Unit4 Astronomy:the science of the stars-Vocabulary and Useful Expressions学习目标：1. Try to remember the key words and expressions. 2. Try to master the usage of some key words and expressions.学习重点：1. The usages of key words: ①atmosphere ②harmful ③mass ④climate ⑤lay 2.The usages of some expressions: ①in time/on time/in no time ②prevent… from ③ now that ④ break out/in/up/down/away from学习过程：Ⅰ.Reading 1.Read the words and expressions to check the pronunciation with your partners.2.Read after the teacher.Ⅱ.Knowledge link1.Know the new word according to the word learnt before.⑴ religious adj 宗教上的 ： ______________ (n.)_______________ (意义)⑵ practice n. 实践；练习： ______________ (反义)_____________ (意义)⑶ violence n. 暴力暴行 ： ______________ (adj.)_____________ (意义)⑷ harm n./vt 损害危害：______________ (adj.)____________ (意义)⑸ biology n. 生物学家 ： ______________ (…家) ____________ (意义) ______________ (科学家)___________ (物理学家) ______________ (地质学家)⑹ gentleman n. 绅士 ： ______________ (adj.) ____________ (意义)⑺ extinction n. 灭绝；消亡：______________ (adj.) ____________ (意义)⑻ globe n. 地球 ：______________ (adj.) ____________ (意义)⑼ existence n. 存在；生存 ：______________ (vi.) ____________ (意义)⑽ therefore adv. 因此于是 ：______________ (同义)2.Complete and recite the phrases below.⑴ 及时；终于______________ ⑵ 阻止制止 ______________ ⑶ 即然 ______________ 准时 on time 阻止制止 stop … (from) 立刻马上 in no time 阻止制止 keep … from ⑷ 突发 爆发 ______________ 打断，干扰 break in 机器坏了，抛锚 break down 用心 爱心 专心 发生 take place 打碎，分解 break up 脱离 break away from 偶然发生 come about Crazy English:1.Nothing can prevent us (from) reaching our aims.什么也阻止不了我们达到我们的...
