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Dinosaurs and Birds

时间:2005-04-26 16:00:00

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50 恐龙和鸟:谁是谁的祖先?

DATE=5-23-01
TITLE=SCIENCE REPORT - Dinosaurs2 and Birds
BYLINE=Mario Ritter 

(Start at 59")This is the VOA Special English Science Report. 
A debate has continued in the scientific community concerning the (1) ancestors of modern birds. Some scientists believe birds developed from the ancient creatures called (2) dinosaurs. Others believe birds developed separately. 
A recent discovery seems to support the idea that birds developed from dinosaurs. Nature magazine has published a report by Chinese and American researchers.  It describes the first clear evidence of a dinosaur1 with feathers.  Ji Qiang of the Chinese (3) Academy of (4) Geological Sciences in Beijing and Mark Norell of the American Museum of Natural History in New York wrote the report. 
(5)Fossils are the mineral remains3 of bones buried millions of years ago. The fossil of a feather-covered dinosaur was discovered in Liaoning Province in northeastern China. Several fossils of dinosaurs with feathers have been found in this area of China. But, it is not always easy to confirm fossil discoveries.
Last year, we reported that a fossil dinosaur with feathers was found to be false. But, this most recent discovery appears to be (6) confirmed. 
The dinosaur was about a meter long. It walked on two legs and had a feather-like covering all over its body. The small dinosaur did not have wings and could not fly.  But some of its bone structure was similar to that of birds. The animal lived about one- hundred- thirty- million years ago.
Hans-Dieter Sues of the Royal Ontario Museum in (7) Toronto, Canada says the fossil evidence shows that non-flying dinosaurs had a feather covering. Mister Sues says the most recent fossils (8)provide strong evidence that birds developed from dinosaurs. 
Both Chinese and American researchers now believe that feathers developed to keep dinosaurs warm. They believe that some dinosaurs may have been warm-blooded like mammals and birds are today. For many years, (9)paleontologists studying dinosaurs have thought that some dinosaurs may have been warm-blooded. Now the confirmed discovery of a non-flying dinosaur with feathers appears to support that theory.
The theory that feathers covered many dinosaurs requires a great change in the way we imagine those ancient creatures. In the Latin language, "dinosaur" means "terrible (10)lizard."  Instead, dinosaurs may have looked like terribly large birds. 
This VOA Special English Science Report was written by Mario Ritter.

注释:
(1) ancestor[ 5AnsistE ]n.祖先, 祖宗
(2) dinosaur[ 5dainEsC: ]n.恐龙
(3) academy[ E5kAdEmi ]n. (高等)专科院校, 研究院
(4) geological[ dViE5lCdVikEl ]adj.地质学的, 地质的
(5) fossil[ 5fCsl ]n.化石, 僵化的事物adj.化石的, 陈腐的
(6) confirmed[ kEn5fE:md ]adj.证实的, 惯常的
(7) Toronto[ tE5rCntEu ]n. 多伦多(加拿大)
(8) provide[ prE5vaid ]v.供应, 供给
(9) paleontologist[ 7pAliCn5tClEdVist]n.古生物学家
(10) lizard[ 5lizEd ]n.[动]蜥蜴


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点击收听单词发音收听单词发音  

1 dinosaur xuSxp     
n.恐龙
参考例句:
  • Are you trying to tell me that David was attacked by a dinosaur?你是想要告诉我大卫被一支恐龙所攻击?
  • He stared at the faithful miniature of the dinosaur.他凝视著精确的恐龙缩小模型。
2 dinosaurs 87f9c39b9e3f358174d58a584c2727b4     
n.恐龙( dinosaur的名词复数 );守旧落伍的人,过时落后的东西
参考例句:
  • The brontosaurus was one of the largest of all dinosaurs. 雷龙是所有恐龙中最大的一种。 来自《简明英汉词典》
  • Dinosaurs have been extinct for millions of years. 恐龙绝种已有几百万年了。 来自《简明英汉词典》
3 remains 1kMzTy     
n.剩余物,残留物;遗体,遗迹
参考例句:
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。

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