在职攻硕英语考试

【单选题】Passage Three New research suggests that animals have a much higher level of brainpower than previously thought. If animals do have intelligence, how do scientists measure itBefore defining animals’ intelligence, scientists defined what is not intelligence . Instinct is not intelligence. It is a skill programmed into an animal’s brain . Rote conditioning is also not intelligence. {{U}}Tricks{{/U}} can be learned by repetition, but no real thinking is involved . Scientists believe that insight(顿悟) the ability to use tools , and communication using human language are all effective measures of the mental ability of animals. Scientists define insight as a flash of sudden understanding . When a young gorilla could not reach fruit from a tree , she noticed some boxes scattered about the lawn near the tree . She piled up the boxes , then climbed on them to reach her reward . The gorilla’s insight allowed her to solve a new problem without trial and error.The ability to use tools is also an important sign of intelligence .Crows use sticks to get nuts out of cracks . The crow exhibits intelligence by showing it has learned what a stick can do . Likewise , seals use rocks to crack open shells in order to get at the meat.Many animals have learned to communicate using human language . One chimp can recognize and correctly use more than 250 abstract symbols on a keyboard . These symbols represent human words.An amazing parrot can distinguish five objects of two different types . He can understand the difference between the number , color , and kind of object . The ability to classify is a basic thinking skill. He seems to use language to express his needs and emotions . When ill and taken to the animal hospital for his first overnight stay , this parrot turned to go . “Come here!” he cried to a scientist who works with him . “I love you . I’m sorry. Wanna go back ” The research on animal intelligence raises important questions . If animals are smarter than once thought , would that change the way humans interact with them Would humans stop hunting them for sport or survival Would animals still be used for food , clothing , or medical experimentation Finding the answer to these tough questions makes a difficult puzzle even for a large-brained, problem-solving species like our own. As is mentioned in Paragraph 1 , “tricks” played by animals may be ________.
A、a sign of intelligence
B．a sign of instinct

C、learned through training
D．programmed in their brain at birth

网考网参考答案：C
网考网解析：
[解析]根据文章第一段第七句“Tricks can belearned by repet山on”可知，技巧通过重复可以学会。所以，答案是C。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>