如果您无法下载资料，请参考说明：
1、部分资料下载需要金币，请确保您的账户上有足够的金币
2、已购买过的文档，再次下载不重复扣费
3、资料包下载后请先用软件解压，在使用对应软件打开
PAGE\*MERGEFORMAT12 概要写作范例五篇（附参考答案） 篇一： 阅读下面短文，根据其内容写一篇60词左右的内容概要。 Studentswhohaveusedelectroniccigarettesbythetimetheystartninthgradearemorelikelythanotherstostartsmokingtraditionalcigarettesandothertobaccoproductswithinthenextyear,accordingtoanewstudyfundedbytheNationalInstitutesofHealth.Electroniccigarettes,ore-cigarettes,delivernicotinetothelungsbyheatingaliquidsolutionthatcontainsnicotineandotherchemicalstoproduceaspraythattheusertakesin. AspartofasurveyofsubstanceuseandmentalhealthamonghighschoolstudentsinLosAngeles,thestudycomparedthestartoftobaccouseamong222studentswhohadusede-cigarettes,butnotanyothertobaccoproducts,and2,308whohadneitherusede-cigarettesoranyothertobaccoproductswheninitiallysurveyedatthestartofninthgrade.The2,530studentswhoinitiallyreportedneverusingtobaccounderwentfollow-upassessmentsaftersixand12months.Studentswereaskedaboutlifetimeandpastsix-monthuseofe-cigarettesoranyotherformsoftobaccoproducts. Duringthefirstsixmonthsafterbeingsurveyed,30.7percentofthosewhohadusede-cigarettesstartedusingtobaccoproducts,suchascigarettes,andcigars,comparedtoonly8.1percentofthosewhohadneverusede-cigarettes.Overthefollowingsixmonthsleadingintothestartof10thgrade,25.2percentofe-cigaretteusershadusedtobaccoproducts,comparedtojust9.3percentofnonusers. “Whileteentobaccousehasfalleninrecentyears,thisstudyconfirmsthatweshouldcontinuetocloselywatchteensmokingpatterns,”saidNIDADirectorNoraD.Volkow,M.D.“Parentsandteensshouldrecognizethatalthoughe-cigarettesmightnothavethesameharmfuleffectsofregularcigarettes,theydocarryariskofaddiction.” “Recreationale-cigaretteuseisbecomingincreasinglypopularamongteenswhohaveneversmokedtobacco,”saidAdamM.Leventhal,Ph.D.,thefirstauthoronthestudy.“Whilewecannotconcludethate-cigaretteusedirectlyleadstosmoking,thisresearchraisesconcernsthatrecentincreasesinyouthe-cigaretteusecouldultimatelyleadtothespreadofsmoking-relatedillness." 【参考答案】Asindicatedinanewstudy,earlyexposuretoe-cigarettesmaytriggertobaccosmokinginteens.(要点一)Compar
王子****青蛙
实名认证
内容提供者
实名认证
内容提供者
最近下载
