高中英语人教版 (2019)选择性必修 第四册Unit 1 Science Fiction完整版课件ppt

教学过程

新课

Lead -in

1.show some dynamic pictures of robots.

2.Brainstorming:

What can robots do In our daily life?

While-class

Activity 1

look at the pictures and discuss the questions in pairs.

1.  What jobs are these robots doing? what are the pros and cons of robots doing these jobs?

1）Two robots are serving food at a cafe.

Prons:Maybe the service is cheaper and faster.

Cons:The customs will have communications difficulties, and there is no human touch.

2）A robot is playing the paino.

Prons:The robot can play anything perfectly.

Cons: There is no creativity or emotion involved.

3）A  robotic arm works at a factory

Prons: Simple,repetitive tasks are done at higher speeds more cheaply and accurately.

Cons: Human end up out of work. And there is

no added skill or creativity to the work.

4) A robot band is performing.

Prons:More live music will be available more cheaply.

Cons:It is more like listening to a record, without any excitement and emotion of watching humans perform.

5) Several robots are playing soccer.

Prons: It promotes learning and enjoyment of AI robotics to a wide audience.

Cons:The robot players don’t even know they are

 in a contest and have no desire to win or lose,so

there is no emotional content to the match and

 there is no physical skill or talent  involved.

2. what kind of robots or AI developments do you hope for?

Various answers...

Students look at some dynamic pictures of robots.

The students discuss the questions..

To arouse students’ interest .

Serve as a warm-up for the activities which  follow introducing key vocabulary and concepts.

Activity 2

Listen to an interview and put these statements in the correct order.

The host introduces the guest, a sci-fi expert.

The expert has robots in his home.

As robots become more intelligent,they may also become more dangerous.

The host mentions Asimov's Three Laws of Robotics.

The expert says robots will have occupations such as teaching and nursing.

The line between humans and robots will be more blurred in the future.

The host asks about benefits and problems.

The host asks if there are robots in the expert's home.

In sci-fi stories, robots often become superior and take over.

1 9 4 5 2 7 3 8 6

Students listen to an interview.

Practise listening for gist using a true-to-life interview in natural English.

Activity 3

Listen to the interview again and write down the discourse markers that you hear. Make a note of how each discourse marker is used in the interview. Then compare your answers with a partner.

(Discourse markers are used to organise a text by making sequence,contrast,opinion,

purpose,and so on. Listening for discourse markers can help you understand a text more easily.)

Regular Discourse Markers

Students listen to an interview again.

Practise listening for discourse markers In the interview.

Activity 4

In groups,discuss what the expert thinks of the questions and exchange your own views.

1. What do you know about robot technology? What can robots do ?

 Robots technology has its cons and pros.It can bring great convenience to human beings together with some scientific or moral problems.A robot is a machine that can do a task according to computer programmes or through the use of some kind of controls.

2.What benefit do you think robot or AI will bring? Do you think they will cause problems as well?

The main benefits are that they can do some kinds of work more quickly，better，and cheaper than humans，and that they can take the place of humans when no humans are available or when humans can not do the work. However，they can cause problems,First,what happens if they no longer serve people or stop following orders? Second,there is the possibility that at some point we will have difficulty determining what constitutes a living being and what constitutes a machine.

3.Do you know anything about Isaac Asimov and his famous Three Laws of Robots?what do you think of these laws?

Yes,I do.Isaac Asimov introduced them into most of his science fiction writings to show that robots could

be prevented from harming us or our world.They are not actual scientific laws， but rather guidelines for their

human programmers to follow to keep our world safe.At first glance，the rules seem logical and reasonable，but they also seem out dated.

Changing the topic

Oh， by the way， ...                                 Oh， I remember，

... In early forgot!...                                    That reminds me of...   

What I meant to tell/ask you is......，     

Could I change the subject?

but(perhaps) that’s beside the point.      

The next item on the agenda is...

I think we ought to move on to... Oh，

there was something I meant to tell you.

On the one hand...On the other hand... 

Example:

A：Oh, by the way, I saw a programme about robot doctors last night.It was very interesting.Do you think robots will do more of these important jobs in the future?

B：Certainly.They will probably do most of our labour for us.

C：Maybe，but that's beside the point. In my opinion, robots are dangerous!They are much stronger than we are and may be superior to us in the future.

A :I think we ought to move on to the topic of robot technology. I know the idea of it has been around forever.The ancient Greeks and Chinese both made clever devices that weren't much different than some of the robots we have today.

B：Yes, but the modern idea of intelligent robots that look like humans is only about 100 years old.

C:I think we had better move on to what robots can do.Let's see...there are simple repetitive tasks like factory work and housework.

A:Yes, and I think there will be more complex jobs in the future like in healthcare, education, or entertainment.

B:Oh, there is something else I meant to ask you—does anyone know who even came up with the word“robot”?

C:But that's beside the point. I think we ought to move on to the benefits and dangers of A I to humans and our society.

A:Oh, In early forgot why Asimov's writing was so important—he created the Three Laws of Robotics. Law l,robots can't injure humans or allow

them to come to harm; Law 2, a robot must obey any order a human

gives it as long as it doesn't conflict with the first law; and Law 3,a robot

must protect itself as long as the act of doing so doesn't break the first or second law……

Students discuss the questions.

Students use the expressions to make a dialogue

To change the topic.

Review and confirm all that students have learnt thus far In the unit and allow them to share their own opinions.