2025年专升本英语模拟试题七.doc

专升本英语模拟试题（七）

模拟试题（七）

PartIReadingComprehension(40%35minutes)

Directions:Inthisparttherearefourpassages.Eachpassageisfollowedbyanumberofcomprehensionquestions.Readthepassageandchoosethebestanswertoeachquestion.Then,markyouranswerbyblackeningthecorrespondingletterontheAnswerSheet.

Questions1to5arebasedonthefollowingpassage:

Supposewebuiltarobot(机器人)toexploretheplanetMars.Weprovidetherobotwithseeingdetectors(探测器)tokeepitawayfromdanger.Itispoweredentirelybythesun.Shouldweprogramtherobottobeequallyactiveatalltimes?No.Therobotwouldbeusingupenergyatatimewhenitwasnotreceivingany.Sowewouldprobablyprogramittostopitsactivityatnightandtowakeupatdawnthenextmorning.

Accordingtotheevolutionary(进化的)theoryofsleep,evolutionequippeduswitharegularpatternofsleepingandwakingforthesamereason.Thetheorydoesnotdeny(否认)thatsleepprovidessomeimportantrestorativefunctions(恢复功能).Itmerelysaysthatevolutionhasprogrammedustoperformthosefunctionsatatimewhenactivitywouldbeinefficientandpossiblydangerous.However,sleepprotectsusonlyfromthesortoftroublewemightwalkinto;itdoesnotprotectusfromtroublethatcomeslookingforus.Sowesleepwellwhenweareinafamiliar,safeplace,butwesleeplightly,ifatall,whenwefearthatbearswillnoseintothetent.

Theevolutionarytheoryexplainsthedifferencesinsleepamongcreatures.Whydocats,forinstance,sleepsomuch,whilehorsessleepsolittle?Surelycatsdonotneedfivetimesasmuchrepairandrestorationashorsesdo.Butcatscanaffordtohavelongperiodsofinactivitybecausetheyspendlittletimeeatingandareunlikelytobeattackedwhiletheysleep.Horsesmustspendalmostalltheirwakinghourseating,becausewhattheyeatisverylowinenergy＆#118alue.Moreover,theycannotaffordtosleeptoolongorto