摘要： a. The population of that area farmers. b. The population of that area increasing very fast. A. are B. is

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阅读理解
     In the decade of the 1970s, the United Nations organized several important meetings on the human
environment to study a very serious problem.We humans are destroying the world around us.We are
using up all of our natural resources.We must learn to conserve (保护) them, or life will be very bad for
our children and grandchildren.
     There are several major aspects of this problem.
     1.Population.Most problems of the environment come from population growth.In 1700 there were
625 million people in the world；in 1900 there were 1.6 billion；in 1950,2.5 billion；and in 1980,4.4
billion.In the year 2200 there will be 6.3 billion.More people need more water, more food, more wood,
and more petroleum.
     2.Distribution(分布).Scientists say there is enough water in the world for everyone, but some
countries have a lot of water and  some have only a little.Some areas get all their rain during one season.
The rest of the year is dry.
      3.Petroleum.We are using up the world's petroleum.We use it in our cars and to heat our buildings in
winter, Farmers use petrochemicals to make the soil rich.They use them to kill insects on those plants.
These chemicals go into rivers and lakes and kill the fish there.Thousands of people also die from these
chemicals every year.Chemicals also go into the air and pollute it.Winds carry this polluted air to other
countries and other continents.
     4.Poverty.Poor farmers use the same land over and over.The land needs a rest so that it will be better
next year.However, the farmer must have food every year.Poor people cut down trees for firewood.In
some areas when the trees are gone, the land becomes desert.However, people need wood to cook their
food now.Poor people cannot save the environment for the future.
     We now have the information and the ability to solve these problems.However, this is not a problem
for one country or one area of the world.It is a problem for all humans.The people and the nation of the
world must work together to conserve the world's resources.No one controls the future, but we all help
make it.

1.According to the passage, our world is being destroyed mainly because  ____ .
A. pollution is getting worse and worse
B. population is increasing greatly
C. we humans are using up all of our natural resources
D. distribution is not reasonable

2.Most environmental problems come from   ____ .
A. forests  
B. population growth
C. too much rain  
D. poor distribution

3.Good distribution means  ____ .
A. having things in the right place at the right time
B. cutting down forests and selling them to other countries
C. building water systems to carry water to farms
D. conserving our natural resources

4. In the writer's opinion  ____ .
A. all the countries in the world should cooperate to save our world
B. the countries that have more ability should do more to protect our environment
C. only poor farmers are destroying the environment
D. it's unfair for some countries to have more water

5.The best title of the passage should be "  ___ ".
A. The World Being Destroyed
B. Conserving the World's Resources
C. Aspects that Destroyed Our World
D. A Serious Problem We Should Pay Attention to
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In the decade（十年）of the 1970s, the United Nations organized several important meetings on the human environment to study a very serious problem．We humans are destroying the world around us．We must learn to protect them, or life will be very bad for our children and grandchildren．
There are several major aspects to this problem．
Population
Most problems of the environment come from population growth．In 1700 there were 635 million people in the world; in 1900 there were 1．6 billion; in 1950, 2．5 billion; and in 1980, 4．4 billion．In the year 2010 there will be 7．3 billion．More people need more water, more food, more wood, and more petroleum．
Distribution
Scientists say there is enough water in the world for everyone, but some countries have a lot of water and some have only a little．Some areas get all rain during one season．The rest of the year is dry．
Petroleum
We are using up the world’s petroleum．We use it in our cars and to heat our buildings in winter．Farmers use petrochemicals to make the soil rich．They use them to kill insects on those plants．These chemicals go into rivers and lakes and kill the fish there．Thousands of people also die from these chemicals every year．Chemicals also go into the air and pollute it．Winds carry this polluted air to other countries and other countries．
Poverty
Poor farmers use the same land over and over．The land needs a rest so it will be better next year．However, the farmer must have food every year．Poor people cut down trees for firewood．In some areas when the trees are gone, the land becomes desert．However, people need wood to cook their food now．Poor people cannot save the environment for the future．
We now have the information and the ability to solve these huge problems．However, this is not a problem for one country or one area of the world．It is a problem for all humans．The people and the nation of the world must work together to protect the world’s resources．No one controls the future, but we all help make it．
【小题1】According to the passage, our world is being destroyed mainly because ______．

A．pollution is getting worse and worse
B．population are increasing greatly
C．we humans are using up all of our natural resources
D．distribution is not reasonable．
【小题2】Good distribution means ________．
A．having things in the right place at the right time．
B．cutting down forests and selling them to other countries．
C．building water systems to carry water to farms．
D．conserving our natural resources
【小题3】The best title of the passage should be ________
A．The World Being Destroyed
B．A Serious Problem We Should Pay Attention to
C．Aspects That Destroyed Our World
D．Conserving the World’s Natural Resources

 查看习题详情和答案>>

In the decade（十年）of the 1970s, the United Nations organized several important meetings on the human environment to study a very serious problem．We humans are destroying the world around us．We must learn to protect them, or life will be very bad for our children and grandchildren．

       There are several major aspects to this problem．

       Population

       Most problems of the environment come from population growth．In 1700 there were 635 million people in the world; in 1900 there were 1．6 billion; in 1950, 2．5 billion; and in 1980, 4．4 billion．In the year 2010 there will be 7．3 billion．More people need more water, more food, more wood, and more petroleum．

       Distribution

       Scientists say there is enough water in the world for everyone, but some countries have a lot of water and some have only a little．Some areas get all rain during one season．The rest of the year is dry．

       Petroleum

       We are using up the world’s petroleum．We use it in our cars and to heat our buildings in winter．Farmers use petrochemicals to make the soil rich．They use them to kill insects on those plants．These chemicals go into rivers and lakes and kill the fish there．Thousands of people also die from these chemicals every year．Chemicals also go into the air and pollute it．Winds carry this polluted air to other countries and other countries．

       Poverty

       Poor farmers use the same land over and over．The land needs a rest so it will be better next year．However, the farmer must have food every year．Poor people cut down trees for firewood．In some areas when the trees are gone, the land becomes desert．However, people need wood to cook their food now．Poor people cannot save the environment for the future．

       We now have the information and the ability to solve these huge problems．However, this is not a problem for one country or one area of the world．It is a problem for all humans．The people and the nation of the world must work together to protect the world’s resources．No one controls the future, but we all help make it．

1.According to the passage, our world is being destroyed mainly because ______．

       A．pollution is getting worse and worse   

B．population are increasing greatly

       C．we humans are using up all of our natural resources

       D．distribution is not reasonable．

2.Good distribution means ________．

       A．having things in the right place at the right time．

       B．cutting down forests and selling them to other countries．

       C．building water systems to carry water to farms．

       D．conserving our natural resources

3.The best title of the passage should be ________

       A．The World Being Destroyed    

       B．A Serious Problem We Should Pay Attention to

       C．Aspects That Destroyed Our World

       D．Conserving the World’s Natural Resources

 

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阅读理解

　　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．

(1)

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

(2)

Which of the following is true?

[　　]

A．

The water in Texas have been reduced by 75％．

B．

Most industries in the world suffer from water shortagers．

C．

The underground water in Saudi Arabia might run out in 50 years．

D．

Good management of water use resulted from the project in the Central Valley．

(3)

What is most likely to be discussed in the paragreh that follows?

[　　]

A．

Steps to improving water use managet．

B．

Ways tor redjuce the costs of builing dams．

C．

Measured to dmal with worldwide water shortages．

D．

Appmihes to handling the pressure on water supply．

(4)

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．

 查看习题详情和答案>>

阅读理解

　　In the decade(十年)of the 1970s, the United Nations organized several important meetings on the human environment to study a very serious problem．We humans are destroying the world around us．We must learn to protect them, or life will be very bad for our children and grandchildren．

　　There are several major aspects to this problem．

Population

　　Most problems of the environment come from population growth．In 1700 there were 635 million people in the world; in 1900 there were 1.6 billion; in 1950, 2.5 billion; and in 1980, 4.4 billion．In the year 2010 there will be 7.3 billion．More people need more water, more food, more wood, and more petroleum．

Distribution

　　Scientists say there is enough water in the world for everyone, but some countries have a lot of water and some have only a little．Some areas get all rain during one season．The rest of the year is dry．

Petroleum

　　We are using up the world's petroleum．We use it in our cars and to heat our buildings in winter．Farmers use petrochemicals to make the soil rich．They use them to kill insects on those plants．These chemicals go into rivers and lakes and kill the fish there．Thousands of people also die from these chemicals every year．Chemicals also go into the air and pollute it．Winds carry this polluted air to other countries and other countries．

Poverty

　　Poor farmers use the same land over and over．The land needs a rest so it will be better next year．However, the farmer must have food every year．Poor people cut down trees for firewood．In some areas when the trees are gone, the land becomes desert．However, people need wood to cook their food now．Poor people cannot save the environment for the future．

　　We now have the information and the ability to solve these huge problems．However, this is not a problem for one country or one area of the world．It is a problem for all humans．The people and the nation of the world must work together to protect the world's resources．No one controls the future, but we all help make it．

(1)

According to the passage, our world is being destroyed mainly because ________．

[　　]

A．

pollution is getting worse and worse

B．

population are increasing greatly

C．

we humans are using up all of our natural resources

D．

distribution is not reasonable．

(2)

Most environmental problems come from ________．

[　　]

A．

forests

B．

population growth

C．

too much rain

D．

poor distribution

(3)

Good distribution means ________．

[　　]

A．

having things in the right place at the right time．

B．

cutting down forests and selling them to other countries．

C．

building water systems to carry water to farms．

D．

conserving our natural resources

(4)

In the writer's opinion, ________．

[　　]

A．

all the countries in the world should cooperate to save our world

B．

the countries that have more ability should do more to protect our environment

C．

only poor farmers are destroying the environment

D．

it's unfair for some countries to have more water

(5)

The best title of the passage should be ________．

[　　]

A．

The World Being Destroyed

B．

A Serious Problem We Should Pay Attention to

C．

Aspects That Destroyed Our World

D．

Conserving the World's Natural Resources

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