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话题20科普知识与现代技术(Scienceandmoderntechnology),本文主要是分析移动公司热衷于4G的原因。1.C由文章最后一句可知。2.D由冒号后面所列的“没有宽带携带的信息量多”“打开网络和下载音乐的速度较Wi-Fi慢”等可知。3.B该段先后谈到用broadband,wirelessrouter,Wi-Fi和3G上网。4.thereasonwhymobilecompaniesaroundtheworldrecentlyaretryingtheirbesttodevelopandoffer4Gservice,美文研读,puter2.Iwork6.generation7.upgrade8.videomeeting9.stayconnected,复记强化,一、句子翻译1.itconvenient2.cannot,without,or3.sothateveryonehasmoreleisuretime.4.Aspeoplerelymoreandmoreontechnologytosolveproblems5.Thetechnologyismorethanjustcool.,知识运用,6.whichenablesyourcellphoneandtablettogoonlinetoo7.Thismeansthatacrossthecountry,allstudentshaveaccesstocomputersdailyintheirclassrooms.8.IfDNAdamageisnotrecognizedandrepairedintimethenitcanleadtoanytypeofcancer.,二、短文填空uniqueassumptionstradingskillsrandomscanningplayarolehaveworkedoutareassociatedwithdiscoveryslowdown,文章讲述通过两项研究分析了儿童看电视对学习成绩的影响。1.A细节理解题。根据第2段ThosewithTVsintheirbedroomsscoredabouteightpointsloweronmathandlanguageartsteststhanchildrenwithoutbedroomTVs可知。2.D细节理解题。根据第3段ButtheresultsdontprovethatTVisthecauseanddontruleoutthatalreadypoorlymotivatedyoungsters(年轻人）maywatchlotsofTV可知,电视和教育水平的联系很难解释清楚。,典型例题,3.C推理判断题。分析后两段尤其是最后一段可知,儿童卧室不应该放电视机。4.C推断目标读者。依据关键词children,Theirstudy和theirbedrooms等可推知。5.B主旨大意题。通读全文以及文章第1段第1句（主题句）可知,短文主要通过两项研究分析了儿童看电视所造成的影响。,构建积极的自我形象是进一步增强自信、关爱自己的有效途径之一。文章叙述了建立积极的自我形象的内容、途径和消除消极自我形象的意义。1.D细节理解题。本题题眼在第1段最后一句。关键是理解Ifyoufindthatbelievinginyourselfisachallenge，“当你觉得自信是一种挑战时”，也就是“当你不够自信时”。,实战演练,2.C细节理解题。由第2段中的Interestingly,ourself-imagesareoftenquitedifferentfromtheimagesothersholdaboutus.第4段最后一句Butremember,justbecauseyouthinkitdoesntmeanitstrue.和第5段第一句Thebestwaytogetridofanegativeself-imageistorealizethatyourimageisfarfromobjective,andtoactivelyconvinceyourselfofyourpositivequalities.可知很多时候自我形象是不真实的。,3.A细节理解题。由第2段最后一句Thuschangingthewayyouthinkaboutyourselfisthekeytochangingyourself-imageandyourwholeworld.和文章倒数第2句Changingthewayyouthinkandworkingonthoseyouneedtoimprovewillgoalongwaytowardspromotingapositiveself-image.可知。,4.B主旨大意题。第1段最后一句中有buildapositiveself-image，第3段首句的thebestwaytodefeatapassiveself-imageisto，最后一段的首句Thebestwaytogetridofanegativeserf-imageisto都是说明如何构建自我形象的。5.C推理判断题。由第1段第4句中weretheappleofourparentseyesourGrandmasthinkwere等可知，本文应当是写给青少年阅读的。,复记强化1.talent2.challenge3.tositive4.negative5.convince6.棘手的7.自我形象8.首要的；主要的9.趋势10.客观的；目标,
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