Question

18．Do you know how it is when you see someone yawn and you start yawning too？Or how hard it is to be among people laughing and not laugh yourself？Well，apparently it's because we have mirror neurons （神经元）in our brains．
       Put simply，the existence of mirror neurons suggests that every time we see someone else do something，our brains imitate （模仿）it，whether or not we actually perform the same action．This explains a great deal about how we learn to smile，talk，walk，dance or play sports．But the idea goes further：mirror neurons not only appear to explain physical actions，they also tell us that there is a biological basis for the way we understand other people．
       Mirror neurons can undoubtedly be found all over our brains，but especially in the areas which relate to our ability to use languages，and to understand how other people feel．Researchers have found that mirror neurons relate strongly to language．A group of researchers discovered that if they gave people sentences to listen to （for example："The hand took hold of the ball"），the same mirror neurons were triggeredas when the action was actually performed （in this example，actually taking hold of a ball）．
       Any problems with mirror neurons may well result in problems with behavior．Much research suggests that people with social and behavioral problems have mirror neurons which are not fully functioning．However，it is not yet known exactly how these discoveries might help find treatments for social disorders．
       Research into mirror neurons seems to provide us with even more information concerning how humans behave and interact （互动）．Indeed，it may turn out to be the equivalent （相等物）for neuroscience of what Einstein's theory of relativity was for physics．And the next time you feel the urge to cough in the cinema when someone else does-well，perhaps you'll understand why．
72．Mirror neurons can explainC．
A．why we cry when we are hurt                  
B．why we cough when we suffer from a cold
C．why we smile when we see someone else smile 
D．why we yawn when we see someone else stay up late
73．The underlined word"triggered"in the third paragraph probably means"A"．
A．set off         B．cut off          C．built up             D．broken up
74．We can learn from the passage that mirror neuronsA．
A．relate to human behavior and interaction      
B．control human physical actions and feelings
C．result in bad behavior and social disorders           
D．determine our knowledge and language abilities
75．What is the passage mainly about？D
A．Ways to find mirror neurons．
B．Problems of mirror neurons．
C．Existence of mirror neurons．
D．Functions of mirror neurons．

Answer 1

分析 本文是一篇说明文，你知道别人打呵欠你也跟着打呵欠，在众多正在大笑的人群中而你很难不笑吗？这是你的神经元起作用，本文主要讲述神经元对于人类的行为和人类互动的作用．

解答 CAAD
72．C    细节理解题．根据第二段第一句话"the existence of mirror neurons suggests that every time we see someone else do something，our brains imitate （模仿）it，whether or not we actually perform the same action．"可知，神经元的存在表明每次我们看到别人做什么事时，我们的大脑会模仿（别人的动作），这解释了为什么我们看到别人笑，我们自己也会笑．故选C．
73．A    词义猜测题．根据下文的"perform"和本句的含义可知，调查者们发现如果他们让人们听一些句子（比如：用手拿住球），那这方面的神经元就会让我们做出这样的动作（比如用手拿住球）/发出让我们做出这样的动作的指令，因此划线处单词意为"发出，引发，触发"与"set off  引起"同义，故选A．
74．A    推理判断题．根据最后一段第一句"Research into mirror neurons seems to provide us with ever more information concerning how humans behave and interact （互动）"可知，对于神经元的研究为我们提供了很多关于人类互动行为的资料，故选A．
75．D    主旨大意题．根据第一段的疑问句"Do you know how it is when you see someone yawn and you start yawning too？"引出神经元这个概念和下文解释‘神经元对于人类行为和互动会提供更多的信息'可知，本文主要告诉我们mirror neurons的作用，D项能概括文章大意．

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