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单元写作小专题&SectionB(3a～3b)【单元写作目标】能描述地球的环境问题、原因及解决问题的建议。1.能用“usedto，atpresent，however”等词来描述当今的环境变化；2.能用“Ithinkweshould…/Isuggestthat…/We'dbetter…/Wecould…/It'sagoodideato…”等句型来提出解决环境问题的建议。一、语言积累(一)Environmentalproblemsandreasons:根据句意及汉语提示完成下列句子。1.Theriverusedtobeclean，butnowthe________(底部)oftheriveris________(充满着)of________(垃圾).2.Peopleare________(乱扔)rubbishintheriverandfactoriesare________(倒入)wastewaterintotheriver.That'swhytheriverbecomesdirtieranddirtier.Asaresult，thereisnomorefishfor________(渔民)tocatch.3.Alotof________(工业的)wastewatercomesfromthefactories.4.Peopleusealargenumberof________(塑料)bagseveryday.Peopleare________(扔)thosebagseverywhere.Thisturnsthebeautifulcitiesinto________(丑陋的)ones.What'sworse，theyalsopollutetheearth.5.Thefactoriesthatburn________(煤)pollutetheairwithalotofblacksmoke.Theair________(污染)isgettingworseandworse.6.Atpresent，planesarewidelyusedinourdailylife，which，however，makesalotof________(噪音).7.Manyanimalsareendangeredbecauseofthe________(残酷的)hunting.8.Wearen'tabletoseestarsintheskyjustlikebefore.Theproblemisthatpeopleusetoomuch________(灯光).Andit'salso________(有害的)totheenvironment.9.Manythingsweusedmaybethrownawayandwehardlyever________(再利用)them.10.Weusenicepapertowrap(包装)thepresent.Doyouthinkthenicepaperis________(必要)ornot?(二)请将以上的环境问题进行分类，将序号填入以下相关的污染类别后。A:airpollution________B:noisepollution________C:waterpollution________D:wastepollution________(三)以下行为会导致哪些污染，请从(二)里选择。()1.blacksmoke()2.thehorn(喇叭)()3.washingclothesintheriver()4.smokingcigarettes()5.usethrow－awaychopsticks(四)Solutions:根据句意及首字母或汉语提示完成下列句子。●Tocutdownairpollution1.Ithinkweshouldn'tsmokeinp________.2.We'dbettertakethebusorsubway________(代替)ofdriving.●Tocutdownwaterpollution3.Everyoneshouldplayapartinc________uptheriver.4.Let'sstopfactoriesfrompouring________________(废水).5.Don't________(乱扔)rubbishintheriver.●Tocutdownwastepollution6.Wecould________(重复使用)theoldthings，suchasoldglassbottles，oldclothesandsoon.7.Peoplecould________(节约)electricitybyturningoffthelightswhentheyleavearoom.●Toprotectanimals8.Isuggestthatwecouldsetupvolunteergroupsto________(保护)endangeredanimals.9.Don'tusecruelm________tohunttheanimals.(五)Otherusefulexpressions:根据句意及首字母或汉语提示完成下列句子。1.Everyoneshouldplayapartins________theearth.2.Everyoneistryingto________(改善)theenvironment.3.Savingtheearthcan________________(以……开始)smallthings.二、篇章训练我们生活的地球正面临着巨大的环境压力，如空气污染、水污染、固体废弃物污染、动物濒临灭绝等问题。因此，将环保行动渗透到日常生活是我们每个人的责任。请你选择其中的一个问题，自拟题目，写一篇120词左右的英语短文，谈谈引起此问题的原因，并倡导公众如何从点滴做起来解决问题，使我们的世界变得更美好。【我的提纲】1.首先请选择你要讨论的环境问题:________2.引起此问题的原因:________3.如何从生活的点滴做起来解决问题:________请在“单元写作小专题(答题页)”相应位置完成。单元写作小专题&SectionB(3a～3b)一、语言积累(一)1.bottom；full；rubbish2.littering；pouring；fishermen3.industrial4．plastic；throwing；ugly5.coal；pollution6.noise7.cruel8．light；harmful9.recycle10.necessary(二)A.5B.6C.1，2，3D．4，9，10(三)1-5ABCAD(四)1.public2.instead3.cleaning4.wastewater5.litter6.reuse7.save8.protect9.methods(五)1.saving2.improve3.beginwith二、篇章训练Onepossibleversion：AirPollutionTheairisbadlypollutedaroundus.BecauseOurcitieshasmanyfactoriesthatburncoal.Everyyearthesefactoriespouralargeamountofblacksmokeintoair.Besidestherearemorecarsincitiesnow.Therearesomemethodstosolvetheproblem.Firstofall，weshouldaskthefactoriestostopgivingoutblacksmokeintoair.Next，we'dbetterridebikesorwalkinsteadofdrivingtoschool.Theadvantagesofbikeridingorwalkingarethatit'sgoodforhealthanditdoesn'tcostanything.What'smore，it'sagoodideatoplantmoretreesandflowers.Plantingtreesnotonlymakesaircleaner，butalsomakesourenvironmentmorebeautiful.Finally，weneedtorecyclebooksandpaperandstopusingpapernapkins.Thatcanhelpuscutdownfewerandfewertrees.Ithinkeveryoneshouldplayapartinsolvingtheairpollution.I'msurethatouractionscanmakeadifferenceandleadtoabetterfuture.