Of all the animals in the animal kingdom, which one (aside from man) is the cleverest?Ther

Of all the animals in the animal kingdom, which one (aside from man) is the cleverest?
There are several ways of measuring the intelligence of animals. In one test a scientist sets three same cans on a table. While the animal watches, he puts food under one of the cans. Then he leads the animal away. Some time later, he brings it back to see if it remembers which can has the food. No smelling is allowed; the animal must go directly to the correct can or it fails.
This is called a delayed-response test. The idea is to find out how long an animal’s memory can keep information. The scientists would try showing the cans to the animal one hour later, or two hours later, or even a full day later. They discovered that chimpanzees and elephants have the best memory, and were able to remember the correct can for at least twenty hours. No other animal is close. Dogs came next, but they only remember for nine hours.
To settle the matter, the scientists designed a huge maze (迷宫) and ran the chimps and elephants through it. The maze was very difficult, with many blind paths and dead ends. It took the chimps ten minutes to find their way out. The elephants needed half an hour. Even allowing for the elephants’ slower rate of speed, the test shows that chimpanzees are the cleverest animals.
From this and other tests, the scientists drew the following conclusion: an animal’s intelligence depends on the size of its brain in proportion (比例) to the size of its body. The elephant’s brain weighs ten pounds. But this is only 1/600th of its 6,000 pounds body. A chimp’s brain weighs about one pound, or 1/120th of its total body weight. So in proportion to its body size, the chimp has four times as much brain as the elephant----more brain for less body. The chimp is the champ!
【小题1】Which is the best title?A．The Elephant’s MemoryB．The Cleverest AnimalC．Judging IntelligenceD．The Chimp’s Brain【小题2】The main idea of this passage is that .A．there are several ways of measuring the intelligence of animalsB．chimps and elephants have the best memoryC．intelligence tests show that the chimp is the cleverest animalD．the scientists designed a huge maze and ran the chimps and elephants through it【小题3】 The delayed-response test is designed to test an animal’s .A．eyesightB．intelligenceC．learning abilityD．memory【小题4】The passage tells that elephants .A．never forget thingsB．are more clever than chimpsC．are slower-moving than chimpsD．have better memories than chimps【小题5】According to the passage, a rhinoceros (犀牛) that weighs 2100 pounds, and has a 3-pound brain is .A．as clever as a chimpB．more clever than an elephantC．less clever than an elephantD．as clever as an elephantB

(答案→)B 解析：文章主要想弄清什么动物是最聪明的，通过研究表明，猩猩是最聪明的动物，这主要的根据动物的脑量和身体的比例决定的。【小题1】标题题：从第一段的句子：Of all the animals in the animal kingdom, which one (aside from man) is the cleverest?可知这篇文章讲的是除了人类最聪明的动物是什么。选B【小题2】主旨题：从文章最后一句话So in proportion to its body size, the chimp has four times as much brain as the elephant----more brain for less body. The chimp is the champ!可知这篇文章主要想说明猩猩是最聪明的动物，选C【小题3】细节题：从第三段的句子：This is called a delayed-response test. The idea is to find out how long an animal’s memory can keep information. 可知延迟反应的测验是为了弄清动物的记忆力，选D【小题4】细节题：从第四段的句子：It took the chimps ten minutes to find their way out. The elephants needed half an hour.可知大象比猩猩动作慢，选C【小题5】推理题;从最后一段的句子：The elephant’s brain weighs ten pounds. But this is only 1/600th of its 6,000 pounds body. 可知大象的脑子是身体的1/600，而这个犀牛的脑子是身体的1/700,所以犀牛没有大象聪明，选C

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