题文

阅读理解。

As we all know, the ocean moves. But waves (波浪) breaking on the beach make the ocean fun. When you stand on the shore (海岸) and look at the waves, it seems like the water is rolling (翻滚) in toward you. But the water is not really moving forward. What you see moving is wave energy. And wave energy comes from the wind.      Let's think about how this works. As wave energy passes through the water, the energy makes particles (粒子) of water move up and down. Just give you an example of a wave passing under a basketball. We put a basketball on the sea. When the wind blows, a wave comes from behind the basketball. The basketball moves up to the top with the wave. Then the wave continues and leaves the basketball behind. The basketball looks lower, but it doesn't move forward. That's because the wave energy moves the water that is under the basketball up and down as it passes.     So why can you see a wave knock you down on the shore? When a wave moves toward the shore, the bottom (底部) of the wave slows down because it meets the ocean floor. But the top, which is called crest, keeps moving. The different action causes the wave to fall over or break onto the shore. If a wave is very large, it carries a lot of energy when it hits the land. As time goes by, waves can break up and carry away the rocks and other things on the shore. Shorelines are changing all the time because of wave action.

1. ______ is really moving forward when you look at the waves.

[     ]

A. Water B. Wave energy C. Water and wave energy

2. Match (与……相匹配) the sentences with the pictures and choose the right answer.     (1) The basketball moves up to the top with the wave.     (2) The wave continues and leaves the basketball behind.     (3) When the wind blows, a wave comes from behind the basketball.                    a                                b                                 c

A. a-(2)     b-(1)     c-(3) B. a-(3)     b-(2)     c-(1) C. a-(3)     b-(1)     c-(2)

3. The underlined word "crest" in the passage means "           " in Chinese.

[     ]

A. 波峰 B. 波谷 C. 波长

4. Which of the following is NOT true according to the passage?

[     ]

A. Wave energy comes from the wind. B. All the waves can carry a lot of energy when they hit the land. C. Wave action makes shorelines change all the time.

5. The main idea of this passage is ______.

[     ]

A. how wave energy causes wave action B. what makes particles of water move C. why a wave can knock you down

题型：阅读理解  难度：偏难

答案

1-5: BCABA

据专家权威分析，试题“阅读理解。 As we all know, the ocean moves. But waves (波浪..”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。