九上U4T2SC(2).ppt

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1、Amazing Science Would you like to say something about them ?ComputerInvent/in America/in 1946Shenzhou Launch /in China/in 2005CloningExperiment/Dolly/DNA通过学习机器人对人类通过学习机器人对人类的利与弊的利与弊, 要求我们学会要求我们学会谈论事的有利因素和不谈论事的有利因素和不利因素。利因素。Look Robots Our Servants in the Future?Hello! We are your friends. We can hel

2、p you do dangerous and difficult work.Have you ever seen a robot? What do you know about robots?What do they look like?1.Do you think that robots will be part of our lives in the future?2.Robots are meant to be our servants, arent they?3.Do you think robots can think or act for themselves?4.Why does

3、 the title have a question mark?Listen to the passage and then discuss the questions with your partner.1. Will they be friendly?Maybe.2. What can they help human beings do?They help us to do dangerous and difficult work.3. What does the scientist worry about? Once robots start to think for themselve

4、s, they will not want to be our servants any more, but our masters.1. to tell somebody that something bad or dangerous may happen so that they can prevent it ( )2. to make something happen or appear（）（）3. a person who is paid to do house work for a family （ ）4. sure and confident, without any doubts

5、（）（）5. to behave in a special way towards somebody or something ( )warncauseservant certaintreat1. No one knows for certain.没有人确切地知道。没有人确切地知道。 no one 与与nonea. no one 用来指人，其后不能接用来指人，其后不能接of 短语，用做主语短语，用做主语时，谓语动词用单数。时，谓语动词用单数。No one likes a person with bad manners.b. none 既能指人又能指物，其后可以接既能指人又能指物，其后可以接of

6、 短语，当短语，当of后是可数名词复数时，谓语动词用单、复数均可。后是可数名词复数时，谓语动词用单、复数均可。None of the students is /are in the classroom.c. 特别注意：特别注意： How many people are there in that room? None. Who is in that room now? No one.探究学习探究学习探究学习探究学习for certain 确切地确切地 How much will the car cost？ I cant say for certain. 2. all the time = al

7、ways 一直，总是一直，总是The boy listened to the radio all the time.3. be surprised at /by对对 感到惊讶感到惊讶 be surprised to do sth.4.Once robots can think for themselves, problems may appear. once 在这用作连词，意为在这用作连词，意为“一旦一旦就就”,引导时间引导时间状语从句。状语从句。 The foreign visitors were surprised at the great wonders. I was surprised

8、 to hear I had passed the exam.Once you get used to it, you will like it.探究学习探究学习5. no longer=not any longer no more=not any more no more 和和 not any more 可以做宾语，可以做宾语，no longer不可以。不可以。 no longer意思是意思是“不再不再”，其确切含意为，其确切含意为某状态在某个时刻某状态在某个时刻之后不再继续下去了。之后不再继续下去了。 Im no longer a student. 我不再是个学生了。我不再是个学生了。后者

9、侧重后者侧重程度和数量程度和数量, 比如：比如： You can drink no more. = You cant drink any more. 你不能再喝了。你不能再喝了。(喝酒的量到了一定程度喝酒的量到了一定程度, 不能再继续下去了。不能再继续下去了。)探究学习探究学习think for oneself 独立思考独立思考 I often teach my students to think for themselves.6.One scientist warns that if robots start to think for themselves,they will no long

10、er want to be our servants, but our masters.a. warn warn sb. ( not) to do.告诫某人告诫某人 (不）做某事不）做某事 warn sb. about /of sth. 警告某人注意某事警告某人注意某事b. no longer = not any longer no more = not any more 7. They might treat us as we now treat pets. 他们可能会像我们现在对待宠物那样对待我们。他们可能会像我们现在对待宠物那样对待我们。 a. might 是是may 的过去式，可用于指

11、过去，也可用的过去式，可用于指过去，也可用于指现在于指现在, 但语气缓和、委婉。但语气缓和、委婉。 b. treat as 以以 方式对待方式对待/把把 看做看做探究学习探究学习My parents still treat me like a child. 父母仍然把我当成孩子。父母仍然把我当成孩子。Listen Robots Part of our livesServantsDo dangerous and difficult workThink and act for themselvesMastersLucky petsUnluckya wargreatlymedicalhealthin

12、sidediscoveringeffectsListen to the tape and fill in the blanks. For more than 100 years, peoples lives have been changed _ by inventions. For example, the X-ray machine is a wonderful invention in the _ field. It has made a great contribution to humans _. With its help, doctors can examine the _ of

13、 their patients bodies. It is used for _ illnesses. But it also has bad _ on our health. So the X-ray machine should be used carefully.8. be meant to do sth. 应该做某事，应该做某事，意在做某事意在做某事9. in the medical field 在医学领域在医学领域 field 有有“学科，领域，专业学科，领域，专业”等含义等含义10. make a contribution /contributions to 为为做贡献做贡献注意：

14、注意： make a contribution /contributions to doing sth. 11. have an effect/ effects on 对对有影响有影响探究学习探究学习 I think the police are meant to protect people.He made great contributions to science.We should make a contribution to protecting the environment. Playing computer games too much has a bad effect on

15、health.Read and know more about robots, then discuss together. Robots are everywhere. They have been in space, under the ocean, and inside volcanoes. What do you suppose the future of robots be like? In the future, robots may look, talk and walk just like people do. Some scientists say you may even

16、have robotic friends in a few years, but for this to happen, robots must be able to feel and have emotions. Scientists have already made robots that can act like animals. “Robots will be much more like humans in the future,” a professor said. Will robots take over the world? Most scientists dont thi

17、nk this will happen. At least that is until robots can think. If a robot cant think, it can only do what its told to do by people, so we dont need to worry yet.Will you worry about robots? Why? Design a robot. Write a passage about it. The following questions may help you.1. Whats its name?2. What d

18、oes it look like?3. What can it do for us?4. Can it think for itself?5. What are its advantages and disadvantages? Here is a robot . _. In short, this robot is very useful to us.Homework:Write a short passage to introduce your own invention. 一、根据汉语意思补全英语句子。一、根据汉语意思补全英语句子。1.没人确切地知道我们的未来是什么样子No one kn

19、ows _ _ what our future _ _ _.2.机器人会一直像佣人那样为我们工作吗？Do robots _ _us like _ all the time?3.人们对机器人的快速发展感到惊讶。People _ _ _ the rapid development of robots.4.我想，有一天机器人会有自己的思维的。I think that robots _ _ _ _ some day.5.X光机器已为人类做出了贡献。X-ray machines _ _ _ _ _ human beings.for certainwill be likework forservantsa

20、re surprised atwill think for themselveshas made great contributions to 二、选择所给词组的适当形式填空。二、选择所给词组的适当形式填空。词组：betweenand; no longer; for certain; treatas; have bad effects on1.We _ robots _ our pets at present.2.The X-ray machine also _ peoples health.3.He is _patient with us. He is easily annoyed (恼怒的

21、).4.That movie is about a war _ the robots _ humans beings.5.Do you know the answer _? treat ashas bad effects onno longerbetween andfor certain三、用所给三、用所给词词的适当形式填空。的适当形式填空。1.We _ (warn) not to play soccer in the street.2.I hope our difficulties will soon _ (appear).3.The boss is so _ (friendly) to h

22、is workers that none of them want to work for him for long.4.Hearing the _ news, all of us felt _ (excite).5.The U.S.A. is _ (develop) than any other country in the world.are warneddisappearunfriendlyexciting excitedmore developed四，选择正确的答案四，选择正确的答案 ( )1.The workers made great contributions _the tall

23、 building. A. to build B. to building C. build ( )2._of the students are playing outside, for its raining. A. No one B. None C. Someone ( )3.The policeman warns the boys _ on the street. A. to play B. not to play C. dont to play ( ) 4. The little boy _when he saw his mother. A. cried any longer B. d

24、idnt cry any more C. cry no more ( )5.Animals _our friends. A. should be treated as B. treat as C. are treated by ( )6. We are _ to hear the _ news. A. surprised; surprised B. surprising; surprised C. surprised; surprisingBBBBAC 五，按要求完成句子。五，按要求完成句子。1.What will our future be like?（写出同义句） _ will our f

25、uture _?2.No one knows for certain who will take the place of Mr. Lee.（写出附加疑问句） No one knows for certain who will take the place of Mr. Lee,_ _?3.You are no longer a little boy.（写出同义句） You _ a little boy _ _.4.Robots will be friendly to us.（用unfriendly写选择疑问句） Will robots be friendly _ _ to us?5.Jim will come back home in a few days.（对画线部分提问） _ _ will Jim come back home?How bedo theyarent any longeror unfriendlyHow soon(does he)(录音录音)