1 The earth is over 4 billion years old. Modern man has lived on the earth for only 35,000 years. We have changed our planet in many ways. Many of the things that we have done are good, but more are not good for the earth. Water pollution: A lot of people, birds and fish die...
The Earth has a history of more than 4 billion years, and modern man has lived on it for only 35,000 years. During that time, people have changed the Earth in many ways. They have done both good and bad things to the Earth. In big cities, cars and buses have polluted the air so...
2 The Earth is about 4.5(billion) years old. 相关知识点: 试题来源: 解析 【答案】billion【核心短语/词汇】4.5 billionyearsold: 45亿岁【翻译】地球大约有45亿年的历史。【解析】句意为“地球大约有45亿年的历史。”billion: 十亿,因有具体的数字4.5修饰,billion应用原形。故答案为:billion。
这本书名为《A Brief History of Earth: Four Billion Years in Eight Chapters》, 作者是Andrew H. Knoll。 1. **Chemical Earth** - 这一章节可能讨论了地球的化学组成,包括地球形成初期的元素和化合物,以及它们如何塑造了地球的早期条件。 在第一章 "Chemical Earth" 中,作者Andrew H. Knoll 探讨了地球...
WASHINGTON, April 9 (Xinhua) -- American planetary scientists have identified key ingredients that were in large concentrations on Earth nearly 4 billion years, a chaotic period when the planet's chemistry improbably gave rise to the very first organisms. ...
根据第一段可知:the earth: 4.6 billion years old;Qomolangma: about 60 million years old;the Amazon Rainforest: about 55 million years old;the Baltic Sea: about1 15,000 years old。可以得知地球有46亿年的岁数。故选项A正确。【小题2】细节理解题。由关键词changes of the earth可定位到第二段。
The Earth is 4.5 billion years old, but the human race has lived on it for just 200,000 years.In that short time, we have achieved some amazing things.Many of humans'great achievements are in science and technology. The list is almost endless. The 1. invention of the airplane has ...
ScientistsbelievetheEarthis4.6billionyearsold.However,themountains,valleys(山谷),hills,rivers,desertsandforestsweseetodayaremuchyoungerthanthat.Forexample,MountQomolangmaisabout60millionyearsoldandtheAmazonrainforestisonly10millionyearsold.TheyoungestseaintheworldistheBalticSea,atabout15000yearsold.TheEarthisalways...
阅读理解改变生活的事物The earth is 4. 5 billion years old, but the human beings have lived on it for just 200,000 years. During the time, we have achieved some unbelievable things.Many of humanity's great achievements are in science and technology. The list is almost endless. The inventio...
阅读理解四项有趣的发明 The Earth is 4.5 billion years old, but the human beings have lived on it for just 200,000 years. During the time, we have achieved some unbelievable things. The list of humanity's great achievements is almost endless. Here we'd like to show you four interesting ...