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          Look ！A boy       on the playground. 
          A．runsB．runningC．is runingD．is running
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          D

          試題分析：句意;看!一個男孩正在操場上跑步. 結(jié)合語境可知本句描述的是正在進(jìn)行的動作, 故用現(xiàn)在進(jìn)行時態(tài). run是以重讀閉音節(jié)結(jié)尾的單詞, 變現(xiàn)在分詞要雙寫最后一個輔音字母, 故選D. 
          點(diǎn)評：英語現(xiàn)在進(jìn)行時表示目前正在進(jìn)行的動作, 固定結(jié)構(gòu)為be動詞加動詞的現(xiàn)在分詞，考試中可以結(jié)合上下文及時間詞，句子結(jié)構(gòu)等信息來進(jìn)行判斷。對于以重讀閉音節(jié)結(jié)尾的單詞，需要注意雙寫最后一個輔音字母在加ing。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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