Question

    The World's Longest Rivers

River	Length	Location
Nile	4,132 miles (6,650 km)	Africa
Amazon	4,000 miles (6,400 km)	South America
Chang Jiang(Yangtze)	3,915 miles (6,300 km)	China
Mississippi—Missouri—Red Rock	3,902 miles (6,275 km)	United States
Ob	3,364 miles (5,410 km)	Russia

Fast Facts

The Nile River passes through 9 countries: Burundi, Democratic Republic of Congo, Egypt, Ethiopia, Kenya, Rwanda, Sudan, Tanzania, and Uganda.

The Amazon is second in length but first in amount of water carried and area of land drained（排水）.

Chang Jiang is the longest river in Asia and the third—longest in the world. The river is the longest in the world to flow wholly within one country.

The Missouri and Red Rock Rivers are considered tributaries (a stream or river that flows into a main river) of the Mississippi.

The Mississippi river system goes through only one country: the United States.

The Ob River is a major river in western Siberia, Russia and is the world's seventh longest river.

1.How are the rivers listed in the table?

A.From northernmost to southernmost. B.From widest to narrowest.

C.From longest to shortest. D.By greatest to least volume（体积）.

2.Why are the Mississippi, Missouri, and Red Rock Rivers grouped together in the river?

A.All three are the same length. B.They all flow to the Amazon.

C.They are all rivers in North America. D.They are part of the same river system.

3.Which river is the longest in the world that goes through only one country?

A.Nile. B.Chang Jiang. C.Amazon. D.Ob.

Answer

1.C

2.D

3.B

【解析】

本文是篇说明文。文章主要介绍世界上几条大河，包括尼罗河、亚马逊河、长江、密西西比河，密苏里河和红岩河、鄂毕河，还介绍了这些河流的长度、所属国家以及流经地等相关信息。

1.细节理解题。根据表格第二列Length，可知表格中的河流是按照由最长到最短进行介绍的。故选C。

2.细节理解题。根据文中信息“The Missouri and Red Rock Rivers are considered tributaries (a stream or river that flows into a main river) of the Mississippi.”以及“The Mississippi river system”，可知密苏里河和红岩河被认为是密西西比河的支流，属于密西西比河水系的一部分。故选D。

3.细节理解题。根据文中信息“The river is the longest in the world to flow wholly within one country.”，可知长江是世界上只流经一个国家的最长的河流。故选B。