草鱼是一种味美可口的淡水鱼。下列有关草鱼的特征中，属于鱼类主要特征的是( )

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• 1用鱼缸饲养金鱼时，如果数量过多，就会出现金鱼频频浮头，步导致死亡，这是因为 ( )

  A．食物缺乏 B．氧气不足
  

  C．空间太小 D．相互攻击

  
  

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• 2 在消化道的某一部位内抽取内容物进行化验，结果发现其中的脂肪类物质还没有被消化，蛋白质却已被初步消化，那么

  
  

  A．口腔 B．食道 C．胃 D．小肠

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• 3Which may be the most possible place for people to work in tomorrow？

  
  

   

  　　A. In the office.

   

  　　B. At school.

   

  　　C. At home.

   

  　　D. In the company.

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• 4What does the writer try to tell us with the last two sentences？

  
  

   

  　　A.    Every computer must have the Internet.

   

  　　B.    The Internet is more and more popular.

   

  　　C.    Most of the information is in English.

   

  　　D.    English is important in using the Internet. 

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• 5Perhaps you have heard a lot about the Internet， but what is it， do you know？ The Internet is a network

  What is the passage mainly about？

   

  　　A. Internet.

   

  　　B. Information.

   

  　　C. Computers.

   

  　　D. E-mails.

   

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• 6Hurry up， _____ well miss the train.

  
  

   

  　　A. but B. or C. and D. so

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• 7There _____ an English film tomorrow evening.

  
  

   

  　　A. will have B. will has C. is going to have D. is going to be

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• 8This box is _____ heavy for me _____ carry.

  
  

   

  　　A. too to B. to too C. to to D. too too

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• 9They will go to the Great Wall if it _____ tomorrow.

  
  

   

  　　A. isnt rain B. rains C. doesnt rain D. wont rain

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• 10Mr. Green has little time today， _____？

  
  

   

  　　A. have he B. hasnt he C. does he D. doesnt he

   

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