教学课件：必修2—Unit3.doc

必修2-Unit 3 Page 18 Language Points：
(Translation)
1. have sth. in common with…：和…有相同之处
be in common with…：和…有相同之处
2. compare…with…：与…相比较
3. a calculating machine：计算器
4. It took nearly two hundred years (to do sth.)：花费时间做某事
5. be built as an analytical machine：被制作(组装)为一台分析机
6. cards with holes：有孔的卡片
7. a technological revolution：技术革命
8. from then on：从那时起
over time：随着时间的过去，经过一段时间，一直以来/as time go by随着时间的推移
9. as a result：因此，作为结果
as a result of…：因为…，作为…的结果
10. so that：(1)以至于…(结果状语从句)；(2)为了…(目的状语从句)
so much that…(结果状语从句)
so large that…(结果状语从句)
(1) so…that：以至于…(结果状语从句)
(2) in order that/in order to do…/so as to…：为了…(目的状语从句)
11. share sth. with sb.：和…共享…
share in…：分享…，分担…
12. provide sb. with sth.：提供给某人什么东西
13. be filled with/fill…with sth.：充满
fill in：填写；填充
14. the human race：人类/a human being：一个人

必修2-Unit 3 Page 19 Comprehending：
1. Read the passage and finish the timeline below.
(1) 1642: The computer began as a calculating machine
(2) 1822: The analytical machine was made by Charles Babbage
(3) 1936: The computer grew rapidly both in size and in brainpower
(4) 1940s: The computer had grown as large as a room
(5) 1960s: The first family of computers was connected to each other
(6) 1970s: Computers were used in offices and homes
(7) Now: Computers connect people all over the world together

2. Read the passage again and complete the chart below.

Paragraph 1
Paragraph 2
Paragraph 3

Topic sentence
Over time I have been changed quite a lot
These changes only become possible as my memory improved
Since the 1970s many new applications have been found for me

Supporting details
1. calculating machine
2. analytical machine
3. universal machine
4. PC
5. laptop
1. tubes
2. transistors
3. chips
4. network
5. World Wide Web
1. communications
2. finance
3. trade
4. robots
5. mobile phones
6. medical operations
7. space rockets
8. providing a life of high quality

必修2-Unit 3 Page 20 Discovering useful words and expressions：
1. Find the word or expression for each of the following meaning from the text.
(1) revolution: complete change in ways of thinking, working, etc
(2) network: connected computer system
(3) simplify: to make things easier
(4) calculate: to find the answer using numbers
(5) mobile: able to be moved easily from place to place
(6) solve: to work out the answer to a problem
(7) explore: to travel around an area to find out about it
(8) totally: completely
(9) anyhow: anyway
(10) finance: activity of managing money

2. Complete the passage with the words below.
artificial, technology, intelligent, applications, explore, Web, reality, logically
When my brother was in high school, he was very interested in computers and enjoyed writing programs of his own. He used to download information from the Internet and made good use of it. He liked to explore the World Wide Web and used the Internet to communicate with computer programmers all over the world. When he went to university he studied IT (information technology) and developed a special interest in artificial intelligence. After developing special applications of the computer, he hopes to design an intelligent robot which can think logically and look like a human being, but in reality he has a long way to go.

3. Read the story below and then use the outline to create one of your own.
(Translation)

必修2-Unit 3 Page 21 Discovering useful structures：
1. Look at the following sentence, paying attention to the underlined part.
EXAMPLE: Over time I have been changed a lot.
Can you pick out more than two sentences in the present perfect passive voice from the reading passage?
(1) First as a PC (personal computer) and then as a laptop, I have been used in offices and homes since 1970s.
(2) Over time my memory had developed so much that, like an elephant, I never forget anything I have been told.
(3) Since the 1970s, many new applications have been found for me.
(4) I have also been put into robots and used to make mobile phones as well as help with medical operations.
(5) I have even been put into space rockets and sent to explore the Moon and Mars.

2. Change the following sentences into the present perfect passive voice.
EXAMPLE: We have made a plan→A plan has been made.
(1) My friend has bought a new personal computer.
→A new personal computer has been bought by my friend.
(2) The shop has repaired my computer very quickly.
→My computer has been repaired by the shop very quickly.
(3) An unknown virus has just attacked my computer.
→My computer has just been attacked by an unknown virus.
(4) We have not solved the problem yet.
→The problem has not been solved by us yet.
(5) The company has given its computers away to a local school.
→The computers have been given away to local school by the company.
(6) The scientists have developed a kind of intelligent robot.
→A kind of intelligent robot has been developed by the scientists.

3. Underline the use of the present perfect passive voice in the following poem. Then fill in the chart below.
Look at the way your face has been washed
Look at the way your hair has been combed
Look at the way your shoes have been cleaned
You’d better do them again
Look at the way the flowers have been planted
Look at the way the grass has been cut
Look at the way the paths have been swept
I hope that you’ll come here again
Things that have been done well
Things that have been done badly
The way the flowers have been planted
The way your face has been washed
The way the grass have been cut
The way your hair has been combed
The way the paths have been swept
The way your shoes have been cleaned

必修2-Unit 3 Page 23 Reading, speaking and writing：
(Translation)
Language points
(1) give away：分发；赠与
(2) consist of…=make up of…：组成
(3) be determined(adj.) to do：坚决去做某事；下决心做…
(4) a. in a way：在某种程度上；有点儿
in one way：有几分；在某点上；从某种意义上来讲
in some ways：在某些方面；在某种程度上
b. in the way：造成障碍，挡路
(5) while watching human games：当观看人比赛的时候
After doing some research：在做了一些研究之后
Before having the English class：在上英语课之前
(6) make up：组成；补足，弥补；化妆；编造，编制；铺床
(7) I would really like(想去做，想要) to play against a human team，for(因为，并且，等立连词) I have been programmed to act like them
(8) after all：毕竟
above all：最重要的，首先
(9) with the help of：在…的帮助之下
(10) deal with/do with：处理，对待
what to do with…/how to deal with…：如何去处理…
(11) watch over：看守；监视；照管
in charge of/take charge of：看管，照管

1. Read the passage carefully and fill in the file for Andy
Name
Andy
Size
As big as a human
Ability
Can move and think like a human
Appearance
Looks like a human
Character
Competitive, co-operative
Job
striker

3. Write a description of your android and what it can do. You may draw a picture of it if you wish. Use your notes and the following sample passage to help you.
(Translation)

必修2-Unit 3 Workbook 56 Using words and expressions:
1. Read through the words in the right-hand box below. Use some of them to name each part of a computer in the left-hand box.
The left box
The right box
1. floppy disc
monitor(显示屏)
2. chips
mouse
3. monitor
keyboard
4. modem
hard disc
5. DVD-ROM
floppy disc(软盘)
6. scanner
printer
7. keyboard
scanner(扫描仪)
8. printer
modem(调制解调器modulator-demodulator)

chip

CPU(中央处理机Central Processing Unit)

DVD-ROM(高密度只读光盘
Digital Video Disk-Read Only Memory)

2. Read the passage below and choose the word from the box to complete it. Change the form of the words as necessary.
appearance, electronic, type, arise, virus, logical,
personal, download, possibility
I am a high school teacher of computer science. Personally, I am interested in electronic machines. I teach the students about the different types of computer and their functions. Of course they learn how to download information from the Internet. I also train them to think logically about the information to choose. A problem that does sometimes arise is the possibility of a computer getting a virus. I help my students become aware of how to avoid the appearance of a virus. I love this job, because I am happy to see that my students’ ability to use the computer improves with my help.

3. Translate the following sentences into English, using the words and phrases in brackets.
(1)本热爱足球，他最大的快乐就是自己进球那一刻。(happiness; goal)
Ben loves football and his greatest happiness is whenever he scores a goal.
(2)有了电脑的帮助，你会发现处理和分享信息是不难的。(with the help of; deal with)
With the help of a computer, you will not find sharing information hard to deal with.
(3)杰克上学期考试不及格，从那时起他的父母就不再让他玩电脑游戏了。(from then on)
Jack failed his exam last term and from then on his parents stopped him from playing computer games.
(4)我不愿意每周末都照看我那淘气的侄女，但是我母亲坚持我得这么做。(watch over; insist)
I don’t like to watch over my naughty niece every weekend; my mother insists that I do it.
(5)当我年轻的时候，我妈妈要求我帮她做饭，但是这却在某种程度上帮助了我，现在我能做可口的饭菜啦。(in a way)
When I was young, my mother required me to help her with the cooking, but in a way it has been useful as I am now able to make delicious food.
(6)一个能培养世界级运动员的教练将大受欢迎。(coach; universally popular)
A coach who can train world class athletes will be universally popular.
(7)发射火箭进入太空的信号出了差错， 结果火箭爆炸掉入了大海。(signal; rocket; as a result)
The signal to the rocket going into space went wrong, and as a result it exploded and fell into the sea.

必修2-Unit 3 Workbook 57 Using structures:
1. Complete the following passage with the verbs in brackets, using the present perfect passive voice.
NOTICE TO PARENTS
Dear parents:
We hope you will welcome this news.
Almost 100 computers have been given (give) to us by a local computer company since the end of last year. A decision has been made (make) that we will begin a computer teaching experiment in our school. So every teacher has been provided (provide) with a laptop since the beginning of this term.
Since then, most of our courses have been taught (teach) using computers. A lot of information has been taken (take) from the Internet to help us with our teaching. Besides, a new computer room has been set up (set up) in our school. We started this experiment together with the City Information Technology Centre, which has been completed (complete) recently.
We hope you will help us with this exciting new development in our school.
No. 7 Middle School
12/08/2014

2. Look at this series of announcements from the local government. They need to be rewritten using the present perfect passive voice.
EXAMPLE: The government has decided to give everyone free computer training during the holiday.
→It has been decided to give everyone free computer training during the holidays (by the government).
(1) The teachers have printed the dates of each course in the newspaper.
→The dates of each course have been printed in the newspaper by the teacher.
(2) The government has given more information on its website.
→More information has been given on its website by the government.
(3)The government has chosen the computer science department of the university to organize the training course.
→The computer science department of the university has been chosen to organize the training course by the government.
(4)The university has suggested that they teach the course with the new computer science textbook.
It has been suggested by the university that they teach the course with the new computer textbook.
(5)The computer department has promised (us) that we will be able to use a laptop every day
We have been promised by the computer department that we will be able to use a laptop every day.

必修2-Unit 3 Workbook 58 Reading task:
(Translation)
1. Read the story on the next page, then complete the record of Hua Fei’s performances.
RECORD CARD
HUA FEI
Ability
Expert at high flying exercises; Olympic standard
Performances in 78th Olympics
Wonderful turns, dives, circles and dances
Prize won
Silver medal for high flying exercises
Performances in 79th Olympics
Began very well but failed though no fault of his own
Reason for failure
Parachute failed to open
Treatment
Two new legs and a new bigger head

必修2-Unit 3 Workbook 60 Writing task:
Now prepare your writing for the newspaper. Look at the structure of the sample passage and follow the structure in your writing. Remember to include the information from your questions in your article.
(Translation)

THE END