天津市蓟县2016届高考英语一轮阅读理解专题选练（6）_高考复习指南

　　A. Because their spine is in active use.

　　B. Because they are more easily affected by gravity.

　　C. Because they keep growing backwards.

　　D. Because their spine becomes more bent.

　　48．Which of the following statements about our brain is true?

　　A. In the long run, our brain probably works harder than our heart.

　　B. When our brain senses the spinning, we will feel dizzy.

　　C. The brains of the other mammals are as complex as those of humans.

　　D. Our feelings and emotions come from the most developed area in our brain.

　　49．What is the main purpose of the selection?

　　A. To give advice on how to stay healthy.

　　B. To provide information about our body.

　　C. To challenge new findings in medical research.

　　D. To report the latest discoveries in medical science.

　　【要点综述】本文是一篇常见的应用文，主要向读者介绍了与我们人体相关的一些知识和信息。

　　46．D　考查细节理解。从第一则中的“…it's more of a dark reddish purple colour.”可知，血液应该是深紫红色，所以答案选D项。

　　47．D　考查细节理解。从第四则中的“They simply lose height as their spine(脊柱) becomes shorter and more curved due to disuse…”可知，由于脊柱的弯曲，所以导致老年人看起来有点矮了，所以答案选D项。

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