专题6 七选五_8

（2016·北京）根据短文内容，从短文后的七个选项中选出正确的填入空白处。选项中有两项为多余选项。
 
TheScienceofRisk-Seeking
 
SometimesWedecidethatalittleunnecessarydangerisworthitbecausewhenweweightheriskandthereward,theriskseemsworthtaking.【小题1】Someofusenjoyactivitiesthatwouldsurpriseandscaretherestofus.Why?Expertssayitmayhavetodowithhowourbrainswork.
 
Thereasonwhyanyofustakeanyrisksatallmighthavetodowithearlyhumans.Risk-takerswerebetterathunting,fighting,orexploring.【小题2】AsthequalityofRisk-takingwaspassedfromonrationtothenext,humansendedupwithasenseofadventureandatoleranceforrisk.
 
Sowhyaren’twealljumpingoutofairplanesthen?Well,even200,000yearsago,toomuchrisk-takingcouldgetoneKilled.Afewdaringsurvived,though,alongwithafewstay-in-the-cavetypes.Asaresult,humansdevelopedarangeofcharactertypesthatstillexiststoday.Somaybeyoulovecarracing,ormaybeyouhateit.【小题3】
 
Nomatterwhereyouareontherisk-seekingrange,scientistssaythatyourwillingnesstotakerisksincreasesduringyourteenageyears.【小题4】Tohelpyoudothat,yourbrainincreasesyourhungerfornewexperiences.Newexperiencesoftenmeantakingsomerisks,soyourbrainraisesyourtoleranceforriskaswell.
 
Meantakingsomerisks,soyourbrainraisersyourtoleranceforriskaswell.
 
【小题5】Fortherisk-seekersapartofthebrainrelatedtopleasurebecomesactive,whilefortherestofus,apartofthebrainrelatedtofearbecomesactive.
 
Asexpertscontinuetostudythescienceofrisk-seeking,we’llcontinuetohitthemountains,thewavesortheshallowendofthepool.A．Italldependsonyourcharacter.B．Thosearetherisksyoushouldjumptotake.C．Beingbetteratthosethingsmeantagreaterchanceofsurvival.D．Thus,thesewell-equippedpeoplesurvivedbecausetheywerethefittest.E.Thisiswhenyoustarttomoveawayfromyourfamilyandintothebiggerworld.
 
F.However,wearenotallusingthesamereferencestandardtoweighrisksandrewards.
 
G.Newbrainresearchsuggestsourbrainsworkdifferentlywhenwefaceanervoussituation.