全国校区

全国报名咨询热线:400-609-9977

集团客服投诉热线:400-097-9266

首页 热门资讯 新闻资讯 雅思综合 雅思预测 雅思机经 雅思听力 雅思口语 雅思阅读 雅思写作 雅思词汇 雅思问答 雅思语法 雅思图书

首页 > 雅思 > 雅思资讯 > 雅思阅读 > 雅思阅读材料之蜈蚣有100只脚?

雅思阅读材料之蜈蚣有100只脚?

2014-01-21 14:01     作者 :    

阅读量:

Scientists, whether intentionally, or unintentionally, tripped us up when they named the centipede, one of the oldest creatures in existence.
 
Yes, centipede really does mean "100-footed," and yes, some centipedes actually do have 100 feet, but no, not all do. In fact, some centipedes have more than 100 feet, and some have as few as 30. Perhaps, mathematicians, not scientists, should have done the calculations, and should have named this member of the species "Myriapoda," Latin for 'many footed'. Yes, the millipede also belongs to this ancient species, but does it really have 1,000 feet, as its name implies? Doubtful.
 
The centipede emerges from eggs, laid in the open, with either a full set of legs, or with a starter set of seven pairs, and plays add-a-pair each time it sheds its skin, until it reaches maturity. These paired legs grow out of a segment of the centipede's flat, many jointed body, making them much easier to keep track of, and the centipede less likely to stumble as he forages for food by night. The sheer number of legs, however, may present a problem for the centipede by day, as it must safely tuck them in, when taking cover under rocks or rotting wood.
 
The 8 to 10 tropical varieties of centipede have little to fear in this regard, because this kind of centipede bears enough poison in its two claws to kill a small bird. The claws containing the poison, as with all other centipedes, are located, along with its two feelers, on the section next to the head.
 
以上就是新航道雅思频道为大家整理的雅思阅读材料之蜈蚣有100只脚?,希望对大家有帮助,更多资讯、资料请访问新航道雅思阅读频道 http://www.xhd.cn/ielts/yuedu/
 

 

相关文章 查看更多

雅思备考工具箱

热门活动 更多

热门课程 更多