Conventional wisdom has it that concern for the environment is a luxury only the rich world can afford; that only people whose basic needs for food and shelter have been met can start worrying about the health of the planet. This survey will argue that developing countries, too, should be thinking about the environment. True, in the rich countries a strong environmental movement did not emerge until long after they had become industrialized, a stage that many developing countries have yet to reach. And true. many of the developed world’s environmental concerns have little to do with immediate threats to its inhabitants’ well-being. People worry about whether carbon-dioxide emissions might lead to a warmer climate next century, or whether genetically engineered crops might have unforeseen consequences for the ecosystem. That is why, when rich world environmentalists’ campaign against pollution in poor countries, they are often accused of naivety. Such countries,
A. analyzing the difference between the environmental problems in rich and poor countries
B. arguing why developing countries should take immediate action to deal with their environmental problems
C. demonstrating how serious damage pollution can cause to a country’s economic development
D. explaining why the developed world’s environmental concerns have little to do with immediate threats
Predictions of many robots in industry have yet come true. For ten years or more, manufacturers of big robots have explained how their machines can make industry mom competitive and productive. The maker for (21) robots is oversupplied now, and the driving force of the robotics(机器人学) revolution is (22) to be with makers of machines that handle a few kilos at most.
"Heavy-robot manufacturers are in some difficulty (23) finding ustomer. They are offering big (24) just to get in the door. There has been a (25) growth everywhere in the numbers of robots, so we admit we are either deceiving (26) or that the market is slowly growing. "said John Reekie, chairman of Colen botics. "The following things must happen (27) the robotics revolution to occur. We must achieve widespread robot literacy(文化), (28) there has been a computer (29) program, there must be a robot prices. (30) , some kind of arti
A. ourselves
B. customers
C. companies
D. us
In 1915 Einstein made a trip to Gottingen to give some lectures at the invitation of the mathematical physicist David Hilbert. He was particularly eager -- too eager, it would turn (62) -- to explain all the intricacies of relativity to him. The visit was a triumph, and he said to a friend excitedly, "I was able to (63) Hilbert of the general theory of relativity."
(64) all of Einstein’s personal turmoil (焦躁) at the time, a new scientific anxiety was about to (65) . He was struggling to find the right equations that would (66) his new concept of gravity, (67) that would define how objects move (68) space and how space is curved by objects. By the end of the summer, he (69) the mathematical approach he had been (70) for almost three years was flawed. And now there was a (71) pressure. Einstein discovered to his (72) that Hilbert had taken what he had learned from Einstein’
A. casually
B. violently
C. coarsely
D. furiously
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