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  3. How well do you know your dog? The answer is, not nearly as well as your dog knows you. Given the right motivation, humans can c

How well do you know your dog? The answer is, not nearly as well as your dog knows you. Given the right motivation, humans can c

admin2008-12-30  45
问题     How well do you know your dog? The answer is, not nearly as well as your dog knows you. Given the right motivation, humans can certainly be perceptive (有洞察力的) enough. But most dog lovers discover, sooner or later, that dogs are sensitive to the behavioral signs of their owners that humans rarely equal. And that’s nothing. Scientists have recently discovered that dogs can distinguish, with amazing accuracy, between breath samples from people with lung cancer and from people without. The dogs have to be trained to do it, of course. But the fact that they can do it at all is remarkable. There aren’t enough biscuits in the world to teach a human to smell at such an extraordinary level of subtlety (细微之处).
    This news will give pause to almost anyone who lives with a dog. Just what a dog "knows" is hard to say, because the human idea of "knowing" is so closely related to the ability to express what you know. Even trained cancer-sniffing dogs express their knowledge — their distinction between samples — only by sitting or not sitting. But this is what always happens. We tend to forget the extraordinary powers of the animals we live with simply because we live with them. We tend to humanize them, which means, if nothing else, that we tend to reduce them — in terms of their sensory powers — to our muddling (糊涂 ) level. We can barely take in the fact that when a dog comes up and sniffs us, it is really giving us a check-up.
    Not that this will change the dynamic of our relations with man’s best friend. For a while — remembering the cancer-sniffing dogs — some of us will wonder when we see our pets cock their heads, "What are you looking at?" But time will pass, and humans will be humans, and we will forget that the beast we are walking with may already know things about us that we will discover only too late.
According to the first paragraph, we can find that clogs______.
选项 A、are more sensitive to human behavior than man is to theirs
B、will develop some behaviors like their owners
C、know almost everything about man
D、are as emotional as their owners
答案A
解析 本题为细节题，要求从第一段中找到与四个选项表达内容一致的细节信息。选项A．are more sensitive to human behavior than man is to theirs(对于人类的行为比人类自己更为敏感)与第一段中“…dogs are sensitive to the behavioral signs of their owners that humans rarelyequal．”完全一致，是正确答案。选项B．will develop some behaviors like their owners则在第一段中没有提到；虽然在第一段中提到狗可以嗅出肺癌患者，但选项C．know almost everythingabout man则太过绝对；D项的信息在文章中没有提及。
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