caused wide public concern in many places of world.

　　这一现象在全世界许多地方已引起了广泛关注。

　　72. many parents believe that additional educational activities enjoy obvious advantage. by extra studies， they maintain， their children are able to obtain many kinds of practical skills and useful knowledge， which will put them in a beneficial position in the future job markets when they grow up.

　　许多家长相信额外的教育活动有许多优点，通过学习，他们的孩子可以获得很多实践技能和有用的知识，当他们长大后，这些对他们就业是大有好处的。

　　73. in the first place， extra studies bring about unhealthy impacts on physical growth of children. educational experts point out that， it is equally important to take some sport activities instead of extra studies when children have spent the whole day in a boring classroom.

　　首先，额外的学习对孩子们的身体发育是不利的。教育专家指出，孩子们在枯燥的教室里呆了一整天后，从事一些体育活动，而不是额外的学习，是非常重要的。

　　74. children are undergoing fast physical development; lack of physical exercise may produce disastrous influence on their later lif

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