问题 单项选择题

一项每年进行的全国性的调查显示,过去30年里高中的高年级学生对非法药物的使用呈持续而明显的下降趋势。 要想从上述的调查得出结论认为20岁以下的其他人对非法药物的使用正在下降,下面哪一项,如果正确,能提供最多的支持

A.高中的高年级学生使用非法药物的水平变化很少与20岁以下的其他人使用非法药物的水平的变化相符。

B.在过去,高中的高年级学生一直是最可能使用非法药品和最可能大量使用非法药品的人群。

C.高中的高年级学生使用非法药品的比例与所有的20岁以下的使用非法药品的人比例非常相似。

D.这项调查显示的下降趋势是特别针对20岁以下的人进行的药物教育计划的结果。

E.比起非法使用药品的人数,被调查者中承认出售过非法食品的人数下降得更快。

答案

参考答案:C

解析: 题干断定:高中高年级学生对非法药品的使用持续明显地下降。 结论:20岁以下的人对非法药品的使用正在下降。 很明显,高中高年级的学生与20岁以下的人之间是平行对应关系才能得出结论。

阅读理解

阅读理解。

                                                                       The Moon

     Three hundred and eighty thousand kilometres away from the earth, the moon is man's closest neighbor

in the universe. Its surface is as large as Asia. Though so far away, the moon has a strong influence on the

ecological balance on the earth. For example, partly because of the moon's gravity, our seas and oceans have

tides.

     Nearly forty years ago, man's dream of reaching the moon was realized when American astronaut Neil

Armstrong stepped onto the moon's surface. As Armstrong said, it was a small step for a man, but a giant

leap for mankind. Just think of the past when our forebears could hardly find enough to keep alive!

     Understanding the moon is of great significance. Since there is no water and no air there, the moon is an

ideal place from which to observe the universe. A huge astronomical telescope has been installed on the moon.

And the moon's solar energy can be used more fully than the earth's. Finally there are the moon's rich mineral

resources. It is no exaggeration to say that the moon is a mini-earth in terms of mineral resources.

     Maybe it won't be long before man can benefit from the development of the moon's resources.

1. Which of the following is correct according to the passage? [ ]

A. The moon has hardly any influence on anything on the earth because it is too far away from us.

B. Tides in the seas and oceans are partly caused by the moon's gravity.

C. The moon's surface is the same as that of Asia.

D. The ecological balance depends on the moon.

2. What Armstrong said shows that _____. [ ]

A. he made only one step on the moon's surface and he believed that man would make more in the future

B. his step on the moon was not big enough

C. his step on the moon marked man's entrance to a new era (时代) of the moon's research

D. anyone could leave bigger and more steps on the moon than he did

3. "Just think of the past when our forebears could hardly find enough to keep alive!" What does this sentence

     really mean? [ ]

A. Our forefathers had to labor themselves to find the insufficient food so as to live on,but we now can go to

     the moon to open a new world!

B. Just think that our ancestors (祖先) were working so hard, while we are leading so happy a life!

C. Every time when we think of our hardworking forebears,we can't help feeling shamed of ourselves. How

     lazy we are!

D. If you have landed on the moon,you will certainly think of your forefathers, who did a lot in the development

    of science.

4. All the following statements show the great significance of the moon except _____. [ ]

A. you can more easily observe the universe on the moon

B. the moon is rich in mineral resources

C. a huge astronomical telescope is more easily installed on the moon than on the earth

D. you can more fully use the solar energy on the moon than on the earth

5. What conclusion can you draw after reading this passage? [ ]

A. The further research of the moon is of great importance.

B. The moon is a likely place to have a lot of diamonds.

C. It is no exaggeration to say that the moon is full of gold and silver as well as all kinds of treasures which

     the earth has.

D. The development of the moon's resources will benefit man, but we shall wait a long time.

单项选择题