[填空题]Many animals which inhabited the earth in bygone periods have entirely (46) (appear) , leaving not even a modem representative of their race. Others, no doubt, were known to prehistoric peoples, concerning which no record has come down to us. But within the period of rec (47) observation, many animals have lived and died out; various, causes contributing to their (48) ( exterminate), not least among these being in the presence of mankind. Man reconstructs the face of the earth to suit his needs; he cuts down f (49) , plows or burns over prairie lands, changes the course of rivers, drains the swamps, and thus destroys the natural en (50) of many of nature’s wild children. Then, too, he destroys creature directly; he kills them for food, for clothing, or for other utilitarian (51) ; he hunts them because he fears them, as dangerous foes to himself, or to his agr (52) pursuits; he destroys them for sport; and finally he draws them from feral conditions by (53) (domesti

[填空题]Many animals which inhabited the earth in bygone periods have entirely (46) (appear) , leaving not even a modem representative of their race. Others, no doubt, were known to prehistoric peoples, concerning which no record has come down to us. But within the period of rec (47) observation, many animals have lived and died out; various, causes contributing to their (48) ( exterminate), not least among these being in the presence of mankind. Man reconstructs the face of the earth to suit his needs; he cuts down f (49) , plows or burns over prairie lands, changes the course of rivers, drains the swamps, and thus destroys the natural en (50) of many of nature’s wild children. Then, too, he destroys creature directly; he kills them for food, for clothing, or for other utilitarian (51) ; he hunts them because he fears them, as dangerous foes to himself, or to his agr (52) pursuits; he destroys them for sport; and finally he draws them from feral conditions by (53) (domesti

[简答题]Electronic computers, which have many advantages, cannot carry out creative work and replace man.

[单项选择]The seventeenth century was one (which) many significant (advances) (were made) (in both) science and philosophy.
A. A
B. B
C. C
D. D

[单项选择]Electronic computers，which have many advantages，cannot carry out creative work and replace man．
A. 尽管电子计算机有许多优点，可是它不能理解创造性工作，也不能代替人类。
B. 有许多优点的电子计算机也不能代替人类去做创造性工作。
C. 电子计算机有很多缺点，既不能进行创造性工作，也不能代替人类。
D. 尽管电子计算机有许多优点，可是它不能进行创造性工作，也不能代替人类。

[单项选择]

The whole industrial process which makes many of the goods and machines we need and use in our daily lives, is bound to create a number of waste products which upset the environmental balance or the ecological(生态的)balance as it is known. Many of these waste products can be prevented or disposed(处理) of sensibly, but clearly while more and more new goods are produced and made complex, there will be new, dangerous wastes to be disposed of, for example, the waste products from nuclear power stations. Many people therefore see pollution as only part of a larger and more complex problem, that is, the whole process of industrial production and consumption of goods. Others see the problem mainly in connection with agriculture, where new methods are helping farmers grow more and more on their land to feed our ever-increasing population. However, the land itself is gradually becoming worn out as it is being used, in some cases, too heavily, and artificial fertilizers(人造肥料) cannot bring bac
A. the production of new industrial goods
B. increased amounts of unnatural substance
C. our ever-increasing population
D. the release of artificial substances into the environment

[名词解释] The nation has entered a period in which many houses are distinguished less by their lingering similarities than by how they diverge both from one another and from homes of the past.