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    The color of Mars: red ; 【查看更多】

     

    题目列表(包括答案和解析)

    Mars

        Is there life on Mars? We don’t know．We’re sure that people like those on the earth don’t live on Mars．Earth people need oxygen to breathe．There is almost no oxygen on Mars．

        Living on Mars would he like living on a very high mountain．There would be little air. It might be 50 degrees above zero at noon and l00 degrees below zero at night．Many people think there may be plants on Mars．We know that Mars has carbon(碳)．This is a kind of material found in all plants and animals on earth．Through a telescope，Mars looks red．In some places，it seems gray．At times the gray color turns gray—green，then gray again．The gray-green color may be a kind of plant life changing color with the seasons．

      Will men go to Mars one day? If they do，they must take their own oxygen, food and clothing with them．

    1．Why can’t people live on Mars? (回答问题)_______________________________

    2．Living on Mars would be like living on a very high mountain(改为同义句)

       ________________________________________________________________________

    3．The gray．green color may be a kind of plant life changing color with the seasons．(翻译成汉语)这种灰绿色_________________________________________________---

    4．They must take their own oxygen，food and clothing with them(改为被动语态)

       Their own oxygen，food，and clothing _________________________________with them．

    5．The main idea of the story is that ________________________________on Mars(完成句子)

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    Maybe you know a lot about the city you live in. You may even know some interesting facts about Earth, but 16  do you know about Mars? Will there be  17  there just like people on Earth?

    Mars is the fourth planet from the sun and it's the most like Earth, but it's much 18   than Earth because it's farther from the sun. It's also the only planet whose surface can be 19   from Earth.

    Mars is often called "the red planet" because the rocks on it have a dark   20   color. There are strong winds on Mars that can 21  dust into the hills.

    For many years, people have 22 Mars. They have sent instruments and robots there. Some of the robots got there, 23  most failed.

    NASA(美国国家宇航局) sent two robots to Mars two years ago. They wanted to  24   signs of water and life on Mars. Some day, humans will travel to Mars and have an even 25  look at our red neighbor. Maybe it could be you!

    (   )16.  A. when          B. what          C. which           D. how

    (   )17.  A. sound         B. life          C. air             D. water

    (   )18.  A. hotter        B. colder        C. bigger          D. smaller

    (   )19.  A. seen          B. wrote         C. heard           D. visited

    (   )20.  A. red           B. black         C. white           D. yellow

    (   )21.  A. blow          B. look          C. mix             D. fly

    (   )22.  A. lived on      B. landed on     C. studied         D. written

    (   )23.  A. but           B. and           C. however         D. or

    (   )24.  A. leave         B. use           C. find            D. give

    (   )25.  A. faster        B. farther       C. closer          D. lower

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    阅读理解。
        Is there life on Mars? Wedon't know. We're sure thatpeople on the earth are not ableto live on Mars. People needoxygen to breathe. There isalmost no oxygen on Mars.    
        Living on Mars would be like living on avery high mountain. There would be little air.The temperature might be 50 degrees abovezero at noon and 140 degrees below zero atnight. Many people think there may be plantson Mars. We know that on Mars there is carbon(碳). This is a kind of material found in allplants and animals on the earth. Through atelescope, Mars looks red. In some places, itseems gray. At times the gray color turnsgray-green, then brown, then gray again. Thegray-green color may be a kind of plant.   
        Will men go to Mars one day? If they do,they must take enough oxygen, food andclothing with them.
    根据短文内容，判断正(T)误(F)。
    (     ) 1. There is enough oxygen for us to live  on Mars.
    (     ) 2. It‘ s too hot in the daytime but it’s too cold at night on Mars.
    (     ) 3. We can find carbon in all plants and  animals on the earth.
    (     ) 4. Sometimes Mars looks blue.
    (     ) 5. If one day we can go to Mars, we  must take enough oxygen, food and clothing  with us.

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    完形填空。
    　　Maybe you know a lot about the city you live in. You may even know some
    interesting facts about Earth, but    1   do you know about Mars? Will there be 
       2    there just like people on Earth?
    　　Mars is the fourth planet from the sun and it's the most like Earth, but it's
    much    3   than Earth because it's farther from the sun. It's also the only planet
    whose surface can be    4   from Earth.
    　　Mars is often called "the red planet" because the rocks on it have a dark   5  
    color. There are strong winds on Mars that can    6    dust into the hills.
    　　For many years, people have   7    Mars, They have sent instruments and
    robots there.
    Some of the robots got there,    8   most failed.
    　　NASA(美国国家宇航局) sent two robots to Mars two years ago. They
    wanted to   9   signs of water and life on Mars. Some day, humans will travel to
    Mars and have an even   10   look at our red neighbor.
    (     )1. A. when    
    (     )2. A. sound  
    (     )3. A. hotter  
    (     )4. A. seen    
    (     )5. A. red    
    (     )6. A. blow    
    (     )7. A. lived on
    (     )8. A. but    
    (     )9. A. leave  
    (     )10. A. faster     		B. what    
    B. life    
    B. colder  
    B. wrote    
    B. black    
    B. look    
    B. landed on
    B. and      
    B. use      
    B. farther      		 C. which  
    C. air    
    C. bigger
    C. heard  
    C. white  
    C. mix    
    C. studied
    C. however
    C. find  
    C. closer     		D. how    
    D. water  
    D. smaller
    D. visited
    D. yellow
    D. fly    
    D. written
    D. or    
    D. give  
    D. lower  

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    阅读理解。根据要求完成下列各题。
            Mars is the fourth planet from the sun and is commonly known as the Red Planets. The rocks, soil and sky
    of it are a little red or pink. Its name was given by the Romans in honor of their god of war.
            People on the earth need oxygen to breathe. There is almost no oxygen on Mars. Living on Mars would be
    like living on a very high mountain. There would be little air. It might be 50 degrees above zero at noon and 100
    degrees below zero at night. We know that Mars has carbon. Through a telescope, Mars looks red. In some
    places, it seems gray. At times the gray turns gray-green, then brown, then gray again. The gray-green may be
    a kind of plant color which changes with the seasons.
            Life is expected on Mars by scientists, because there are distinct seasons on the planet's surface. This
    condition might support plants. However, some researches find if Mars had life, it must have been a long time
    ago. For Mars' first 600 millions years, it had plenty of water and proper temperatures for life. But now the
    planet's environment has changed. Mars is not a pleasant place for any form of life.
    1. 根据解释，在短文中找出相应的单词或短语。
        ______: famous        ______: sometimes
    2. Its name was given by the Romans in honor of their god of war.
    (改为主动语态的句子) __________________________________________________________________
    3. Why is life expected on Mars by scientists?
    (回答问题) __________________________________________________________________
    4. There is almost no oxygen on Mars.
    (改为反意疑问句) There is almost no oxygen on Mars, _____ _____?
    5. But now the planet's environment has changed. Mars is not a pleasant place for any form of life.
    (翻译成汉语) __________________________________________________________________

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