On the other hand, though, if a child is left alone too much, or without any learning opportunities, he loses his natural enthusiasm(热情) for life and his desire to find out new things for himself.(Passage 2)

【参考答案】

然而，另一方面，如果一个孩子经常独处，或者没有任何学习机会，他会丧失自己对于生活的自然的热情，以及自己探索新事物的愿望。