译林版高中英语学案选择性必修第三册精品课件 Unit 2 Out of this world 分层跟踪检测(三).ppt

译林版高中英语学案选择性必修第三册精品课件 Unit 2 Out of this world 分层跟踪检测(三).ppt

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02Unit2Outofthisworld;Ⅰ.阅读理解;Ifyouaretryingtorecallsomethingafteralongtime(itcanbeevenonehourforuselessinformation),yourbrainwillhaveahardtimefindingit,asit’smorelikelythatyouhaveforgottenit.Knowingthis,wecantrytounderstandwhyweforgetwhatwe’velearnedjustafewhoursago.Whenanewpieceofinformationentersyourbrain,itisstoredasunstableinformation,becauseyourbraindoesn’tknowwhetherit’susefulornot.Forexample,youdon’tneedtoremembereverycaryou’veseeninyourdailycommute(通勤)towork.

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Butwhathappenswhenyoutrytorecallsomethingyou’vepreviouslylearned?Mosttimesyousimplycan’t.IfIwouldtellyounowtofindthesumofthenumberfrom1ton,youhavetocalculate(n+1)×n/2,chancesarethatwithinonehourit’llbealreadyhardforyoutorecallthecorrectformula(公式),althoughit’sprettyeasy.Thishappensbecause(ifyouarenotgoodatmath)yourbraindoesnotfindsimilarinformationalreadystoredinyourbrain,soit’shardforittostrengthenthatinformationalone.Andbynowyou’veprobablyforgottenit.Asyou’vejustread,themajordifficultyforyourbrainistostrengthenandcreateconsistency,andthebestwaytohelpyourbraindoitistorecallwhatyou’vejustlearnedmanytimes.;【语篇导读】本文是一篇说明文。大多数人会在12到24小时内忘记他们刚学过的东西,因为刚接触到的信息只能以短时记忆的方式存储在大脑里,不加强化,很快就会被忘记。;2.Wecanlearnfromthetextthatwemayforgettheuselessinformation___.;3.Whatmighthappenwhenwetrytorememberthethingswe’vepreviouslylearned?();4.Whatcanwedoifwewanttorememberwhatwehavelearned?();B

Somenewcometshavebeendiscoveredaccidentallybyamateur(业余的)astronomers.Surprisingly,afewbrightcometshavebeendiscoveredwiththenakedeye(肉眼)bymembersofthegeneralpublic.However,agreatnumberofcometsarefoundbycomethunterscarryingouttelescopesearchesofchosenareasofthenightsky.

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