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【话题解读】随着科学技术的发展，每个人在生活中都会与各种科技产品打交道。这些高科技产物一方面给我们带来了便利，另一方面也给我们造成了一些困扰。有关科技的话题，尤其是手机、网络等，成了时下热点，也成了中考的焦点。针对此类话题的写作通常需要考生分析当前的现象，然后阐明自己的观点。写作结构一般为：描述现象—正面观点—反面观点—最后表明作者的观点。写这类议论文时，要注意观点必须鲜明，不能模棱两可，而且要有严密的逻辑性。【实例讲解】对于“中学生在校是否可以使用手机”,不同学生有不同的看法,请你根据下面表格中的提示写一篇短文,向某英语报社投稿。观点赞成反对理由1.便于联系……2.获取信息……1.浪费时间……2.危害身心健康……你的观点及理由要求：①包含所有要点，不逐字翻译，围绕要点适当发挥；②书写规范、工整，条理清晰；③文中不得出现真实人名、地名、校名等；④词数:80—100词，短文开头已给出，不计入总词数。Canmiddleschoolstudentsusemobilephonesatschool?Nowadays,moreandmoreteenagersusemobilephones.Canmiddleschoolstudentsusemobilephonesatschool?Differentstudentshavedifferentopinionsaboutit.___________________________________________________________________________________________________________________________【分析】该书面表达任务是命题写作，题目中给出了作文的标题并在首段描述了要讨论的现象。从首段最后一句中的differentopinions以及表格中的提示信息可知接下来要先列举正反方的观点，最后再表明自己的观点及理由。文章是议论文，应以一般现在时态为主。写作时要列举清楚理由，并注意各个理由之间的衔接。【标准范文】Canmiddleschoolstudentsusemobilephonesatschool?Nowadays,moreandmoreteenagersusemobilephones.Canmiddleschoolstudentsusemobilephonesatschool?Differentstudentshavedifferentopinionsaboutit.Somestudentsthinktheycanusemobilephonesatschool.First,it'sconvenientforthemtocalltheirparents,teachersorfriends.Second,theycansearchwhattheyneedontheirmobilephones.Forexample,theycanlookupnewwordsandlookthroughnews.Ontheotherhand,otherstudentsdisagree.Theythinkusingmobilephoneswastestime.ManystudentsspendtoomuchtimeinplayinggamesandchattingonQQorWeChat.Besides,it'sunhealthyforstudents'mindandbody.Inmyopinion,studentscan'tusemobilephonesatschool.It'sbadfortheirhealthandstudies.【高分突破】Canmiddleschoolstudentsusemobilephonesatschool?Nowadays,moreandmoreteenagersusemobilephones.Canmiddleschoolstudentsusemobilephonesatschool?Differentstudentshavedifferentopinionsaboutit.Somestudentsthinktheycanusemobilephonesatschool.Aboveall,mobilephonescanhelpthemkeepintouchwithothers.Secondly,informationisimmediatelyavailable.However,otherstudentsdisagree.Theythinkusingmobilephonesisawasteoftime.Besides,it'sharmfultothemindandthebody,becausestudentscangetunhealthyinformationordamagetheireyesight.Inmyopinion,studentsshouldbeallowedtousemobilephonesatschool.Everycoinhastwosides.Thoughmobilephonesbringusproblems,theyalsohavemanyadvantages.SoIsuggeststudentsusemobilephonesonlywhennecessaryatschool.【高分揭秘】1.文章段落层次清晰，正反方观点表述清楚，时态使用正确。2.作者在介绍正反方理由时，用到了aboveall,secondly,besides等连接词，使得文章富有条理性和逻辑性。3.作者在表明自己的观点时有理有据，语言准确、凝练，并且还使用了一句谚语。4.作者使用了一些地道的表达，如keepintouchwith,awasteoftime,beharmfulto,beallowedto等，这为文章增色不少。【素材积累】1.词汇手机的优点：communication,message,picture,video,information,contact,emergency,surftheInternet,getintouchwith手机的缺点：electromagneticradiation(电磁辐射),sightloss,ring,interrupt,disturb,noisy2.句子Scienceplaysanimportantpartinourlife.Generally,itsadvantagescanbeseenasfollows.Computerscandomostofthethingspeoplecando.Usingsmartphonesdistractsourattentionfromourlessons.Throughtheabove,Ibelievethatthepositiveaspectsoverweighthenegativeones.Somestudentsspendtoomuchtimeonline,playingelectronicgamesandsendingtextmessagesafterclass.