Part II Reading Comprehension (20 points, 2 points each) Directions:There are 4 passages in this part. Each passage is followed by some questionsor unfinished statements. For each of them there are four choices marked A, B , C and D. You should decide on the best choiceand mark the corresponding letter on the Answer Sheet with a single linethrough the centre. Passage 1 The human braincontains 10 thousand million cells and each of these may have a thousandconnections. Such enormous numbers used to discourage us and cause us todismiss the possibility of making a machine with humanlike ability, but nowthat we have grown used to moving forward at such a pace we can be less sure.Quite soon, in only 10 or 20 years perhaps, we will be able to assemble amachine as complex as the human brain, and if we can we will. It may then takeus a long time to render it intelligent by loading in the right software ( 软件 ) or by altering the architecturebut that too will happen. I think it certain that in decades, notcenturies, machines of silicon ( 硅 ) will arise first to rival and then exceed their human ancestors. Once they exceed usthey will be capable of their own design. In a real sense they will be able toreproduce themselves. Silicon will have ended carbon's long control. And we willno longer be able to claim ourselves to be the finest intelligence in the knownuniverse. As the intelligence of robots increasesto match that of humans and as their cost declines through economies of scalewe may use them to expand our frontiers, first on earth through their abilityto withstand environments, harmful to ourselves. Thus, deserts may bloom andthe ocean beds be mined. Further ahead, by a combination of the great wealththis new age will bring and the technology it will provide, the construction ofa vast, man-created world in space, home to thousands or millions of people,will be within our power. 21. In what way can we make a machine intelligent? A. By making it work in such environments as deserts, oceans or space. B. By working hard for 10 or 20 years. C. By either properly programming it or changing its structure. D. By reproducing it. 22. What does the writer think about machines with human-like ability? A. He believes they will be useful to human beings. B. He believes that they will control us in the future. C. He is not quite sure in what way they may influence us. D. He doesn't consider the construction of such machines possible. 23. The word carbon ( Line 4, Para. 2) stands for" _______" A. intelligent robots B. a chemical element C. an organic substance D. humanbeings 24. A robot can be used to expand our frontiers when _______. A. its intelligence and cost are beyond question B. it is able to bear the rough environment C. it is made as complex as the human brain D. its architecture is different from that of the present ones 25. It can be inferred from the passage that _______. A. after the installation of a great number of cells and connections, robotswill be capable of self-reproduction. B. with the rapid development of technology, people have come to realize thepossibility of making a machine with human-like ability. C. once we make a machine as complex as the human brain, it will possess intelligence D. robots will have control of the vast, man-made world in space. Passage 2 Do you find getting up in the morning sodifficult that it is painful? This might be called laziness, but Dr. Kleitmanhas a new explanation. He has proved that everyone has a daily energy cycle. During the hours when you labor throughyour work you may say that you’re “hot”. That’s true. The time of day when youfeel most energetic is when your cycle of body temperature is at its peak. Forsome people the peak comes during the forenoon. For others it comes in theafternoon or evening. No one has discovered why this is so, but it leads tosuch familiar monologues( 自言自语 ): “ Get up, Jone! You ’ ll be late for work again! ” The possible explanation to the trouble isthat John is at his temperature-and-energy peak in the evening. Much family quarrelingends when husbands and wives realize what these energy cycles mean, and whichcycle each member of the family has. You can ’ tchange your energy cycle, but you can learn to make your life fit it better.Habit can help, Dr. Kleitman believes. Maybe you ’ resleepy in the evening but feel you must stay up late anyway. Counteract( 对抗 ) your cycle to some extent by habituallystaying up later than you want to. If your energy is low in the morning but youhave an important job to do early in the day, rise before your usual hour. Thiswon't change your cycle, but you ’ llget up steam( 鼓足干劲 ) and work better at your lowpoint. Get off to a slow start which saves yourenergy. Get up with a leisurely yawn and stretch. Sit on the edge of the bed aminute before putting your feet on the floor. Avoid the troublesome search forclean clothes by laying them out the night before. Whenever possible, doroutine work in the afternoon and save tasks requiring more energy ofconcentration for our sharper hour. 26.If aperson finds getting up early a problem, most probably_______. A. he isa lazy person B. herefused to follow his own energy cycle C. he isnot sure when his energy is low D. he isat his peak in the afternoon or evening 27.Whichof the following may lead to family quarrels according to the passage? A.Unawareness of energy cycles B. Familymonologues C. Achange in the family member’s energy cycles D.Attempt to control the energy cycle of family members. 28.If onewants to work more efficiently at his low point in the morning, he should_____. A. changehis energy cycle B.overcome his laziness C. get upearlier than usual D. go tobed early 29.Youare advised to rise with a yawn and stretch because it will _______. A. helpto keep your energy for the day’s work B. helpyou to control your temper early in the day C. enableyou to concentrate on your routine work D. keepyour energy cycle under control all day 30.Whichof the following statements is NOT TRUE? A.Getting off to work with a minimum effort helps save one’s energy. B. Dr.Kleitman explains why people reach their peaks at different hours of a day. C. Habithelps a person adapt to his own energy cycle. D.Children have energy cycles, too.