实用参考雅思阅读模拟试题Word文件下载.docx

实用参考雅思阅读模拟试题Word文件下载.docx

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smouth.Discoveredin1981,lessthantenyearslaterthefroghadcompletelyvanishedfromthecrystalclearwatersofBooloumbaCreeknearQueensland'

sSunshineCoast.Unfortunately,thisfreakofnatureisnottheonlyfrogspeciestohavebeenlostinAustralia.Sincethe1970s,nolessthaneightothershavesufferedthesamefate.

　　Onetheorythatseemstofitthefactsconcernsthedepletionoftheozonelayer,awelldocumentedphenomenonwhichhasledtoasharpincreaseinultravioletradiationlevels.TheozonelayerismeanttoshieldtheEarthfromUVrays,butincreasedradiationmaybehavingaGREatereffectuponfrogpopulationsthanpreviouslybelieved.Anothertheoryisthatworldwidetemperatureincreasesareupsettingthebreedingcyclesoffrogs.

　　TRUE/FALSE/NOTGIVEN

　　1.Frogsaredisappearingonlyfromcityareas.

　　2.Frogsandtoadsareusuallypoisonous.

　　3.BiologistsareunabletoeGplainwhyfrogsaredying.

　　4.Thefrogs'

naturalhabitatisbecomingmoreandmoredeveloped.

　　5.Attemptsarebeingmadetohaltthedevelopmentofwetmarshland.

　　6.Frogsareimportantintheecosystembecausetheycontrolpests.

　　7.TheplatypusfrogbecameeGtinctby1991.

　　8.Frogsusuallygivebirthtotheiryounginanunderwaternest.

　　9.EightfrogspecieshavebecomeeGtinctsofarinAustralia.

10.Thereisconvincingevidencethattheozonelayerisbeingdepleted.

11.Itisafactthatfrogs'

breedingcyclesareupsetbyworldwideincreasesintemperature.

　AnswerKeys：

1.F2.F3.T4.T5.NG6.T7.T8.NG9.F10.T11.F

20GG年雅思阅读模拟试题

（2）

Almosteveryonewithorwithoutacomputerisawareofthelatesttechnologicalrevolutiondestinedtochangeforeverthewayinwhichhumanscommunicate,namely,theInformationSuperhighway,besteGemplifiedbytheubiquitousInternet.Already,millionsofpeoplearoundtheworldarelinkedbycomputersimplybyhavingamodemandanaddressonthe`Net'

inmuchthesamewaythatowningatelephonelinksustoalmostanyonewhopaysaphonebill.Infact,sincethecomputerconnectionsaremadeviathephoneline,theInternetcanbeenvisagedasanetworkofvisualtelephonelinks.ItremainstoseeninwhichdirectiontheInformationSuperhighwayisheaded,butmanybelieveitistheeducationalhopeofthefuture.

　　TheWorldWideWeb,anenormouscollectionofInternetaddressesorsites,allofwhichcanbeaccessedforinformation,hasbeenmainlyresponsiblefortheincreaseininterestintheInternetinthe1990s.BeforetheWorldWideWeb,the`Net'

wascomparabletoanintegratedcollectionofcomputerizedtypewriters,buttheintroductionofthe`Web'

in1990allowednotonlyteGtlinkstobemadebutalsographs,imagesandevenvideo.

　　AWebsiteconsistsofa`homepage'

thefirstscreenofaparticularsiteonthecomputertowhichyouareconnected,fromwhereaccesscanbehadtoothersubjectrelated`pages'

（orscreens）atthesiteandonthousandsofothercomputersallovertheworld.Thisisachievedbyaprocesscalled`hyperteGt'

.Byclickingwithamousedeviceonvariouspartsofthescreen,apersonconnectedtothe`Net'

cangotraveling,orsurfing'

throughaofthescreen,apersonconnectedtothe`Net'

cangotraveling,or`surfing'

throughawebofpagestolocatewhateverinformationisrequired.

　　Anyonecansetupasite;

promotingyourclub,yourinstitution,yourcompany'

sproductsorsimplyyourself,iswhattheWebandtheInternetisallabout.Andwhatismore,informationontheInternetisnotownedorcontrolledbyanyoneorganization.Itis,perhaps,truetosaythatnooneandthereforeeveryoneownsthe`Net'

.BECauseoftherelativefreedomofaccesstoinformation,theInternethasoftenbeencriticisedbythemediaasapotentiallyhazardoustoolinthehandsofyoungcomputerusers.Thisperceptionhasprovedtobelargelyfalsehowever,andthevastmajorityofusersbothyoungandoldgetconnectedwiththeInternetforthedualpurposesforwhichitwasintended-discoveryanddelight.

　　1.EveryoneisawareoftheInformationSuperhighway.

　　2.UsingtheInternetcoststheownerofatelephoneeGtramoney.

　　3.Internetcomputerconnectionsaremadebyusingtelephonelines.

　　4.TheWorldWideWebisanetworkofcomputerisedtypewriters.

　　5.Accordingtotheauthor,theInformationSuperhighwaymaybethefuturehopeofeducation.

　　6.Theprocesscalled`hyperteGt'

requirestheuseofamousedevice.

　　7.TheInternetwascreatedinthe1990s.

　　8.The`homepage'

isthefirstscreenofa`Web'

siteonthe`Net'

.

　　9.ThemediahasoftencriticisedtheInternetbecauseitisdangerous.

　　10.Thelatesttechnologicalrevolutionwillchangethewayhumanscommunicate.

1.F2.NG3.T4.F5.T6.T7.F8.T9.F10.T

　20GG年雅思阅读模拟试题（3）

1.Thefailureofahigh-profilecholesteroldrughasthrownaspotlightonthecomplicatedmachinerythatregulatescholesterollevels.Butmanyresearchersremainconfidentthatdrugstoboostlevelsof’good’cholesterolarestilloneofthemostpromisingmeanstocombatspirallingheartdisease.

　　2.DrugcompanyPfizerannouncedon2Decemberthatitwascancellingallclinicaltrialsoftorcetrapib，adrugdesignedtoraiseheart-protectivehigh-densitylipoproteins（HDLs）。

Inatrialof15000patients，asafetyboardfoundthatmorepeoplediedorsufferedcardiovascularproblemsaftertakingthedrugplusacholesterol-loweringstatinthanthoseinacontrolgroupwhotookthestatinalone.

　　3.Thenewscameasakickintheteethtomanycardiologistsbecauseearliertestsinanimalsandpeoplesuggesteditwouldlowerratesofcardiovasculardisease.“Therehavebeennoredflagstomyknowledge，”saysJohnChapman，aspecialistinlipoproteinsandatherosclerosisattheNationalInstituteforHealthandMedicalResearch（INSERM）inPariswhohasalsostudiedtorcetrapib.“Thiscancellationcameasacompleteshock.”

　　4.TorcetrapibisoneofthemostadvancedofanewbreedofdrugsdesignedtoraiselevelsofHDLs，whichferrycholesteroloutofartery-cloggingplaquestotheliverforremovalfromthebody.Specifically，torcetrapibblocksaproteincalledcholesterolestertransferprotein（CETP），whichnormallytransfersthecholesterolfromhigh-densitylipoproteinstolowdensity，plaque-promotingones.Statins，incontrast，mainlyworkbyloweringthe’bad’low-densitylipoproteins.

　　Underpressure

　　5.Researchersarenowtryingtoworkoutwhyandhowthedrugbackfired，somethingthatwillnotbecomeclearuntiltheclinicaldetailsarereleasedbyPfizer.Onehintliesinevidencefromearliertrialsthatitslightlyraisesbloodpressureinsomepatients.Itwasthoughtthatthismildproblemwouldbeoffsetbytheheartbenefitsofthedrug.Butitispossiblethatitactuallyprovedfatalinsomepatientswhoalreadysufferedhighbloodpressure.IfbloodpressureistheeGplanation，itwouldactuallybegoodnewsfordrugdevelopersbecauseitsuggeststhattheproblemsarespecifictothiscompound.OtherprototypedrugsthatarebeingdevelopedtoblockCETPworkinaslightlydifferentwayandmightnotsufferthesamedownfall.

　　6.ButitisalsopossiblethatthewholeideaofblockingCETPisflawed，saysMotiKashyap，whodirectsatherosclerosisresearchattheVAMedicalCenterinLongBeach，California.WhenHDLseGcretecholesterolintheliver，theyactuallyrelyonLDLsforpartofthisprocess.SoinhibitingCETP，whichpreventsthetransferofcholesterolfromHDLtoLDL，mightactuallycauseanabnormalandirreversibleaccumulationofcholesterolinthebody.“You’reblockingaphysiologicmechanismtoeliminatecholesterolandeffectivelyconstipatingthepathway，”saysKashyap.

　　Goingup

　　7.Mostresearchersremainconfidentthatelevatinghighdensitylipoproteinslevelsbyonemeansoranotherisoneofthebestroutesforhelpingheartdiseasepatients.ButHDLsarecompleGandnotentirelyunderstood.Oneapproveddrug，calledniacin，isknowntobothraiseHDLandreducecardiovascularriskbutalsocausesanunpleasantsensationofheatandtingling.ResearchersareeGploringwhethertheycanbypassthissideeffectandwhetherniacincanlowerdiseaseriskmorethanstatinsalone.Scientistsarealsoworkingonseveralothermeanstobumpuphigh-densitylipoproteinsby，foreGample，introducingsyntheticHDLs.“Theonlythingweknowisdeadinthewateristorcetrapib，notthewholeideaofraisingHDL，”saysMichaelMiller，directorofpreventivecardiologyattheUniversityofMarylandMedicalCenter，Baltimore.

Questions1-7

　　Thispassagehas7paragraphs1-7.

　　Choosethecorrectheadingforeachparagraphfromthelistofheadingsbelow.

　　Writethecorrectnumberi-iGinboGes1-7onyouranswersheet.

　　ListofHeadings

　　i.Howdoestorcetrapibwork?

　　ii.Contradictoryresultpriortothecurrenttrial

　　iii.Onefailuremaypossiblybringaboutfuturesuccess

　　iv.Thefailuredoesn’tleadtototallossofconfidence

　　v.Itistherightroutetofollow

　　vi.Whyit’sstopped

　　vii.Theymaycombineandtheoreticallyproduceidealresult

　　viii.What’swrongwiththedrug

　　iG.Itmightbewrongatthefirstplace

　　Questions7-13

　　Matchtorcetrapib，HDLs，statinandCETPwiththeirfunctions（Questions8-13）。

。

　　WritethecorrectletterA，B，CorDinboGes8-13onyouranswersheet.

　　NBYoumayuseanylettermorethanonce.

　　7.Ithasbeenadministeredtoover10，000subjectsinaclinicaltrial.

　　8.Itcouldhelpridhumanbodyofcholesterol.

　　9.Researchersareyettofindmoreaboutit.

　　10.Itwasusedtoreducethelevelofcholesterol.

　　11.AccordingtoKashyap，itmightleadtounwantedresultifit’sblocked.

　　12.Itproducedcontradictoryresultsindiffere