大学英语六级阅读历年真题训练unit4(A)

免费？宅在家学英语？怎么报名？最牛英语口语培训模式：躺在家里练口语，全程外教一对一，三个月畅谈无阻！洛基英语，免费体验全部在线一对一课程：（报名网址）Unit4PartⅡReadingComprehension(35minutes)Directions:Thereare4readingpassagesinthispart.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD).YoushoulddecideonthebestchoiceandmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecentre.Questions21to25arebasedonthefollowingpassage:“Thereisasenselessnotionthatchildrengrowupandleavehomewhenthey're18,andthetruthisfarfromthat,”sayssociologistLarryBumpassoftheUniversityofWisconsin.Today,unexpectednumbersofyoungadultsarelivingwiththeirparents.“Thereisamajorshiftinthemiddleclass,”declaressociologistAllanSchnaibergofNorthwesternUniversity,whoseson,19,movedbackinafteranabsenceofeightmonths.Analystsciteavarietyofreasonsforthisreturntothenest.Themarriageageisrising,aconditionthatmakeshomeanditspleasantnessparticularlyattractivetoyoungpeople.Ahighdivorcerateandadecliningremarriageratearesendingeconomicallypressedandemotionallyhurtsurvivorsbacktoparentalshelters.Forsome,theexpenseofanaway-from-homecollegeeducationhasbecomesoexcessivelygreatthatmanystudentsnowattendlocalschools.Evenaftergraduation,youngpeoplefindtheirwingsclippedbyskyrocketinghousingcosts.Livingathome,saysKnighton,aschoolteacher,continuestogivehersecurityandmoralsupport.Hermotheragreed,“It'sridiculousforthekidstopayallthatmoneyforrent.Itmakessenseforkidstostayathome.”Butsharingthefamilyhomerequiresadjustmentsforall.Therearethehasslesoverbathrooms,telephonesandprivacy.Somefamilies,however,managethedelicatebalancingact.Butforothers,itprovestoodifficult.MichelleDelTurco,24,hasbeenhomethreetimes—andleftthreetimes.“WhatIconsideredasocialdrink,mydadconsideredanalcoholproblem,”sheexplains.“HeneverlikedanyoneIdated,soIeitherhadtohideawayormeetthematfriends'houses.”Justhowlongshouldadultchildrenlivewiththeirparentsbeforemovingon?Mostpsychologistsfeellengthyhomecomingsareamistake.Childrenstrugglingtoestablishseparateidentities,canendupwith“asenseofinadequacy,defeatandfailure.”Andagingparents,whoshouldbeenjoyingsomefinancialandpersonalfreedom,findthemselvesstuckwithresponsibilities.Manyagreethatbriefvisits,however,canworkbeneficially.21.Accordingtotheauthor,therewasonceatrendintheU.S_______.A)formiddleclassyoungadultstostaywiththeirparents免费？宅在家学英语？怎么报名？B)foryoungadultstoleavetheirparentsandliveindependentlyC)formarriedyoungadultstomovebackhomeafteralengthyabsenceD)foryoungadultstogetjobsnearbyinordertolivewiththeirparents22.Whichofthefollowingdoesnotaccountforyoungadultsreturningtothenest?A)Youngadultsfindhousingcoststoohigh.B)Quiteanumberofyoungadultsattendlocalschools.C)Youngadultsseekparentalcomfortandmoralsupport.D)Youngadultsarepsychologicallyandintellectuallyimmature.23.Oneofthedisadvantagesofyoungadultsreturningtostaywiththeirparentsisthat_______.A)theyoungadultstendtobeoverprotectedbytheirparentsB)mostparentsfinditdifficulttokeepabiggerfamilygoingC)therewillinevitablybeinconveniencesineverydaylifeD)publicopinionisagainstyoungadultsstayingwiththeirparents24.Theword“hassles”inthepassage(Para.3,Line4)probablymeans.A)quarrelsB)worriesC)disadvantagesD)agreements25.Accordingtothepassagewhatisthebestforbothparentsandchildren?A)Theyshouldadjustthemselvestosharingthefamilyexpenses.B)Childrenshouldleavetheirparentswhentheyaregrownup.C)Adultchildrenshouldvisittheirparentsfromtimetotime.D)Parentsshouldsupporttheiradultchildrenwhentheyareintrouble.Questions26to30arebasedonthefollowingpassage:Thewordconservationhasathrifty(节俭)meaning.Toconserveistosaveandprotect,toleavewhatweourselvesenjoyinsuchgoodconditionthatothersmayalsosharetheenjoyment.Ourforefathershadnoideathathumanpopulationwouldincreasefasterthanthesuppliesofrawmaterials;mostofthem,evenuntilveryrecently,hadthefoolishideathatthetreasureswere“limitless”and“inexhaustible”.Mostofthecitizensofearliergenerationsknewlittleornothingaboutthecomplicatedanddelicatesystemthatrunsallthroughnature,andwhichmeansthat,asinalivingbody,anunhealthyconditionofonepartwillsoonerorlaterbeharmfultoalltheothers.Fiftyyearsagonaturestudywasnotpartoftheschoolwork;scientificforestrywasanewidea;timberwasstillcheapbecauseitcouldbebroughtinanyquantityfromdistantwoodlands;soildestructionandriverfloodswerenotnationalproblems;免费？宅在家学英语？怎么报名？nobodyhadyetstudiedlong-termclimaticcyclesinrelationtoproperlanduse;eventheword“conservation”hadnothingofthemeaningthatithasforustoday.Forthesakeofourselvesandthosewhowillcomeafterus,wemustnowsetaboutrepairingthemistakesofourforefathers.Conservationshould,therefore,bemadeapartofeveryone'sdailylife.Toknowaboutthewatertable(水位)inthegroundisjustasimportanttousasaknowledgeofthebasicarithmeticformulas.Weneedtoknowwhyallwatersheds(上游源头森林地带集水区)needtheprotectionofplantlifeandwhytherunningcurrentofstreamsandriversmustbemadetoyieldtheirfullbenefittothesoilbeforetheyfinallyescapetothesea.Weneedtobetaughtthedutyofplantingtreesaswellasofcuttingthem.Weneedtoknowtheimportanceofbig,maturetrees,becauseli