题目内容
Memory Test
1. "I am going to give you five techniques that will enable you to remember anything you need to know at school, " promised lecturer an Robinson to a hundred school children. He slapped his hand down on the table. "When I&39;ve finished in two hours&39;time, your work will be far more effective and productive. Anyone not interested, leave now." The entire room sat still.
2. Robinson calls himself the Mind Magician (魔术师 ) .He specializes in doing magic tricks that look totally impossible, and then he reveals that they involve nothing more mysterious than good old-fashioned trickery (骗术 ) . "l have always been interested in tricks involving memory being able to reel off (一口气说出) the order of cards in a pack, that sort of thing." he explains.
3. Robinson was already lecturing to schools on his magic techniques when it struck him that students might find memory techniques even more valuable. "It wasn&39;t difficult area to move into, as the stuff&39;s all there in books." So he summarized everything to make a two-hour lecture about five techniques.
4. "You want to learn a list of a hundred things？ A thousand？ No problem, " says Robinson. The scandal is that every child is not taught the techniques from the beginning of their school life. The schoolchildren who were watching him thought it was brilliant. "I wish I&39;d been told this earlier, " commented Mark, after Robinson had shown them how to construct "mental journeys" .
5. Essentially, you visualize (想象) a walk down a street, or a trip round a room, and pick the points where you will put the things you want to remember the lamppost, the fruit bowl. Then in each location you put a visual representation of your list-phrasal verbs, historical dates, whatever making them as strange as possible.It is that simple, and it works.
6. The reaction of schools has been uniformly enthusiastic. "The pupils benefited enormously from his presentation, " says Dr. Johnston, head of the school where Robinson was speaking. "ideally we should run a regular class in memory techniques so pupils can pick it up gradually."
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在M＞4时，MQAM与MPSK哪一种抗噪性能更好？
12. A. In three years B. For three years C. After three years D. Three years
13. A. never would be B. would be never C. would not be ever D. would never be
14. A. I didn't either B. Nor I did C. So didn't I D. Also didn't I
15. A. Not al1 B. Neither C. Nor D. Both
16. A. since B. while C. before D. whereas
17. A. understand B. recognize C. suggest D. inform
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B 降っているとすると
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D 降ることがないのに
Unpredictable Earthquake
Humans are forever forgetting that they can&39;t control nature. Exactly 20 years ago, a Time magazine cover story announced that "scientists are on the verge of being able to predict the time, place and even the size of earthquakes." The people of quake-ravaged (被地震破坏的) Kobe learned last week how wrong that assertion was.
None of the methods conceived two decades ago has yet to discover a uniform. wanting signal that preceded all quakes, let alone any sign that would tell whether the coming temblor (地震) is mild or a killer.Earthquake formation can be triggered by many factors, says Hiroo Kanamori, a seismologist (地震学家), at the California Institute of Technology. So, finding one all-purpose warning sign is impossible. One reason :Quakes tart deep in the earth, so scientists can&39;t study them directly. If a quake precursor were found, it would still be impossible to ward humans in advance of all dangerous quakes.Places like Japan and California are fiddle with hundreds, if not thousands, of minor faults.
Prediction would be less important if scientists could easily build structures to withstand tremors. While seismic engineering has improved dramatically in the past 10 to 15 years, every new quake reveals unexpected weakness in "quake-resistant" structures, says Terry Tullis, a geophysicist at Brown University. In Kobe, for example, a highway that opened only last year was damaged. In the Northridgeearthquake, on the other hand,well-built structures generally did not collapse.
A recent report in Science adds yet more anxiety about life on the faulty lines. Researchers Fan computer simulations to see how quake resistant buildings would fall in a moderate size temblor, taking into account that much of a quake&39;s energy travels in a large "pulse" of focused shaking. The results: both steel-frame. buildings
and buildings that sit on insulating rubber pads suffered severe damage.
More research will help experts design stronger structures and possibly find quake precursors. But it is still a certainty that the next earthquake will prove once again that every fault cannot be monitored and every highway cannot be completely quake-proofed.
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