Question

【题目】 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 it 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 Mississipi. 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(巴西). 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 AmazonB.the NileC.the Mississippi

【2】Which is WRONG?

A.The Nile is in India.

B.Many cities are located on rivers.

C.Rivers play an important part in the lives of people.

【3】From a dam people can use the water for ________.

A.keeping the rivers cleanB.washing clothesC.irrigating and making electricity

【4】The water in the river is polluted because of ________.

A.people’s building a dam across a river

B.people’s swimming in the river too much

C.chemicals and other materials

【5】The best title of the passage is ________.

A.Rivers in CitiesB.The Importance of RiversC.Transportation

Answer 1

【答案】

【1】A

【2】A

【3】C

【4】C

【5】B

【解析】

本文是一篇说明文，介绍了河流对于人类生活生产的重要性。

【1】题意：最大的通航河流是__________。

细节理解题。根据原文第2段The greatest of all for navigation(航海), however, is the Amazon in Brazil可知，最大的通航河流是巴西的亚马逊河。A选项the Amazon“亚马逊河”符合题意，故选A。

【2】题意：哪一项说法错误？

细节理解题。根据原文第1段Many of the world’s great cities are located on rivers可知，世界上许多大城市都坐落于大河之上，B选项Many cities are located on rivers“许多城市坐落于河畔”说法正确，可排除。根据原文第1段almost every country has at least one river flowing through it that plays an important part in the lives of its people可知，几乎每个国家都至少有一条河流流经该国，并在人民生活中发挥着重要作用，C选项Rivers play an important part in the lives of people“河流在人民生活中发挥着重要作用”说法正确，可排除。根据原文第2段The lifeline of Egypt is Nile. To the people of India, the Ganges is great可知，尼罗河位于埃及，恒河位于印度，A选项The Nile is in India“尼罗河在印度”说法错误，故选A。

【3】题意：人们可以用水坝里的水__________。

细节理解题。根据原文第3段Then people can use the water not only to irrigate(灌溉) their fields but also to make electricity for their homes and industries可知，水坝里的水不仅可以用来灌溉田地，还可以用来发电。C选项irrigating and making electricity“灌溉和发电”符合题意，故选C。

【4】题意：河水被污染是因为__________。

细节理解题。根据原文第3段the water in the rivers becomes polluted with chemicals and other materials可知，河水被化学品和其他材料污染了。C选项chemicals and other materials“化学品和其他材料”符合题意，故选C。

【5】题意：本文最佳标题是__________。

最佳标题。通读全文可知，本文开篇即点题，河流是人类最重要的自然资源之一，随后便展开描述了河流在航运及工农业方面的作用，故本文主要内容为河流的重要作用。B选项The Importance of Rivers“河流的重要性”符合题意，故选B。