But the success of science, both itsintellectual excitement and its practical application, depends upon theself-correcting character of science. There must be a way of testing any valididea.it must be possible to reproduce any valid experiment. The character orbeliefs of scientists are irrelevant; all that matters is whether the evidencesupports their contentions. Arguments from authority simply do not count; toomany authorities have been mistaken too often. I would like to see these veryeffective scientific modes of thought communicated by the schools and the media;and it would certainly be an astonishment and delight to see them introducedinto politics. Scientists have been known to change their minds completely andpublicly when presented with new evidence of new arguments. I cannot recall thelast time a politician displayed a similar openness and willingness to change. 1. What does the passage mainly discuss? A.The rewards of intellectual excitement. B.Practical applications of an abstract theory. C.An important characteristic of science. D.Some similarities between politics and science. 2. What did the paragraph preceding thepassage most probably discuss? A.The scientific community. B.The achievements of science. C.Self-correction in science. D.Valid and invalid experiments. 3. According to the passage, if a scientistrepeats an experiment several times and does not produce similar result each time,the experiment must be______. A.extremely complex B. self-corrected C. incorrectly recorded D. invalid 4. According to the passage, which of thefollowing is most essential to scientists’ work? A.character. B. beliefs C. authority. D. evidence. 5. The author implies that in science,arguments from authority are_______. A.irrelevant B. complicated C. effective D. unreliable