Others thought that the dinosaurs disappeared simply because they became too big. They were too heavy to move without falling over. One theory is 63 a huge killer meteorite(陨星) hit the earth. The extinction of dinosaurs was possibly due to a rapid cooling of the 64 (earth) weather ...
These animals belong to a taxonomic group that shares the designation “squamate reptiles.”“Squamate” is derived from the Latin word “squamatus,” which means scaly, although these reptiles themselves don’t have scales. They belong to the infraorder Gekkota, a name thought to derive from th...
Why This Bizarre Bird in the Amazon Pretends to Be a Caterpillar As if to prove that we still have much to learn about the animal kingdom, a rarely encountered bird species… This Tiny Blue-Eyed Bird Was Once Thought to Be Extinct The blue-eyed ground dove is one of Brazil’s hid...
6. A 根 上一 “They thought crested ibises might be extinct.”和空后的“scientists found seven crested ibises”可知,科学家们以为朱鹮 可能灭绝了,后来又发现了七只,因此这是一 件幸运的事。 7. B 根据空前的“In order to protect crested ibises in the wild”可知,此处指为保护野生朱 鹮,中国...
A reintroduction of dodos to the ecosystem of the island,instead of just being a novelty, is thought to potentially bring benefits to the endemic(地方性的)plants and other animals that already live there in the long run.Having discovered the genetic code(基因序列) of extinct animals from ...
In 1979 the black footed ferret was thought to be extinct in the wild, but in 1981 a small population was discovered in Wyoming. A captive breeding program saw the species being reintroduced in several locations in North America. Although several thousands of black footed ferrets have been re...
The one specimen of this species that exists is stored in the World Museum in Liverpool. A bird with a spotted green plumage, genetic studies revealed it was a close relative of the dodo, and is thought to have lived in the South Pacific or the Indian Ocean. ...
It was a fine day today and the sun was bright. I visited Beijing Zoo with my classmate, He Song. The animals were so interesting that all the people loved them. When a bear asked for some food by waving its ann, a visitor threw something to it. At once I went up to him and sa...
解析 【解析】答案:extinct.become后面应该用形容 词,extinct是形容词,意思是“绝种的,灭绝的”。 故填extinct. 结果一 题目 In her life,my mother was always willing to offer gifts to others.The occasion never(1)___一weddings,birthdays,anniversaries or no occasion at all.She was always thinking...