If it were only necessary to decide whether to teach elementary science to everyone on a mass basis or to find the gifted few an

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问题     If it were only necessary to decide whether to teach elementary science to everyone on a mass basis or to find the gifted few and take them as far as they can go, our task would be fairly simple. The public school system, however, has no such choice, for the jobs must be carried on at the same time. Because we depend heavily upon science and technology for our progress, we must produce specialists in many fields. Because we live in a democratic nation, whose citizens make the policies for the nation, large numbers of us must be educated to understand, to support, and when necessary, to judge the work of experts. The public school must educate both producers and users of scientific services.
    In education, there should be a good balance among the branches of knowledge that contribute to effective thinking and wise judgment. Such a balance is defeated by too much emphasis on any other field. This question of balance involves not only the relation of the natural sciences, the social sciences, and the arts but also relative emphasis among the natural sciences themselves.
    Similarly, we must have a balance between current and classical knowledge. The attention of the public is continually drawn to the discovery of new knowledge; it should not be allowed to turn our attention away from the sound, established materials that form the basis of courses for beginners.
According to the 1st paragraph, the task of education is fairly complicated because______ . (  )

选项 A、the public school has no choice of what to teach
B、it is difficult to choose what to teach in public schools
C、the current public school system is too complex to be understood
D、the educators have to take care of both ordinary and gifted students

答案D

解析 细节题。根据第一段的第1句话“If it were only necessary todecide whether…”可以得出教学工作的复杂性是因为学生水平的参差不齐,老师必须照顾到不同水平的学生的接受能力。
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