In Europe, schoolchildren devote time during each school day to calisthenics. North American schools rarely offer a daily calisthenics program. Tests prove that North America children are weaker, slower, and shorter-winded than European children. We must conclude that North American children can be made physically fit only if they participate in school calisthenics on a daily basis.
Which one of the following is assumed in the passage?
A. All children can be made physically fit by daily calisthenics.
B. All children can be made equally physically fit by daily calisthenics.
C. Superior physical fitness produces superior health.
D. School calisthenics are an in indispensable factor in European children’s
E. North American children can learn to eat a more nutritious diet as well as to exercise daily.
答案d,求指教作者: JUNO1031 时间: 2012-8-31 21:31
Necessary assumption. Use negation.
If you negate D), you have:
School calisthenics are NOT an in indispensable factor in European
children’s superior physical fitness.
If this is the case, then school calisthenics is not a necessary
factor in European's superior physical fitness. Likewise, the
school calisthenics is not a necessary factor in American
children's physical fitness. The conclusion of the passage falls
apart. Thus, D) is the correct answer.
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