仁爱版9年级上  Unit 4 Topic 2 Section C学案

一.  学习内容

1.学习有关机器人的话题。

2．一般现在时的被动语态。

二、学习要求

1.必会生词和短语

future, certain, friendly, cause, servants, help, development, perhaps, however, warn, no

longer, if, lucky, treat, war

for certain

make a contribution to

Robots will think and act for themselves.

It is used for discovering illness.

2.必会主要句型

1. What will our future be like?

2. So far robots haven’t caused any problems for humans.

3. People are surprised at the rapid development if robots

4. One scientist warns that if robots start to think for themselves.

5. Perhaps there will be a war between human beings and robots.

三、本节课的学习要点及考点

重点句型：

1. no one 和none 都表示否定,用法有所不同,它们的区别是:

a. no one 用不指人.含有not even one 之意,其后不能接of短语,用作主语时,谓语动词要单数.如:No one knew who took the book by mistake,没有人知道谁误拿了这本书.No one likes a person with bad manners.谁也不喜欢不讲礼貌的人.

b. none 不仅指人也可指物,其后常接of短语,构成 “none of+名词/代词”,结构,当名词是复数时,谓语动词单复数均可.如: “I’m sorry” ,he said to the class, but none of you watched carefully enough.  “很遗憾”他对全班学生说. “你们中没有一个仔细观察过我的动作.注意:----how many people are there in your classroom now?现在你们班里有多少人?----none 没有人.----who is in your classroom now? ---no one 谁现在在教室里?没有人.

Know/say for certain 确切知道/肯定地说.如:How much will the car cost? I can’t say for certain , 这辆车值多少钱?我说不准.I know for certain that Boby is at home.我肯定鲍比在家.

2.be surprised at/by 为….而感到惊讶,如:I was surprised at sue’s outburst .苏突然大怒了,我很惊讶.be surprised to do sth  为…而惊讶或惊喜,如:I was surprised to know that I had passed.我得知自己通过时,感到非常惊喜.

3.这里是连词,意为 “一旦” “一…..便….”用来引导时间状语从句.如:Once she arrives we can start.她一到,我们就可以开始.

4.warn警告其结构有 warn sb ,to do sth ,告诫某人做其事.warn sb about/of sth ,警告其人关于其事.

Warn sb against doing sth 或warn sb ,not to do sth 告诫某人不要做某事.如:I warned him to stay there 我告诫他留在那无儿.warn ne of danger警告我危险. he warned us not to go out或 he warned us against going out,他告诫我们不能去.另外.warn sb that 提醒某人….,如: she warned them that there was a wolf outside the room .她提醒他们户外有一只狼.

5.no longer 不再  如:You are no longer a little girl.你不再是个小姑娘了.

同义词组no…any longer表示动作不再延续,后接延续性动词.如:You can’t stay here any longer.你不在能再待在这儿了.

同义词组还有:no more ,not ….any more 表示动作不再重复,后接瞬间动词.如:Paul and Ann aren’t going out together any more. 保罗和安已以分手了.

6.be meant to do sth,应该做某事,特别是应某人的吩咐或根据职责.如:I think the police are meant to protect people.我认为警察的职责就是保护人民.

7.have an effect on…/have effects on…对….有影响.have no effect on….对…没影响,如:It has an effect on his family.那件事对他的家庭产生了影响.

四、学习过程

（一）课前预习

1.课前预习课本P_89-90

2. .课前预习 同步练习与测试 Unit 4 Topic 2SectionC练习

3. 练一练

1. 我们的为了是什么样子?

2. 到目前为止, 机器人还没给人类制造出任何麻烦.

3. 人们对机器人的飞速发展感到惊奇.

4. 一位科学家警告说如果机器人开始独立思考, 他们就不愿做我们的佣人.

5. 也许在人类和机器人之间爆发一场战争.

1. What will our future be like?

2. So far robots haven’t caused any problems for humans.

3. People are surprised at the rapid development of robots, they no longer want to be our servants.

4. One scientist warns that if robots start to think for themselves.

5. Perhaps there will be a war between human beings and robots.

（二）.课堂探究

1. no one 和none 都表示否定,用法有所不同,它们的区别是:

a. no one 用不指人.含有not even one 之意,其后不能接of短语,用作主语时,谓语动词要单数.如:No one knew who took the book by mistake,没有人知道谁误拿了这本书.No one likes a person with bad manners.谁也不喜欢不讲礼貌的人.

b. none 不仅指人也可指物,其后常接of短语,构成 “none of+名词/代词”,结构,当名词是复数时,谓语动词单复数均可.如: “I’m sorry” ,he said to the class, but none of you watched carefully enough.  “很遗憾”他对全班学生说. “你们中没有一个仔细观察过我的动作.注意:----how many people are there in your classroom now?现在你们班里有多少人?----none 没有人.----who is in your classroom now? ---no one 谁现在在教室里?没有人.

Know/say for certain 确切知道/肯定地说.如:How much will the car cost? I can’t say for certain , 这辆车值多少钱?我说不准.I know for certain that Boby is at home.我肯定鲍比在家.

（三） 提高 拓展的练习

1. what are these ______ (牙刷)

2.A team from the UK were the first to successfully _______ (可隆) animal.

3. The government plants to _______ (创造) more jobs for young people.

4. would you like to be human beings’ ________ (serve) if they can think for themselves.

5. we’ll go _____ ______ ______ (只要) the weather is good.

1. toothbrushes  2. clone  3. create  4. servants 5. as long as

（四）自学问题记录：