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1、Unit 4 Topic 1 Spaceships are mainly controlled by computers 【学习目标】1.进一步学习宾语补足语；2.谈论电脑的重要性，提醒学生要合理使用电脑。【预习案】一、读1a, 完成1b, 1c 和2 二、在文中找到并划出下面的短语1.在工作和娱乐的许多方面_ 2.无疑地_ _ 3.在电脑的帮助下_ 4.保证他们的心脏正常地跳动_ 5.对人类有危险_ _ _ 6.订货和取消订单_ 7.出现，产生 _ 8.私人电脑 _9.看电影_10.多亏了因特网_ 11.购物和做生意_ 12.代替在纸上写信_ 13.通过发电邮的方式_ 14.网上聊天_ 15
2、.例如 _ 16.使世界更小_ 17.从事计算机工作时间太长_ 18.患头疼或眼疼_ 19.玩电子游戏太过分_ 20.尺寸很小_21.把两个或更多的东西连接起来_22.一种的感觉_23.be uncertain about something_24.与某人交换信息_ 25.list the advantages and disadvantages of the computer _ 26.造句_ _ 27.pay attention to the structure_ 【探究案】 在文中划出下面的句子并分析1.There is no doubt that computers are very
3、useful in technology and business.译：_点拨：no doubt(名词) - 无疑地，很有可能 句型：There is no doubt that - 毫无疑问，确实 拓展：doubt - 怀疑，疑惑(动词) a.在肯定句中，doubt + whether 从句 b.在疑问句或否定句中，doubt + that 从句练习：1）毫无疑问你犯了一个大错误。_ _ _ _ _you great .2）我肯定他会准时来。I _ doubt he will come _ _.3）她一到那儿时必定会给我们打电话。 _ shell call us _ _ _ she gets
4、 there.4）我想他不会很快就来。I doubt he will come soon.2.With the help of computers, doctors can find diseases easily and solve other problems.译：_ 3. For example, tiny computers inside patients bodies can keep their hearts beating normally. 译：_点拨：tiny (形容词) 极小的，微小的 思考：tiny的比较级- 最高级- 近义词- _ 点拨：normally - 正常地，正
5、规地，一般地 思考：normally的形容词-_4.In business, computers are used to place and cancel orders. 译：_对比：be used to doing sth. - used to do sth. 练习：a.我以经习惯了网上购物。_ b.电脑被我们用于购物。_5.Since the Internet came into being, peoples lives at home have changed, too. 译：_ 6.Besides, not everything we read on the Internet is t
6、rue or good for us. 译：_思考：we read on the Internet 是一个_从句，修饰先行词_ 【归纳】I. 完成下列同义句变化1. To laugh at people in trouble is not right, I think. I think _ to laugh at people in trouble. 2. Edisons mother found him a clever boy. Edisons mother found him _ a clever boy. 3. You can see many beautiful flowers ar
7、e blooming（开放）in spring. You can see many beautiful flowers _ in spring. 4. Shall we go for a walk after supper? Lets _ for a walk after supper.II. 根据汉语提示完成句子1. He came to visit us _（在一个寒冷冬天的早晨）.2. We _（为而骄傲）Yang Liwei.3. China _（将把送入/发射）man-made satellites into space. 4. Shandong _（以而闻名）its apples.
8、 5. When he heard the news, he _（情不自禁地笑了）.6. I have _ （毫无疑问）that he heard the news. 7. What are you going to be _（在将来）?8. We _（被感动）what Lei Feng did.9. He said he wanted _（向学习）from Jim Green. 10. _（也；又）Li Lei, he likes playing games with others. 11. They _（轮流）to clean the floor every week. 12. _（多么重
9、要）to master English!13. I was able to _（入睡）_（一就）I go to bed. III. 阅读对话并根据首字母提示完成单词Li Jun: I r_(1) an email yesterday.Marie: Who was it from?Li Jun: It was from my pen-pal David in the USA. Marie: Do you often s_(2) emails to each other?Li Jun: No, we dont. I sent him an email the day before yesterda
10、y and told him my website. And he sent me one yesterday. Marie: Wow, so fast!Li Jun: Sure. It is much fast than p_(3) a letter in the post office. In f_(4), he can receive my e-mail as soon as I t_(5) the letter on the keyboard and send it. Marie: Oh, I think it is the quickest way to send messages. Nothing can be faster than an email.
