Unit 3 Computers reading

课件13张PPT。Unit 3 Computers
Who Am I?计算机器
分析机
穿孔卡
技术革命
通用机器
数学问题
人工智能
晶体管
存储容量
电子管
用途calculating machine
analytical machine
card with holes
technological revolution
universal machine
mathematical problems
artificial intelligence
transistor
memory
tube
applicationNew words and expressionsWhat is the main idea of the passage?
This passage is about _________________________.
the development of computersDetailed readingOver time I have changed quite a lot.These changes only became possible as my memory improved.Since the 1970s many new applications have been found for me.Find out the topic sentence of each paragragh
What is a topic sentence?
1. A topic sentence tells the main idea of a paragraph.
2. A topic sentence is usually the first or last sentence of a paragraph.
supporting detailsParagraph 1Over time I have changed quite a lot.Calculating machine → Analytical machine →
Universal machine → PC → laptopParagraph 2These changes only became possible as my memory improved.Tubes →Transistors→ Chips → Network → World Wide WebParagraph 3Since the 1970s many new applications have been found for me.Communications Finance Trade Robots
Mobile phones Medical operations Space rockets
Providing a life of high qualityTask 2 Scanning (finish Ex.1 on page19)The computer began as a calculating machineThe computer grew rapidly both in size and in brainpower.The computer had grown as large as a room.1960sComputers were used in offices and homes.Computers connect people all over the world together.1642:_____________________________________
1822:The Analytical Machine was made by Charles Babbage.
1936:_______________________________
___________________________
1940s:_________________________________
_____: The first family of computers was connected to
each other.
1970s:_________________________________
Now:_____________________________________
Changes of the machineCalculating machineAnalytical machineUniversal machineMachine with artificial intelligenceMachine with new transistorA family connected by a networkA family used by the InternetretellTask3 Retelling
I _____ as a calculating machine in 1642 in France. In 1822 I was ____as an analytical machine. Then in 1936 I was _____ to ____ as a universal machine. As the years have___ ___, I have been made ______ . There were times when my size ______ changed. And my memory became _____ large _____ even I couldn’t believe it. In the 1960s they gave me a family_________ by a network. I was able to _________________with others _______ the World Wide Web. Since the 1970s many new applications ______________ for me.gone bysmaller totallythatconnectedhave been foundshare my knowledgeso beganbuiltmadeworkthrough1. Where were you in 1642?2. What happened to you in 1822?3. What were you called in 1936?4. What did you get in 1960s?5. What happened to you in 1970s?
InterviewChoose one student as Mr./Miss Computer,
and the other students as reporters. The reporters may ask the following questions:Some other questions will be better. Read the passage again. Underline the sentences that you do not understand and try to solve the problems using context clues and the dictionary.
Try to finish Ex.1 & 2 on P20.Homework
Bye-bye !
In pairs guess the meaning of the following new words from the reading passage. Then check your guesses using a dictionary.
technological revolution
simplify application
personal solve
reality store
happiness goal
totally explore
logically anyhow
根据构词法猜测词义
The meaning of the words in group A can all be guessed from their formation. Each pair of words has the same root（词根）.
technology technological
simple simplify
person personal
real reality
happy happiness