据世界卫生组织统计，每年有1200万人过早地被心血管、脑血管疾病夺去了生命，心血管、脑血管疾病的死亡率为各种疾病死亡率之首，而“中风”则是心血管、脑血管疾病的元凶。如果用“养神3分钟”自我治疗预防，每年可使全世界少死300万人，一年也可使我国少死60万人，因为“中风”多发生在夜间，最危险时刻是醒来的“一刹那”。但有绝招可防这“一刹那”.即在苏醒时，养神3分钟，定可逢凶化吉。本文主要谈的是什么病（）
A.中风
B.高血压
C.心脏病
D.脑血管病
参考答案：A
解析：据提问知此题为表面主旨题。文中谈到“中风”是心血管、脑血管疾病的元凶，然后利用较大篇幅介绍如何预防中风的发生，所以本文主要谈的是“中风”，选择A项。B项“高血压”文中没有提及，无中生有；C、D项文段中都有提到，但主要还是为了引出文段的中心，即“中风”。故正确答案选A。
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| According to a team of Dutch scientists, walking backward helps people think more clearly. The study, published in the Washington-based Journal Psychological Science, 1 the ability of 38 men and women to quickly name the colors in which 2 words were displayed. 3 the tests, people were told to step four paces to the left, right, backward or forward. In a group of the trickier trials (ones where the words didn't relate in any way to the colors they were displayed in), performance was the 4 when the subjects stepped four paces backward. "Backward movement 5 to be a very powerful trigger to divide resources," conclude the authors, of Radboud University Nijmegen. "Thus, 6 you meet a difficult situation, stepping backward may increase your capability to 7 with it effectively." In case you were wondering 8 the researchers conducted such a crazy experiment to begin with: It's part of a larger field of study of the way that 9 movements change people's thinking or emotions. Flexing (弯曲) or extending (伸展) the arms, for example (the motions involved in either pulling or pushing) can make 10 more intending to like or dislike something. Pushing and backing away are 11 avoidance actions-such actions are "usually performed in the context of aversive conditions that 12 enhanced control in order to focus on some information and to clear negative results". | ||||
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