问题 阅读理解

E

Edwin Powell Hubble was born in 1889 in Marshfield , Missouri . He spent his early years in the state of Kentucky . Then he moved with his family to Chicago , Illinois . He attended the University of Chicago . He studied mathematics and astronomy .

He was a member of the University of Chicago championship basketball team in 1909 . He was also an excellent boxer . Several people urged him to train for the world heavyweight boxing championship after college . Instead , he decided to continue his studies . He went to Queen’s College at Oxford , England . At Oxford , Hubble studied law . He was interested in British Common Law , because his family had come to America from England many years before . He spent 7 years at Oxford .

In 1913 , Hubble returned to the United States . He opened a law office in Louisville , Kentucky . After a short time , however , he decided he did not want to be a lawyer . He returned to the University of Chicago . There , once again , he studied astronomy .

Hubble watched the night sky with instruments at the university’s Yerkes Observatory . His research involved a major question astronomers could not answer : What are nebulae(星云)?

In his research paper , Hubble said the issue could be decided only by more powerful instruments . And those instruments had not yet been developed .

Soon after , Hubble bagan working with a larger and more powerful telescope at Mount Wilson . Its mirror was 250 centimeters across . It was the most powerful telescope in the world for 25 years .It had the power Hubble needed to make his major discoveries .

From 1922 on , Edwin Hubble began examining more and more distant objects . His first great discovery was made when he recognized a Cepheid variable star . It was in the outer area of the great nebula called Andromeda . Cepheid variable stars are stars whose brightness changes at regular periods .

Hubble’s discovery ended a long dispute . He proved wrong those who believed nebulae lay inside the Millky Way . And he proved that nebulae were galaxies themselves . Astronomers now agree that far distant galaxies do exist .

72. Why did Hubble close his law office ?

A. Because it could not bring him fortune .

B. Because he was tired of office work .

C. Because he wanted to be devoted to astronomy .

D. Because he couldn’t control himself sometimes .

73. The larger and more powerful telescope at Mount Wilson_______.

A. belonged to the state of Kentucky

B. was once the most powerful

C. cost Hubble all his money

D. was of little help to Hubble’s research

74. Which of the following statements is NOT true about Edwin Powell Hubble ?

A. He studied law for three years at Oxford , England .

B. He corrected people’s wrong idea about nebulae .

C. He made some important discoveries at Mount Wilson .

D. He showed little interest in sports while studying astronomy at college .

75. Cepheid variable stars’ brightness can be described as__________.

A. changeable       B. fixed          C. weak           D. colorful

答案

72---75   CBDA

问答题

材料1:经济和社会发展中也存在一些突出问题:一是产业结构不合理,地区发展不协调,城镇化水平低,国民经济整体素质不高,国际竞争力不强;二是科技、教育比较落后,科技创新能力弱,人才资源不足;三是水、石油等重要资源短缺,部分地区生态环境恶化;叫是社会主义市场经济体制尚不完善,阻碍生产力发展的体制性因素仍然突出;五是人口压力大,就业矛盾尖锐,农民和城镇部分居民收人增长缓慢,收入差距拉大;六是一些领域市场经济秩序相当混乱,贪污腐败、奢侈浪费现象和形式主义、官僚主义作风还比较严重,有些地方社会治安状况不好等。对此,必须保持清醒的认识,认真解决。
——《中华人民共和国国民经济和社会发展第十个五年计划纲要》
材料2:坚持把结构调整作为主线。我国经济已经到了不调整就不能发展的时候。按原有结构和粗放增长方式发展经济,不仅产品没有市场.资源、环境也难以承受。必须在发展中调整结构,在结构调整中保持较快发展。今后五年要着力调整产业结构、地区结构和城乡结构,特刖要把产业结构调整作为关键。要巩固和加强农业基础地位,加快工业改组改造和结构优化升级,大力发展服务业,加快国民经济和社会信息化,继续加强基础设施建设。
——朱 * * :《关于国民经济和社会发展第十个五年计划纲要的报告》
材料3:经济结构调整的主要预期目标是:产业结构优化升级,国际竞争力增强。2005年第一、二、三产业增加值占国内生产总值的比重分别为13%、51%和36%,从业人员占全社会从业人员的比重分别为44%、23%和33%。国民经济和社会信息化水平显著提高。基础设施进一步完善。地区间发展差距扩大的趋势得到有效控制。城镇化水平有所提高。
要坚持以市场为导向,以企业为主体,以技术进步为支撑,突出重点,有进有退,努力提高我国工业的整体素质和国际竞争力。工业改组改造要遵循市场经济规律,正确引导投资方向,依靠现有基础,防止盲目扩大规模和重复建设。坚持引进技术与自主创新相结合,先进技术与适用技术相结合。重点强化对传统产业的改造升级,进一步发挥劳动密集型产业的比较优势。积极发展高新技术产业和新兴产业,形成新的比较优势。以信息化带动工业化,发挥后发优势,实现社会生产力的跨越式发展。
——《中华人民共和国国民经济和社会发展第十个五年计划纲要》
根据上面资料,回答下列问题:
1.当前,我国经济结构上存在着哪些突出问题

多项选择题