分析 文章大意:
这篇文章介绍了一项对笑的新研究,和以往人们的观点不同的是,研究人员发现笑是人类社会化的反应,而且动物也有相同的情况.
所有人都知道微笑对我们的身体及精神都有很大的帮助作用,但事实上我们并不清楚大笑对我们有好处的原因.
笑从本质上来说是社会性的东西,不只是在人类中才有,动物中也有.
因此,科学家研究老鼠是为了看在老鼠笑时会产生什么,通过研究发现大笑时会产生一种化学物质,其作用相当于抗抑郁药.
解答 52.B,词意猜测题.文中提到"Jeffrey Burgdorf has found that laughter in rats produces a chemical that acts as an antidepressant"教授发现大笑时会产生一种化学物质,其作用相当于抗抑郁药,由此可知人们已经弄清楚了大笑时大脑的反应,由此确定figure out是解决的意思,故选B.
53.C,细节理解题.根据文中信息Northwestern University biomedical engineering professor,Jeffrey Burgdorf has found that laughter in rats produces a chemical that acts as an antidepressant(抗抑郁药).可知科学家研究老鼠是为了看在老鼠笑时会产生什么,故选C.
54.D,细节理解题.根据文中信息"Laughter above all else is a social thing,"says Baltimore neuroscientist(神经科学家),Robert Provine,who has studied laughter for many years.可知笑从本质上来说是社会性的东西,故选D.
55.D,主旨大意题,文中提到"Although most people believe that laughter is one of the nature's great treatments for a whole range of mental and physical diseases,it is still a serious scientific subject that researchers are trying to figure out."所有人都知道微笑对我们的身体及精神都有很大的帮助作用,但事实上我们并不清楚大笑对我们有好处的原因,而下问通过一系列的实验及推论都在说明大笑的好处,由此可以判定答案为D,为什么笑如此重要.
点评 对于阅读表达题,一定要记得首先通读全文,了解文章大意,然后再根据文章关键词,关键句,掌握细节问题,并进行推理判断,再去回答具体的问题.
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