Question

  The Antarctic Icecap is the largest supply of fresh water,representing nearly 2% of the world's total fresh and salt water. As can be seen from the table below,the amount of water in our atmosphere is over 10 times as much as the water in all the rivers taken together. The fresh water actually available for hu?man use in lakes and rivers and the accessible ground water amount to only about one third of 1 % of the world's total water supply.

		Surface area (m2)		Volume (m3)		Percentage of total(%)
Salt water
The oceans		139,500,000		317,000,000		97. 2
Inland seas and lakes		270,000		25,000		0.   008
	Surface area (m2)		Volume (m3)		Percentage of total(%)
Fresh water
Freshwater lakes	330,000		30,000		0.   009
All rivers(average level)	―		300		0.   0001
Antarctic Icecap	6,000,000		6,300,000		1. 9
Arctic Icecap and glaciers	900,000		680,000		0. 21
Water in the atmosphere	197,000,000		3,100		0.   001
Ground water within half a mile from surface	―		1,000,000		0. 31
Deep-lying ground water	―		1,000,000		0. 31
Total (rounded)	―		326,000,000		100.   00

1.What's the best title of this passage?

   A. Fresh water in the world

   B.Protection of the water in the world

   C. Salt water of the earth

   D. Water supply of the world

2. The fresh water that humans can use is         ，

   A.   about 1,086,700 m³   B. about 6,300,000 m³

   C.   about 680,000 m³   D. about 2,000,000 m³

3 Where does the majority of fresh water exist?

   A. In Arctic Icecap and glaciers.

   B. In the Antarctic Icecap. 

   C. In deep ground.

   D. In the atmosphere.

4. What are the two places where equal amount of fresh water is stored?

   A. Freshwater lakes and all rivers (average level) .

   B. Antarctic Icecap and water in the atmosphere.

   C. Ground water within half a mile from surface and deeplying ground water.

   D. Deeplying ground water and Arctic Icecap and glaciers.

Answer 1

1. D主旨大意题。文章主要介绍了全球水资源的储备情况。故选D项。

2. A推理判断题。根据最后一句可知，人类可利用的淡水约占全球水总量百分之一的三分之一，再根据表格中提供的全球水总量为326.000.000 m³,可计算出结果约为1. 086.700 m³。

3. B细节理解题。根据表格可知Antarctic Icecap淡水含量最多。

4. C细节理解题。根据表格可以看出，Ground water within half a mile from surface和Deeplying ground water淡水含量一样多。