Question

The Antarctic Icecap is the largest supply of fresh water，representing nearly 2％of the world’s total of 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 human 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(sq mi)	Volume(cu mi)	Percentage of total
Salt water
The oceans	139,500,000	317,000,000	97.2％
Inland    seas    and saline lakes	270,000	25,000	0.008
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 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．Water Supply of the World

C．Salt Water of the Earth                   D．Protection of the Water in the World

2.It can be seen from the table______.

A．humans will have to use sea water in the future

B．there is enough fresh water for man to use

C．Water in the atmosphere is the least

D．the sea water takes up 98％of the water on earth

3.The fresh water that humans can use is _________.

A．a(chǎn)bout 1,086,700 cu mi                   B．a(chǎn)bout 6,300,000 cu mi

C．a(chǎn)bout 680,000 cu mi                     D．a(chǎn)bout 2,000,000 cu mi

4.Where does the majority of fresh water exists?

A．In Arctic Icecap and glaciers.               B．In Deep ground.

C．In the Antarctic Icecap.                   D．In the atmosphere.

5.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 Deep-lying ground water.

D．Deep-lying ground water and Arctic Icecap and glaciers

 

Answer 1

【答案】

BDACC

1.B

2.D

3.A

4.C

5.C

【解析】

試題分析：本文本文講述了世界水資源的分布情況，以及淡水和海水的具體的百分比情況，并詳細(xì)說明了各種水資源所占的比例等數(shù)據(jù)。

1.B 主旨大意題。本文講述了世界水資源的分布情況，以及淡水和海水的具體的百分比情況，故本文是關(guān)于世界水供應(yīng)的話題，B項正確。

2.D 細(xì)節(jié)題。根據(jù)表格3，4行說明海里的海水和內(nèi)陸湖泊的水一共占據(jù)了世界水資源的百分之98，故D項正確。

3.A 計算題。根據(jù)第一段最后2行The fresh water actually available for human use in lakes and rivers and the accessible ground water amount to only about one-third of 1％of the world’s total water說明可以飲用的淡水只占全世界水含量的one-third of 1％而全世界水含量是326,000,000，故大約有1,086,700。A項正確。

4.C 細(xì)節(jié)題。根據(jù)文章1,2行The Antarctic Icecap is the largest supply of fresh water，representing nearly 2％of the world’s total of fresh and salt water說明The Antarctic Icecap才是最大的淡水存在的地方，故C正確。

5.C 細(xì)節(jié)題。根據(jù)表格倒數(shù)2,3行的Ground water within half a mile from surface and Deep-lying ground water.的水量基本相同，故C項正確。

考點：考查科普類短文閱讀

點評：本文本文講述了世界水資源的分布情況，以及淡水和海水的具體的百分比情況，并詳細(xì)說明了各種水資源所占的比例等數(shù)據(jù)�？疾榧�(xì)節(jié)題和計算題較多，要求考生認(rèn)真審題，結(jié)合題目和選項以及課文內(nèi)容作出準(zhǔn)確的計算和推理。