We are now so abusing the Earth that it may rise and move back to the hot state it was in fifty-five million years ago, and if it does, most of us, and our descendants, will die. -James Lovelock, leading climate expert and... T Homerdixon 被引量: 6发表: 2010年 Gaia and the...
How the Laughs Started 16million Years AgoRead the full-text online article and more details about How the Laughs Started 16million Years Ago.Daily Mail (London)
根据第一段的"Sixty-six million years ago,nearly 75%of the earth's animals—both on land and in water,suddenly died out at the same time."(六千六百万年前,地球上近75%的动物——无论是陆地动物还是水中动物,都同时突然灭绝。)因此75%都灭绝,约25%还活着。故选C。(2)细节理解题。根据第三段的...
C. For about 40 million years. D. For about 17 million years.10. The underlined word "preserved" in Paragraph 4 probably means“ A A. saved B. disappeared C. covered D. recorded11. What is the text mainly about? C A. The jungles 200 million years ago. B. The development of ...
and love. The first section starts roughly 200 million years ago, and each successive segment jumps to the time scientists believe that trait first appeared in our evolutionary calendar, Bohannon offering up at the start of each chapter what she calls an “Eve”, a hypothesized (or mor...
. They got smaller by an average of 14 percent. During our current warming, temperatures may not rise as much as they did 56 million to 54 million years ago. But during our lifetime we will likely see noticeable warmer climates. 33. Which of the following is TRUE according to the text...
A. The jungles 200 million years ago. B. The fossils which show us what dinosaurs looked like. C. Dinosaurs who ruled the Earth for about 150 million years. D. The reason why dinosaurs die out. 4. Where can we probably read the text? A. In a story book. B. In a travel guide....
Imagine a warm spring day 66 million years ago. These could have been the very last moments of the dinosaur er a when a city-sized asteroid(小行 )struck Earth, killing off three quarters of all species on the planet. According to a study published in Nature on 23 February, the asteroid...
Imagine a warm spring day 66 million years ago. Fish would have been swimming in the rivers in an area that’s now North Dakota in the US. Seconds later, the peace was ended by destruction. These could have been the very last moments of the dinosaur era when a city-sized asteroid (小...
Tyrannosaurus Rex3Over 65 million years ago, when dinosaurs ruled the earth and mammals were just small, rodent-like creatures, the undisputed (毫无的)"king" of the dinosaurs was the Tyrannosaurus rex. Evidence gathered by paleontologists shows that the T. rex, as it is also called, was at...