A. were young artists and the owners of small galleries B. tried to balance their losses by buying up the work of young artists
C. were the well established art dealers
D. decided to stop exhibitions altogether
Computers should never have acquired the exalted status they now have. Fascinating and
invaluable as they are, even the most advanced have less brain power than a three-year-old.
They do, however, score on single-mindedness. The three-year-old uses his brain not only to
think but also to do tasks like seeing, hearing and running about, which need rapid and
sophisticated electro-mechanical interactions- we too run on electricity. But the computer just
sits there and sends spacecraft to the moon or reorganizes the world banking system, which is
very much easier. That's why man's dream of robot servants is still a long way off.
4. The main point made in the passage is that the human brain………..
A. is much inferior to any known computer
B. is infinitely more complex and powerful than any known computer. C. reaches its maximum efficiency at the age of three
D. is not as complicated and mysterious as has usually been taught.
5. It is explained in the passage that the efficiency of the computer ……..
A. will soon make it possible for the man to be served by robots
B. depends on the speed with which the data are fed
C. can best be appreciated in the decision-making positions
D. is the result of its being concentrated on one task at a time 6. The author feels that the computers ……..
A. are becoming unaffordable as they get more advanced
B. have contributed immensely to the improvement of living standards
C. have been unnecessarily overrated D. will be a major force behind all future progress
The dramatic growth of world's population in the twentieth
century has been on a scale without parallel in human society. Most of this growth has occurred
since 1950 and is known as "population explosion". Between 1950 and 1980 the world
population increased from 2.5 to over 4 billion and by the end of the century, this figure will
have risen to at least 6 billion. Growth of this size cannot continue indefinitely. Recent forecasts
suggest that the total population will level out at between 10 and 15 billion in the mid twenty-
first century. Already there are encouraging signs that the rate of increase in many less
developed countries is beginning to slow down.
7. According to the passage, at no period in Human history has there been
A. so much consensus among nations concerning the population of the world.
B. a sharp decline in population like the one since 1980.
C. a universal fear about the future of man
