Farmers use water in many ways.（

E

The need to feed a growing population is putting much pressure on the world’s supply of water. With 97% of the world’s water too salty to be drunk or used in agriculture, the worldwide supply of water needs careful management, especially in agriculture. Although the idea of a water shortage（短缺）seems strange to someone fortunate enough to live in a high rainfull country, many of the world’s agricultural industries experience constant water shortages.

Although dams can be built to store water for agricultural use in dry areas and dry seaons, the costs of water redistribution(重新分配)are very high. Notonly is there the cost of the engineering itself, but there is also an environmental cost to be considered. Where valleys(山谷)are flooded to create dams, houses are lost and wildlife homes destroyed. Besides, water many flow easily through pipes to fields,but it cannot be transported from one side of the world to the other. Each country must therefore rely on the management of its own water to supply its farming requirements.

This is particularly troubling ro countries with agricultural industries in areas dependent on irrigation（灌溉）. In Texas, farmers’ overuse of irrigation water be resulted in a 25% redcution of the water stores. In the Central Valley area of south eastern USA, a huge water engineering project provided water for farming in dry vallege, but much of the water use has been poorly managed.

Saudi Arabia’s attempts to grow wheat in desert areas have been the pumping of huge quantities of irrigation water from underground reserves. Because there is no rainfall in these areas, such reserves can only decrease, and it is believed that fifty years of pumping will see them run dry.

72. From the first two paragraphs we learnt that _______.

A.much of the world’s water is available for use

B.people in high rainfll countries feel lucky

C.the costs of water redistribution should be considered

D.water can be easily carried through pipes across the world

B

The world is not only hungry，it is also thirsty for water． this may seem strange to you，since nearly 75% of the earth is covered with water． But about 97% of this water is sea water．Man can only drink and use the other 3% fresh water that comes from rivers，lakes，under-ground and other places． And we cannot even use all of that，because some of this fresh water has been made dirty．

At the moment，this small amount(数量) of fresh water is still enough for us． However，our need for water is getting greater and greater． Only if we take steps to solve this problem now，we can get away from a serious world water shortage later on． The people of the world cannot have an enjoyable life without enough clean water．

On one hand we should stop wasting this little water of ours，on the other hand we should find ways to reuse it，but this has not been done widely．

Today，in most large cities，water is used only once and it then returns to the sea or runs into underground places．lf we can make it clean again，it can be used once more just as if it were fresh from a spring．

But even if large cities reuse its water，we still would not have enough in the future． Where．could we turn to next for water? To the ocean! How can we do to make use of this great a-mount of sea water? We can take the salt from the water to make it fresh．

So if we take all these steps，we'll be in no danger of drying up!

( )26． Why does the writer say that the world is thirsty for water?

A． The amount of fresh water is really very small．

B． The people of the world waste too much water．

C． The people of the world have to drink a lot of water every day．

D． There are too many people in the world needing water．

A. tend

B. tend into

C. tend to

D. to tend

A. change their views about language which is not a system of linguistic knowledge but a means for communication

B. change their traditional role of a knowledge transmitter to a multi-role educator

C. use more formative assessment in addition to using tests.

D. use more task-based activities and put the students in the centre of learning

30． In order to solve the problem of water shortage，we' have to________．

a． make use of sea water on the earth

b． save as much fresh water as possible

c． reuse the water from large cities

d． stop people from，using water

e． only use the 3% of the water on the earth

A．a and e

B．a，b and c

C．b，c and d

D．a，b and d

The text is mainly about .

A.water supply and increasing population

B.water use management and agriculture

C.water redistribution and wildlife protection

D.water shornages and environmental protection.

29． The writer thinks that people in large cities should __________ ．

A． stop the used water from getting into underground

B． only use the water from the rivers

C． make their used water clean again

D． use as much sea water as possible

Water is the __46___ of all the things we eat and drink . Not many people understand this but __47____ quite true . The human body can go without ___48___ for a long time . We’ve got many examples for this . Yet two __49___ three days without water can usually make people __50____ . Man can’t live __51____ water .

Many people don’t understand how ___52__ water the human body needs __53___ work well , and many people , especially young people , do not drink enough , ___54__ in very hot weather . Our body has mostly water , about 65% to 75% . That is to say about two thirds of our body is water . When we do sports , some of the water will get away from our body . __55 _ we don’t drink some water , we won’t have enough water． And if we don’t have enough water , we’ll feel tired and many of us will get ill . So you know how important water is to us .

46.___________

( )46. A. important

B. most important

C. more important

D. different

Which of the following is NOT TRUE in the passage?

A. The two-way radio is like a telephone for Australian farmers.

B. Families on large farms could keep in touch with each other by radios.

C. The two-way radio is like a newspaper for Australian farmers.

D. All the Australians live on dry places, and they use radios in many ways.

There was no use ____ a dam where there was no water.

A: to build

B: build

C: to building

D: building