雅思阅读天天练：左脑和右脑

　　新东方在线雅思网特为大家准备了雅思阅读天天练：左脑和右脑。通过模拟练习题，同学们可以直观地了解到自己的备考状况，从而更有针对性地进行复习。更多雅思报名官网的最新消息，最新、最专业的雅思备考资料，新东方在线雅思网将第一时间为大家发布。

　　Read the passage below and answer questions 1-7.

　　The Right and Left Brain

　　It is common today to identify, in some way, withone side of the brain. You may think, for example,that you are more "right brain" than "left". When wemake such statements, we are referring to the factthat the two halves of the human brain deal withinformation from the senses, and hence the world, indifferent ways. In general, the left hemisphere is responsible for our processing of languageand logic and the right deals with aspects of thought like emotions and spatial relationships.The hemispheres also control our movements, though the left hemisphere controls the rightside of our bodies, and vice versa.

　　The fact that the two hemispheres of the brain work in different ways on different tasks is arelatively new discovery. That discovery was made by a psychobiologist named Roger Sperryand it won him a Nobel Prize in 1981. Sperry uncovered the inner workings of normal brains bystudying the brain function of people who had a certain kind of brain damage. In most brains,the two halves are connected by the corpus callosum, a bundle of millions of nerves, whichserves as a "bridge" of sorts between the two hemispheres, allowing them to communicatewith each other. The people Sperry studied had had their corpus callosa cut, and because ofthis, their left and right brains couldn't exchange information.

　　In a famous experiment, Sperry showed one such subject two pictures. The subject saw apicture of a knife with his right eye (controlled by the left brain) and a picture of a spoon withhis left eye (controlled by the right). When asked to name what he saw, the subject said knife,because it is the left brain that deals with language and the naming of things. However, whenasked to reach over with his left hand to a nearby table on which was placed both a knife and aspoon, and choose, without looking, the object he saw, the subject chose the spoon. This isbecause his left eye (controlled by the right brain) saw the spoon and his left hand (alsocontrolled by the right brain) chose this rather than the knife. The subject himself was not atall conscious of the fact that he was seeing and choosing two different objects.

　　Until recently, it was thought that there was a strict division of labour. Today, however, we areaware that, for example, while the left brain is responsible for most of the language functions,the right brain plays a role in some language functions like following a story and interpretinghumour. Tasks such as face recognition require both halves in different ways. Unfamiliar facesare interpreted and processed by the right hemisphere while familiar faces are processed andrecognized by the left. Similarly, non-musicians will interpret a melody with their right brain,but musicians will process music with their left.

　　Choose the correct letter, A, B, C or D.

　　Write your answer in box 1-7 on your answer sheet.

　　1) The right hemisphere of the human brain isresponsible for

　　A. The right side of the body

　　B. Language

　　C. Emotions

　　D. Touch

　　2) Roger Sperry studied

　　A. The corpus callosum

　　B. People with abnormal brains

　　C. People with normal brains

　　D. The connection between vision and touch

　　3) The corpus callosum

　　A. Is only found in abnormal human brains

　　B. Is found between the two hemispheres

　　C. Is part of the left hemisphere

　　D. Is where memory is stored

　　4) Roger Sperry's experiment shows that

　　A. One half of the brain processes language and the other processes touch

　　B. People see differently with each eye

　　C. The two hemispheres of the brain function in different ways

　　D. People are not conscious of the left and right halves of their brain

　　5) The subject of the knife / spoon experiment

　　A. Was not aware that he was seeing two images

　　B. Thought the spoon was a knife

　　C. Could not tell the difference between a spoon and a knife

　　D. Was unable to process visual information accurately

　　6) The example in the last sentence about musicians demonstrates that

　　A. The left side of the brain deals with familiar material

　　B. The left side of the brain processes music more efficiently

　　C. Musicians are born with more developed left brains

　　D. Listening to music requires both halves of the brain

　　7) Which of these statements is true?

　　A. We now know that the left and right brain function similarly

　　B. We now know that the left and right brain function completely separately

　　C. We now know that the left and right brain may both be involved in a task, though one sidemay be more involved than the other.

　　D. We now know that the left and right brain may both be structurally different.

　　1) C 2) B 3) B 4) C 5) A 6) A 7) C

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