专题6第3课时说明文的写作要领

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1、第3课时说明文的写作要领(东莞高级中学2010－2011学年高三下学期二模测试)阅读下面的短文，然后按照要求写一篇150词左右的英语短文。TherehavebeenmanytypesofecologicaldisasterscausedtotheAustralianecosystembyintroducingotheranimals.Themostfamousonewastheintroductionoftherabbit.TherabbitsinAustraliaaremostlyfromagroupofwildrabbitsinsoutheas

2、ternAustralia.Thesewerereleasedinthehopeofstartingabusinesssellingrabbits'skin.Thisdidactuallyhappen,buttherewasnothingtostoptherabbitsspreadingtotherestofmainlandAustralia.Nowwehavebillions.Theycompetewiththenativeanimals,damagethevegetationandseverelyreducethepotentialcarryi

3、ngcapacityofthelandforgrasseatinganimalslikesheepandcattle.Aswellasthedisasterscausedtothelandecosystem,therehavebeenonesinthewater.ThemostobviousonewasthedeliberateintroductionofEuropeancarp(欧洲鲤鱼)totheRiverMurray.Thecarpwereintroducedtoeattheweedsgrowingintheriver.Nowtheyhave

4、takenovermuchoftheriver'secosystemandseverelyreducedthenumberofnativefish.NotalldestructiveintroductionsinAustraliawereofforeignspecies.ThereareseveralcasesofnativeAustraliananimalsbeingtakentodifferentplacesinAustraliaandcausingdestruction.KoalaswereintroducedtoKangarooIsland

5、andincreasedtosuchanextentthattheyarekillingofftheMannaGumtrees.【写作内容】1.以约30个词概括阅读材料的主要内容；2.由于人类无休止地向大自然索取，无限制地掠夺自然，造成了资源枯竭等。大自然毫不留情地对人类进行了报复。请你以约120个词谈谈你对人类和大自然和谐相处的看法，内容包括：(1)你认为人类为什么要与大自然和谐相处？(2)举例说明人类与大自然由于不和谐相处而带来的灾害。(3)在日常生活中，我们应该怎样与大自然和谐相处。【写作要求】1.作文中可以使用自己亲身的经历或虚构的故事，也

6、可以参照阅读材料的内容但不得直接引用原文中的句子；2.作文中不能出现真实姓名和学校名称。【评分标准】概括准确，语言规范，内容合适，篇章连贯。Onepossibleversion：ThepassagemainlytellsusaboutsometypesofdisasterscausedtotheAustralianecosystembyintroducingotheranimalssuchastheintroductionoftherabbittothemainlandandEuropeancarptotheRiverMurray.Thenatur

7、albalanceinanecosystemmustbemaintained.Thisbalancemaybedisturbedduetotheintroductionofnewspecies,thesuddendisappearanceofsomespeciesandespeciallymanmadecauses.Oncedamaged,itwilltakealongtimetorecover.Intheearlytwentiethcentury,Roosevelt,PresidentoftheUS,orderedtokillcruelwolve

8、stoprotectlovelydeerinoneoftheflourishingforestsinArizona.The