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        08職稱(chēng)英語(yǔ)考前每日一練(理工類(lèi)第28期-C級(jí))

        字號(hào):

        第6部分:完形填空(第51~65題,每題1分,共15分)
            下面的短文有15處空白,請(qǐng)根據(jù)短文內(nèi)容為每處空白確定1個(gè)選項(xiàng)。
             An Intelligent Car
            Driving needs sharp eyes,keen ears,quick brain,and coordination(協(xié)調(diào))between hands and the brain.Many human drivers have all(51)and can control a fast-moving car.But how does an intelligent car control itself?
            There is a virtual(虛擬的)driver in the smart car.This virtual driver has"eyes,""brains,""hands"and"feet,"too.The minicameras(52)each side of the car are his"eyes,"which(53)the road conditions ahead of it.They watch the(54)to the car's left and right.There is also a highly automatic driving(55)in the car.It is the built-in computer,which is the virtual driver's"brain."His"brain"(56)the speeds of other moving cars near it and analyzes their positions.Basing on this information,it chooses the(57)path for the intelligent car,and gives instructions to the "hands"and"feet"to act accordingly.In this way,the virtual driver(58)his car.
            What is the virtual driver's best advantage?He reacts(59).The minicameras are bringing(60)continuously to the "brain."It completes the processing of the images within 100 milliseconds.(61),the world's best driver needs at least one second to react.Besides,when he takes(62),he needs one more second.
            The virtual driver is really wonderful.He can reduce the accident(63)considerably on expressways(高速公路).In this(64),can we let him have the wheel at any time and in any place?Experts(65)that we cannot do that just yet.His ability to recognize things is still limited.He can now only drive an intelligent car on expressways.
            51.A.these B.them C.this D.that
            52.A.in B.above C.to D.on
            53.A.change B.observe C.improve D.meet
            54.A.police B.traffic C.pets D.trees
            55.A.button B.door C.system D.activity
            56.A.calculates B.reaches C.gathers D.reduces
            57.A.different B.narrow C.same D.right
            58.A.stops B.finds C.controls D.selects
            59.A.quickly B.cleverly C.virtually D.safely
            60.A.ideas B.news C.memory D.images
            61.A.so B.However C.Besides D.Therefore
            62.A.action B.role C.decision D.notice
            63.A.investigation B.prevention C.rate D.report
            64.A.case B.method C.manner D.file
            65.A.expose B.warn C.hope D.wish
            答案:
            51.A  52.D  53.B  54.B  55.C
            56.A  57.D  58.C  59.A  60.D
            61.B  62.A  63.C  64.A  65.B