Sapiens: A Brief History of Humankind 智人:人类简史 We tend tothink of mankind as the unique and inevitable masters of this Universe. In reality, we were not the only human species that existed on Earth, and most of our progress happened only in the recent past. In “Sapiens”, Yuval No...
B.Howtheenvironmentaffectsthelivingthingsontheearth.C.Whatkindofchemicalsarelessharmfultotheenvironment.D.Howwehumansmakethebestofchemicalstosavetheearth. 相关知识点: 试题来源: 解析 【答案】(1)猜测词义题。根据文章第一段Toalargeextent(程度),thephysicalformandthehabitsoftheearth'svegetationanditsanimal...
For the history of life on Earth, organisms have relied on the light of the sun, moon, and stars to find their way and schedule their lives. While the beginning of electric lighting in the late 19th century may have benefited humans, it has caused problems in the natural world. Among th...
There were humans long before there was history. Animals much like modernhumans first appeared about 2.5 million years ago. But for countless generationsthey did not stand out from the myriad other organisms with which they sharedtheir habitats. ...
Humans are the only species capable of controlling the biosphere (生物圈) on a large scale.5 In contrast, we are the only species that has conscious choice regarding our future and that of Earth's biodiversity. A. The situation is not the same everywhere, however. B. But this time it ...
A Timeline of the History of Life on Earth Humans have only been a species in the most recent chapter of the history of Earth. The Earth was formed 4.6 billion years ago, when the sun in our solar system first formed, creating enough gravitational pull to spin planets into orbit. But ...
All of you will be familiar with those educational graphics that put into stark perspective how tiny is our place in the Universe, how on a clock that began ticking with the origin of life, humans evolved less than a minute before midnight. And the time since Current Biology began, 25 yea...
For the history of life on Earth, organisms have relied on the light of the sun, moon, and stars to find their way and schedule their lives. While the beginning of electric lighting in the late 19th century may have benefited humans, it has caused problems in the natural world. Among th...
In this talk, I will briefly introduce the big history story, the history of the Universe. I will then discuss how we humans fit into that huge story and why our own species is beginning to transform planet earth in the Anthropocene Epoch. I will pan back over the whole history of plane...
Beginning of chemistry. 4.5 billion Formation of planet Earth. 3.8 billion Emergence of organisms. Beginning of biology. 6 million Last common grandmother of humans and chimpanzees. 2.5 million Evolution of the genus Homo in Africa. First stone tools. 2 million Humans spread from Africa ...