Passage4

Questions 16to 20arebasedonthefollowingpassage:

Morethan30,000driversandfrontseatpassengersarekilledorseriouslyinjuredeachyear.Atthespeedofonly30milesperhouritisthesameasfallingfromathird-floorwindows.Wearingaseatbeltsaveslives;itreducesyourchanceofdeathorseriousinjurybymorethanhalf.

Thereforedriversorfrontseatpassengersover14inmostvehiclesmustwearaseatbelt.Ifyoudonot,youcouldbefinedupto￡50.itwillnotbeuptothedriverstomakesureyouwearyourbelt.Butitwillbethedriver’sresponsibilitytomakesurethatchildrenunder14donotrideinthefrontunlesstheyarewearingaseatbeltofsomekind.

However,youdonothavetowearaseatbeltifyoureversingyourvehicle;oryouaremakingalocaldeliveryorcollectionusingaspecialvehicle;orifyouhaveavalidmedicalcertificatewhichexcusesyoufromwearingit.Makesurethesecircumstancesapplytoyoubeforeyoudecidenottowearyouseatbelt.(76)Rememberyoumaybetakentocourtfornotdoingso,andyoumaybefinedifyoucannotprovetothecourtthatyouhavebeenexcusedfromwearingit.

1.Thistextistakenfrom________.

A)amedicalmagazineB)apolicereport

C)alegaldocumentD)agovernmentinformationbooklet

2.Wearingaseatbeltinavehicle________.

A)reducesroadaccidentsbymorethanhalf

B)savesliveswhiledrivingataspeedupto30milesperhour

C)reducesthedeathrateintrafficaccidentsD)savesmorethan15,000liveseachyear

3.Itisthedriver’sresponsibilityto________.

A)makethefrontseatpassengerwearaseatbelt

B)makethefrontseatchildrenunder14wearaseatbelt

C)stopchildrenridinginthefrontseatD)wearaseatbelteachtimehedrives

4.Accordingtothetext,whichofthefollowingpeopleridinginthefrontdosnothavetowearaseatbelt?

A)Someonewhoisbackingintoaparkingspace.

B)Someonewhoispickingupthechildrenfromthelocalschool.

C)Someonewhoisdeliveringinvitationletters.

D)Someonewhoisunder14.

5.Forsomepeople,itmaybebetter________.

A)towearaseatbeltforhealthreasons

B)nottowearaseatbeltforhealthreasons

C)togetvalidmedicalcertificatebeforewearingaseatbelt

D)topayafineratherthanwearaseatbelt

Nowhereinnatureisaluminumfoundfree,owingtoitsalways____withotherelements,mostcommonlywithoxygen.

The____ofAIDShasledtoanexpansioninresearchseekingacure.

Passage2

Questions6to10arebasedonthefollowingpassage:

Thehumanbraincontains10thousandmillioncellsandeachofthesemayhaveathousandconnections.(77)Suchenormousnumbersusedtodiscourageusandcauseustodismissthepossibilityofmakingamachinewithhuman-likeability,butnowthatwehavegrownusedtomovingforwardatsuchapacewecanbelesssure.Quitesoon,inonly10or20yearsperhaps,wewillbeabletoassembleamachineascomplexasthehumanbrain,andifwecanwewill.Itmaythentakeusalongtimetorenderitintelligentbyloadingintherightsoftware(软件)orbyalteringthearchitecturebutthattoowillhappen.

(78)Ithinkitcertainthatindecades,notcenturies,machinesofsilicon(硅)willarisefirsttorivalandthenexceedtheirhumanancestors.Oncetheyexceedustheywillbecapableoftheirowndesign.Inarealsensetheywillbeabletoreproducethemselves.Siliconwillhaveendedcarbon’slongcontrol.Andwewillnolongerbeabletoclaimourselvestobethefinestintelligenceintheknownuniverse.

Astheintelligenceofrobotsincreasestomatchthatofhumansandastheircostdeclinesthrougheconomiesofscalewemayusethemtoexpandourfrontiers,firstonearththroughtheirabilitytowithstandenvironments,harmfultoourselves.Thus,desertsmaybloomandtheoceanbedsbemined.Furtherahead,byacombinationofthegreatwealththisnewagewillbringandthetechnologyitwillprovide,theconstructionofavast,man-createdworldinspace,hometothousandsormillionsofpeople,willbewithinourpower.

6.Inwhatwaycanwemakeamachineintelligent?

A)Bymakingitworkinsuchenvironmentsasdeserts,oceansorspace.

B)Byworkinghardfor10or20years.

C)Byeitherproperlyprogrammingitorchangingitsstructure.

D)Byreproducingit.(C)

7.Whatdoesthewriterthinkaboutmachineswithhuman-likeability?

A)Hebelievestheywillbeusefultohumanbeings.

B)Hebelievesthattheywillcontrolusinthefuture.

C)Heisnotquitesureinwhatwaytheymayinfluenceus.

D)Hedoesn’tconsidertheconstructionofsuchmachinespossible.

8.Theword“carbon”(Line4,Para.2)standsfor________.

A)intelligentrobotsB)achemicalelementC)anorganicsubstanceD)humanbeings(D)

9.Arobotcanbeusedtoexpandourfrontierswhen________.

A)itsintelligenceandcostarebeyondquestion

B)itisabletobeartheroughenvironment

C)itismadeascomplexasthehumanbrain

D)itsarchitectureisdifferentfromthatofthepresentones(A)

10.Itcanbeinferredfromthepassagethat________.

A)aftertheinstallationofagreatnumberofcellsandconnections,robotswillbecapableofself-reproduction

B)withtherapiddevelopmentoftechnology,peoplehavecometorealizethepossibilityofmakingamachinewithhuman-likeability

C)oncewemakeamachineascomplexasthehumanbrain,itwillpossesintelligence

D)robotswillhavecontrolofthevast,man-madeworldinspace

Thefirststepinthestudyofanylanguageisobservingand____preciselywhathappenswhennativespeakersspeakit.