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人教版高中英语必修2 unit3 Warming-up & reading


Period 1

Word Puzzle
?

An old calculating machine used in China until now.

An abacus

It is built to solve some mathematical problems. But it

is too big.
?

A huge computer

?

It is a new calculating machine which can solve a large number of mathematical problems.
A calculator

?

It is a personal computer which can solve all kinds of problems and is used widely now.

A PC (personal computer)

?

It is a kind of computer which can be taken conveniently like a notebook.

A notebook computer

What do they have in common?

?

?

Have the computer and Internet become part of your life? How have computer changed our lives? (What can you use them to do? )

I use the computer or Internet to:
?
? ? ? ?

?
? ?

type my homework draw pictures play games communicate with my friends. gather related information for my lessons buy the things I like, listen to music watch movies.

What else do you think the computer and Internet will help you to do ?

Predicating

Who am I ?
The main idea of the passage: history This is a short ________ of the ______________ of computers. development

Find out three sentences to support who the speaker is in the story. 1.Then in 1822 I was built …. (Itself was the first design of a computer)
2.My real father was Alan Turing. (He designed the first real computer.) 3.However, people thought I was simple-minded until…., (It has artificial intelligence.)

True or False?

F F T T

F

1. In 1642 I began as a calculating machine and could solve any mathematical problem. 2. My real father was Charles Babbage, who wrote a book and build me in 1936. 3. After I got my new transistors in the 1960s, I became smaller but cleverer and quicker. 4. I was brought into people’s homes in the 1970s. 5. Since my birth I have been built to take the place of human race.

A chain of events showing the development of computer

Changes of the machine

Timeline
1642: A calculating machine was __________________________ _______________________________ used in France. ____: 1822 the Analytical Machine was Made by Charles Babbage. Alan Turing wrote a book to 1936:___________________________ describe how computers could _______________________________ be made to work. _______________________________ 1960s:__________________________ Computers have new _______________________________ transistors and became _______________________________ smaller.

1960s the first family of computers _____: was connected to each other. Computers were brought into 1970s: _________________________ people’s homes. _______________________________ Now:___________________________ Internet --Computers connect _______________________________ people all over the world together. _______________________________

Explain how the computer technology has been developing and complete the following chart. Then give a brief oral presentation on the development of computer technology with the help of the chart.

Changes of the machine
Calculating machine Analytical machine Universal machine

PC (desktop/ notebook)

artificial intelligence

Internet

?

Group discussion and individual(个体的) report
1.What will computers look like in the future? 2. What can they do?

a short essay with 80 to 100 words
(use metaphors(比喻) if possible)

The computer of the future The computer is the most exciting invention of the 20th century. Over the years it has changed a lot. I think the future computer will look like a pocket book which can be carried everywhere with the owner. look like What the future computer will It will have no keyboard or mouse. What the owner needs to do is to tell the computer his or her wishes.

The computer of the future The computer will act as the owner’s best friend. It will share joy What the with computer and help and sorrow futurethe owner can do overcome difficulties. Besides, it is also a doctor that will take very good care of its owner. makes conclusion Certainly theafuture computer will be of different shapes and kinds and there will be more functions.

common

1. most widely known; ordinary:

He is a common sailor.

2. have nothing/little/something/ a lot in common
At first, I think we only had one thing in common, but suddenly I felt we had a lot in common. The two brothers had everything in common in their manners, but the two sisters have little in common.

They have nothing in common with one another.

3. have…. in common (with), share with
We just had nothing in common with each other and I couldn’t communicate with his dull business friends..

4. in common : equally with or by all.
He and his bother own the firm in common.

5. in common with : =like
In common with many other classmates, I like sports. In common with (like) many educated people he prefers classic music to jazz.

2. I followed instructions from cards with holes. follow: take or accept I followed my teacher’s advice and paid more attention to my spoken English. You will spend a lot if you always follow the fashion. We should follow the example of the students who behave themselves. Follow the road signs while driving.

Can you follow what I am saying?
in the following year =in the next year=in the year that follows

I began only as a calculating machine in 1642 in France. only Then I n 1822 I was built was an Analytical Machine by Analytical Charles Babbage. I followed instructions from cards with holes. I know this sounds very simple, but at that

technological time it was a technological

revolution! My real father

was Alan Turing, who in 1936 wrote a book to describe how computers could be made to work, and built a

“universal machine” to solve any mathematical problem.

Earlier I was not very big, but then I became huge! However, people thought I was simple-minded until they discovered I had artificial intelligence.” Artificial! I din’t know what they were talking about. Anyway, let’s go back to my history. Then I was the size of a large room! As the years have gone by, I have been made smaller and smaller.

No one could recognize me after I got my new transistors

in the 1960s . There were times when my size was totally in the 1960s
changed. I became small and thin but I got cleverer and

cleverer , quicker and quicker. And my memory became
so large that I couldn’t believe it! But I was always so that

lonely standing there by myself, until in the early 1960s,
They gave me a family connected by a network. I could

share information with others and we could talk to
each other.

At about the same time we learned to talk to humans

using BASIC. I was brought into people’s homes in the
1970s. Since then, my family and I have been used by

billions of people to deal with information and
communicate with each other around the world by

the Internet. I love being used to connect people who
aren’t close enough to speak to each other. I have

truly been built to serve the human race since my birth.

only

: alone in kind or class; sole. : without anyone or anything else; alone: : at the very least:

Only I could do that experiment in that lab. I could only do that experiment in that lab. Only in that lab could I do that experiment .
room for only one passenger If you would only come home. The story was only too true. I only work here.

He was able to get back to work only when the war was over. Only when the war was over, was he able to get back…

analysis 1. The _________of the samples on the murder spot showed some valuable clues to the police.
analyse 2. Can you _________ the following sentences?
Analytical 3.Last week our company bought an ________

Machine.
4. The scientist _________the milk and found it analyzed

contained too much water.

analytical

analysis analyzer (analyser) analyze (analyse)

analyze vt. 分析, 分解
The scientist analyzed the milk and found it

contained too much water.
科学家分析了一下牛奶,发现里面含水分过多。

analysis n. 分析,分解 ( pl. analyses )
analyzable adj. 可被分析的, 可以分解的

technology
(adj.)

technique(n.)

(person) technologist

technical

1.This company is in great need of many____________. technologists

technical 2.To build this machine,you must have ________ability.
technique 3. Do you know the knowledge of agricultural_________.

simple-minded : showing very little intelligence Richard is smart but he has a lot of simple-minded friends.

absent-minded
open-minded

心不在焉的
没有偏见的

narrow-minded
single-minded

心胸狭窄的
一心一意的

strong-minded
weak-minded

意志坚强的
低能的,愚蠢的

noble-minded

思想高尚的

No one could recognize me after I got my new transistors in the 1960s.(or in the 1960’s) 在20 世纪50 年代 在1950年 在他40多岁时 in/during the 1950s/1950’s in 1950 in his forties

It’s not rare in _____ that people in _____ fifties D are going to university for further education.

A. 90s;the
C. 90s; their

B. the 90s;/
D. the 90s;their

And my memory became so large that I couldn’t believe it! The room is so large that it can hold at least fifty people.--This is such a large room that it can hold at least fifty people.---This is so large a room that it can hold fifty people. The weather is so fine that we all want to go out. It is such fine weather that we all want to go out. The computers are so useful that everybody wants to own one. They are such useful computers that everybody wants to own one.

9.alone adj./adv. : by oneself, without others lonely adj. : unhappy because one is always away from his family or friends
1.) I am alone, but I never feel lonely. 2.)The old man lives alone in the lonely small

mountain village.
3.) We have no idea why he left the company.

Tom alone knows the secret.

I love being used to connect people who aren’t close enough to speak to each other.
love doing sth. some other words followed by doing: enjoy, mind, finish, admit, advise, consider, excuse, imagine, keep, include, risk, suggest, give up, put off, can’t help, prevent, practise, insist on etc. He admitted being stolen on the way to the company.

Homework:
1. Read the text with the tape after class and retell the history of computer. 2. Learning about language P19 Ex 1.2.3; P57 Ex 1.2


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