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1、九年级英语上册Unit 4 Amazing Science Topic 2 When was it invented Section C学案（无答案）学习目标：1. 了解机器人将给人类带来的益处和害处。2培养科学探索精神，讨论怎样使机器人更好地服务于人类。课前预习：1课前复习：任选一例，编写对话。ComputerInvent/ in America/ in 1946Shenzhou Launch / in China/ in 2020CloningExperiment/ Dolly/ DNAA：_? B: _A: _? B: _2. 查找有关机器人在现代社会中发展的资料，读1a，试着完成下列的
2、句子并翻译。1）No one knows _ _ what our future will _ _.2）Most people think robots_ _ _ _our lives.3）Robots work for us_ _all the time without _any problems so far.4） People _ _ _ the rapid development of robots.5） If robots can think and act _ _, they might _ _ want to be our _, but our _, they might _ u
3、s _ we now treat our pets.6） Perhaps there will be a war_ human beings _ robots in a few years.知识点导学：1. No one knows for certain, but most people think that robots will be part of our lives. 1）no one 和none 都表否定。no one用来指人，其后不能接of 短语做主语，谓语用_数。None既可指人也可指物，其后常接短语（none of +名词/代词）做主语，当of后是可数名词复数时，谓语动词用单
4、、复数均可。 Eg: _ knows the answer. _ of you know/ knows the answer. 2) for certain 确切地，肯定地 确切地说 _2. In a few years, perhaps robots will think and act for themselves. 1）in a few years = _, 译为“在几年的时间里，几年之后”，与一般将来时连用。 2）for oneself 为自己 Eg: 你总是为你自己想。 You are always _ _ _.3. One scientist warns that if robot
5、s start to think for themselves, they will no longer want to be our servants, but our master.1) warn 意为“警告，告诫”常用结构：warn + that从句； _ 警告某人（不要）做某事； _告诫某人远离 eg: 我警告你不要独自去散步。2) no longer 不再 = _ . no more = _no longer中的longer是副词long的比较级，long有after a certain point of time(在某一时刻以后)之意，着重表示时间的不再延续，意为“如今不再”。 n
6、o more中的more是many / much的比较级，more有again之意，着重表示数量或程度的减少，意为“再也没有更多(大)的数量(程度)” 或再也不重复过去反复发生的动作。4. They might treat us as we now treat pets. 译： 1）might 是may 的过去式，可用于指过去，也可用于指现在， 但语气缓和、委婉。 2）treat as/ like 以 方式对待/把 看做5. It has made a great contribution to humans health. 译：_ make a contribution /contribut
7、ions to sth./ doing sth.为(做)做贡献 We should make a contribution to _ (protect) the environment.教学过程：1 课前复习及预习检测。课后巩固：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 knows _ _ 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
8、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.选择填空。1. The workers made great contributions _the tall building. A. to build B. to building C. build2._ of the students are playing outside, for its raining. A. No one B. None C. Som
9、eone3. The policeman warns the boys _ on the street. A. to play B. not to play C. dont to play4. The little boy _when he saw his mother. A. cried any longer B. didnt cry any more C. cry no more按要求完成句子。1.What will our future be like?（写出同义句） _ will our future _?2.No one knows for certain who will take the place of Mr. Lee,_ _?（写出附加疑问句）3.You are no longer a little boy.（写出同义句） You _ a little boy _ _.
