题文

阅读理解。

All living things on the earth need other living things to live. Nothing lives alone. Most animals must live in a group, and even a plant grows close together with others of the same kind. Sometimes one living thing kills another, one eats and the other is eaten. Each kind of life eats another kind of life in order to live, and together they form a food chain (链条). Some food chains are simple, while others are not. But all food chains begin with the sun, and all food chains become broken up if one of the links disappears.     All life needs sunlight to live on. But only plants can use sunlight directly. Plants are "factories". They make food from sunlight, water and things in the soil and air. Plants feed all other living things. Animals can only use the sun's energy after it has been changed into food by plants. Some animals feed directly on plants, others eat smaller animals. Meat-eating animals are only eating plants indirectly.      What about human beings? We are members of many food chains. We eat rice, vegetables, and fruits and so on. We also eat meat and drink milk. But men often break up the food chains. They kill wild animals. They also make rivers, lakes and seas polluted, when these rivers, lakes and seas are polluted, the fish in them can not be eaten. If men eat the fish, they will get strange diseases.     Each form of life is linked to all others. Breaking the links puts all life in danger. 1. How does every living thing on the earth live?  [     ] A. Each plant can live alone. B. Each animal can live alone. C. If living things want to live, they must kill each other. D. Every living thing on the earth can't live without others. 2. Which living things can use the sun's energy directly? [     ] A. Animals. B. Plants. C. Animals and plants. D. All living things. 3. Who often break up the food chains? [     ] A. Human beings. B. Animals. C. Plants and animals. D. Men and wild animals. 4. Which of the following do you think is the best title for this passage? [     ] A. The sun's energy. B. Plants. C. Food Chains. D. Living Things.

题型：阅读理解  难度：偏难

答案

1-4. DBAC

据专家权威分析，试题“阅读理解。 All living things on the earth need other living ..”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。