例题：How many men would have considered the possibility of an apple falling up into the tree? Newton did because he was not trying to predict anything. He was just wondering. His mind was ready for the unpredictable. Unpredictability is part of the essential nature of research. If you don't have unpredictable things, you don't have research. Scientists tend to forget this when writing their cut and dried reports for the technical journals, but history is filled with examples of it.

　　The author asserts that scientists

　　[A]shouldn't replace scientific method with imaginative thought

　　[B]shouldn't neglect to speculate on unpredictable things

　　[C]should write more concise reports for technical journals

　　[D]should be confident about their research findings[1999年第68题]

　　[正确答案]B

　　反话正说：顾名思义，即文中用否定方式所来表述一定的内容，而选项中用肯定的方式把同样的意思再表达一遍。

　　例题：Few Americans attribute this solely to such obvious causes as a devalued dollar or the turning of the business cycle.

　　The author seems to believe the revival of the U.S. economy in the 1990s can be attributed to the.

　　[A]turning of the business cycle

　　[B]restructuring of industry

　　[C]improved business management

　　[D]success in education[2000年第54题]

　　[正确答案]A

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