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1、Unit 4 Amazing Science,Welcome to the unit,Topic 1,Spaceships are mainly controlled by computers Section C,New words,doubt 有魔力的 no-doubt 令人吃惊的，令人惊异的 tiny 掌握，精通 n. 主人 cancel 介绍，引进 connect 期望，认为，预料 for instance 宇宙飞船，航天飞机 exchange 微型世界,Teaching aims and demands,1. Master some new words and phrases: dou
2、bt, no doubt, tiny, cancel, connect, for instance, spend (in) doing 2. Go on learning the use of object complement: At the same time, they have made the workplace safer and better. The Internet has made the world smaller, like a “village” . Tiny computers inside patients bodies keep their hearts bea
3、ting normally. 3. Improve the students reading skills. 4. Discuss the uses of the computers.,Review,(1) How long did Yang Liwei stay in space? (2) Can we make computers serve our lives better in the future? (3) Is a spaceship controlled by computers? (4) Is it important to master computer technology
4、? (5) What can computers do during a space trip?,Computers control the speed and the direction during a spaceships flight in space. They can also fix tiny mistakes and cancel wrong orders, etc. There is no doubt that computers are useful during the space trip. Whats more, computers have become very
5、important in our daily life. We can say the whole world is connected by computers. OK, lets begin the new lesson.,(1) Do the computers play an important role during the space flight? (2) What can computers and the Internet do in our daily life? (3) Can we work on computers too long? Why?,Lets look a
6、t the pictures and tell me whether they are good habits or not,Talk about the use of computers.,Look and discuss,Points,Grammar,Explanation,1. No one knows for certain, but most people think that robots will be part of our lives. 没有人确切知道（未来的样子），但大多数人认为机器人将来会成为我们生活的一部分。 for certain 确切地，肯定地 如： I know
7、for certain that he is at home, but he wont answer me on phone. 我肯定他在家里，但是他不会接我电话的。 He said for certain that man was being looked for by the police. 他肯定地说，那个人正在被通缉。,2. They work for us like servants all the time. 它们一直象仆人一样为我们工作。 （1）servant 仆人，佣人，与master主人，相对。 如： Are we masters or servants of robots?
8、 我们是机器人的主人还是仆人？ （2）all the time 一直，始终 如： Mr. Zhao insists on his own opinion all the time. 赵老师一直坚持他自己的观点。,3. In a few years, perhaps robots will think and act for themselves. 几年之后，机器人可能将会为它们自己思考和做事。,（1）in a few year 也可以写成in a few years time意为“在几年的时间里，几年之后”。与一般将来时连用。 如： We will plant thousands of tre
9、es on the mountain in a few years/ in a few years time. 在几年之内，我们将在山上栽种成千上万棵树。,（2）for oneself 为自己 如： You are always thinking for yourself, no wonder others often say you are selfish. 你总是为自己想，怪不得别人经常说你自私。 链接（all）by oneself 单独地，独自地 如： Its more satisfying to do the job by oneself. 独自一人做这项工作更让人感到满足。 to o
10、neself 独享的，独自拥有的 如： Its possible to have the place to oneself if its early. 如果早的话，有可能独用这个地方。,辨析act, behave, action, behavior,（1）act v. 做事，行动，表演 如： The girls life was saved because the doctors acted so promptly. 由于医生行动迅速，女孩的生命得救了。 It is vital that we act to stop the destruction of the rainforests. 至关
11、紧要的是，我们应当采取行动制止破坏雨林的行为。 （2）behave v. 表现，行为 如： They behaved very badly towards their guests. 他们对客人们很不礼貌。 He behaved like a true gentleman. 他的行为像个真正的绅士。,（3）action n. 行动，行为过程 如： The time has come for action if these beautiful animals are to survive. 若要使这些美丽的动物都能生存下来，现在就要行动起来。 She began to explain her p
12、lan of action to the group. 她开始向小组解释她的行动计划。 （4）behavior n. 行为，举止，态度 如： His behavior towards her was becoming more and more aggressive. 他对她的态度越来越蛮横。 Laughing at others is a bad behavior. 嘲笑别人是不好的行为。,4. One scientist warns that if robots start to think for themselves, they will no longer want to be ou
13、r servants, but our masters. 一位科学家警告说如果机器人开始为它们自己考虑，它们就不再想做我们的奴仆，而是想做我们的主人。,课堂互动,warn 警告，告诫。常用结构有：warnthat从句，warn sb. not to do sth.（警告某人不要做某事）和warn sb. against (doing) sth. （告诫某人远离）。 如： I warn you not to walk alone. 我警告你不要独自去散步。 We are warned that there is a bull in the field. 有人提醒我们田野里有头公牛。 The police have warned tourists against going further places. 警察告诫游客不要到较远的景点去。,Homework,收集一些关于计算机在我们生活中使用的信息,
