You could （ ）from his appearance that he was upset.
A.restrain B.destroy C.discern D.obscure
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You could （ ）from his appearance that he was upset.
Science, in practice, depends far less on the experiments it prepares than on the preparedness of the minds of the men who watch the experiments. Sir Isaac Newton supposedly discovered gravity through the fall of an apple. Apples had been falling in many places for centuries and thousands of people had seen them fall . But Newton for years had been curious about the cause of the orbital motion of the moon and planets. What kept them in place? Why didn’t they fall out of the sky? The fact that the apple fell down toward the earth and not up into the tree answered the question he had been asking himself about those larger fruits of the heavens, the moon and the planet.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. In talking to some scientists, particularly younger ones, you might gather the impression that they find the “scientific method” a substitute for imaginative thought. I've attended research conferences where a scientist has been asked what he thinks about the advisability of continuing a certain experiment. The scientist has frowned, looked al the graphs, and said “the data are still inconclusive.” We know that, the men from the budget office have said, “but what do you think? Is it worthwhile going on? What do you think we might expect? The scientist has been shocked at having even been asked to speculate.What this amounts to, of course, is that the scientist has become the victim of his own writings. He has put forward unquestioned claims so consistent! That he not only believes them himself, but has convinced industrial and business management that they are true. If experiments are planned and carried out according to plan as faithfully as the reports in the science journals indicate, then it is perfectly logical for management to expect research to produce results in dollars and c
He plays tennis to the （ ）of all other sports.
One of the chief functions of education is to equip fbture citizens with all they require to take their place in adult society. Now adult society is made up of men and women, so how can a segregated school possibly offer the right sort of preparation for it? Anyone entering adult society after years of segregation can only be in fora shock.A co-educational school offers children nothing less than a true version of society in miniature.Boys and girls are given the opportunity to get to know each other, to learn to live together from their earliest years. They are put in a position where they can compare themselves with each other in terms of academic ability, athletic achievement and many of the extra-curricular activities which are part of school life. What a practical advantage it is to be able to put on a school play in which the male parts will be taken by boys and the female parts by girls!But perhaps the greatest contribution of co-education is the healthy attitude to life it encourages. Boys don’t grow up believing that women are mysterious creatures-airy goddesses, more like book-illustrations to a fairy-tale, than human beings. Girls don’t grow up imagining that men are romantic heroes. Years of living together at school dismiss such illusions. The awkward stage of adolescence brings into sharp focus some of the’ physical and emotional problems involved in growing up. These can better be overcome in a co-educational environment. When the time comes for the pupils to leave school, they are fully prepared to enter society as well-adjusted adults. They have already had years of experience in coping with many of the problems that face men and women.1.What does co-education offer to children?2.What does the word “segregated” (Para. 1) probably mean?3.According to the passage, what is one of the chief aims of education?4.Why don’t boys and girls in co-education have illusions about each other?
Fat cannot change into muscle （ ）muscle changes into fat
All the goods on this shelf are （ ）from Value Added Tax.