每天前20名注册可获免费名师辅导名额有限真人一对一口语训练抢注网址：www.englishvip.com/wenkxd.htm洛基国际英语竭诚为您服务作为四六级考试的重要题型，阅读的练习不可小觑。每日精选《卫报》《时代周刊》等外刊上的精华文章，带你扩大视野，积累词汇，提高阅读速度！【今日阅读推荐】本篇阅读材料“为什么太长的课程没效率”选自《Time》（原文标题：WhyLongLecturesAreIneffective2012.10.2）。Eachschoolday,millionsofstudentsmoveinHYPERLINK"http://dict.hjenglish.com/w/unison"\t"_blank"unisonfromclassroomtoclassroomwheretheylistento50-to90-minutelectures.Despitetherebeinganywherefrom20to300humansintheroom,thereislittleactualinteraction.ThismodelofeducationissoHYPERLINK"http://dict.hjenglish.com/w/commonplace"\t"_blank"commonplacethatwehaveaccepteditasagiven.Forcenturies,ithasbeenthemosteconomicalwayto“educate”alargenumberofstudents.Today,however,weknowaboutthelimitationsoftheclasslecture,sowhydoesitremainthemostcommonformat?In1996,inajournalcalledtheNationalTeaching&LearningForum,twoprofessorsfromIndianaUniversity—JoanMiddendorfandAlanKalish—describedhowresearchonhumanattentionandHYPERLINK"http://dict.hjenglish.com/w/retention"\t"_blank"retentionspeaksagainstthevalueoflonglectures.Theyciteda1976studythatdetailedtheebbsandflowsofstudents’focusduringatypicalclassperiod.Breakingthesessiondownminute-by-minute,thestudy’sauthorsdeterminedthatstudentsneededathree-tofive-minuteperiodofsettlingdown,whichwouldbefollowedby10to18minutesofHYPERLINK"http://dict.hjenglish.com/w/optimal"\t"_blank"optimalfocus.Then—nomatterhowgoodtheteacherorhowcompellingthesubjectmatter—therewouldcomeaHYPERLINK"http://dict.hjenglish.com/w/lapse"\t"_blank"lapse.IntheHYPERLINK"http://dict.hjenglish.com/w/vernacular"\t"_blank"vernacular,thestudentswould“loseit.”Attentionwouldeventuallyreturn,butineverbrieferpackets,falling“tothree-orfour-minute[HYPERLINK"http://dict.hjenglish.com/w/spurt"\t"_blank"spurts]towardstheendofastandardlecture,”accordingtothereport.Thisstudyfocusedoncollegestudents,andofcourseitwasdonebeforetheageoftextingandtweeting;HYPERLINK"http://dict.hjenglish.com/w/presumably"\t"_blank"presumably,theattentionspansofyoungerpeop