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  3. What Is Death? People in the past did not question the difference between life and death. They could see that a person died when

What Is Death? People in the past did not question the difference between life and death. They could see that a person died when

admin2009-06-15  17
问题                     What Is Death?
People in the past did not question the difference between life and death. They could see that a person died when his heart stopped beating. People have learned, however, that the body does not die immediately when the heart stops beating. They discovered that we remain alive as long as our brain remains active. Today the difference between life and death is not as easy to see as in the past. Modern medical devices can keep the heart beating and the lungs breathing long after the brain stops. But is this life?
This question has caused much debate among citizens in the United States. Many of them want a law that says a person is dead when the brain dies. A person should be considered dead when brain waves stop even if machines can keep the body alive. Such a law would permit doctors to speed removal (切除) of undiseased (没病的) organs for transplant (移植) operations.
The brain is made of thousands of millions of nerve cells. These cells send and receive millions of chemical and electrical messages every day. In this way the brain controls the other body activities. Nerve-cell experts say it usually is easy to tell when the brain has died. They put small electrodes (电极) on a person’s skull (头骨) to measure the electrical signals that pass in and out of the brain. These brain waves are recorded on a television screen or on paper. The waves move up and down every time the brain receives messages from the nerve cells. The brain is dead when the waves stop moving.
Although there are people who oppose the idea of a law on brain block for variouis reasons, the idea of brain wave activity as a test of death is slowly being accepted.
选项 A、was easy to tell
B、did not exist
C、lay in the brain
D、was open to debate
答案A
解析 题干中held的正确理解很重要：hold在这里是“认为，以为”，另外备选项中be open to“对……开放的；易受到，易招致”的结构含义也是考点。首先借助常识排除B；再借助原文：利用题干中的核心结构“difference between life and death”和特征结构/时间状语“in the past”作为答案线索词，这样在原文中找到答案相关句：People in the past did not question the difference between life and death． They could see that a person died when his heart stopped beating．划线句说“人们在过去不对生死的差异提出质疑，他们认为一个人的心脏停止跳动就意味着这个人死去了。”根据这句话的内容判断A“容易辨别”是答案。
hold，“认为，以为”
e．g．We hold that no country should interfere in the internal affairs of other countries．
我们认为一国不应干涉他国的内政。
question，vt．vi．“询问；质问，表示怀疑”
e．g．I do not question his honesty．我不怀疑他的诚实。
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