[单选题]

Which of the following is NOT MENTIONED in the third paragraph?（ ）

细节理解题。本题的问题是：第三段没有提到什么。因此需要仔细阅读第三段。第二句话“The pupils often work in groups: this gives them the opportunity to learn to cooperate to share, and the develop leadership skills.”指出经常以小组学习的学生们可以有机会学会合作、分享，以及培养领导能力。由此，可以分别对应到选项A、C。第三句话“They also learn how to cope with personal problems as well as learning how to think,……”指出学生们以小组学习可以学到如何处理个人问题，而且还可以学会如何思考，与选项B “reasoning abilities”思考能力相对应。所以，通过排除可以得到本题答案为D。文中只是说“The pupils learn from each other as well as from the teacher. ”而非“participate in teaching activities”。