Module 2 Unit 4 Computers.课件

课件24张PPT。 Unit 4
ComputersWarming up
1. Look at the pictures bellow. Discuss in groups what they have in common with each other? You are asked to use the following expression in your discussion.
I think that …
In my opinion…
I believe that…
Why do you think so?
What’s your reason?What do they have in common with each other?abacushuge computernotebook computerpersonal computercalculator2.According to the investigation only 1% (one percent of ) the middle school students are using computers properly .
3. 新华社北京2002年6月16日电：　今天凌晨2时40分左右，北京市海淀区一非法营业的“网吧”---“蓝极速网吧”发生火灾，目前已造成24人死亡，13人正在医院抢救。
What do you think of this
matter?
What do you think of playing
computer games?“Oh, ye!”The door is lockedforgot everything except the games on fire disaster
I think that …
In my opinion…
I believe that…
I suggest that…
You’d better…
It’s harm to …
Try to use the following useful expressions:
Pre-reading
1.What do you know about the history of computers?
2.How have computers changed our lives?ReadingWho am I 1. Scanning (True or False)1) The writer is a little boy. ( )
2) There was a technological
revolution in 1642 ( )
3) My real father was Alan Turing ,who
built an Analytical Machine ( )
4) At the earlier times, I was very big but now
I changed much smaller. ( )
5) No one could recognize me until I got my
new transistors in the 1960s. ( )
FFFTF6) I was very lonely because there were not so many people knowing and using me. ( )
7) Since 1970s, I have been used by billions of people to deal with information and communicate with each other around the world by the Internet. ( )FT2. Detail reading:The computer began as calculating machine. 1822Alan Turing wrote a book to describe how co..Computers had new transistors and smaller,c..q.1960s1960SComputers were brought into people’s homes1970sComputers connect people all over the world together
I began as a ________ machine in 1642 in ______. In 1822 I ____________ as an Analytical Machine. I ________ the instructions from cards with holes. I know this ________ very simple. Alan Turing wrote a book to ______how computers ______________ to work and built a universal machine to _______any mathematical problem. However, people thought I was ___________ until they discovered I had artificial intelligence. Complete the following passage according to the textcalculatingFrance was built followedsoundsdescribe could be madesolvesimple-minded
As the year__________ , I _____________ smaller and smaller. In the early 1960s, they gave me a family ___________ by a network. I could ________ information with others . Since 1970, I _______________ by billions of people to _______ _______ information and __________ with each other around the world .
have gone byhave been made connectedsharehave been used deal withcommunicate1. totally
2. revolution
3. so…that
4. birth
5. simple-minded
6. go by
7. deal with
8. network
9. truly
10.anywayLearning about language (key) (P19) revolution / network / so …that
went by / totally / truly / simple-minded / Anyway / deal with 2. Complete the passage with some of the words above3. Tick the right word
1. totally2. amazed3. exciting4. excited5. cheaply6. unlucky1. Since then, my family and I have been used by billions of people to deal with information and ….
2. I have truly been built to serve the human race since my birth.Discussion useful structures (P20)1. A new personal computer has been bought by us.
2. Many problems have been found with our new computer.
3. A PC has been built the way we wanted.
4. Our computer has just been joined to the Internet.
5. The computer has been used by us since we bought it.
6. A lot of e-mails have been written on the computer in the past year.2. Change the following sentences into
the Present Perfect PassiveVoice .1. printer
2. hard disk (drive)
3. monitor
4. keyboard
5. modem
6. floppy disk
7. CD-ROMP57 Key2. Complete the sentences ….Difficult sentences (P22)1.I need to shout in computer language to my teammates to give me the ball when I’m open and have a good shot for a goal.
2. Personally, I think the team who won first place cheated, They had a new kind of program, which had just been developed before the competition.3. In a way, my programmer is like my coach. She programs me with all the possible moves she has seen while watching human games.
4. After all, with the help of my computer brain which never forgets anything, intelligence is what I’m all about!
1. It has been reported that children will be offered free education.
It has been reported that free education will be offered to children.
2. It has been said that we will be offered the latest computer science course book.
It has been said that the latest computer science course book will be offered to us.
3. I have been told by Peter that I will be lent his notebook computer for a week.
I have been told that his notebook computer will be lent to me for a week.P57 Using structures
It is / was +v.-ed that reported /said /announced / believed / suggested/ thought/ / proved 1.This type /kind of computer has been specially designed for teachers and students.
2. The needs of the teachers and students have been greatly considered.
3. With the help of computers, you will not find it hard to deal with and share information.
4. Besides, you can easily communicate with people all over the world by Internet.2. Translation (P57)5. It will cost a lot of money to buy a computer for every teacher, but after all it is well worth doing so.
6. She uses the computer so well that she seldom /doesn’t often write with a pen or paper.
7. If a new situation arises, they will make up new programmes.