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    The world is not hungry，but it’s thirsty.   1  while we say we are short of water.Why？Because about 97% of water on the earth is sea water which we can‘t drink or use for watering plants directly.Man can only drink and use the 3% of water that comes from rivers and lakes.   2  ，because some of it has been polluted.
    　　Now more water is needed.The problem is how we can avoid a serious water shortage in the future.  3 Scientists are making study in this field.Today，In most large cities water is used only once and then runs to the sea or rivers.but it can be used again.Even if every large city reused its water，the water will still not be enough. 4 .
    　　The sea seems to give us the best answer.There is a lot of water in the sea.All that needs to be get the salt out of the sea water.This will be expensive，but it has already been used in many parts of the world.   6 So you see，if we can find out a way，we’ll be in no danger of drying up.
    从方框中所给的选项中选出能填入空白处的最佳选项，补全短文。其中有一项为多余选项。

    A．Scientists are trying to find a cheaper way of doing it.
    B．It seems strange that nearly 3/4 of the earth is covered with water.
    C．What could people do next?
    D．We should use all the water directly.
    E. First, we should find out ways to reuse it.
    F. And we can’t even use all of that.

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    The world is not hungry，but it’s thirsty.   1  while we say we are short of water.Why？Because about 97% of water on the earth is sea water which we can‘t drink or use for watering plants directly.Man can only drink and use the 3% of water that comes from rivers and lakes.   2  ，because some of it has been polluted.

    　　Now more water is needed.The problem is how we can avoid a serious water shortage in the future.  3 Scientists are making study in this field.Today，In most large cities water is used only once and then runs to the sea or rivers.but it can be used again.Even if every large city reused its water，the water will still not be enough. 4 .

    　　The sea seems to give us the best answer.There is a lot of water in the sea.All that needs to be get the salt out of the sea water.This will be expensive，but it has already been used in many parts of the world.   6 So you see，if we can find out a way，we’ll be in no danger of drying up.

    从方框中所给的选项中选出能填入空白处的最佳选项，补全短文。其中有一项为多余选项。

    A．Scientists are trying to find a cheaper way of doing it.

    B．It seems strange that nearly 3/4 of the earth is covered with water.

    C．What could people do next?

    D．We should use all the water directly.

    E. First, we should find out ways to reuse it.

    F. And we can’t even use all of that.

     

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    完形填空。
    　　We can use many kinds of energy.  Most energy in the    l    today comes
    from    2   coal and oil. But this will not be so in the year 2050. We will get much
    of our energy _ 3   water, the sun and the    4   .We will produce atomic(原子)
    energy, much more coal and    5   as raw material（原始材料）for cloth,
    plastics and other things.
    　　Some   6    of the world are very dry. Very __7_   people live there,    8   
    there is a lot of sunshine and wind. With    9   atomic energy and energy from the
    sun and wind, we will be able to bring fresh water from far away or change sea
    water  10  fresh water.
    (     )1. A. moon  
    (     )2. A. burning
    (     )3. A. in    
    (     )4. A. moon  
    (     )5. A. water  
    (     )6. A. parts  
    (     )7. A. few    
    (     )8. A. and    
    (     )9. A. cheap  
    (     )10. A. to        		 B. sun      
    B. to burn  
    B. from    
    B. cloud    
    B. paper    
    B. places  
    B. little  
    B. but      
    B. expensive
    B. into         		C. world  
    C. boil    
    C. on      
    C. wind    
    C. glass  
    C. hills  
    C. a few  
    C. then    
    C. a little
    C. from        		 D. space  
    D. boiling
    D. to      
    D. snow    
    D. oil    
    D. ground  
    D. a little
    D. so      
    D. good    
    D. for    

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    完形填空。
    　　Villagers are more healthy than people who live in towns. Orie reason for
    this is that country air is fresher than the air in    1   . The villager breathes fresh
    clean air all day in the fields, but the air the townsman    2   is always full of
    smoke and dust.
    　　We can't live without air. If we are stopped from breathing     3    for five
    minutes, we will die. Bad air means bad health and certain kinds of    4   , which
    may kill us in the end,    5   they may not kill us at once.
    　　We all    6    what unpleasant feelings we get if we stay a long time in a
    shut, crowded room. After a time, we begin to feel very    7   , and can hardly
    keep our eyes open. Then our heads begin to ache, and the longer we stay, the
    worse we feel. How nice it is when we get    8    into the fresh air outside.
    　　We must, therefore, keep our windows open, so that the    9   in our houses
    is always fresh, and we should breathe as much as we can in the open air. For
    people who breathe   10  air for a long time often get very ill and die of lung
    diseases.
    (     )1. A. factories
    (     )2. A. breathes  
    (     )3. A. still    
    (     )4. A. experience
    (     )5. A.so        
    (     )6. A.imagirle  
    (     )7. A. sleepy    
    (     )8. A. up        
    (     )9. A. air      
    (     )10 . A. humid       		B. cities    
    B. eats      
    B. as        
    B. stress    
    B.though      
    B.know        
    B.lonely      
    B. down      
    B. environment
    B. clean          		 C. streets  
    C. takes    
    C. even    
    C. death    
    C. since    
    C. fear    
    C. energetic
    C. out      
    C. furniture
    C. open         		D. fields  
    D. smells  
    D. except  
    D. illness  
    D. also    
    D. expect  
    D. exhausted
    D. off      
    D. wind    
    D. bad      

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    阅读理解。
    　　We can not live a modern life without traveling. The fastest way of
    traveling is by air. With a plane people can travel in one day to places which it
    took a month or more to get to a hundred years ago．
    　　Traveling by train is slower than by plane, but people can see the country
    when they are traveling through. Modern trains have comfortable seats and
    dinning-cars. They make even the longest journey(旅途) enjoyable．
    　　Some people prefer to travel by sea when possible. There are large luxury
    liners(客轮) or river boats. They are not as fast as trains or planes, but traveling
    by sea is a very pleasant way to spend a holiday．
    　　Many people like to travel by car. They can make their own timetable. They
    can travel hundreds of miles or only fifty miles a day, just as their wish. They can
    stop wherever they want to see something interesting or to enjoy a good meal at a
    good restaurant, or to spend the night at a hotel. That is why people choose
    traveling by car for pleasant trips, while they usually take trains or planes for
    business．
    1. According to(根据) the passage, the fastest way of traveling is _____.
    A. by car        
    B. by train        
    C. by plane    
    D. by sea
    2. People can make even the longest journey enjoyable if they take the _____.
    A. train          
    B. plane            
    C. sea          
    D. bus
    3. _____is a very pleasant way to spend a holiday．
    A. Traveling by bike．                
    B. Traveling by train．
    C. Traveling by sea．                
    D. Traveling by car.
    4. If we travel by car, we can _____
    A. enjoy the longest journey
    B. travel only fifty miles a day
    C. make our own timetable
    D. travel to a very far place in a few minutes
    5. When people travel on business, they usually take _____
    A. a boat or a train
    B. a car or a boat
    C. a plane or a car  
    D. a train or a plane

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