福建省南安市石井镇厚德中学九年级英语上册 Unit 4 Topic 2 When was it invented Section C导学案（无答案）（新版）仁爱版.doc

unit 4 topic 2 when was it invented 【学习目标】1. 复习一般过去时的被动语态2.讨论怎样使机器人更好地服务人类，培养学生的科学探究精神。【预习案】一、 根据1a，完成1b 的词汇 二、再读1a，回答1c的问题。三、在文中找到并划出下面的短语41.没一个人_2.确切地知道_3.成为我们生活的一部分_4.大多数人_ 5.总是，一直_6.给我们造成一些问题 _ 7.像仆人一样为我们工作_8.危险而难做的工作_ 9.对感到吃惊_ 10.机器人的快速发展_11.在数年后_12.think and act for themselves_13.可能出现问题_ 14.不再_15.对待我们如同一样_ 16.一场与之间的战争 _ 17.根据下面的含义_ _18.把记下来_19.有把握,自信,不怀疑_20.以一种特别的方式表现_21.一个问号_ _22.x射线机_ _ _ _ 23.为做出很大的贡献_24.have bad effects on_ _ _【探究案】 在文中划出下面的句子并分析1.no one knows for certain, but most people think that robots will be part of our lives. 译：_点拨：know for certain 确切地知道 拓展：肯定地说_ for certain = for sure - 确切地,肯定地练习：a.我说不准这辆自行车值多少钱。i cant _ _ _ _ _ the bike _. b.我肯定他在家。i _ _ _ that he _ _ . c.我知道肯定他就在那儿，但他不回答我。i _ _ _that he is there, _ he doesnt _ me. d他肯定在一小时内到达。he _ _ here _ _ in one hour.2.one scientist warns that if robots start to think for themselves, they will no longer want to be our servants, but our masters. 译：_点拨：warn -警告,告诫(动词) 总结：(1) warn sb. of/ about sth. - 警告某人某事 (2) warn sb.(that)- 警告某人 (3) warn sb. not to do sth. = warn sb. against doing sth. - 警告某人别做某事 练习：a.老师提醒我们注意那几级楼梯。the teacher _ us _/ _ those _. b.我们警告过他们田野里有一条狗。 we _ them that _ _ a dog in the _. c.我警告他不要一人走回家。 i _ him _ _ walk home _. = i _ him _ _ home _.点拨：no longer, no more, not any more, not any longer - 不再 区别：_和_可以放在情态动词，be动词和助动词之后，行为动词之前，也可以放在句子最后 注意：no longer和not any longer表示动作不再延续，必须和表示持续意义的动词一起连用；no more和notany more 表示动作不再重复出现，常和短暂性动词连用。练习：a.我们将不再做这么傻的事了。well _ _ _ _ silly things. = we _ _ _ silly things _ _. b.时间一去不复返了。time lost will _ _ return. = time lost _ return _ _.点拨：notbut- 不是而是 练习：a.这幅画不是你的而是我的。the picture is _ _ _ _.b.我们不是今天去伦敦而是明天。we _ _ for london today _ tomorrow.注意：当notbut连接两个并列主语时，谓语动词遵循“就近原则” 练习：不是你而是他已经犯了个大错误。_ you _ he _ _ a serious mistake.思考：我们学过遵循“就近原则”的结构还有：_ / _ / _ / _3.it has made a great contribution to humans health. 译：_点拨：make a great contribution to (doing) sth.-为(做)某事作出贡献 注意：to在此是介词 练习: a.the invention of paper was a great contribution to humans. 译：_b.那位科学家已经为探月作出了巨大贡献。the _ has _ _ _ _ to _the moon.思考：我们学过的类似上文介词to的短语还有：习惯于_;坚持_;期待_4.robots are meant to be our servants, arent they? 译：_点拨：be meant to be - (命中)注定是 , 应该是 a.we are meant to be together. 译：_b.i was meant to work on monday, but i was ill in bed for a whole day. 译：_思考：arent they？在句子中是_部分【归纳】i. 按要求变化下列各句1. we planted many trees in our school last spring. （改为被动语态） many trees _ in our school last spring by us.2. the policeman made the young woman move her car. （改为主动语态） the young woman _ her car by the policeman.3. an english song was sung by her in our school hall last night. （改为主动语态） _ an english song in our school last night. 4. the bike was borrowed by wang fei. （改为主动语态） wang fei _ the bike. 5. the coat with four pockets was bought for me by my father. （改为主动语态） my father _ the coat with four pockets. 6. did she take photos near tianchi when the guide showed her around mount changbai?_ photos near tianchi _ by her when _ by the guide around mount changbai?ii. 汉译英1. 不准我晚上熬夜。 i _ to stay up too late at night. 2. 我们每个人对科学的快速发展都感到惊讶。 every one of us _ the rapid development of science. 3. 机器人能够帮助我们完成一些危险和艰