分析 这篇文章的主题是来自记忆的数学.在这份研究中孩子们把计算器放在一边,是因为他们能回忆起基础的数学事实,通过混合乘法表顺序的训练有助于把数学学得更好.学家希望利用这项研究开发帮助各级孩子学习数学的新策略.混合乘法表顺序的训练保持大脑活跃,保持这些训练,你可能会立刻成为一个数学天才.
解答 答案:52.C 细节理解题.根据第二段第二行The quicker kids can recall basic math facts,the easier it is for them to solve more difficult math problems.和After a certain amount of time spent practicing math,kids can put away the calculator(计算器).孩子们可以回忆起基本的数学事实,越快越容易解决更困难的数学问题.和一定的时间练习数学之后,孩子们可以把计算器抛弃.可知在这份研究中孩子们把计算器放在一边是因为他们能回忆起基础的数学事实,故选C.
53.D 猜测词义题.根据第四段第二句Rather than using their fingers to count,or scrawling out equations(列算式)on a piece of paper,the students pulled the answers from memory.而不是使用他们的手指计数,或草草把方程写在一张纸上,学生把答案储存.可知第四段中"fact retrieval"的过程意思是按照他们所记忆的解决问题,故选D.
54.C 细节推理题.故据最后一行Mixing up the order keeps the brain active.Keep these trainings up,and you may be a math whiz in no time.混合乘法表顺序的训练保持大脑活跃,保持这些训练,你可能会立刻成为一个数学天才.可知从这份研究中我们知道通过混合乘法表顺序的训练有助于把数学学得更好.故选C.
55.A 主旨归纳题.根据整篇文章内容及其开头All the time you spent memorizing multiplication tables(乘法表)may have made you a better mathematician,according to a new study.A team of scientists from Stanford University,in California,have shown how the brain reorganizes itself as kids learn math.你花费所有的时间背乘法表会让你更好成为数学家,根据一项新的研究.在加利福尼亚的一个科学家团队,从斯坦福大学,显示大脑如何进行自我重组作为孩子学习数学.可知这篇文章的最佳题目是来自记忆的数学.故选A.
点评 本文中长句较多,一时很难读懂句子含义,注意多读几遍,不要强求非得理解一词一句的含义,能把握文章大意就行.瞻前顾后,仔细推敲,确定最佳答案.
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