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1、CET-4作文的结构与模式3.利弊分析型利弊分析型作文通常要求考生就某一事物或社会现象的利与弊进行分析、阐述，最后以个人评论或观点为结论。利弊分析型作文第一段：导言+优点。简述事物或现象并列举说明其优点。第二段：列举说明其弊端（注意以表转折的过渡词引导）。第三段：简要评论利弊关系或简述个人体会。结构模式利弊分析型作文PositiveandNegativeAspectsofSports(1993.1)属于该模块的四级真题：本题型的写作重点在:“advantages&disadvantages”，即利弊论述。请看范文：ThePositive
2、andNegativeEffectsofComputers利弊分析型作文ThePositiveandNegativeEffectsofComputersItisgenerallyacceptedthatcomputersbenefithumanbeingsinmanyways.Buttheyhavealsocausedmanyproblems.Apparently,computershavebothadvantagesanddisadvantages.Computersarebeingusedmoreandmorewidelyinthe
3、worldtodayforthesimplestreasonthattheyarefarefficientthanhumanbeings.Computershavemuchbettermemoriesandcanstorehugeamountsofinformation,andtheycandocalculationsinafractionofthetimetakenbyahumanmathematician.Infact,computerscandoThePositiveandNegativeEffectsofComputers(1)
4、manyofthethingswedo,butfasterandbetter.Theycanpaywages,reserveseatsonaplane,controlmachinesinfactories,workouttomorrow’sweather,andevenplaychess,writepoetry,orcomposemusic.Nowadays,itisveryconvenientandeconomicaltodoanythingontheInternet,suchassendingorreceivinge-mail,sh
5、opping,advertising,makingfriends,andentertaining.Theglobewillbelikeanofficeorhome.Thisistheunprecedentedcharmofthecomputer.Inshort,computershavebeenmakingthewholeworldmuchmoreadvancedandcivilizedthaneverbefore.ThePositiveandNegativeEffectsofComputers(2)However,computersh
6、avebeencreatingmanyproblems.Firstly,virusesarisefrequently,bringinggreattroublestomanypeople.Secondly,somecomputer“experts”makehugeamountofmoneybycheatingacomputersystem,andtheyareverydifficulttocatch.Whatismore,somepeopletransmitpornographicinformationorpicturesontheInt
7、ernet,whichisharmfultoyoungpeople.Despitetheirdisadvantages,computershavebroughtusfarmorebenefitsthantroubles.ThePositiveandNegativeEffectsofComputers(3)利弊分析型的作文还包括两种变体题型，即只单纯进行好处分析或只单纯进行危害分析。在这两种题型写作中，结构模式有所调整：1)优点分析型结构模式：2)危害分析型结构模式：利弊分析型作文（一）优点分析型结构模式：第一段：导言+优点综述。第二段：
8、优点1。第三段：优点2+结论。属于该模块的四级真题：AdvantagesofJobInterviews(1995.6)请看范文:TheAdvantagesofPlanningforSuccess优点分析型作
