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  3. When a magazine for high-school students asked its readers what life would be like in twenty years, they said: machines would be

When a magazine for high-school students asked its readers what life would be like in twenty years, they said: machines would be

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问题      When a magazine for high-school students asked its readers what life would be like in twenty years, they said: machines would be run by solar power. Buildings would rotate so they could follow the sun to take maximum advantage of its light and heat. Walls would "radiate light" and "change color with the push of a button". Food would be re placed by pills. School would be taught by electrical impulse while we slept. Cars would have radar. Does this sound like the year 2000? Actually the article was written in the 1958 and the question was, "What will life be like in 19787"
     The future is much too important to simply guess about, the way the high school students did, so experts are regularly asked to predict actually. By carefully studying the present, skilled businessmen, scientists, and politicians are supposedly able to figure out in advance what will happen. But can they? One expert on cities wrote: cities in the future wouldn’t be crowded, but would have space and fields. People would travel to work in "airbuses", large all weather helicopters carrying up to 200 passengers. When a person left the airbus station, he could drive a coin-operated equipment with radar. The radar equipment of cars would make traffic accidents" almost unheard of". Does that sound familiar? If the expert had been accurate, it would, because he was writing in 1957. His subject was "The City of 1902".
     If the professionals sometimes sound like high-school students, it is probably because future study is still a new field. But economic forecasting, or predicting what the economy will be, has been around for a long time. It should be accurate and generally it is. But there have been some big mistakes in this field, too. In early 1929, most forecasters saw an excellent future on the stock market. In October of that year, the stock market had its worst losses ever, ruining thousands of investors who had put their faith in financial forecasters.
     One forecaster knew that predictions about the future would always be subject to significant errors. In 1957, H. J. Rand of Rad Corporation was asked about the year 2000. "Only one thing is certain," he answered. "Children born today will have reached the age of 43."
H. J. Rand’s prediction about the year 2000 shows that ______.
选项 A、it is easy to figure out in advance what will happen
B、it is difficult to figure out in advance what will happen
C、only professionals can figure out in advance what will happen
D、very few professionals can figure out in advance what will happen
答案B
解析 由文章最后一段第一句可知。预测未来可能导致大失误，因此，要预知未来会发生什么是很难的。
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