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听力文摘:昆虫是怎样喝水的?

时间:2020-09-24 07:56来源:互联网 提供网友:nan   字体: [ ]
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    (单词翻译:双击或拖选)

How Insects Drink?

昆虫是怎样喝水的?

A: I was sitting on my Porsche yesterday, having asoda, and a wasp2 picked its head into the can anddrink from my soda1. For the sugar i konw that's whyI drink soda. But the Garmin wondering about howdifferent insects drink. I mean insects need waterjust like the rest of us.

昨儿我坐在我的保时捷里,喝着汽水,一只黄蜂将头伸进了我的瓶子,喝起了我的汽水.我知道我喝汽水是为了(补充)糖分,但是Garmin(一种导航)好奇不同的昆虫都是怎样喝东西的呢?我的意思是昆虫也像我们一样需要水分。

B: You are right! Insects do need water. How they get their water depends a lot on their diets. Herbivorous insects, those that feed on plants, get most of their water from their preyfoodbecause plants contain a lot of water.

是这样的!昆虫确实需要水分。但是它们怎样饮水很大程度上是取决与他们的饮食习惯。对于那些以植物为食的食草性昆虫来说,大部分水分都是从食物中获取的,因为植物很有很多水分。

But carnivorous insects often have to get their water from somewhere other than their prey3, and often they'll go to plants for their water too, drinking from fruit maybe. Or they might sipfrom the morning dew or from raindrops or from edges of ponds or puddles4.

但是对于肉食性的昆虫来说,它们就的从其它地方获取水分,通常也是来自植物,或者水果。它们或许还会从晨露、雨水、池塘或者水坑边进水。

If they're blood suckers, they probably get their water from their food. It's worth noting thatnot all mouthparts are the same and this too affects the ways an insect is able to get water. There are basically two kinds of insect mouths.

如果是吸血类的,它们大概就是从食物中获取水分。值得一提的是,昆虫的口器是不一样的,这就大大影响了它们喝水的方式。昆虫的口器大概可分为两类。

There are chewers and suckers. Some chewers may have a difficult time trying to draw waterfrom a pond, whereas getting their water from chewing a leaf is simple.

它们便是咀嚼式口器及吸收式口器。一些咀嚼式口器在池塘边喝水可能会有困难,所以通过咀嚼叶子来获取水分会更简单。

Suckers, on the other hand, have a tube-like mouthpart called a proboscis5 that allows them toget liquid by sucking or lapping, whether from the nectar of flowers or from a soda can.

而吸收式口器则有一个管状叫做“喙”的部分,它可以让昆虫通过吸或舔的方式获得水分,不论是从花的花蜜中还是从汽水瓶都可以。

A: Or from my arm, right?

从我的手臂也行,对吧?

B: That's true.

是的!


点击收听单词发音收听单词发音  

1 soda cr3ye     
n.苏打水;汽水
参考例句:
  • She doesn't enjoy drinking chocolate soda.她不喜欢喝巧克力汽水。
  • I will freshen your drink with more soda and ice cubes.我给你的饮料重加一些苏打水和冰块。
2 wasp sMczj     
n.黄蜂,蚂蜂
参考例句:
  • A wasp stung me on the arm.黄蜂蜇了我的手臂。
  • Through the glass we can see the wasp.透过玻璃我们可以看到黄蜂。
3 prey g1czH     
n.被掠食者,牺牲者,掠食;v.捕食,掠夺,折磨
参考例句:
  • Stronger animals prey on weaker ones.弱肉强食。
  • The lion was hunting for its prey.狮子在寻找猎物。
4 puddles 38bcfd2b26c90ae36551f1fa3e14c14c     
n.水坑, (尤指道路上的)雨水坑( puddle的名词复数 )
参考例句:
  • The puddles had coalesced into a small stream. 地面上水洼子里的水汇流成了一条小溪。
  • The road was filled with puddles from the rain. 雨后路面到处是一坑坑的积水。 来自《简明英汉词典》
5 proboscis x1QzN     
n.(象的)长鼻
参考例句:
  • Its proboscis has got stuck to a lot of pollen.它的喙上粘了很多花粉。
  • It hovers in front of the flower,using its proboscis to look for nectar. 它在兰花前面飞来飞去, 用喙寻找花蜜.
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