BrainTransplantsResearchonthehumanbrainhasbeenattractingmoreandmorescientistsinrecentyears．（71）Ifwecompareahumanbraintoaharddisc，whatthescientistsaredoingistomakebetteruseoftheharddisc．Theideathata

Question

Brain Transplants
Research on the human brain has been attracting more and more scientists in recent years．（71）___If we compare a human brain to a hard disc，what the scientists are doing is to make better use of the hard disc．
The idea that a human brain could be transplanted （移植） may come from Frankenstein．In 1999，an experiment turned a bear into a dolphin （海豚）．（72）___They were made of the memory area in the dolphin's brain containing information about swimming．They had a series of useful information，which was saved into a button-sized chip （芯片）．Later the information was transplanted into the action memory area in the bear's brain．（73）___It proved to be a highly successful experiment and a bear was turned into a dolphin．
Recently，another memory transplant was performed at the Motor Nerve Rescarch Instance of the University of California．The experiment bad an entire transplant of the memory area．（74）___The transplant was performed from a dog named Cenius to a dog named idiot．Cenius could follow up to 100 gestures and orders made by its master．It was a real genius in memorizing．However，Idiot had no contact with people since its birth．It because an animal with nothing in its brain，without any memory．
（75）___When the two dogs woke up，Idiot had grasped all the abilities Cenius possessed； it was good at memorizing and sensible．It could follow every gesture and any command given by its master．But Cenius gave no response to its master，and did not recognize him at all．

A．The experiment was a complete success．
B．It included actions，moods，logic，words，images，etc．
C．Then it was released （释放） by means of electric power．
D．Different images have different meanings in the memory area．
E．Using the most advanced technology，detailed images were produced．
F．Discoveries show that messages are carried by the central nervous system in the brain．
G．One of the latest topics is how to change the human brain or combine it with the computer．

Answer 1

GFCBA
71．G．考查上下文的理解能力．前面提到科学家对大脑的研究更加感兴趣，后面说把大脑比作计算机硬盘，那么G项中描述的最近的一个话题就是如何把人类大脑和计算机联系起来符合文章的内容；故选G．
72．F．考查上下文的理解能力．本段提到了大脑移植，并以熊与海豚为例，那么接下来叙述的自然是研究发现的问题，故选FDiscoveries show that messages are carried by the central nervous system in the brain．信息主要是由大脑中的中枢神经输送的．
73．C．考查上下文的理解能力．这是叙述的实验的步骤Later the information was transplanted into the action memory area in the bear's brain，C项中的then紧承上文进行叙述，故选C．
74．B．考查上下文的理解能力．开头一句说明这是进行的另一项实验，结合The experiment bad an entire transplant of the memory area可知，后面描述的是实验包含的环节等，所以B项It included actions，moods，logic，words，images，etc．与此相吻合．
75．A．考查上下文的理解能力．通过后面的描述Idiot had grasped all the abilities Cenius possessed； it was good at memorizing and sensible．It could follow every gesture and any command given by its master．可知，实验取得了成功；故选A．