托福听力课外资料练习：科学美国人60秒刺蝽捕食蜘蛛相关内容分享
- 2017年07月21日14:50 来源：小站整理
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在托福听力考试的备考过程中，科学美国人60秒相信大家一定用得比较多，那么大家平时是如何利用这个课外资料的呢?这里小编整理了科学美国人60秒：刺蝽捕食蜘蛛相关的内容分享，大家一起来学习一下吧。
科学美国人60秒听力练习：刺蝽捕食蜘蛛
科学美国人60秒英文文本
The "assassin bug" lures spiders by mimicking the vibrations created by exhausted prey in the spider's web. Christopher Intagliata reports
Toss a piece of leaf onto a spiderweb. The spider is indifferent. Because leaves don't squirm like captured flies. But Australia's "assassin bug" turns the tables on spiders. It exploits their keen sense for vibrations by mimicking the movements of prey—luring unwitting spiders into striking range.
Researchers observed how spiders reacted to various visitors to their webs—like leaf fragments, courting males, prey like flies, and the assassin bugs. The spiders ignored leaves, and assumed mating position for males. But they approached assassin bugs just as if they were investigating a juicy fly.
Then the researchers analyzed the frequency, duration and amplitude of each visitor's vibrations. And they found that assassin bug's vibes most closely matched some of those of prey. When prey struggle violently, spiders rush to subdue them—a potentially dangerous situation for assassin bugs. So the bugs have learned to gently pluck the silk strands, to mimic only the unthreatening leg twitches of exhausted prey.
The research is in the journal Proceedings of the Royal Society B. [Anne Wignall and Phillip Taylor, "Assassin bug uses aggressive mimicry to lure spider prey"]
The assassin bug’s choice of vibrations maximizes the chances that the spider, while still behaving like the hunter, becomes the hunted.
科学美国人60秒词汇中文翻译：
1. assassin bug 刺蝽
2. mimic vt.摹拟
3. vibration n.颤动;振动;摇动
4. lure vt.吸引，引诱
5.courting 求偶
6. amplitude n.[物]振幅
7. subdue vt.制服，使顺从，征服;
8. strand silk 丝条
9. mimicry n.模仿，(动物等)拟态伪装
以上就是小编为大家整理的科学美国人60秒：刺蝽捕食蜘蛛的文本以及翻译，大家练习的时候还可以找来音频资料一起练习，效果定会更好。最后，小编预祝大家托福考试能取得理想的成绩。
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