问题 选择题

下列叙述正确的是(  )

A.河水经过滤净化就变成了纯净物

B.澄清的河水一定可以直接饮用

C.自来水的经过滤、消毒杀菌后的饮用水,可以放心地直接饮用

D.长期饮用纯净水对身体健康不一定有益

答案

A、河水经过过滤处理后,得到的水含有水、可溶性钙镁化合物等物质,属于混合物,故A错误.

B、澄清的河水中可能含有对人体有害的物质,不能直接饮用,故B错误;

C、自来水的经过滤、消毒杀菌后的饮用水,要煮沸后饮用,故C错误;

D、纯净水中缺少对人体有益的微量元素和无机矿物质,所以长期饮用纯净水对身体健康不一定有益,故D正确.

故选D.

阅读理解

阅读理解。

     In bringing up children, every parent watches eagerly the child's acquisition of each new

skill-the first spoken words, the first independent steps, or the beginning of reading and writing.

It is often tempting to hurry the child beyond his natural learning rate, but this can set up

dangerous feelings of failure and states of worry in the child. This might happen at any stage.

A baby might be forced to use a toilet too early, a young child might be encouraged to learn

to read before he knows the meaning of the words he reads. On the other hand, though, if a

child is left alone too much, or without any learning opportunities, he loses his natural enthusiasm

for life and his desire to find out new things for himself.

     Parents vary greatly in their degree of strictness towards their children. Some may be

especially strict in money matters, others are severe over times of coming home at night or

punctuality for meals. In general, the controls imposed represent the needs of the parents and

the values of the community as much as the child's own happiness.

     As regards the development of moral standards in the growing child, consistency is very

important in parental teaching. To forbid a thing one day and excuse it the next is no foundation

for morality (道德). Also, parents should realize that "example is better than precept". If they

are not sincere and do not practice what they preach (说教),their children may grow confused

and emotionally insecure when they grow old enough to think for themselves, and realize they

have been to some extent fooled.

     A sudden awareness of a marked difference between their parents' principles and their

morals can be a dangerous disappointment.

1. Eagerly watching the child's acquisition of new skills         .

A. should be avoided

B. is universal among parents

C. sets up dangerous states of worry in the child

D. will make him lose interest in learning new things

2. In the process of children's learning new skills parents          .

A. should encourage them to read before they know the meaning of the words they read

B. should not expect too much of them

C. should achieve a balance between pushing them too hard and leaving them on their own

D. should create as many learning opportunities as possible

3. The second paragraph mainly tells us that         .

A. parents should be strict with their children

B. parental controls reflect only the needs of the parents and the values of the community

C. parental restrictions vary, and are not always enforced for the benefit of the children alone

D. parents vary in their strictness towards their children according to the situation.

4. The underlined word"precept" in Para.3 probably means"         "

A. idea    

B. punishment        

C. behaviour        

D. instruction

5. In moral matters, parents should         .

A. observe the rules themselves

B. be aware of the marked difference between adults and children

C. forbid things which have no foundation in morality

D. consistently ensure the security of their children

选择题

(13分)阅读下列材料:

材料一 从第一枚探空火箭升空到2001年,中国成功研制了12种不同型号的“长征”系列运载火箭,把70多颗国内外卫星送入太空。2003年10月15日,“神舟五号”飞船载着宇航员杨利伟升上了太空,经过21小时的飞行后,成功地回到地面。2005年10月12日上午9点整,中国自主研制的“神舟六号”载人飞船,在酒泉卫星发射中心用“长征二号F”运载火箭发射成功。飞船升空十多分钟后准确进入预定轨道,顺利将航天员费俊龙、聂海胜送上太空。10月17日凌晨4时33分返回舱成功降落。

(1)中国在航天技术方面取得巨大成就的原因有哪些?“神舟五号”“神舟六号”载人飞船的成功发射和顺利返回有何意义?(5分)

材料二 在多部门的通力协作、共同努力下,北京时间2007年10月24日18点05分我国自主研制的第一个月球探测器——“嫦娥一号”卫星在西昌卫星发射中心顺利升空(见右图)。经过工作人员控制下的多次变轨,11月7号早晨,正式进入200公里绕月轨道,开始了一年的探测工作历程。“嫦娥一号”探月工程是中国对遥远月球展开探测的第一步,也是中国航天走向深空的第一步。有人说,“嫦娥探月”的意义实际已远远超出了工程本身,具有深远影响。

(2)“嫦娥一号”卫星顺利升空,中国几千年登月的梦想变成了美丽的现实。试分析中国开展首次绕月探测的重大意义。(3分)

材料三 新中国成立50多年来,经过几代人艰苦卓绝的持续奋斗,我国科技事业取得了令人鼓舞的巨大成就。到2020年,我国科学技术发展的总体目标是:自主创新能力显著增强,科技促进经济社会发展和保障园家安全的能力显著增强,为全面建设小康社会提供强有力的支撑;基础科学和前沿技术研究综合实力显著增强,取得一批在世界具有重大影响的科学技术成果,进入创新型国家行列,为在本世纪中叶成为世界科技强国奠定基础。

——国家中长期科学和技术发展规划纲要(2006--2020年)

(3)建国50多年来我国取得的重大科技成就有哪些?结合材料三归纳科技创新对社会发展的重大影响。(3分)

材料四 深化科技管理体制改革,优化科技资源配置,完善鼓励技术创新和科技成果产业化的法制保障、政策体系、激励机制、市场环境。实施知识产权战略。充分利用国际科技资源。进一步营造鼓励创新的环境,努力造就世界一流科学家和科技领军人才,注重培养一线的创新人才,使全社会创新智慧竞相迸发、各方面创新人才大量涌现。

——胡 * * 在党的十七大上的报告

(4)胡 * * 在中共十七大上进一步强调以科技创新为主要内容的科学发展观。为此,我们必须坚持怎样的发展战略?(2分)