九年级英语Unit 4 Topic 2学案

Unit4 Topic2 I’m excited about the things that will be discovered in the future

主备人：付灵芝审核人：刘雪莉白新伟课型：新授备课时间：2015 -12-10

教学目标：1掌握一般将来时的被动语态。

2.了解有关外星人、火星的相关描述。

3.激发对宇宙未知世界的兴趣。

教学重点（考点）：一般将来时的被动语态

教学难点：对宇宙未知世界、外星人、火星的理解

教学流程：Section A

一、设疑自探

（1）语法：含的一般将来时被动语态（Students try to understand it in groups)

( 2 ) 预习1a,完成下列短语(Students work in groups to finish them)

1.一部精彩电影__________________________

2. 将被播出_________________

3.太空的生活_____________

4.乘飞船旅行_______________

5.像火星的星球________________________

6.在未来_____________

7.生活在太空____________________ 8.在电影里____________

9.将能够…_______________ 10（2b）在海底_____________

11.在外太空___________ _____ 12.为了了解人类文化_____________________

13.亲眼见到他们______________________

二.解疑合探:在文中划出下面的句子并分析

1.We will be able to do anything that can be done on earth.

译：___________________________________________

思考：that can be done on earth是______从句，修饰先行词__________

点拨：can be done --- 能够/可以被做(带有情态动词的被动语态)

练习：a.这些树明天必须被栽种。These trees _______ ______ _________ tomorrow.

2. They are reading information on the Internet in order to learn about human culture. （3）

译:_______________________________________________________________________

点拨：in order to (do) --- 为了…(后接目的状语)，否定形式--- in order not to (do)…

链接：so that --- 为了…(后接目的状语从句)

练习：1.为了通过考试，他每天学习十多个小时。

___ _______ _____ ____ fail the exam, he studied _____ _____ _____ ____ _______ every day.

2.为了能赶上早班车今天早上他起床很早。

He ______ ____ early _____ _______ he _______ _________ the early bus this morning.

3.I don’t think aliens can be found in space. （3）

译：______________________________________________________

点拨:主语(第一人称)+think/suppose/believe/imagine/expect，后面宾语从句中的否定词not要前移到主句，即_____

注意：这种含有否定前移复合句的反意疑问句部分要与从句一致

练习a.I expect they can make progress in English.(变否定句)

____________________________________________

b.我相信他不会回来, 不是吗？

I _______ __________he ________ ________ back, ________ _________?

4.I won’t believe there are aliens until I see them with my own eyes. （3）

译：_____________________________________

点拨:not…until…--- 直到…才…(until引导了时间状语从句)，从句中要遵循---主将从现的原则. 对比：…until…和not…until…

分析：a.They kept waiting for her until she came back. 译：________________________________________ b.They didn’t leave until she came back. 译：___________________________________________

三质疑再探1.Students say out their problems and discuss them together. 2.Exercise:

一、根据括号内所给汉语提示填空

1._____ ______ _____（为了）learn English well. He joined the English club in our school.

2.I _____ ______ _____（不相信）there are aliens .

3.Man ______ _____ _____（能被克隆）by scientists in the future .

4.Scientific_______ should be done carefully and completely

5.--Do you know if there is life on other planets ?--_____ _____ ____ ____(恐怕没有）

Section B

一设疑自探:预习1a，完成下列短语

1.太空飞行________________

2.参加______________________________

3.我想成为一个宇航员_____________________________________________________

4.掌握一些基本电脑技术______________

5.我不确定__________________________

6.在舞台上表演芭蕾_________________________

7..喜欢科学胜过舞蹈_________________

7.使我们的梦想将会实现__________________

二解疑合探：在文中划出下面的句子并分析

1.I prefer science to dance. 译：____________________

点拨：prefer --- 更喜欢…= like…better

总结：a. prefer sth.to sth. 和…比较起来更喜欢…b. prefer doing sth. to doing sth. --- 和做某事比起来更喜欢做某事

c. prefer to do sth --- 更喜欢做某事(一时性的)

d. prefer doing sth. --更喜欢做某事(长久性的)

练习：a.和重庆比起来我更喜欢厦门。I __________ Xiamen ________ Chongqing.

b.和游泳比起来我更喜欢滑冰。I prefer __________ _______ ___________.

2. Let’s work hard to make our drams come true.

译：__________________________________________________

点拨：make sb./sth. do sth. --- 使某人/某物做某事思考：to make our drams come true在句中做________状语

拓展：make sb. adj. --- 使某人处于某种状态make sb. + 名词--- 使某人成为……

练习：a.不要让我等太久。Don’t _______ _____ _________ _________ too long.

b.那个消息使他们兴奋。The news _________ _________ ___________.

三质疑再探

1.Students say out their problems and discuss them together.

2.Exercise

Ⅱ.情景交际

A: Hi, Mary. There will be an exciting movie next Sunday evening. 1

B: Sure. What is it about?

A: 2

B: Is it interesting?

A: Yes. People can visit planets like Mars by spaceship.

B: 3

冷水中学九年级英语学案