Napoga is a 12-year-old girl in Ghana(加纳),Africa. It is hard for her family to get clean water. Every morning,she leaves home at half past five to get clean water for her family in a village far away. It takes her six hours to get enough clean water for daily cooking and drinking. She has no time to go to school or to play with her friends. Millions of people in the world are like Napoga. They can't get enough clean water to keep healthy.
Earth Day is April 22. But on all other days,we must also remember it. The water we use is the most important natural resource(自然资源) on the earth.
Water covers 70% of the earth's surface. But most of that is sea water. We can't use it for very many things. Fresh water covers only 1% of the earth's surface.
You probably feel lucky that your life isn't as hard as Napoga's. But that doesn't mean you don't have to worry about water. We all face serious water problems. One of them is water pollution. All kinds of things from cars,factories,farms and homes make our rivers,lakes,and oceans dirty. Polluted water is very bad for people to drink. And dirty water is bad for fish,too. Now, 34% of all kinds of fish are dying out.
How do cars and factories make our water dirty?First,they pollute the air. Then,when it rains,the rain water comes down and makes our drinking water dirty. Dirty rain,called acid rain(酸雨),is also bad for plants,animals and buildings.
Scientists say that in 30 years,more than half of the people in the world won't have enough clean water. We have to learn how to save more water for ourselves and our children. Here is some advice for saving water:
●Turn off the water while you brush your teeth. You can save as much as 450 liters(升) each month.
●Leaky taps(漏水的龙头) waste a lot of water. Fix them right away!
●You can easily cut your 10-minute showers in half----and you'll be just as clean.
●When you wash dishes,don't let the water run.
●Only wash clothes when you have a lot to wash. If your washing machine isn't full,you're  wasting water!
【小题1】On the earth,_______.
A.sea water is more widely(广泛地) used than fresh water
B.there is very little water for our living
C.there is 71% of fresh water
D.we don't need to worry about water
【小题2】Acid rain _______.
A.is only bad for living things
B.can be produced in factories
C.doesn't do harm(伤害) to people,but it's bad for plants,animals and buildings
D.doesn't just do harm to human beings but to animals,plants and buildings
【小题3】Which of the following wastes water?
A.We need ten minutes if we want a clean shower.
B.We should put in enough clothes when we wash them in washing machines.
C.You can keep yourself clean by having a shower for five minutes.
D.Don't let the water run when we brush our teeth and wash dishes.
【小题4】What's the main idea of the passage?
A.Something must be done to prevent water from being polluted.
B.Clean water means much to human beings and living things around us.
C.It's time to take care of the water we use.
D.Water is the most important natural resource on the earth.


Napoga is a 12-year-old girl in Ghana(加纳),Africa. It is hard for her family to get clean water. Every morning,she leaves home at half past five to get clean water for her family in a village far away. It takes her six hours to get enough clean water for daily cooking and drinking. She has no time to go to school or to play with her friends. Millions of people in the world are like Napoga. They can't get enough clean water to keep healthy.
Earth Day is April 22. But on all other days,we must also remember it. The water we use is the most important natural resource(自然资源) on the earth.
Water covers 70% of the earth's surface. But most of that is sea water. We can't use it for very many things. Fresh water covers only 1% of the earth's surface.
You probably feel lucky that your life isn't as hard as Napoga's. But that doesn't mean you don't have to worry about water. We all face serious water problems. One of them is water pollution. All kinds of things from cars,factories,farms and homes make our rivers,lakes,and oceans dirty. Polluted water is very bad for people to drink. And dirty water is bad for fish,too. Now, 34% of all kinds of fish are dying out.
How do cars and factories make our water dirty?First,they pollute the air. Then,when it rains,the rain water comes down and makes our drinking water dirty. Dirty rain,called acid rain(酸雨),is also bad for plants,animals and buildings.
Scientists say that in 30 years,more than half of the people in the world won't have enough clean water. We have to learn how to save more water for ourselves and our children. Here is some advice for saving water:
●Turn off the water while you brush your teeth. You can save as much as 450 liters(升) each month.
●Leaky taps(漏水的龙头) waste a lot of water. Fix them right away!
●You can easily cut your 10-minute showers in half----and you'll be just as clean.
●When you wash dishes,don't let the water run.
●Only wash clothes when you have a lot to wash. If your washing machine isn't full,you're  wasting water!
【小题1】On the earth,_______.

A.sea water is more widely(广泛地) used than fresh water
B.there is very little water for our living
C.there is 71% of fresh water
D.we don't need to worry about water
【小题2】Acid rain _______.
A.is only bad for living things
B.can be produced in factories
C.doesn't do harm(伤害) to people,but it's bad for plants,animals and buildings
D.doesn't just do harm to human beings but to animals,plants and buildings
【小题3】Which of the following wastes water?
A.We need ten minutes if we want a clean shower.
B.We should put in enough clothes when we wash them in washing machines.
C.You can keep yourself clean by having a shower for five minutes.
D.Don't let the water run when we brush our teeth and wash dishes.
【小题4】What's the main idea of the passage?
A.Something must be done to prevent water from being polluted.
B.Clean water means much to human beings and living things around us.
C.It's time to take care of the water we use.
D.Water is the most important natural resource on the earth.

An astronaut’s work may sound exciting, but living in space isn’t as fun as you think. The website www.space.com lists the disadvantages of living in space. Here are some of them.

When astronauts work outside the station during spacewalks, they have to wear special gloves. The gloves are very tight. They can hurt the astronauts’ fingernails(手指甲) and even make them fall off.

In space, you don’t have many choices in what you eat. It’s hard to get fresh fruits and vegetables. It is not OK to eat bread because it leaves crumbs(碎屑). Crumbs could fly around everywhere.

In space, it is impossible to have a good shower because water can fly all over the ship and break the machines. Astronauts have to use a special water-shooting(喷水) gun and a washcloth.

Astronauts lose their bone strength quickly during their stay in space. So far, there is no way to solve this problem. They do exercise while they’re in space to try to keep their bones strong as long as possible.

Perhaps the hardest part of life in space is the feeling of loneliness. Astronauts sometimes have to spend weeks and even months away from Earth. They miss their friends and families.

1.People often think the life in space is       .

A. terrible                     B. lonely                C. hard                D. fun

2.What may hurt astronauts fingernails while working in space?

A. Washcloth.                                     B. The special gloves.               

C. The water-shooting gun.                    D. Crumbs.

3.. How do the astronauts have a good shower in space?

A. By eating bread.                                                

B. By breaking the machines.             

C. By using a special water-shooting gun and a washcloth.   

D. By wearing gloves.

4. How do the astronauts keep their bones strong in space?

A. By taking medicine.                            B. By doing exercise.              

C. By taking a good rest.                    D. By walking in space.

5. What’s the hardest part of life for astronauts in space?

A. They feel very lonely.              B. They have to stay alone in space.      

C. They have no friends.                   D. They have no families.

 

Do you think there is too much noise in our city? If you live near an airport,you will be unhappy because of a plane often make a loud noise.The sound of planes or heavy vehicles is likely to cause deafness if heard continuously(不断地).

However, most people in our city do not seem to mind noise. They like to enjoy music when they are doing uninteresting jobs.It is a new danger because pop music,when played through powerful amplifiers(放大器),can reach 120 decibels(120分贝的)at a distance of five feet.A continuous noise of over 85 decibels can cause deafness.It was discovered that many young people in America could hear no better than 65-year-old people.

In the past we used to think that only workers in very noisy places would become deaf.For example,when newspapers and books are being printed,the noise level is over 85 decibels,and some of the workers become deaf.Today,however,scientists believe that 10 percent of the workers in Britain are being deafened by the noise.

Sometimes noise of less than 85 decibels can make some people tired and stressed.We all know that too much noise makes life difficult and unpleasant.It can do great harm to people's health and prevent people from working well.Workers in noisy offices are not as efficient(效率高的)as those in quiet offices.Noise makes people less efficient.Can anything be done to reduce or control noise?

In Britain the government has made several laws to reduce noise.Though the government has spent a lot of money in making airports and main roads quieter,many people think that there are still not enough laws.For example,there are no laws to control the noise of machines.In Japan,America and Norway there are such laws.As a result,workers can be given compensation(赔偿)if they become deaf.

1.Some workers become deaf because of ________.

A.hard work              B.a continuous noise of over 85 decibels

C. powerful amplifiers    D.uninteresting jobs

2.In Britain there are laws to ________.

A.stop workers from becoming deaf       B.control the noise of machines

C.keep down noise                       D.help deaf workers in need

3.Who can be given compensation if they become deaf?

A.American workers.

B.British workers.

C.Both American workers and British workers.

D.None of the above answers.

 

完形填空。  

     We live in the "computer age". People like scientists, teachers, writers and even students use computers
  to do __1__ work. But more than 30 years ago, __2__ couldn't do much. They were very big and
 expensive.  Very __3__ people were interested in them and knew how to use them. Today computers are
  smaller and __4__. Because they can do __5__ work, many people like to use them. Some people even
  have them at home.
      Computers have become very important because they can work __6__ than men and they make fewer
  mistakes. Computers can __7__  people do a lot of work. Writers now use computers to write,
 teachers  use them to teach and children use them to study. Computers can also remember what you put
 __8__ them. Computers are very __9__ and helpful. Do you want to __10__ a computer?
(     ) 1. A. lot of      
(     ) 2. A. computers    
(     ) 3. A. a few        
(     ) 4. A. cheap        
(     ) 5. A. a few        
(     ) 6. A. faster      
(     ) 7. A. ask          
(     ) 8. A. on          
(     ) 9. A. friendly    
(     ) 10. A.lend        
B. much        
B. rockets      
B. few          
B. dearer      
B. a little    
B. slow        
B. help        
B. up          
B. hcavy        
B. sell        
C. a lot            
C. machines          
C. a little          
C. more expensive    
C. many              
C. slower            
C. use              
C. into              
C. careful          
C. spend            
  D. many                
  D. scientists          
  D. little              
  D. less expensive      
  D. a lot of            
  D. quickly            
  D. make                
  D. at                  
  D. useful              
  D. have                

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