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SSS 2009-11-26

时间:2010-05-19 03:27来源:互联网 提供网友:mark@li   字体: [ ]
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    (单词翻译:双击或拖选)

Roughly 1,000 years ago, Europe enjoyed several centuries of balmier average temperatures. Dubbed1 the "Medieval Warm Period," it was the last time before the present that agriculture could flourish in Greenland. This era also provided fodder2 for countless3 misunderstandings about the nature of present day global warming.

 

New research shows that the MWP, as it is affectionately known in acronym-happy science circles, as well as the "Little Ice Age" that almost immediately followed it were likely the result of fluctuations4 in the sun's strength and the frequency of volcanic5 eruptions6, among other natural causes.

 

Cores drilled from ancient ice sheets as well as of the coral reef and lake sediment7 varieties show that at the same time as Europe enjoyed average temperatures as warm as today, the tropical Pacific was unusually cold. This suggests that natural cycles forced these climate anomalies.

 

Unfortunately, neither the sun nor other natural cycles can entirely8 explain the recent warming trend that has brought agriculture back to coastal9 Greenland. To date, the only explanation that matches those observations are a concurrent10 rise in greenhouse gas concentrations in the atmosphere. 

 

CO2 and its peers are now responsible for trapping an extra three watts11 per square meter of planet. And if that continues, the MWP will end up looking like an ice age. 
 


点击收听单词发音收听单词发音  

1 dubbed dubbed     
v.给…起绰号( dub的过去式和过去分词 );把…称为;配音;复制
参考例句:
  • Mathematics was once dubbed the handmaiden of the sciences. 数学曾一度被视为各门科学的基础。
  • Is the movie dubbed or does it have subtitles? 这部电影是配音的还是打字幕的? 来自《简明英汉词典》
2 fodder fodder     
n.草料;炮灰
参考例句:
  • Grass mowed and cured for use as fodder.割下来晒干用作饲料的草。
  • Guaranteed salt intake, no matter which normal fodder.不管是那一种正常的草料,保证盐的摄取。
3 countless 7vqz9L     
adj.无数的,多得不计其数的
参考例句:
  • In the war countless innocent people lost their lives.在这场战争中无数无辜的人丧失了性命。
  • I've told you countless times.我已经告诉你无数遍了。
4 fluctuations 5ffd9bfff797526ec241b97cfb872d61     
波动,涨落,起伏( fluctuation的名词复数 )
参考例句:
  • He showed the price fluctuations in a statistical table. 他用统计表显示价格的波动。
  • There were so many unpredictable fluctuations on the Stock Exchange. 股票市场瞬息万变。
5 volcanic BLgzQ     
adj.火山的;象火山的;由火山引起的
参考例句:
  • There have been several volcanic eruptions this year.今年火山爆发了好几次。
  • Volcanic activity has created thermal springs and boiling mud pools.火山活动产生了温泉和沸腾的泥浆池。
6 eruptions ca60b8eba3620efa5cdd7044f6dd0b66     
n.喷发,爆发( eruption的名词复数 )
参考例句:
  • There have been several volcanic eruptions this year. 今年火山爆发了好几次。 来自《简明英汉词典》
  • Over 200 people have been killed by volcanic eruptions. 火山喷发已导致200多人丧生。 来自辞典例句
7 sediment IsByK     
n.沉淀,沉渣,沉积(物)
参考例句:
  • The sediment settled and the water was clear.杂质沉淀后,水变清了。
  • Sediment begins to choke the channel's opening.沉积物开始淤塞河道口。
8 entirely entirely     
ad.全部地,完整地;完全地,彻底地
参考例句:
  • The fire was entirely caused by their neglect of duty. 那场火灾完全是由于他们失职而引起的。
  • His life was entirely given up to the educational work. 他的一生统统献给了教育工作。
9 coastal WWiyh     
adj.海岸的,沿海的,沿岸的
参考例句:
  • The ocean waves are slowly eating away the coastal rocks.大海的波浪慢慢地侵蚀着岸边的岩石。
  • This country will fortify the coastal areas.该国将加强沿海地区的防御。
10 concurrent YncyG     
adj.同时发生的,一致的
参考例句:
  • You can't attend two concurrent events!你不能同时参加两项活动!
  • The twins had concurrent birthday. 双胞胎生日在同一天。
11 watts c70bc928c4d08ffb18fc491f215d238a     
(电力计量单位)瓦,瓦特( watt的名词复数 )
参考例句:
  • My lamp uses 60 watts; my toaster uses 600 watts. 我的灯用60瓦,我的烤面包器用600瓦。
  • My lamp uses 40 watts. 我的灯40瓦。
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TAG标签:   SSS  sediment
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