题文

阅读理解。

Rivers are one of our most important natural resources (自然资源). Many of the world's great cities are located on rivers, and almost every country has at least one river flowing through. That plays an important part in the lives of its people.      Since the beginning of history, people have used rivers for transportation. The longest one in the United States is the Mississippi. The lifeline of Egypt is Nile. To the people of India, the Ganges is great, but it is also important for transportation; ships can travel along it for a thousand miles. Other great rivers are the Congo in Africa and the Mekong in Southeast Asia. The greatest of all for navigation (航海), however, is the Amazon in Brazil. It is so wide and so deep that large ships can go about two thousand miles upon it. 　　      Besides transportation, rivers give food to eat, water to drink, water for crops, and chances for fun and recreation for the people who live along their banks. In order to increase the supply of water for crops, engineers sometimes build a dam (大坝) across a river and let a lake form behind the dam. Then people can use the water not only to irrigate (灌溉) their fields but also to make electricity for their homes and industries. However, large cities and industries that are located upon rivers often make problems. As the cities grow in size and industries increase in number, the water in the rivers becomes polluted with chemicals and other materials. People are learning the importance, however, of doing more to keep their rivers clean if they want to enjoy the benefits (利益) of this natural resource.

1. The greatest river for navigation is           .

[     ]

A. the Amazon B. the Nile C. the Mekong D. the Mississippi

2. Which of the following is WRONG according to the passage?

[     ]

A. The Nile is in India. B. Almost every country has at least one important river. C. Many cities are located on rivers. D. Rivers play an important part in the lives of people.

3. From a dam, people can use the water for            .

[     ]

A. keeping the rivers clean B. only making electricity C. washing clothes D. irrigating and making electricity

4. The water in the river is polluted because of            .

[     ]

A. people's drinking water too much B. people's swimming in the river too much C. chemicals and other materials D. people's building a dam across a river

5. The best title of the passage is ______.

[     ]

A. Rivers in Cities B. The Importance of Rivers C. Transportation D. Natural Resources

题型：阅读理解  难度：偏难

答案

1-5: AADCB

据专家权威分析，试题“阅读理解。 Rivers are one of our most important natural reso..”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。