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          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? (回答問題)_______________________________
            
          2．Living on Mars would be like living on a very high mountain(改為同義句)
            
             ________________________________________________________________________
            
          3．The gray．green color may be a kind of plant life changing color with the seasons．(翻譯成漢語(yǔ))這種灰綠色_________________________________________________---
            
          4．They must take their own oxygen，food and clothing with them(改為被動(dòng)語(yǔ)態(tài))
            
             Their own oxygen，food，and clothing _________________________________with them．
            
          5．The main idea of the story is that ________________________________on Mars(完成句子)
            
            
         
        
         			
          

			
          
				
          
		
		
	
          
		
          
			
          
				
          
				  
            
          1、1．Because there is almost no oxygen on Mars．
            
          2．Living on Mars would be similar to living on a very high mountain．
            
          3．可能是隨著季節(jié)而改變顏色的植物。
            
          4．must be taken    
            
          5．there is no life
            
            				
          
			
          
			
          
				
          
			
          
			
          
				
          
			
          
			
          
				
          
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          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? (回答問題)_______________________________
            
          2．Living on Mars would be like living on a very high mountain(改為同義句)
            
             ________________________________________________________________________
            
          3．The gray．green color may be a kind of plant life changing color with the seasons．(翻譯成漢語(yǔ))這種灰綠色_________________________________________________---
            
          4．They must take their own oxygen，food and clothing with them(改為被動(dòng)語(yǔ)態(tài))
            
             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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