境安全，和一些电视节目，太。他们谈论环境安全的东西。4玛莎：你认为学生应该在学校学会更多关于环境的问题吗？艾德：我是这么认为的。所以，当他们长大后，他们可以更清楚地了解所有的问题，要，并防止更多的问题。玛莎：如果你能创造新的法律帮助环境，它会是什么？艾德：对环境的新法律？嗯……我可能会说，当人们扔掉的烟头，他们不得不把它们扔到垃圾桶，不随便乱扔垃圾，我憎恨这种行为。所以他们应该罚款如果他们扔在地板上。玛莎：那是个好主意。那么个人的事怎么来帮助保护环境呢？艾德：我非常反对乱扔垃圾。我从不乱扔垃圾。如果我看到有人乱扔垃圾，我真的生气了。所以我总是把我的垃圾扔进垃圾箱。Key:(1)NatureenvironmentalproblempollutionpromoteawareoffromoccurringlawthrowawayfinedtrashTask2:RiverpollutionScriptIfyouseedeadfishfloatingontheriverornoticethatthewaterisdiscoloredandsmelly,youknowtheriverhasbeenpolluted,andtherearefourmainpossiblecausesforit.First,fertilize.Iflargeamountoffertilizeorfarmwastedrainintoariver,theconcentrationsofnitrateandphosphateinthewaterincreaseconsiderably.Algaeusethesesubstancestogrowrapidly,turningthewatergreen.Thismassivegrowthofalgaeleadstopollution.Whenthealgaedie,theyarebrokendownbytheactionofthebacteria,whichquicklymultiply,usingupalltheoxygeninthewaterandthereforecausingthedeathoffish.Second,industrialwaste.Factoriessometimesdischargechemicalwasteintorivers.Examplesofsuchpollutantsincludecyanide,lead,copper,andmercury.Thesesubstancesmayentertheriverinsuchhighconcentrationsthatfishandotheranimalsarekilledimmediately.Sometimesthepollutionsenterthefoodchainandaccumulateuntiltheyreachtoxiclevels,eventuallykillingfishandotheranimals.Third,oilpollution.Ifoilentersaslow-movingriver,itformsarainbow-coloredfilmovertheentiresurface,preventingoxygenfromenteringthewater.Fourth,warmwater.Industryoftenuseswaterforcoolingpro