职称英语理工类阅读理解新增文章].doc

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1、2012年职称英语理工类新增文章阅读理解（6篇）第六篇MakingLightof1Sleep第十九篇Graphene'sSuperstrength1*第三＋八篇"LifeFormFound"onSaturn'sTitan*第四十篇TeachingMath,TeachingAnxiety+第四＋五篇TeachingMath,TeachingAnxiety+第四十六篇AntsHaveBigImpactonEnvironmentas"EcosystemEngineers"注：1、+表示A级文章；*表示B即文章；其他为

2、C级文章2、阅读理解3、2012年词汇部分与2011年教材相比未作任何变化阅读理解第六篇MakingLightof1SleepAllwehaveaclocklocatedinsideourbrains.Similartoyourbedsidealarmclock，yourinternalclock2runsona24-hourcycle.Thiscycle，calledacircadianrhythm，helpscontrolwhenyouwake，whenyoueatandwhenyousleep.Somew

3、herearoundpuberty，somethinghappensinthetimingofthebiologicalclock.Theclockpushesforward，soadolescentsandteenagersareunabletofallasleepasearlyastheyusedto.Whenyourmothertellsyouit'stimeforbed，yourbodymaybepushingyoutostayup3forseveralhoursmore.Andthelightcomi

4、ngfromyourcomputerscreenorTVcouldbepushingyoutostayupevenlater.Thisshift4isnaturalforteenagers.Butstayingupverylateandsleepinglatecangetyourbody'sclockoutofsyncwiththecycleoflightanddark5.Itcanalsomakeithardtogetoutofbedinthemorningandmaybringotherproblems，t

5、oo.Teenagersareputinakindofagraycloud6whentheydon'tgetenoughsleep，saysMaryCarskadon，asleepresearcheratBrownUniversityinProvidence，RI7.Itaffectstheirmoodandtheirabilitytothinkandlearn.Butjustlikeyouralarmclock，yourinternalclockcanbereset.Infact，itautomaticall

6、yresetsitselfeveryday.How?Byusingthelightitgetsthroughyoureyes.Scientistshaveknownforalongtimethatthelightofdayandthedarkofnightplayimportantrolesinsettingourinternalclocks.Foryears，researchersthoughtthatthesignalsthatsynchronizethebody'sclock8werehandledthr

7、oughthesamepathwaysthatweusetosee.Butrecentdiscoveriesshowthatthehumaneyehastwoseparatelight-sensing22/22systems.Onesystemallowsustosee.Thesecondsystemtellsourbodywhetherit'sdayornight.词汇：circadian/s3:'keidiən/adj.昼夜节奏的，生理节奏的adolescent/ædəu'lesənt/n．青少年；adj．

8、青少年的puberty/'pju:bəti/n．发育；青春期sync/siŋk/n.（口语）同步；和谐，协调synchronize/'siŋkrənaiz/V.（使）同时发生；（使）同步注释：1.makelightof：轻视，不在乎。例如：Weshouldnotmakelightoftheirachievements．我们不应当低估他们的成就。2.yourinternalclock：指