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 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？_ 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. 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 machines. 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, cars, 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 touch 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】