问题 综合题

“863计划”在实施的前10年问,取得研究成果1200多项,其中达到国际水平的有540多项,国家级567项,获国内外专利244项,创造经济效益两三千亿元人民币。   

(1)“863计划”提出的背景是什么?是由哪四位老科学家提出来的?

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(2)我国为什么要开展高新技术的研究?从中也可以看出这四位老科学家具有怎样的可供我们学习的精神品质?

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(3)我国的“863计划”从哪几个方面展开?

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答案

(1)“863计划”是在世界高技术蓬勃发展、国际竞争日趋激烈的关键时期,邓 * * 根据四位老科学家的建议,亲自批复实施的一项对国家的长远发展具有重要战略意义的国家高技术研究发展计划。这四位老科学家是王大珩、王淦昌、杨嘉墀、陈芳允。

(2)为了迎接全球新技术革命和高技术竞争的挑战,加快我国高技术及其产业的发展。热爱祖国、积极探索、勇于创新、目光长远等。

(3)生物技术、航天技术、信息技术、激光技术、自动化技术、能源技术、新材料和海洋高技术八个方面。

阅读理解

阅读理解。

     Scientists are not sure how the brain follows the tracks of time. One theory holds that it has a group of

cells specialized to record the intervals (间隔)of time, while another theory holds that some neural processes

(神经突)act as an inside clock.

     Whichever theory it may be, studies find, the cells have a poor grasp of longer interval. Time does seem

to slow during an empty afternoon and race when the brain focuses on challenging work. Stimulants (兴奋剂),

including caffeine, tend to make people feel as if time is passing faster; complex jobs, like doing taxes, can

seem to drag on longer than they actually do. And emotional events-a breakup, a promotion, a transformative

trip abroad-tend to be sensed as more recent than they actually are, by months or even years. In short, some

psychologists say, the findings support the philosopher Martin Heidegger's observation that time "persists

merely as a consequence of the events taking place in it."

     Now researchers are finding that the opposite thing may also be true: if very few events come to mind, then

the sense of time does not persist; the brain shortens the interval that has passed.

     In one classic experiment, a French explorer named Michel Diffre lived in a cave for two months, cut off

from the rhythms of night and day and man-made clocks. He appeared then, convinced that he had been

isolated for only 25 days. Left to its own devices, the brain tends to shorten time.

     In earlier work, researchers found that a similar case at work in people's judgment of intervals that last only

moments. Relatively infrequent stimuli, like flashes or tones, tend to increase the speed of the brain' s internal

pacemaker.

     On an obvious level, these kinds of findings offer an explanation for why other people's children seem to

grow up so much faster than one's own. Involved parents are all too well aware of first step in their own

children; however, seeing a cousin's child once every few years, without bothering memories, shortens the

time.

1. What can we infer from the first paragraph?

A. Scientists have agreed about how the brain records time.

B. Scientists all think that some cells record the intervals of time.

C. Scientists haven't agreed on how the brain records time.

D. Scientists all hold the theory that neural processes are an inside clock.

2. According.to Paragraph 3, if we have few things to do, the brain will _____.

A. make the intervals of time long

B. make the intervals of time short

C. keep a state of rest

D. stop working

3. Which of the following is TRUE according to the passage? 

A. Michel Diffre didn't think he had stayed in the cave for as long as two months.

B. Parents tend to think their own children grow faster than others.

C. Michel Diffre actually stayed in the cave for twenty-five days.

D. Children usually bring bad memories to their parents.

4. In which column of a newspaper can we find this passage?

A. Social news

B. Community activities

C. Science

D. Children s life

单项选择题