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1、选修6 Unit4 Globalwarming一、阅读理解ASocialnetworksareabigpartofnearlyeveryteenager'slifeinthisdayandage.ManyteenshaveQQ,WeChat,orWeibobutlittledoalotofteensknowthattheycanbeheldresponsibleforeverythingtheypostfortherestoftheirlives.Everythingyoupostonlineispartofadigitalfootprintt
2、hatcanalwaysbetraced(追踪)backtoyou.Thatincludeseverypost,eveneverylike,ment,favoriteandforwardthatyouhaveevermitted.Allpicturesyou'vepostedorwillposthavebeenstoredinadigitaldatabase,anditisthepanies'righttokeepallofthesedocumentsthatyoubelievetohavebeendeletedorhidden.Witheve
3、rypostesaconsequence;whetheritisgoodorbad，whatyoupostcouldbeseenbyanyone.Thatiswhyyouhavetobeverycarefulofwhatyoudecidetopostorment.IfyouthinkyouaresafefromServitefindingoutaboutonefunnymentyoumadesixmonthsagoonameaninglesspicture,youareprobablywrong.Recently,asenior,Aaron,a
4、tServitelearnedthislessonthehardwaythisyear.HewroteaseriesofuglymentstowardsConnellygirlsonawebpage,ignoringpotentialconsequences.Thisstudent,however,didhavetofaceconsequencesfromServiteashewasremovedfromallofhisleadershiprolesintheschool.Surprisinglyenough,hefullyagreedwith
5、hispunishmenthandeddownbytheadministrationandfullyunderstoodwhyhewasgivensuchseverediscipline(处罚)．“WhenyouagreetoetoServite,youareagreeingtodefendwhatServitestandsfor，”theyoungmansaid.“Thatcontinuesfrom8amto2pm.It'satalltimes.”So,nexttimeyou'reabouttopostsomethingyouthinkcou
6、ldbereceivedasoffensiveorinappropriate,thinktwice,ordon'tpressthe“Send”．【文章大意】 本文是一篇议论文。当下很多青少年拥有微信、QQ、微博等网络社交工具，但是他们很多人都不知道要对自己所发布的内容负责。文章通过一名高中生的事例说明，在网上发布信息应当慎重。1.Whatdoestheauthorthinktheteensshoulddointhefirstparagraph?A．Avoidusingsocialmedia.B．Removetheirowndigitaldocu
7、ments.C．Beresponsibleforwhattheyputonline.D．Learntobalancetheironlineandofflinetime.答案与解析：C'考查细节理解。根据第一段第二句“ManyteenshaveQQ,WeChat，orWeibobutlittledoalotofteensknowthattheycanbeheldresponsibleforeverythingtheypostfortherestoftheirlives.”可知，很多青少年都有QQ、微信或微博，但很多人都不知道，他们应当对自己在网上
8、发布的任何信息负责；据此可知，作者认为，青少年应当对他们发布在网上的信息负责，故C项正确。2.WhatmistakedidAaronmakeonlin
