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3.通过学习，充分发挥想象力，培养热爱科学的意识。
二．The key points and difficult points
1. Key points:
Words and phrases: screen, display, alien, in the future, one day, be able to do sth.
Sentences: What fun! I can’t wait.
A wonderful movie will be shown tonight.
Houses, schools, and hospitals will be built on Mars.
Grammar: will+be+pp
Difficult points：
We will be able to do anything that can be done on the earth.
I won’t believe there are aliens until I see them with my own eye
三．学法指导: 启发引导，自主学习及小组合作学习等。
四．教学过程：
Step 1：Free talk (Make sentences)（导入）
Review 一般现在时和一般过去时态的被动时态
Step 2：Learn new words:
display [d??sple?] v. 显示，显露 过去式_____
screen [skri:n] n. 屏幕，银幕 on soft screens
alien [?e?li?n] n. 外星人 an alien
describe [d??skra?b] v. 描述，形容
outer space 外层空间
根据音标拼读单词。
Read after the teacher and students.
3. Read in pairs. ( one speak Chinese ,the other speak English)
4. Check the words :Fill in the blanks:根据音标或首字母提示完成句子。
(1.)--Could you please d________ your hometown?
--Oh, it’s a beautiful village.
(2.)Now many students can study on s______ in big cities.
(3.)I don’t believe there are _______[?e?li?n].
(4.)If you say “yes”，your face will d _______ on the screen of the machine.