题文

阅读理解。

What is the sky? Where is it? How high is it? What lies above the sky? I am sure you have often asked these questions. They are very difficult to answer, aren't they?      If someone asks you:"What color is the sky?" I think maybe you will answer"Blue". I am afraid you are wrong. The sky has no colors. When we see blue, it is the sunlight that is shining on little bits of dust in the air.      Is the sky full of air? I am sure you have asked this question, too. We know that there is air all around the earth. Planes can't fly without air. They need air to lift their wings. Planes can't fly very high because as they go higher, the air gets thinner. If we go too high up in the sky, we find there is no air.      Perhaps you can answer some of the questions now. What is the sky? Nothing. Where is it? It is all around the earth. The sky is a part of space.

1. What color is the sky according to the writer?

A. Blue. B. White. C. Black. D. Colorless.

2. What is in the sky?

A. It's empty. B. It's full of air. C. It has clouds. D. It has rains.

3. What is the meaning of the underlined word "dust"?

A. 灰尘 B. 乌云 C. 空气 D. 雨滴

题型：阅读理解  难度：中档

答案

1-3: DAA

据专家权威分析，试题“阅读理解。 What is the sky? Where is it? How high is it? ..”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。