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  3. Human beings act in a different way from that of animals just because they can speak while animals cannot. Even the cleverest an

Human beings act in a different way from that of animals just because they can speak while animals cannot. Even the cleverest an

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问题     Human beings act in a different way from that of animals just because they can speak while animals cannot. Even the cleverest animals cannot do things which to us seem very simple and which small children, as soon as they learn to talk, would be able to do.
    A German scientist, who made experiments for many years with big apes, found that his apes could use sticks as tools to pull down bananas which they could not reach. But they only used the stick to get a banana when both the stick and the banana were in view at the same time. If the banana was in front of them and the stick was behind them, they could not use the stick. They could not bear the banana in mind long enough to look around and pick up the stick and then use it.
    The reason for this is clear. We have words for banana and stick which help us to think about these things when they are not in sight. Even a small child knowing the words "banana" and "stick" has an idea of their relationship and is able to think of "stick" together with "banana" and to remember this long enough to pick the stick from behind and use it on the banana.
    Unable to speak, animals cannot keep their knowledge of things for long. That is why they often interrupt one line of action to something else and later forget it completely. Human beings, on the other hand, use language and are able to go after one thing continuously and do it with a definite aim.
The German scientist made experiments in order to______.
选项 A、find that animals were as clever as human beings
B、show that his apes could use sticks as tools to get bananas
C、prove that animals had no words for keeping memory of something
D、find out that some animals could use tools to get food but have no words to keep things in mind
答案D
解析 本题是一道具体细节题。问德国科学家做试验的目的是为了什么。利用查阅式阅读法，再结合全文的内容，本文是围绕着人类与动物做事情的方式不同的原因在于人类会使用语言来写的，因此作者列举德国科学家做试验的实例也是为了论证此观点。所以，本题的正确答案应是D。
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