首页资讯中心考试培训资讯详情

2012公共英语三级考试阅读练习题

2011/12/01 16:12:11河北培训网
2012公共英语三级考试阅读练习题
Certain animals have an intuitive awareness of quantities. They know without analysis the difference between a number of objects ands a smaller number. In his book The Natural History of Selbourne (1786), the naturalist Gilbert White tells how he surreptitiously removed one egg a day to make up plover's nest, and how the mother laid another egg each day to make up for the missing one. He noted that other species of birds ignore the absence of a single egg but abandon their nest if more than one egg has been removed. It has also been noted by naturalist that a certain type of wasp always provides five-never four, never six-caterpillars for each of their eggs so that their young have something to eat when the eggs hatch. Research has also shown that both mice and pigeons can be taught to distinguish between odd and even numbers of food pieces.
These and similar accounts have led some people to infer that creatures other than human can actually count. They also point to dogs that have been taught to respond to numerical questions with the correct number of barks, or to horses that seem to solve arithmetic problem by stomping their hooves number of times.
Animals respond to quantities only when they are connected to survive as a species-as in the case of the eggs-or survive as individuals -as in the case of food. There is on transfer to other situations or from concrete reality to the abstract notion of numbers. Animals can "count" only when the objects are present and only when the numbers involved are small-no more than seven or eight. In lab experiments, animals trained to count one kind of object were unable to count any other type. The objects, not the numbers, are what interest them. Animal's admittedly remarkable achievements simply do not amount to evidence of counting, nor do they reveal more than innate instinct, refined by the genes of successive generations, or the results of clever, careful conditioning by trainers.
1.What is the main idea of the passage?
A. Careful training is required to teach animals to perform tricks involving numbers
B. Animas cannot count more than one kind of object
C. of all animals, dogs and horses can count best
D. Although some animals may be aware of quantities, they cannot actually count
2.The author refers to Gilbert's book in paragraph 1 in order to___.
A. show how attitudes have changed since 1786
B. Contradict the idea that animals can count.
C. provide evidence that some birds are aware of quantities.
D. Indicate that more research is needed in this field.
相关阅读:
石家庄全国计算机等级考试精品班
石家庄公共英语三级精品班
2012年上半年全国英语等级考试(PETS)精品班报名
全国计算机等级考试(NCRE)一级计算机证书考试通过班

在线留言

学生姓名:*
联系电话:*
回电联系时间:
QQ:
所在位置:
留言内容:*
电脑版 | 关于我们 选课热线: 400-667-8560
版权所有: 河北培训网    经营许可证编号:冀B2-20130049

留言咨询

关闭
学生姓名:*
联系电话:*
回电联系时间:
QQ:
所在位置:
报名留言:*