焊缝的强度可以达到母材,但塑性、韧性比母材强。

1、正确
2、错误
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They’dlike____thankthefollowingpeople_____theirhelpandsupport.

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C、to;for
D、for;to

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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

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