仁爱九年级上unit4topic2导学案

仁爱九年级英语上Unit4Topic2SectionA导学案

设计人：耿艳华

教学目标：利用新单词和短语谈论外星人

教学重点：能够使用合理的句型表达可能和不可能

教学难点：被动语态

教学过程

一. 读1a，完成1b

二. 在文中找到并划出下面的短语

1.这周六晚上_______________________________

2.太空生活_____________

3.生活在火星___________

4.生活在太空___________________________________

5.乘飞船旅行_______________

6.在地球____________

7.将会有______________

8.将能够…_______________

9.真有意思！___________10.(梦想)实现_____________ 11.为了了解人类文化_________________________

12.我亲眼见到他们___________________________

13.观看这样的电影___________________________

14.科学研究__________________ 15.造纸___________

16.在别的行星________________________________

17.make sentences_______________

三. 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.

b.李明可能被选为我们班的班长。Li Ming ________ ______ ________ as the __________ of our class.

c.下课后应该擦黑板。The blackboard ________ _______ _________ after class.

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

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.过去为了赚钱他们什么都肯做。They did anything _____ ________ ____ __________ __________ in the past.

2.为了通过考试，他每天学习十多个小时。

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

3.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.

4.为了提高口语他去年去了英国。He went to England last year ___ ______ ____ _________her_______English.

3.I don’t think aliens can be found in space. 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, ________ _________?

c.我认为明天不会下雨，是不是？I ________ ________ it _______ _______ tomorrow, ________ _________?

4.I won’t believe there are aliens until I see them with my own eyes. 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：___________________________________________

总结：until…前面主句的谓语动词是_______________; not…until…前面主句的谓语动词是_______________

练习：1.昨天晚上直到完成作业我才睡觉。I _______ go to bed _______ I _________ my homework last night.

2.明天我会一直等到你回来。I _______ ________ ________ you ________ you ________ back tomorrow.