American’s genius with high technology may have put men on the moon, but there is growing doubt about its ability to solve human problems closer to home.
In fact, a slight but significant change from purely technological solutions is already under way as scientists insist that answers to the world’s problems will not come from an attractive exhibition of electronics and machines. Instead, as they see it, solutions must develop from a better understanding of the humans that drive the system and from a fuller appreciation of the limits and potential(潜能) of the earth’s resources.
What this means is an increased emphasis on the life and earth sciences, on sociology, psychology, economics and even philosophy.
More and more of the best minds in science, particularly young researchers, are being drawn into these developing fields.
All this is not to say that technological creativity will not play a critical role in solving energy and food shortages, or that answers to environmental difficulties will not come from further advances in the same technologies that may have helped cause the problems.
Where the real challenge lies, in the view of the new generation of scientists, is in finding ways to produce goods and meet the world’s needs, using less of the raw materials that are becoming short.
Which of the following would the author probably agree with?

A．The environment crisis will not be solved unless we stop using virgin（原始）materials.

B．In scientific research, a higher priority（优先）should be given to understanding all living systems.

C．Exploration of outer space will finally lead to an improvement on human living conditions.

D．U. S. high-technology companies are welcoming this new change in scientific research.

Which of the following best expresses the main idea?

A．a growing number of Americans are doubtful about what high technology can do in solving the world’s problems.

B．Many scientists are beginning to believe that the better understanding of human beings will play a more decisive role in solving the world’s problems.

C．More and more young scientists are trying their best to find new ways to solve the world’s problems.

D．Technological creativity will still play a very important part in solving the world’s problems.

Young scientists demand that in order to satisfy human needs ________.

A．existing products be improved.

B．more complex machines and electronic equipment be designed.

C．ways be found to produce better goods using fewer raw materials.

D．any new invention and innovation be encouraged in technology

In the passage “Human problems” or “world problems” refers mainly to ______.

A．global food shortage	B．resources depletion（耗尽）
C．environmental pollution	D．all of the above

The author states all the following CXCEPT that _______.

A．the development of present techniques cannot provide any answers to today’s problems.

B．an increasing number of young scientists are taking a great interest in biological and social sciences.

C．many scientists have come to understand the limits of natural resources.

D．many scientists argue that high technology is something but not everything.