2016年普通高等学校招生全国统一考试英语科试题任务型阅读北京卷第二节（共小题；每小题分。共分）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-SeekingSometimesWedecidethatalittleunnecessarydangerisworthitbecausewhenweweightheriskandthereward,theriskseemsworthtasking.71Someofusenjoyactivitiesthatwouldsurpriseandscaretherestofus.Why?Expertssayitmayhavetodowithhowourbrainswork.Thereasonwhyanyofustakeanyrisksatallmighthavetodowithearlyhumans.Risk-takerswerebetterathunting,fighting,orexploring.72AsthequalityofRisk-takingwaspassedfromonrationtothenext,humansendedupwithasenseofadventureandatoleranceforrisk.Sowhyaren'twealljumpingoutofairplanesthen?Well,even200,000yearsago,toomuchrisk-takingcouldgetoneKilled.Afewdaringsurvived,though,alongwithafewstay-in-the-cavetypes.Asaresult,humansdevelopedarangeofcharactertypesthatstillexiststoday.Somaybeyoulovecarracing,ormaybeyouhateit.73Nomatterwhereyouareontherisk-seekingrange,scientistssaythatyourWillingnesstotakerisksincreasesduringyourteenageyears.74Tohelpyoudothat,yourbrainincreasesyourhungerfornewexperiences.Newexperiencesoftenmeantakingsomerisks,soyourbrainraisesyourtoleranceforriskaswell.Meantakingsomerisks,soyourbrainraisersyourtoleranceforriskaswell.75Fortherisk-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.71.F72.C73.A74.E75.G课标卷第二节（共5小题，每小题2分，满分10分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。Secretcodes（密码）keepmessagesprivateoBanks,companies,andgovernmentagenciesusesecretcodesindoingbusiness,especiallywheninformationissentbycomputer.Peoplehaveusedsecretcodesforthousandsofyears.36Codebreakingneverlags（落后）farbehindcodemaking.Thescienceofcreatingandreadingcodedmessagesiscalledcryptography.Therearethreemaintypesofcryptography.37Forexample,thefirstlettersof“Myelephanteatstoomanyeels"Spelloutthehiddenmessage“Meetme."38Youmightrepresenteachletterwithanumber,forexample,Let'snumberthelettersofthealphabet,inorder,from1to26.Ifwesubstituteanumberforeachletter,themessage“Meetme"wouldread“13520135."Acodeusessymbolstoreplacewords,phrases,orsentences.Toreadthemessageofarealcode,youmusthaveacodebook.39Forexample,“bridge"mightstandfor“meet"and“out"mightstandfor“me."Themessage“bridgeout"wouldactuallymean“Meetme."40However,itisalsohardtokeepacodebooksecretforlong.Socodesmustbechangedfrequently.A.Itisveryhardtobreakacodewithoutthecodebook.B.Inanylanguage,somelettersareusedmorethanothers.C.Onlypeoplewhoknowthekeywordcanreadthemessage.D.Aslongastherehavebeencodes,peoplehavetriedtobreakthem.E.Youcanhideamessagebyhavingthefirstlettersofeachwordspellitout.F.Withacodebook,youmightwritedownwordsthatwouldstandforotherwords.G.Anotherwaytohideamessageistousesy...
