1. Two thirds of this apple are bad.
長江作業(yè)本同步練習冊系列答案科目：高中英語 來源： 題型：
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.
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科目：高中英語 來源： 題型：
1. The singer and pianist asked to make a speech at the meeting yesterday.
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