分析 文章主要讲述了 Lentink's教授通过研究蜂鸟发现微型直升机桨叶在悬停效率为蜂鸟平均悬停效率.
解答 33.C 细节理解题.根据第二段"Now scientists have found that it is the ratio (比值) of the bird's wing length to its width that makes them so efficient."可知,它是比的鸟类的翅膀的长度,宽度,使他们如此有效;以及"He thinks that great steps could be made by studying wing aspect ratios-the ratio of wing length to wing width."他认为通过研究机翼纵横比机翼长度与机翼宽度的比值可以取得很大的进步.故选C.
34.D 细节理解题.根据文章内容 Lentink's 首先"tested wings from 12different species of hummingbirds,which he sourced from museums."测试了来自博物馆12种蜂鸟的翅膀;其次"Professor Lentink's team used the same machine to test the blades from an advanced micro-helicopter used by the UK's army."Lentink教授的研究小组用相同的机器从一个先进的微型直升机由英国军队使用的叶片;最后"They found that the micro-helicopter's blades are as efficient at hovering as the average hummingbirds."他们发现的微型直升机桨叶在悬停效率为蜂鸟平均悬停效率.故选D.
35.D 细节理解题,根据最后一段最后两句"He thinks that great steps could be made by studying wing aspect ratios-the ratio of wing length to wing width,Understanding these abilities and characteristics could be a benefit for robotics and will be the focus of future experiments."他认为通过研究机翼纵横比机翼长度与机翼宽度的比值可以取得很大的进步,所以了解蜂鸟的这些能力和特点可能是一个好处,将是未来的实验重点.故选D.
点评 本文是一个科教类阅读理解,题目涉及多道细节理解题,做题时结合原文和题目有针对性的找出相关语句进行仔细分析,结合选项选出正确答案.推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案,切忌胡乱猜测,一定要做到有理有据.
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