题文

请仔细阅读下文，然后根据短文内容选择正确答案。

If someone ask you, "What colour is the sky?"I think you will answer "Blue".I'm afraid that you will be   wrong. The sky has no colour. It looks blue because we are looking at blue sunlight. The sunlight is  shining on little bits of dust ( 灰尘) in the air.      Is the sky full of air? I'm sure that you have asked this question, too. We know that there is air all  around the world, but we couldn't fly very high because as we go higher, the air gets thinner. If we go far   enough away from the earth, we find there is no air.      Maybe we can answer some questions now. What is the sky? Where is it? It is all round the world. The   sky is space (宇宙空间). In space there is nothing, but only the sun, the moon, and all the stars.

1. We often think the sky is blue because _____.

A. we think it is so     B. we like this colour     C. we don't have other colours     D. we don't like other colours

2. The sky is _____.

A. a star round it     B. a big ball with air all     C. full of dust     D. space with  the sun, the moon and the stars

3. What makes us think the sky is blue?

A. Dust in the sky.     B. Air and blue light.     C. Our own feeling.     D. Both A and B.

4. We can't fly very high because _____.

A. there's too much air in the high place     B. the high sky is full of dirty air     C. there is no air in the high enough sky     D. the sun is too hot

5. The writer of the passage _____.

A. tells us something about the sky     B. wants to tell us not to go to space     C. once flew in the sky     D. enjoys answering people's questions

题型：阅读理解  难度：中档

答案

1. A 2. D  3. D  4. C   5.  A

据专家权威分析，试题“请仔细阅读下文，然后根据短文内容选择正确答案。 If someone as..”主要考查你对  科教类阅读  等考点的理解。关于这些考点的“档案”如下：

科教类阅读

考点名称：科教类阅读

• 科普类的阅读：
  科普类的阅读理解包含介绍科学知识、社会知识的短文。阅读这类短文时，要以事实为中心进行思考，抓住事物的特征、用途、相互关系等。
  如果是介绍社会现象的文章，要掌握所谈现象的内涵。

• 答题技巧：
  1. 加强整体意识，把握文章的主要内容。在阅读的时候可给段落标上序号，并给重要的句子和
     关键词做上记号，尤其是各段中心句，为答题提供更快捷更多的信息源。
  2. 审清题干，发觉和把握试题中有效的提示性信息，确认命题的角度、阅读范围和答题方式。
  3. 定位阅读，强化对应意识。同时要注意原文利用和自我加工相结合。