賴世雄英語新聞聽力通 第17期:自認(rèn)是鳥的恐龍

(BBC News) American scientists have discovered a fossil of a duck-sized，flightless dinosaur，which was apparently covered in feathers.

(英國國家廣播公司報道)美國科學(xué)家發(fā)現(xiàn)了一個鴨子大小的化石，那是一只無法飛行的恐龍，身上很明顯布滿了羽毛。

The team believes that this prowes that feathers were developed for insulation，not flight.

研究小組相信，這證明動物長出羽毛的進(jìn)化目的是保溫，而不是飛行。

The scientists believe it means that modern-day birds are actually living dinosaurs.

科學(xué)家相信，這表示當(dāng)今的鳥類其實是活恐龍。

The fossil is believed to be of a dromaeosaur.

據(jù)信這件化石是一只奔龍。

It could mean experts have to rewrite natural history books.

這可能意味著專家必須改寫自然歷史書了。