题目列表(包括答案和解析)

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67.We can hardly stand still after turning around a lot with our eyes closed because     .

    A.our limbs have some difficulty in keeping balance

    B.our central nerves are disturbed

    C.the liquid inside our inner ear will go on turning after our body stops moving

    D.our eyes determine if we can stand still

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66.The underlined word“meander”means     .

    A.to follow a winding course   B.to move aimlessly

    C.to walk straight        D.to adjust directions

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65.The experiment held in Japan indicates that     .

    A.healthy men have a better sense of direction

    B.none of the participants finished the 60 metres

    C.the red footbrints left by the participants were difficult to follow

    D.all the participants walked in a winding rather than a straight line

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75. The writer implies that Internet is_______.

  A. not popular with all over the world      B. very useful

  C. criticized by some experts              D. used in impoverished

Key: 72-75 CDAB

(C)

Can we walk out a straight line? The question is much more difficult to answer than you think. Believe it or not, your eyes and ears help you to walk!

A recent experiment held in Japan shows that it is almost impossible for people to walk exactly straight for 60 metres. Tokyo University of Agriculture and Technology found 20 healthy men and asked them to walk as straight as possible to a target 60 metres away at normal speed. Each man had to wear socks soaked with red ink and walk on white paper fixed flat to the floor. The footprints revealed that all walked in a winding rather than a straight line. Researchers found that people readjust the direction of walking at regular intervals. The amount of the meandering differed from subject to subject. This suggests that none of us can walk in a strictly straight line. Rather, we meander, primarily due to a slight structural or functional imbalance of our limbs(四肢). Our body is actually semicircular, so steps by the left and right leg of a person are different. As a result, although we may start walking in a straight line, several steps afterwards we have changed direction.

Eyesight helps us to correct the direction of walking and leads us to the target. Your ears also help you walk. After turning around a lot with your eyes closed, you can hardly stand still, let alone walk straight. It’s all because your ears help you balance. Inside your inner ear there is a structure contains liquids. On the sides of the organ are many tiny hair-like structures that move around as the liquid flows. When you spin(旋转)the liquid inside also spins. The difference is that when you stop, the liquid continues to spin for a while. Dizziness(眩晕)is the result of these nerves in your ear. When you open your eyes, although your eyesight tells you to walk in a straight line, your brain will trust your ears more, thus you walk in a curved line, or a spiral!

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74. It seems that now a country's economy depends much on_______.

  A. how well-developed it is electronically

  B. whether it is prejudiced against immigrants

  C. whether it adopts America's industrial pattern

  D. how much control it has over foreign corporations

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73. The writer mentioned the case of the United States to justify the policy of ____________.

  A. providing financial support overseas

  B. preventing foreign capital's control

  C. building industrial infrastructure

  D. accepting foreign investment

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72. Digital divide is something _______.

A. getting worse because of the Internet

  B. the rich countries are responsible for

  C. the world must guard against

  D. considered positive today

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63.The experiments made by the scientist was based on _______.

A.special methods                        B.scientific theories

C.personal interests                        D.systematic observations

Key: 60.A   61.C   62.B   63.D

(B)

A great deal of attention is being paid today to the so called divide--the division of the world into the info (information) rich and the info poor. And that divide does exist today: My wife and I lectured about this looming danger twenty years ago. What was less visible then, however were the new, positive forces that work against the digital divide. These are reasons to be optimistic.

  There are technological reasons to hope the digital divide will narrow.  As the Internet becomes more and more commercialized, it is in the internet of business to universalize access-after all, the more people online, the more potential customers there are. More and more governments, afraid their countries will be left behind, want to spread Internet access. Within the next decade or two, one to two billion people on the planet will be netted together.  As a result, I now believe the digital divide will narrow rather than widen in the years ahead, and that is very good news because the Internet may be more powerful tool for combating world poverty that we've ever had.

  Of course, the use of the Internet isn't the only way to defeat poverty.  And the Internet is not the only tool we have. But it has great potential.

  To take advantage of this tool, some-impoverished countries will have to get over their outdated anti-colonial prejudices with respect to foreign investment. Countries that still think foreign investment is an invasion their sovereignty (主权) might well study the history of infrastructure (the basic structural foundations of a society) in the United States. When the United States built its industrial infrastructure, it didn't have the capital to do so. And that is why America's Second Wave infrastructure-including roads, harbors, highways, ports and so on--were built with foreign investment. The English, the Germans, the Dutch French were investing in Britain's former colony. They finished them. Immigrant Americans built them. Guess who owns them now? The Americans. I believe the same thing would be true in places like Brazil or anywhere else for that matter The more foreign capital you have helping you build your Third Wave infrastructure, which today is an electronic infrastructure, the better off you're going to be. That doesn't mean lying down and becoming fooled, or letting foreign corporations run uncontrolled. But it does mean recognizing how important they can be in building the energy and telecom structures needed to take full advantage of the Internet.

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62.The underlined word "good" probably means________.

A.co-operating       B.efficient          C.hardworking       D.responsible

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61.It is observed that slightly larger ants perform more of the ________.

A.construction tasks                    B.defensive work

C.household tasks                      D.dangerous work

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