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 link
1.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
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目的。
2.I will be a success in time.
我早晚会成功的。
3.We all cheered up at the news of the successful launching of Chang’e Ⅰ.
听到嫦娥一号发射成功的消息，我们都欢呼起来。
4.Now that we’ve just begun, keep on!
既然我们已经开始了，那就坚持下去！
Ⅲ.Word café
1.atmosphere: n. ① 大气；大气层 ② 气氛；环境
a friendly atmosphere ____________ clear the atmosphere :消除误会（或紧张猜疑气氛）
2. harmful: adj.有害的（to）
harm : n./vt 损害 do harm to sb___________; Harm set,harm get.害人反害己
3.mass: n. 质量；堆，团，块；大量 the masses 群众
vi.集中聚集 Dark clouds are massing in the west.西方乌云密布。
常用词组：a mass of/ masses of 大量的；可用来修饰可数名词和不可数名词。该词组作主语时，谓语动词的单复数有所修饰的名词决定。
Masses of students ________ interested in computer games.
A mass of work ________ to be done today.
4. climate: n.①气候（地区的长期来的气候状况）②一般（社会）趋势（社会）风气
weather: n. 天气（短期内的天气状况）
5.lay (laid;laid) vt.①下蛋② 放置 lay a book on the table
③布置 安排 lay the table (准备开饭时)摆好餐具
④提出（问题、主张等）lay the question before the committee.
lie : (lied;lied) vi. 说谎
lie : (lay;lain) vi. 躺；位于
Ⅳ.Use the words and expressions.
1.Buddhism is one of the world ___________ and one of its most famous ________ buildings in China is the Potala Palace in Tibet. (religions;religious)
2.Some dinosaurs were very large but also very _________. Young dinosaurs were treated very __________ untill they became adults. (gently;gentle)
3.Smoking is h __________ to your health. You’d better give it up.
4.Nobody knows if life used to e ___________ on the Mars(火星).
5.His question really p __________ me. I had to ask the teacher for help.
break out now that cheer up in time prevent from
6.Whenever I am sad, he always thinks up a good idea to make me ______________.
7.If you won’t listen to your parents, you’ll feel sorry ____________.
8.Should another world war ____________? What would become of human beings?
9.___________ you’ve got your job, you shouldn’t depend on your parents any more.
10.We should take some measures to _____________the river _________ being polluted.
Ⅴ.学后反思：
基本词汇知识掌握情况如何？
Ⅵ.Post-class work:
1.Preview How Life Began on The Earth
2.Complete the next paper for yourself.
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