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1、Unit 4 Amazing ScienceTopic 1 When was it invented? SectionA【学习目标】1.学习一般过去时的被动语态；（1）学习be made of和be made from的区别;（2）学习句型When/Where was it developed?2.学习表达希望和祝愿的句型；3.讨论新科技及发明。【预习案】一、读1a，完成1b及1c。二、 在文中找到并划出下面的短语81.不被允许做某事_2.玩电脑游戏_3.对你的健康有害_4.在某事上花太多的时间_5.让某人看某物_ _6.金属制造的_7.把发射到太空_8.从中学到很多关于的事_9.制作这个火箭
2、模型_10.未来某一天_ 11.(梦想)实现_12.follow the examples_13.similar conversations_ _14.桌子是用木材做的（看得出） 15.纸是用木头做的（看不出）_ 16.它被用来在上面写字_ 17.一张纸_18.听MP3_19.帮我们提高英语_ 20.数码相机_ 21.比更有用_ 【探究案】 在文中划出下面的句子并分析1.Because Im not allowed to play computer games. 译：_点拨：allow -1) allow sb. to do sth. - 允许某人做某事 2）be allowed to do
3、sth. 被允许做某事 练习：a.老板不允许我们工作时聊天。The boss_ _ us _ _ _ b.学校不允许我们上学穿其它衣服。We _ _ _ _ other clothes _ _. 2.Its used for sending satellites or spaceships into space. 译：_点拨：a.be used for doing sth. -(被)用来 (强调用途或作用) b.be used to do sth. - (被)用来去做(强调目的)c.be used as - (被)用作(强调被用作工具或手段) d.be used by -被使用，后跟人/物（强
4、调使用者）练习：a.邮票是用来寄信的。_ b.语言是被用来描述人的感情的。_ c.这个盒子被当做桌子来用。_ d.录音机经常被英语老师使用。_注意：be used to doing sth. = get used to doing sth. - 习惯做某事 used to do sth. - 过去常常做某事练习：a.他每天习惯做晨练。He _ _ morning _ _ _. b.过去放学后，她常常在家弹钢琴。She _ _ at home _ _.3.I wish I could go into space some day. 译：_点拨：此处为虚拟语气，即所希望之事较为渺茫。 如: 我希望
5、我会飞。I _ I _ fly some day.总结：（1）wish to do sth. (2) wish + 宾语 + to do sth. (3) wish + (that)从句 (4) wish + 宾语 + 宾补练习：a.他希望有朝一日到国外学习。He _ _ study _ some day.b.我希望你工作能更努力些。I wish _ _ _ study _. c.我们希望最终可以取得成功。 We _ that we _ be _ _ _ _. d.祝你好运! I wish you _ _. e.我希望你取得圆满成功。I wish you _ _ _.链接：(1)hope的用法
6、与wish相似 切记！没有hope sb. to do sth. 结构 (2)hope+(that) 宾语从句，表示能实现的愿望。 如: I hope I can go there one day.4.Its made of wood. 译：_点拨：a. be made of - 用制造的（从成品中可以看出原材料） b. be made from -(从成品中看不出原材料)c. be made by- 由（被）（人）制作d. be made in 在某地制造 e. be made into - 被制成某物练习：1）这种桌子是用木头做的。 _2）这些纸是用木头做的。 _ 3）这蛋糕是你妈妈做的吗
7、？_ 4) 苹果手机是美国制造的。_ 5) 金属可以被制成各种各样的物品。_【归纳】I. 按要求变化下列各句1. My parents didnt allow me to play computer games. （改为被动语态） I _ not _ to play computer games by my parents. 2. The computer desk is made of wood. （对画线部分提问） _ the computer desk made of?3. Jim bought a new sweater. （改为被动语态） A new sweater _ by Jim
8、. 4. The house wasnt built in 1998 by them. （改为被动语态） They _ the house in 1998.5. Did he make you work for long time at night? （改为被动语态） _ you _ to work for long time by him at night?II 选用所给单词，并用其正确形式填空good, wash, use, million, in, do, print, other, wide, invent In the modern life we have many machine
9、s. There machines are (1)_ used all over the world. They can make things (2)_ and faster than people can. A Washing machine can help us (3)_ clothes quickly. Well have much time (4)_ what we want to do. A printing machine (5)_ a lot of books, newspapers and many (6)_ things quickly. Buses, bikes, ca
10、rs, trains, planes and ships help us travel faster than before. The computer was _(7) many years ago. It is one of the most important inventions. Today it is (8)_ in many ways. It can store information and work out math problems (9)_ of times faster than before. (10)_a few years the computer may tou
11、ch everyones life, even people in villages. III. 汉译英1. 邮票是用来寄信的。 Stamps _ sending letters. 2. 我们在阅览室里不准抽烟。 We _ in the reading-room. 3. 这座桥是由石头制成的。 The bridge _ stones. 4. 我希望有一天人类能居住在月球上。 I wish human beings _ on the moon one day. 5. 据说纸是中国人发明的。 _ that paper _ by Chinese. SectionB【学习目标】1.继续学习一般过去时的被动语态；2.了解一些科技成果，谈论科技发明的发明人和发明时间；3培养学生对科学的热爱之情。【预习案】
