新标准大学英语三unit7

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1、TextCanbadluckbeexplained?Canbadluckbeexplained?1Toastalwayslandsbuttersidedown.Italwaysrainsonbankholidays.Youneverwinthelottery,butotherpeopleyouknowseemto...Doyouevergettheimpressionthatyouwerebornunlucky?Eventhemostrationalpersoncanbeconvincedattimesthatthereisaforceoutthere

2、makingmishapsoccurattheworstpossibletime.WeallliketobelievethatMurphy'sLawistrue(“ifitcangowrong,itwill”).Text2Partoftheexplanationforbadluckismathematical,butpartispsychological.Indeedthereisaverycloseconnectionbetweenpeople'sperceptionofbadluckandinterestingcoincidences.3Forex

3、ample,takethebeliefthat“badthingsalwayshappeninthrees”(justlikebuses...!)Thispopularnotionwouldbeunlikelytostandthescrutinyofanyscientificstudy,butitmusthavesomebasisinexperience,otherwisethephrasewouldneverhaveariseninthefirstplace.Whatmightbetherationalexplanation?Text4Thefirs

4、tquestionis“whatisbad?”5Somethingsareonlymarginallybad,forexamplethetrainarrivingfiveminuteslate.Someareextremelybad,suchasfailinganexamorbeingsacked.Sobadnessismuchbetterrepresentedasbeingonaspectrumratherthansomethingwhichisthereornotthere.Text6Aparticulareventmayonlybeamisfor

5、tunebecauseofthecircumstancesaroundit.Thetrainarrivingfiveminuteslateisaneutraleventifyouareinnohurryandreadinganinterestingnewspaperarticlewhileyouwait.Itisbadifyouarelateforanimportantmeeting.Text7Whenitcomestobadthingshappeninginthrees,whatmaybemostimportantofallistheduration

6、andmemorabilityofthefirstevent.Takeaburstpipewhileyouareawayonholiday,forexample.Itmaytakelessthananhourtofloodthehouse,butthisonebadeventcanremainaliveandkickingformanymonths,withthecleaningupoperationandthedebatewithyourinsurersactingasconstantremindersoftheoriginalevent.Text8

7、Thelongerthefirstbadeventsticksinthefrontofyourmind,themoreopportunitiesyouwillhavetoexperiencetwomorebadevents.Amonthlatersomeonebumpsthebackofyourcarandaweekafterthatyouloseyourweddingring.Themindwhichisalreadyonalowfromthefirsteventwillquicklyleaptoconnectthesubsequentmisfort

8、unesaspartoftheseries.Text9Aswithcoincidences,i