sometimes，you just can’t help it．阅读理解答案

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1、Sometimes，youjustcan’thelpit．阅读理解答案　　Sometimes，youjustcan’thelpit．Maybeyou’rewatchingasadmovie，orthinkingaboutthefriendwhomovedaway．Nextthingyouknow，youreyesarewatering，andyouhavetearsrunningdownyourcheeks．Whydopeoplecrywhentheyareemotional?Whataretears?Scienti

2、stsareworkinghardtofindtheanswerstothesequestions．　　AdVingerhoetsisaprofessorofpsychologyatTilburgUniversity，intheNetherlands．Heisoneofthefewscientistsintheworldwhohavestudiedcrying．AccordingtoVingerhoets，therearethreetypesoftears．Basaltearsarethefirsttype．They

3、lubricate(润滑)theeyesandactasaprotectivebarrierbetweentheeyeandtherestoftheWorld．Nextarereflextears．Theywashyoureyescleanwhensomethinggetsinthem．Finally，thereareemotionaltears.“Thesearereleasedinresponsetoemotionalstates，”explainsVingerhoets．“Especiallywhenwefee

4、lhelpless．”　　Scientistsbelievethatcryinghassomethingtodowithhowhuman　　　　sdevelopedandlearnedtodependoneachother．“Humansareverycomplexsocialcreatures，”saysLaurenBylsma，aprofessorattheUniversityofPittsburgh，inPennsylvania．“Itseemsthattearsservetoarousehelpandsupp

5、ort．fromothers，’’Shesays．“Anotherreasonweweepisthathumanshavethelongestdevelopmentalperiodofalmostanyanimal．Ittakesalongtimetogrowup．”　　Vingerhoetsagrees．“Ithinkthatthereasonwhyhumansshedtears(流眼泪)hassomethingtodowithourchildhood，”hesays．“That’sthetimewhenweare

6、stirdependentonadultsforloveandprotectionandcare．Themajoradvantageofemotionaltearsisthatyoucantargetthemataspecificperson．”Vingerhoetssaysthisabilitytotargetsomeonecouldhavecomeinhandinprehistorictimes，whenhumanswerelivingamongdangerousanimals．Cryingcouldattrac

7、tpredators(捕食者)．Tearswereasaferwaytogetattention．Inthiscase，itisbettertouseasilentsignaltoaskforhelp，”hesays．　　　　VingerhoetsandBylsmadofrequentstudiestobetterunderstandwhyhumanscry．AccordingtoByhma，thereisstillmuchmoretodiscover．“It’ssurprising，”shesays，“howmuc

8、hwestiildon’tknow．”　　32．Whichofthefollowingisreflextears?　　A．Tearswheneyesaredry．B．Tearsmovedbyastory．　　C．Tearsreleasedwhencrying．D．Tearswhendirtgetsintoeyes．　　33．What’sthef