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          【題目】Try to buy less______unnecessary shopping could become another source of pressure to the environment.
          A.thoughB.unlessC.becauseD.before
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          【答案】C
          【解析】
          考查連詞辨析。句意：盡量少購物，因為不必要的購物可能會對環(huán)境造成壓力。A. though雖然；盡管；然而；B. unless除非；除……之外；C. because因為；D. before在……之前。分析句子可知，過多的購物從而產(chǎn)生的垃圾會對環(huán)境造成一定的影響，兩者之間是因果關系，因此需選擇表示因果的連詞。故選C。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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