问题 单项选择题

  当你站在海边,望着一望无际的蔚蓝色海水和一层一层涌向岸边的浪花,是否会有一种舒畅、开阔、生气勃勃的感觉

  俄罗斯生物物理学家阿拉巴特日独辟蹊径,观察研究了这一现象。他注意到,当海水在风力作用下形成海浪时,会产生人耳听不见的频率为8~13赫兹的次声波。该现象早已为人们所知晓。但是阿拉巴特日感兴趣的是,在我们人体内部究竟是什么东西能与来自大海的次声波频率相一致呢当他将注意力转向生物医学资料时。马上发现了自己想找的答案。

  原来,在人的大脑里存在各种不同的生物电流,它们可以通过脑电图记录下来。科学家们对记录下来的脑电波进行了深入的研究和分类。已知的几种生物电流节律无论在频率上还是在强度上都有很大差别,其中一种。节律的频串为8~13赫兹。真是惊人的巧合!也许,海洋次声波能在人的大恼里引起某种共振a节律能使人们表现出正常、镇静和精神泡满的状态。只要人稍激紧张、疲倦,。节律便会减弱。这时大脑中具有其他频率的一些节律就会开始占上风。

  这是否意味着人类大脑中的天然。节律具有某种对大海生活的遗传生理适应性呢或许这种遗传生理适应性正说明了人类远古祖先起源于大海吧。阿拉巴特日认为。人为激发频率为8~13赫兹的次声波完全能使人处于并保持不眠状态。这也许是生理学上又一新课题。

适合做本文标题的一项是()。

A.人类利用大海次声波指日可待

B.人类在海边找到精神饱满的原因

C.奇妙的大海次声波

D.人为激发次声波可以使人不眠但有精神

答案

参考答案:C

多项选择题
阅读理解

第三部分:阅读理解(共13小题;每小题2分,满分26分)

请认真阅读下列短文,从短文后各题所给的A、B、C、D四个选项中,选出最佳选项,并在答题纸上将该项涂黑。

A

America is a mobile society. Friendships between Americans can be close and real, yet disappear soon if situations change. Neither side feels hurt by this. Both may exchange Christmas greetings for a year or two, perhaps a few letters for a while — then no more. If the same two people meet again by chance, even years later, they pick up the friendship. This can be quite difficult for us Chinese to understand, because friendships between us flower more slowly but then may become lifelong feelings, extending (延伸) sometimes deeply into both families.

Americans are ready to receive us foreigners at their homes, share their holidays, and their home life. They will enjoy welcoming us and be pleased if we accept their hospitality (好客) easily.

Another difficult point for us Chinese to understand Americans is that although they include us warmly in their personal everyday lives, they don’t show their politeness to us if it requires a great deal of time. This is usually the opposite of the practice in our country where we may be generous with our time. Sometimes, we, as hosts, will appear at airports even in the middle of the night to meet a friend. We may take days off to act as guides to our foreign friends. The Americans, however, express their welcome usually at homes, but truly can not manage the time to do a great deal with a visitor outside their daily routine. They will probably expect us to get ourselves from the airport to our own hotel by bus. And they expect that we will phone them from there. Once we arrive at their homes, the welcome will be full, warm and real. We will find ourselves treated hospitably.

For the Americans, it is often considered more friendly to invite a friend to their homes than to go to restaurants, except for purely business matters. So accept their hospitality at home!

56. The writer of this passage must be ______.

A. an American      B. a Chinese     C. a professor       D. a student

57. Which of the following statements is TRUE according to the passage?

A. Friendships between Americans usually extend deeply into their families.

B. Friendships between Americans usually last for all their lives.

C. Americans always show their warmth even if they are very busy.

D. Americans will continue their friendships again even after a long break.

58. From the last two paragraphs we can learn that when we arrive in America to visit an American friend, we will probably be ______.

A. warmly welcomed at the airport      B. offered a ride to his home

C. treated hospitably at his home       D. treated to dinner in a restaurant

59. The underlined words  “generous with our time” in Paragraph 3 probably mean ______.

A. strict with time    B. serious with time   C. careful with time   D. willing to spend time

60. A suitable title for this passage would probably be “______”.

A. Friendships between Chinese      B. Friendships between Americans

C. Americans’ hospitality           D. Americans’ and Chinese’s views of friendships