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.1. Look! The old man is w______ the flowers in the garden.2. Scientists are continuing the r_____ on the moon.3. Did many women a____ her beauty?4. The s____ did a lot of harm to people.5. If you drive carefully, there is no r_____ of traffic accident.【课后巩固】I. 选用所给单词并用其正确形式填空1. Food, clothing and shelter are all _____ necessities of life.2. It isn’t _____ to visit a friend at this time.3. Astronauts will live and do _____ work in it.4. He saved my life at the ______ of being hurt.5. I would rather live in France for the good _________.6. The students are ______ the trees.7. There was a bad _____ last week.8. The post office is _____ the bridge.9. The ______ from our house is very beautiful.10. I ____ him for his courage.II. 完成下列句子语态的变化1. Your computer can’t be repaired any more.__________________________________________.2. You must finish all the work before tomorrow afternoon._________________________________________.3. He may make this model plane.__________________________________________.4. Need he eat up all the cakes?__________________________________________5. The thief can be caught in three days by the police.___________________________________________.仁爱九年级英语上Unit4Topic2Section B导学案教学目标：利用新单词和短语谈论火星教学重点：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1.参加太空飞行_________________________________2.发现新的事情_________________________________3.掌握一些基本电脑技术_________________________4.在舞台上表演芭蕾_____________________________5.喜欢科学胜过舞蹈_____________________________6.将被揭秘/发现________________________________7.使我们的梦想实现_____________________________8.the introductions to the movies____________________9.list more science fiction movies___________________10.以…为基础__________ 11.决定证明…___________12.时光穿越_______________ 13.迷路______________14.为了检测他的想法____________________________15.一群外星人__________________________________16.一个十岁的男孩______________________________17.开始一段与众不同的友谊____________________________________________18.月球之旅____________________________________19.go wrong___________ 20….的开端______________21.地球末日____________________________________22.对…感兴趣__________________________________三．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。