英语 英语 日语 日语 韩语 韩语 法语 法语 德语 德语 西班牙语 西班牙语 意大利语 意大利语 阿拉伯语 阿拉伯语 葡萄牙语 葡萄牙语 越南语 越南语 俄语 俄语 芬兰语 芬兰语 泰语 泰语 泰语 丹麦语 泰语 对外汉语

【英语时差8,16】蚯蚓(上)

时间:2015-11-20 07:33来源:互联网 提供网友:yajing   字体: [ ]
特别声明:本栏目内容均从网络收集或者网友提供,供仅参考试用,我们无法保证内容完整和正确。如果资料损害了您的权益,请与站长联系,我们将及时删除并致以歉意。
    (单词翻译:双击或拖选)

 Charles Darwin is best known for his studies of evolution by means of natural and sexual selection, but did you know he was also a pioneer in the study of earthworms? After watching an earthworm s-l-o-w-l-y drag a leaf into its burrow1, Darwin became fascinated by these unassuming creatures. He began an exhaustive study of worm behavior, sensory2 abilities and digestion3. His book on worms was the first to describe the enormous impact of earthworms on our lives. Darwin noticed that a thick layer of charcoal4 and cinders5 that he’d spread across a large field two years earlier was now uniformly covered by several inches of earth. He surmised6 that what appeared to be the “sinking” of the charcoal layer was actually the result of earthworm “castings.” Earthworms swallow soil, extract nutrients7 from it, then excrete the rest up onto the surface. These excretions—small dark mounds8 of fine dirt you may see dotting the ground—are called castings.


点击收听单词发音收听单词发音  

1 burrow EsazA     
vt.挖掘(洞穴);钻进;vi.挖洞;翻寻;n.地洞
参考例句:
  • Earthworms burrow deep into the subsoil.蚯蚓深深地钻进底土。
  • The dog had chased a rabbit into its burrow.狗把兔子追进了洞穴。
2 sensory Azlwe     
adj.知觉的,感觉的,知觉器官的
参考例句:
  • Human powers of sensory discrimination are limited.人类感官分辨能力有限。
  • The sensory system may undergo long-term adaptation in alien environments.感觉系统对陌生的环境可能经过长时期才能适应。
3 digestion il6zj     
n.消化,吸收
参考例句:
  • This kind of tea acts as an aid to digestion.这种茶可助消化。
  • This food is easy of digestion.这食物容易消化。
4 charcoal prgzJ     
n.炭,木炭,生物炭
参考例句:
  • We need to get some more charcoal for the barbecue.我们烧烤需要更多的碳。
  • Charcoal is used to filter water.木炭是用来过滤水的。
5 cinders cinders     
n.煤渣( cinder的名词复数 );炭渣;煤渣路;煤渣跑道
参考例句:
  • This material is variously termed ash, clinker, cinders or slag. 这种材料有不同的名称,如灰、炉渣、煤渣或矿渣。 来自《简明英汉词典》
  • Rake out the cinders before you start a new fire. 在重新点火前先把煤渣耙出来。 来自《简明英汉词典》
6 surmised b42dd4710fe89732a842341fc04537f6     
v.臆测,推断( surmise的过去式和过去分词 );揣测;猜想
参考例句:
  • From the looks on their faces, I surmised that they had had an argument. 看他们的脸色,我猜想他们之间发生了争执。
  • From his letter I surmised that he was unhappy. 我从他的信中推测他并不快乐。 来自《简明英汉词典》
7 nutrients 6a1e1ed248a3ac49744c39cc962fb607     
n.(食品或化学品)营养物,营养品( nutrient的名词复数 )
参考例句:
  • a lack of essential nutrients 基本营养的缺乏
  • Nutrients are absorbed into the bloodstream. 营养素被吸收进血液。 来自《简明英汉词典》
8 mounds dd943890a7780b264a2a6c1fa8d084a3     
土堆,土丘( mound的名词复数 ); 一大堆
参考例句:
  • We had mounds of tasteless rice. 我们有成堆成堆的淡而无味的米饭。
  • Ah! and there's the cemetery' - cemetery, he must have meant. 'You see the mounds? 啊,这就是同墓,”——我想他要说的一定是公墓,“看到那些土墩了吗?
本文本内容来源于互联网抓取和网友提交,仅供参考,部分栏目没有内容,如果您有更合适的内容,欢迎点击提交分享给大家。
------分隔线----------------------------
顶一下
(0)
0%
踩一下
(0)
0%
最新评论 查看所有评论
发表评论 查看所有评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
验证码:
听力搜索
推荐频道
论坛新贴