The amount of water in the world is finite(有限的). The number of people is growing fast and water use is growing even faster. Global water consumption rose six times between 1900 and 1995—more than double the rate of population growth.

As important as quantity is quality—with pollution increasing in some areas，the amount of useable water declines.

And the wider effects of water shortages are just as frightening as the prospect of having too little to drink.

Seventy percent of the water used worldwide is used for agriculture. Much more will be needed if we are to feed the world's growing population. And consumption will rise further as more people expect Western－style lifestyles and diets—one kilogram of grain－fed beef needs at least 15 cubic metres of water，while a kilo of cereals(谷物)needs only up to three cubic metres.

New technology can help，however，especially by cleaning up pollution and so making more water useable，and in agriculture，where water use can be made far more efficient.

Drought－resistant(抗旱的)plants can also help.

The optimists say“virtual water”may save the day—the water contained in crops which could be exported from water－rich countries to dry ones. But the amounts involved would be huge，and the energy needed to transport the water would be enormous(巨大的).

In any case，it is not just us who need water，but every other species that shares the planet with us. We have to rethink how much water we really need if we are to learn how to share the earth's supply. While dams and other large－scale schemes play a big role worldwide，there is also a growing recognition of the value of using the water we already have more efficiently rather than harvesting ever more from our rivers. For millions of people around the world，getting it right is a matter of life and death.

1. Which of the following statements on water consumption is NOT true?

A. Agriculture consumes more than haft of the water used in the world.

B. The growing population worsens the water shortage situation.

C. Lifestyles play an important role in water consumption.

D. The Western way of agriculture uses more water than the Asian way.

2. “Virtual water” refers to the water that ________.

A. is hidden in crops

B. is saved in agriculture

C. can be transported

D. can be reused with the aid of the Internet

3. In the last paragraph，the author mainly ________.

A. criticizes big projects such as dams

B. criticizes the use of river water

C. calls for the protection of other species

D. calls for the more efficient use of water

4. What's the main idea of the text?

A. Water is mainly wasted in agriculture.

B. Water pollution is threatening our health.

C. Shortage of water is a very serious problem.

D. Population growing influences water use.

The lady stored ________ vegetables in the basement for the winter．

1. A.
   a large amount of
2. B.
   a great deal of
3. C.
   a large quantity of
4. D.
   a good deal of

A．total 

B．whole

C．amount

D．quantity

Add up these figures and see if the ________ is correct.

A．total 

B．whole

C．amount

D．quantity