答案　D

　　49．The word said by the Nobel foundation shows that ________.

　　A．we couldn't experience the smell of a particular flower before

　　B．we know how to experience the smell of a particular flower now

　　C．we know better how our brain works when we experience smell

　　D．we now have a full understanding about smells of flowers

　　解析　推理判断题。“Therefore，we can consciously experience the smell of a particular flower in spring and recall this smell memory at other times，” the Nobel foundation said.本句意为：因此，我们能有意识地去体会春天里的特别的花香，在其他时间还可以回味这种回忆。我们的嗅觉让我们闻到了花香，而对花香的回忆是大脑来完成的。所以本题答案为C。

　　答案　C

　　50．Which of the following is TRUE according to the text?

　　A．The 2004 Nobel Medicine Prize announced on October 4.

　　B．The 2004 Nobel Chemistry Prize announced on October 9.

　　C．The two researchers began their work thirteen years ago.

　　D．The two researchers found how cells work in the brains.

　　解析　推理判断题。US researchers Richard Axel and Linda Buck received the 2004 Nobel Prize in Physiology or Medicine on Monday.由本句可得出答案。

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