时讯：2018年6月英语四级阅览真题

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年上半年全国大学英语四六级考试将于6月16日举行，澎湃教育将全天候关注，给你带来第一手四六级考试信息。 以下是一些英语四级阅读真题。

section a

directions: in this section，there is a passage with ten blanks。 youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage。 readthepassagethroughcarefullybeforemakingyourchoices。 echchoiceinthebankisidentifiedbyaletter。 pleasemarkthecorrespondingletterforeachitemonanswersheet2withasinglelinethroughthecentre。 youmaynotuseanyofthewordsinthebankmorethanonce。

since the 1940s，southerncaliforniahashadareputationforsmog。 thingsarenotasbadastheyoncewerebut，accordingtotheamericanlungassociation， losangelesisstilltheworstcityintheunitedstatesfor gazingdownonthecityfromthegettycenter，anartmuseuminthesantamonicamountains， onewouldfindtheviewofthepacificoceanbluredbthy noris the state’sb adair 27 toits south。 fresno，in the central valley，comestopofthelistinamericaforyear-round pollution。 residents’heartsandlungsareaffectedasa 28。

all of which，combinedwithcalifornia’sreputationasthehomeoftechnological 29， makestheplaceidealfordevelopingandtestingsystems and that is just what a clima，a new firm in san francisco，hasbeendoingoverthepastfewmonths ithasbeentryingoutmonitoringthatare 31 toyieldminute-to-minute maps of 32 air pollution。 suchstationswillalsobeabletokeepaneyeonwhatishappeninginsidebuildings，including offices。

to this end，aclimahasbeen 33 with Google’sstreetviewsystem。 davida herzl，a clima’s boss，saystheyhaverevealedpollutionhighsondayswhensanfrancisco’stransitworkerswentonstrikeandthice conver

a) assisted i) inhabitants

b) collaborating j) innovation

c) consequence k) intended

d) consumers l) outdoor

e) creating m) pollutants

f )详细信息n )受限制

g) domestic o) sum

h) frequently

第section c组)

direction:there are2passagesinthissection。 echpassageisfollowedbysomequestionsorunfinishedstatement。 foreachofthemtherearefourchoiceandourmarkeda )，b )，c) and d )。 youshoulddecideonthebestchoiceandnarkthecorrespondingletteronanswersheet2withasinglelinethroughthecentre。

passage one

questions 46 to 50 arebasedonthefollowingpassage。

losingyourabilitytothinkandrememberisprettyscary。 we know the risk of dementia (痴呆) increases with age。 but if you have memory slips，youprobablyneedn’t worry。 thereareprettycleardifferencesbetweensignsofdementiaandage-relatedmemoryloss。

after age 50，it’squitecommontohavetroublerememberingthenamesofpeople，places and thing quickly，says dr。 kirkdaffnerofbrighamandwoman’shospitalinboston。

thebrainagesjustliketherestofthebody。 certain parts shrink，especiallyareasinthebrainthatareimportanttolearning，memory and planning。 changesinbraincellscanaffectcommunicationbetweendifferentregionsofthebrain。 andbloodflowcanbereducedasbloodvesselsnarrow。

forgettingthenameofanactorinafavoritemovie，for example，is nothing to worry about。 butifyouforgettheplotofthemovieordon’trememberevenseeingit，that’sfarmoreconcerning，daffner says。

when you forget entire experiences、he says、that’s“aredflagthatsomethingmoreseriousmaybeinvolved”。 forgettinghowtooperateafamiliarobjectlikeamicrowaveoven，orforgettinghowtodrivetothehouseofafriendyou’vevisitedmanytimefes

but even then，daffner says，People shouldn’t Panic。 therearemanythingsthatcancauseconfusionandmemoryloss，includinghealthproblemsliketemporarystoppageof

defenseagainstmemorylossistotrytopreventitbybuildingupyourbrain’scognitive (已识别) reserve，daffner says。

“read books，go to movies，takeonnewhobbiesoractivitiesthatforceonetothinkinnovelways，”he says。 in other words，keep your brain busy and working。 and also get physically active，becauseexerciseisaknownbrainbooster。

46。 whydoestheauthorsaythatoneneedn’tbeconcernedaboutmemoryslips？

a ) notallofthemaresymptomsofdementia。

b ) theyoccuronlyamongcertaingroupsofpeople。

c ) notallofthemarerelatedtoone’sage。

d ) theyarequitecommonamongfifty-year-olds。

47。 whathappensaswebecomeagedaccordingtothepassage？

a)ourinteractionskills目录。

b ) somepartsofourbrainstopfunctioning。

c ) communicationwithinourbrainweakens。

d) our whole brain starts shrinking。

48。 which memory-relatedsymptomshouldpeopletakeseriously？

a ) totallyforgettinghowtodoone’sdailyroutines。

b ) Inabilitytorecalldetailsofone’s life experiences。

c ) failuretorememberthenamesofmoviesoractors。

d ) occasionallyconfusingtheaddressesofone’sfriends。

49。 whatshouldpeopledowhensignsofseriousmemorylossshowup？

a ) check the brain’scognitivereserve。 c ) turntoaprofessionalforassistance。

b ) stopmedicationsaffectingmemory。 d ) exercisetoimprovetheirwell-being。

五十。 whatisdrdaffner’sadviceforcombatingmemoryloss？

a ) havingregularphysicalandmentalcheckups。

b ) takingmedicinethathelpsboostone’s brain。

c ) engaginginknownmemoryrepairactivities。

d ) stayingactivebothphysicallyandmentally。

第section c组)