人教版高中英语单元：Astronomy(单词)

Unit 4 Astronomy Word Study,1. science subjects,2. system n.,(1) 系统; 体系,solar system 太阳系,the banking system 银行系统,(2) 制度,educational / social system,3. theory n. 理论;学说,the theory of relativity 相对论,the theory of evolution 进化论,在理论上 在实践中,in practice,in theory,4. atom n. 原子,atomic adj. 原子的；核能的,atomic bomb 原子弹,atomic energy核能,5. billion n. 十亿,two/ several billion dollars,billions of dollars,millionaire 百万富翁 billionaire 亿万富翁,6. globe n. 地球;地球仪,tourists from every corner of the globe,global adj. 全球的,地球村,全球变暖,the global village,global warming,violent adj. (1) 猛烈的;激烈的,a violent storm / earthquake,a violent quarrel,(2) 暴力的,violent crime,violence n. 暴力,in time (1) 及时,in time for sth. / to do sth. 来得及做某事,Luckily, we were in time for the train.,Luckily, we were in time to catch the train.,(2) 总有一天；迟早,Im sure things will get better in time.,与time相关的短语: 立刻, 马上 有时 每次;一次 从前 按时;准时 曾经 暂时 不时地,in no time,at times,at a time,once upon a time,on time,at one time,for the time being,from time to time,9. atmosphere n.,(1) 大气（层）,atmosphere pressure 大气压力,(2) 气氛,There is an unpleasant atmosphere in the office today.,10. unlike prep. 不像；不同,dislike v. 讨厌；不喜欢,Unlike John, Tom dislikes playing football.,12. fundamental adj. 基本的，基础的,the fundamental rules of grammar,be fundamental to 是的基础,Hard work is fundamental to success.,13. presence n. 出席;出现；到场,在某人面前；当着某人的面,John feels uneasy in the presence of strangers.,present adj. 出席的；到场的 be present at,in ones presence,in the presence of sb.,chain n. v. （1）链子,（2）一系列；一连串的（事或物）,a chain reaction 连锁反应,（3）连锁店,Wal-mart has many chains all around China.,（4）用链拴住,He chained his bicycle to the post.,a gold chain,15. reaction n. 反应；回应,What is his reaction to your proposal?,react v.,How did your mother react to the news?,16. multiply v. （1）乘 （2）增加 （3）繁殖,Some animals multiply rapidly.,If you multiply 5 by 2 , the answer is / equals / makes 10.,You can multiply your profit in this way.,17. lay eggs 下蛋,lay v. (laid ; laid),lay down 放下 She laid the baby down gently on the bed. lay aside 搁置, 积蓄 Every week he lays aside a few dollars for his old age. lay off 解雇，下岗 In the financial crisis, the company laid off some workers.,18. exist vi. 存在；生存 There is no evidence that life exists on other planets. They existed on bread and water for a month.,existence n. 存在；生存,=come into being,come into existence 开始存在；出现,