地球生命起源 因为事隔颇久，没人真正了解地球上的生命是如何开始的。但是，根据一个普遍被大众接受的理论，宇宙是由“大爆炸”开始的，其将宇宙中的质量向四面八方推开。在此之后，原子开始形成和组合从而组成了恒星以及其他天体。
Astronomy: The Science of the Stars 天文学 星星的科学 Reading How Life Began on the Earth 阅读 地球上生命的起源 No one knows exactly how the earth began, as it happened so long ago. 没有人确切知道地球是怎样开始形成的,因为在很早很早以前它就形成了。 However, according to a widely accepted...
No one knows exactly how the earth began,as it happened so long ago.However,according to a widely accepted theory,the universe began with a "Big Bang" that threw matter in all directions.After that,atoms began to form and combine to create stars and other bodies. For several billion years...
Before we left, Li Yanping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful. 在启程以前,李彦平向我解释说,在我们的航行中会有三次引力的改变,而第一次的改变将是最强的。 Then we were off. 随后我们就起航了...
No one knows exactly how the earth began, as it happened so long ago. However, according to a widely accepted theory, the universe began with a "Big Bang" that threw matter in all directions.After that, atoms began ...
Unit4 Astronomy:the science of the stars 常考单词、高频短语和写作句式 Ⅰ. 常考单词必背 1.harmfuladj. 有害的 It's harmful to your eyes to read books in the bus. 在公共汽车上看书对你的眼睛有害。 [快速闪记] (1)be harmful to... 对……有害 ...
Unit4Astronomy：thescienceofthestars 1．astronautn.宇航员2．telescopen.望远镜3．universen.宇宙4．rocketn.火箭5．orbitn.(天体等的)运行轨道6．monitorvt.监测；监控 7．datan.资料；数据8．gravityn．万有引力9．planetn．行星10．theouterspace外太空11．weathersatellite气象卫星12．spaceshuttle航天飞机 1．...
[英语作文]太空探索(Astronomy:thescienceofstars)英语作文太空探索(Astronomy:thescienceofstars)英语作文假设你是高一学生李华,是学校的环保小卫士。为了提高大家的环保意识,你准备写一篇主题为“TheImportanceofWater”的`发言稿。请你根据以下提示写一篇5句话英语文章,内容要点如下:①Asisknowntoall,waterissoimportantto...
madeofjingetieji Unit 4 Astronomy：the science of the stars 课文知识点解析Warming Up Discuss in pairs which science subjects are part of medicine,biochemistry,geophysics or astronomy.分组讨论哪些科学科目是医学，生物化学，地理学或天文学的一部分。in pairs=two at a time=in twos 一次两个，两个一...
Unit 4 Astronomy: the science of the starsGrammarThe subject clause 主语从句是在复合句中充当主语的从句,主语从句是在复合句中充当主语的从句,通常放在主句谓语动词之前或由形式