Others ate leaves.(4).【答案】Before there were people in the world.【解析】根据短文句子“Before there were people in the world, there were dinosaurs.”可知在人类出现以前就存在恐龙了,故答案为: Before there were people in the world.(5).【答案】Yes, they can.【解析】根据短文句子“Some ...
Long long ago, there were lots of dinosaurs in the world. There were no people. It was warmer than today, and very wet (湿) in some places. Dinosaurs were in many sizes. Some were small. Some were big. And some were very, very big. Some dinosaurs could cat leaves. Some dinosaurs ...
Dinosaur is the common term referring to fossils of Saurischian and Ornithischian of the Diapsida subclass. Dinosaurs are a large family of reptiles with 900–1200 genera that lived approximately 65–225 million years ago. They have been studied for nearly 200 years since their first discovery in...
Scientists discover fossils in rocks all over the world. Studying fossils Helps them learn about dinosaurs. They study what dinosaurs looked like, where they lived,and what they ate. Fossils are the remains of plants or animals from long ago that have...
Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www.springernature.com/us). Scientific American maintains a strict policy of editorial independence in reporting developments in science to our...
on earth over 原句句意:恐龙生活在6000多万年前的世界上。in the world在世界上,也可以用on earth;more than超过,也可以用over;故答案为on;earth;over。结果一 题目 Dinosaurs lived in the world more than 60 million years ago. (同义句)Dinosaurs lived ___ ___ ___ 60 million years ago. 答案...
根据句意,第一句是一般过去时的一般疑问句,there后面是可数名词的复数形式,句首应填系动词Were.句子的肯定回答是:Yes,there were.第三句是一般现在时的陈述句,there be后面是可数名词的单数形式,系动词be要用单数形式is.根据第四句尾的in the future可知,句子时态是一般将来时,句子是一般疑问句,there前面要加助...
Dinosaurs have been found in every continent, but the world didn’t look like this in the Mesozoic Era! Dinosaur remains have been found on every continent. They’ve even been found in Antarctica, where scientists have found fossils of both plant-eating and meat-eating dinosaurs. ...
Walking with dinosaurs? Not in the real world.doi:10.1038/444680bA letter to the editor is presented in response to the article about the existence of dinosaurs.HurdGary S.NatureHurd G. S., 2006. Walking with dinosaurs? Not in the real world. Nature 444, 680....
Earth. The day 66 million years ago when the reign of the dinosaurs ended and the rise of mammals began. Very few dinosaur remains have been found in the rocks that record even the final few thousand years before the impact. To have a specimen from the cataclysm itself would be ...