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b2 unit3全单元课件

发布时间:2013-12-17 13:30:16  

人教课标 高一 必修 2

贵州省思南中学 许义怀编辑


mouse speaker



scanner hard disc printer USB flash disc

Label each part.
monitor 1
hard disk
2 6






Warming up 1. Look at these pictures. In pairs discuss
what they have in common. 2. What do they tell you about the development of computers? 3. What do you think will be the next development?

Riddles (谜语)
I am very old now. I was born in China. Many people used me for calculating in the past, but now I am a bit lonely because they don’t like me now. Do you know who I am?


I can be used for calculating. Besides, I can also be used for watching DVD, sending e-mail and communicating through the Internet. However, I am not a PC, because I’m small enough for you to take me with you. Do you know who I am?


I am so small in size that I can fit in your hand. I usually have a small screen usually bigger than a digital phone, however, smaller than the smallest laptop, I’m a great way to store telephone numbers, access the internet, make calculations, and so on. Do you know who I am?

Personal Digital Assistant

I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems. Do you know who I am?


I am very big. Scientists use me to solve some mathematical problems. Do you know who I am?

huge computer

I’m a machine that works automatically. I can do a wide variety of tasks, especially suitable for doing jobs too boring, difficult, or dangerous for human beings. Do you know who I am?


I’m a small, relatively inexpensive computer designed for an individual user. I’m based on the microprocessor technology. At home, people use me to surf the Internet and play games. Do you know who I am?

Personal Computer

Can you tell the development of computers?


huge calculator computer


What’s next?
robot PDA


In pairs discuss what they have in common?
1.They can be used for calculating. 2.They can deal with maths problems. 3.They are our friends. 4.They are useful and helpful.


1 look at the pictures and the title of reading passage. Predict what is going to be about.
2 Do you know in what ways computers are used today? Work out a list and compare it with your partner.

search for …

see movies

listen to music

read books and magazines

send emails to friends

download music and films

buy things on line

play games on the computer

look at photographs

on the computer

draw pictures

use a computer

for school work

take part in
chat groups

Work in pairs. Try to put these inventions in an order according to the time when they appeared. Then read the passage quickly and check to see if you were right.
( 2 analytical )


(5 ) laptop (1 ) calculating machine (6 ) robot (4 ) PC (3 ) universal machine



1. Who is the speaker in this s

A computer.

2. Write down three sentences from
the story to support your idea.

1) I was built as an Analytical
machine by Charles Babbage.

2) My real father, Alan Turing, …

3) I was always lonely standing there by
myself, until in early 1960s they gave me a family connected by a network.

Match the main ideas and the paragraphs. These changes only became Para 1: possible as my memory improved. Para 2: Since the 1970s many new applications have been found for me. Para 3: Over time I have been changed quite a lot.

Choose the main idea of this passage. A. The computer wants to find “who he is”. B. The function(功能) of the computer. C. The computer becomes popular around the world. D. The history and the applications of the

Fast reading
1. Where were you in 1642?
In France. 2. What happened to you after nearly two hundred years? I was built as an Analytical Machine by Babbage.

3. What were you called in 1936?

A universal machine.
4. What happened to you in the 1970s?

I have been used in offices and homes.


我是谁? 经过一段时间我已经被改变了很多。1642年我在法国 诞生时是一台计算机器。尽管当时我还年轻,但是我能 简化一些复杂的数学题。我发育缓慢,差不多到了两百 年之后,查尔斯.巴比奇才把我制成了一台分析机。在 操作员用穿卡孔为我设计程序后,我能够进行逻辑“思 考”,并且能够比任何人更快地算出答案。那时这被当 作是一次技术革命,也是我“人工智能”的开始。在 1936年,我真正的父亲艾伦.图灵写了一本书,讲述了 怎样使我成为一台“通用机器”来解决任何数学难题。 从那时起,我在体积和脑容量方面迅速成长。到二十世 纪四十年代,我已经长得像一间屋子那么大,我不知道 是否还会长得更大。但是,这个现实也使得我的设计者 担心。随着时间的推移,我被弄得越来越小。自二十世 纪七十年代以来,我一直被用在办公室和家庭里,先是 用作个人电脑,后来又做成便携式。



这些变化只是随着我的存储能力的不断提高才成为可能。 最初是被存储到电子管中,以后是晶体管上,后来是非 常小的芯片上。因此,我已经完全改变了我的形状。随 着我年龄越来越大,我也变得越来越小。随着时间的推 移,我的记忆能力发展得如此之快,就像一头大象一样, 从来不会忘记告诉我的任何事情!我的存储容量变得如 此巨大,连我自己都不能相信!但是我总是孤孤单单地 站在那里,直到二十世纪六十年代初,人们才给了我一 个用网络联成的家庭。我能够通过万维网和其他人分享 我的知识。 从二十世纪七十年代起,我又被开发了很多新的用途。 我在通讯、金融和商业领域变得非常重要。我还被放在 机器人里面,被用来制作移

动手机,并且用来帮助作医 疗手术。我还被放置在航空火箭里去探测月球和火星。 不管怎样,我的目标是给人类提供高质量的生活。现在 我充满了幸福感,因为我是人类忠实的朋友并时时给他 们提供帮助。

1642 The computer began as a calculating machine.

1822 The analytical machine was
made by Charles Babbage. 1936 The computer grew rapidly both in size and in brainpower.

Computers had grown as large as 1940s a room. The first family of computers was 1960s connected to each other.

1970s Computers were used in offices and homes. now Computers connect people all
over the world together.

Early days Name Function Poor A calculating Simplify _________ machine difficult sums Develop An ________ Think logically analytical ment machine and produce an answer quickly A _________ Solve difficult universal machine ____________ Strong mathematical __________ problems

Network times
Tubes Large Transistors ____________ Small Small chips Develo Communication _____________ Narrow pment Applications Finance __________ Trade ________ Robots Wide Mobile phones Medical operations _______________ Space rockets ________ Memory stored in

Paragraph 1 Topic

Paragraph 2 These changes only became

Over time I changed quite
a lot.

sentence have been

possible as my


Paragraph 1 Calculating Support machine ing Analytical machine details Universal machine PC laptop

Paragraph 2 tubes transistors chips network World Wide Web

Paragraph 3
Topic sentence Since the 1970s many new applications have been found for me.

* communications *finance * trade *robots Supporting * mobile phones * medical operations details * space rockets * providing a life of high quality


completely totally 2 revolution complete change 3 simplify 4 calculate to make things easier to find the answer using numbers


mobile solve

can be moved easily
from place to place to work out the answer to a problem

8 9


to travel around an
area to find out about it completely anyway


10 finance

activity of managing

The first generation (1945-1956)

The history of computers

the second generation (1956-1963)

the fourth generation (1971- )

the third generation (1964-1971)

1. What is PC? Speak the name on the
whole. It means: personal computer.

2. What is IT?
Information Technology.

3. What is CD-ROM? Compact disc read-only memory.

4. What is PDA?
Personal digital assistant.

5. What is W.W.W? World wide web. 6. 科学技术。 Science and technology. 7. 人工智能。 Artificial intelligence. 8. 笔记本电脑。 Notebook computer.

9. Who was the first person to devise the
first computer? Charles Babbage invented an

analytical machine in 1822. 10. Who was the computers’ real father?
Alan Turing.

How computers have
changed our lives?

List of uses of
computers emails

What people did before
computers write letters typewriter

word processing write by hand or search for information look in encyclopedia, library, etc

List of uses of

What people did before

watch DVDs


go to the cinema and put into files and folders

store information write everything down

1. calculate v. work (sth.) out by using
numbers e.g. calculate the cost of sth. calculator n. 让我们一起回忆一下以 or 结尾的词吧:

visitor, survivor, competitor, editor …

2. analytical adj. 分析的, 解析的

analyze vt. 分析; 研究
analogy n. 相似; 类似 analysis n. 分析; 研究 analyst n. 分析家 analytic adj. 分析的; 分解的

3. artificial adj. 人工的, 人造的
artificial flowers/limbs/pearls

artificial intelligence 人工智能

4. as a result 结果;终于;因此 He studied hard. As a result he passed the exam. He made one big mistake, and lost his job as a result.

as a result 意为:_____, 结果

as a result of ... 意为“由于……的结

Mary was late as a result of the snow.

1. Jackson couldn’t work any longer

_____________ the car accident. as a result of 2. We helped each other in studies, and __________ we became good friends. as a result

5. totally adv. 整个地; 完全地 totally blind 全盲 total adj. 完全的; 整个的 total silence 寂静无声 in total 总共

6. anyhow adv. 无论如何,即使如此 I couldn’t think of the name of that man anyhow. Anyhow I must tell the truth. anyhow 可位于句首,也可位于句末。

1. 房子锁着,我无论如何也进不去。 The house is locked and I cannot get in anyhow. 2. 不管怎样,我们设法得到了我们想要` 的。 We managed to get what we wanted, anyhow.

7. explore

v. 探索;探测;探究

The scientists are exploring every part of the island. No one arrived at the forest but Tom wanted to explore it.

We must explore all possible ways to increase food production.

explore的意思是“探索,探测,探究”, 后直接跟宾语。 explorer n. 探险家,探测者

根据括号内的提示完成下列句子。 1. Jim is a young explorer and he _______________________ (喜欢探险) loves / is fond of exploring very much. 2. The oceans _____________________ have not yet been fully __________(尚未被充分勘探). explored

1. I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage. 【分析】 该句是一个由and连接的并 列复合句。and后的分句的结构是:it took ... before ...。before引导时间状语 从句。

【翻译】 我发展缓慢,差不多两百年 之后,查尔斯· 巴比奇才把我制成了一 台分析机。 【仿写】 过了两年我们才又见了一次 面。 _________________________________ It took two years before we saw each ___________ other


2. By the 1940s I had grown as large as a room, and I wondered if I would grow any larger. 【分析】 这是一个由and连接的并列 复合句。and后的分句中,I wonder if ... 是一个常用句型,意为“我想知 道是否……”,常用来委婉地提出疑 问或请求,也可用whether代替if。如:

As time went on, Mary began to wonder if / whether John had forgotten their date.

【翻译】 到二十世纪四十年代,我已经 长得像一间屋子那么大,我不知道是否 还会长得更大。 【仿写】 我在想这么多年后,我还能否 认出Philip。 ____________________________ after all I wonder if I’ll recognize Philip these years.

3. Over time my memory has developed

so much that, like an elephant, I never forget anything I have been told! 【分析】 此句中包含一个由 so ... that _________ 引导的结果状语从句,在 该从句中又包含一个省略了关系代词 _____ 的定语从句:I have been told, that anything 修饰先行词 _________。

【翻译】 随着时间的推移,我的记忆能力 发展得如此之快,就像一头大象一样,我 从来不会忘记告诉我的任何事情! 【仿写】 他在这么短的时间里做了这么多,几乎每 个人都认为这是个奇迹。 He has done so much in so short a time that ________________ almost everyone thinks that it is a miracle.

4. And my memory became so large that
even I couldn’t believe it! 句型: so … that … 如此 …… 以致于 …… 与 too … to … 句型可相互转换

And my memory became too large for me
to believe it. e.g. He is so old that he can’t carry the box. He is too old to carry the box.


The stone is so heavy that no one can lift it. so that 既可以表结果, 也

so ... that ... 结构的so + 形容词/副词位 于句首时, 句子用倒装结构。 So hard does he work that he seldom goes home.

5. But I was always so lonely standing there by myself, until in the early 1960s they gave me a family connected by a network. 【分析】 本句是一个复合句。主句为I was always so lonely standing there by myself,其中standing there by myself 是动词-ing形式短语作状语;

从句是由 _____ 引导的时间状语从句, until 其中connected by a network是过去分 family 词短语作后置定语,修饰 ______。 【翻译】 但是我总是孤孤单单地站在 那里,直到二十世纪六十年代初,人 们才给了我一个用网络联成的家庭。

6. I have also been put into robots and used to make mobile phones as well as help with medical operations.

mobile adj. 可移动的; 机动的
He has a broken leg and isn’t very mobile. 他的腿摔伤了, 活动不 便。

She is much more mobile now that she has a car. 她现在出去方便多了, 她有了一辆汽车。

mobile home 可移动的房子

mobile phone 移动电话

help (sb.) w

ith sth. 协助(某人)做某事 e.g. A man is helping the police with their enquiries. 有一男子在协助警方进行调查。

7. I am now truly filled with happiness that I am a devoted friend and helper of the human race!
that引导同位语从句,具体说明 happiness的内容。that是连词,在从句 中不充当任何成分。英语中用that引导 同位语从句的情况比较常见,但有时也 可以用连接副(代)词 how, when, where, whether等来引导同位语从句。

注意:if, which 不能引导同位语从句。

I had the impression that she chose her words with care. 在我的印象中,她选词很小心。 I heard the news that our team had won. 我听到了我们队获胜的消息。 l have no idea when he will be back. 我不知道他什么时候回来。 He must answer the question whether he agrees to it or not. 他必须回答他是否同意这样一个问题。

Learning about language

Discovering useful words and expressions 1 Find the word or expression for each of the following meanings from the text. 1) complete change in ways of thinking, working, etc. revolution 2) connected computer system network 3) to make things easier simplify 4) to find the answer using numbers calculate

5) can be moved easily from place to place mobile 6) to work out the answer to a problem solve 7) to travel around an area to find out about it explore 8) completely totally 9) anyway anyhow 10) activity of managing money finance

2 Complete the passage with the words below.

artificial technology intelligent Web applications explore reality


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
explore liked to ______ 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
technology (information __________) and developed a

special interest in ________ intelligence. After artificial
applications developing special __________ of the computer, intelligent he hopes to design an ________ robot which

logically can think ________ and look like a human
reality being, but in ______ he has a long way to go.

3 read the story below and then use the
outline to create one of our own. My Story
When I was young I was very crazy about table tennis. At the time my interest began. I was playing this game with my friends every afternoon. Over time I wanted to win the first place at school sports meeting. As time went by I tried my best to practice playing table tennis.

By the time I was 15, my dream had come true. I won the first prize in our school. As a result I became interested in making friends with others through playing the game. From then on I feel much happier with friends. Now I get on well with my new classmates. As I grow older I realize my life will be brighter.


ng useful structures The Present Perfect Passive Voice 一、现在完成时的被动语态构成: have/has been + 动词的过去分词 表示发生在过去某个时间的动作到现在为止 已经完成的某个被动的动作。例如: 1. The new bridge over the Yellow River has just been completed. 2. Many more buildings have been built in the past ten years.

3. The dirty clothes have been washed.

4. The plan has been studied by the
experts for three times. 5. The child has been taken care of by Grandma Wang all these years.

二、现在完成时的被动语态主要用 于以下情况:
1. 主语是行为动作的承受者。如: The Temple of Zhang Fei has been rebuilt.



2. 说话时已完成的动作或出现的结果。 The door has been locked. 门已经被锁上了。 (我或别人现在进不去) 3. 动作或状态始于过去, 持续到现在, 并可能持续下去。如: He has been told about it for many times. 有人告诉他这事很多次了。 (可能还会有人告诉他)

4. 用在时间和条件状语从句中, 表示 将来某时已完成的动作。如:

We’ll start as soon as the work has
been finished. 工作一完成我们就立即动身。

1.固定搭配中的介词在被动语态中 不能省略。例如: He has thought of a way of solving the

=A way of solving the problem has

been thought of.

2. break out/ happen/ take place/ arrive/ become/ die/ disappear etc

The accident which happened yesterday surprised me.

3. 带双宾语的动词give /send/bring/

take/teach/show/ tell/ make/ sing/ write/
sell/buy/ ask/ pay/ borrow/ lend/ hand/

offer/provide/ pass/get/promise 等变被动语

I have given him the book.
=He has been given the book.

=The book has been given to him.

He has offered us the most comfortable

=The most comfortable service has
been offered to us by him. =We have been offered the most

comfortable service by him.

1 Pick out the sentences in the present perfect passive voice from the reading passage. Example: Over time I have been

changed a lot.
1. First as a PC (personal computer) and then as a laptop, I have been used in offices and homes since the 1970s.
2. Over time my memory has 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.

1. A new personal computer has been bought by my friend.
2. My computer has been repaired by the shop very quickly.

3. My computer has just been attacked by an unknown virus.
4. The problem h

as not been solved by us yet. 5. The computers have been given away to a local school by the company. 6. 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 Things that have been done well done badly

the way the flowers have been planted. the way the grass has been cut. the way the paths have been swept.

the way your face has been washed. the way your hair has been combed. the way your shoes have been cleaned.

Read this poem aloud, paying attention to the rhythm and intonation. Then write your own poem.

Look at the way the table has been laid ______________________
Look at the way the glasses have been placed ______________________

Look at the way the food has been cooked ______________________
_________________________ You’d better do them again.

your bed has been made Look at the way ________________________ your carpet has been swept Look at the way ________________________ Look at the way your shoes have been tidied ________________________

_________________________________ I hope that you’ll come here again.

Using structures

Answer key for exercise 1 on page 57
have been given,

has been made,
has been provided, have been taught, has been taken, has been set up, has been completed

Answer key for exercise 2 on page 57
The dates of each course have been printed in the newspaper by the teachers. More information has been given on its website by the government. The computer science department of the university has been chosen to organize the training course by the government. It has been suggested by the university that they teach the course with the new computer science textbook. We have been promised by the computer department that we will be able to use a laptop every day.

Answer key for exercise 3 on page 57
The prizes this year have been awarded to four students for their outstanding work. It has been decided that the prize for hard work in science will be presented to Wang Xiaoding. Wu Lei has been given the prize for getting the highest scores in the tests all year. Her hard work deserves this prize. Li Li has been given the prize for her excellent work in English. Among other things she wrote and put on a play for the other classes in the school. It was highly praised.

Zhang Hong will receive the prize as the best behaved student in the class. Her excellent behaviour has been noticed many times. We are glad to announce that she has been given a place to study maths at Peking University. The local leaders of our area have been so impressed wi

th the work of these four students that they have offered each of them a sholarship of five thousand yuan to help them with their studies. Thank you!

Using language

Listening and speaking

Listen to the whole text and write down the main idea in one sentence. Two students are talking about

information technology.

Listen to Part A and fill in the chart below. Then do the same with Part B.

Part A
What does IT include? computers, books, radio and TV

What is the most popular form of IT?


Part B

Which form of IT describes the skills of a sport best Which form of IT Has the most functions?




Listening text

L= Laura Part A

D= Dave

D: Hi, Laura. It’s good to see you because I’m so bored . My homework is about Information Technology but I know everything there is to know about it.

L: Come off it, Dave. I think I might know
more than you.

D: OK. Let me test you! Here’s the first
question. What’s information technology? L: Gosh, that’s easy! It’s computer, of course. D: Ah! That’s just where you’re wrong.

It includes books, radio and TV as well.

L: Really! Well, I never. D: Question number 2. Which is the most popular form of IT in the world? L: Well, that must be computers this time. D: No, it’s books. Think of all those people in developing countries without computers. Their only form of IT is books! L: Oh dear! I’m not doing very well.

Part B
D: Here’s the third question. Which form

of IT is the best for describing the skills of a sport? L: It must be the radio. D: Actually, it’s not. The best descriptions are on the TV because you can not only

hear the technical language, but also

see how it happens.
L: Goodness! Wrong again!

D: Here’s the last question. Which form
of IT has the most functions? L: This time I must be right. It’s the computer, of course.

D: Yes. You can watch a film, replay a match, communicate with friends through the Internet, get information and find out what’s going on in the world. L: Oh dear! Three questions wrong out of

four. Perhaps I don’t know as much
about IT as I thought I did!


What are the advantages and disadvantages of each form of IT? In small groups discuss this question and put your ideas on to the chart. Then decide when each kind of IT is most useful.

Use these reasoning expressions in your discussion. The advantage / disadvantage is …. I think / don’t think that …. Give me your reasons. What makes you think so? I think …. because (of) ….

Let’s decide… As/Since…, I think…. I agree / don’t agree … because …. First .… Second …. I’ve decided that…. I believe that …. Let’s make a decision.

Type of IT
Computer TV Book

You can find information.


It is not always accurate. You can both You cannot listen and write to watch. friends. You can get Sometimes it information. is out of date.


You can listen You cannot to English.

watch a film.

Reading , speaking and writing

Andy---The Android
1. What does Andy look like? What can it do? Andy looks like a human. It is designed to play football games and can move and think like a human. 2. What part does Andy play in the football team? He’s a striker.

Andy is part of an android football team. Andy is as big as a human. In fact, Andy looks like one too. Andy is a striker on the football team. Andy can run very fast.

Andy’s computer chips help him to move
and think like a human.

1 Read the passage carefully and fill in the file for Andy. Name: _____ Andy Appearance: _________________ looks like a human Size: ________________ as big as a human Character : competitive, co-operative ______________________ Ability: can move and think __________________ ___________ like a human Job: ______ striker

2 Create your own android. Fill in the file, and compare with your partner.
My own robot Yanyan Name: ________ small woman with four arms Appearance:_________________________ same height as a ten-year-old Size: ____________________________ patient and kind Character: ____________________

Ability:_____________________________ can finish reading some books in

a few minutes and print out the ___________________________________
information when needed _____________________ Job: homework helper _________________

Speaking In small groups, discuss how to design your own android. The following questions can help you.

Sample dialogue:
A: What kind of robot have you decided to make? B: I've decided that we should have a homework android. It could do all our work after class and leave us more time to do football. A: OK. But what do you think it should look like?

B: In my opinion, it should have four arms to carry the books, a large head to remember all the lessons and a printer to write out the answers. What do you think? A: Well, that sounds sensible. Perhaps it could also put all the exercises into specially marked boxes for each

subject so we could find them quickly. What about putting that in its stomach area? B: Do you want it to be a man or a woman? You can choose. A: I’ve decided it should be a girl. B: What’s your reason? A: Girls are so hard-working. B: Sounds good to me! Let’s draw it now!

Language points about Using Language. 1. What are the advantages and disadvantages of each form of IT? 1) advantage n. 优点; 优势; 有利条件 都市生活有几个优点。 There are several advantages in city life. 2) disadvantage n. 缺点, 劣势; 不利条件 take advantage of 利用 be to your advantage 对…..有利

2. signal vi. & vt. 发信号 n. 信号 1) A red lamp is often a danger signal. 红灯常常是危险的信号。 2) The police signaled the traffic to move forward slowly. 警察向来往车辆打信号,示意缓慢前行。

3. Personally, I think the team who won first place cheated.

personally adv. 就自己而言

; 就我个人来说 She didn’t like the plan, but personally I see nothing wrong with it.
她不喜欢这项计划, 但我本人觉得没什么不 好的。

person (n)--personal (adj.)--personally (adv)

4. in a way in a/one way 在某种程度上, 从某种意义上说 1) In a way, you’re right. 从某一点上看你是对的。 2) The work is well done in a way. 这工作就算做得不错。 3) In a way, I like this new textbook very much.从某种程度上说, 我很喜欢这本新 教材。 4) I’m afraid your bike is in the way. 看来你的自行车挡着道了。

way 常见短语
in the way 挡……的道;妨碍 on the/one’s way (to) 在(去……)的路上 by the way 顺便提一下 in no way 决不 all the way 自始自终;完全地 in this way 用这种方法

5. arise (arose, arisen) vi. 出现;发生 1) An opportunity has arisen. 机会来了。 2) A new difficulty has arisen. 出现了新困难。 3) The problem may not arise, but there’s no harm in keeping our powder dry. 问题不一定会发生, 但有备无患并无害 处。

6. with the help of 在……的帮助下 With the help of the teacher, I have made rapid progress in my English study. 在老师的帮助下, 我的英语进步很快。

7. deal with

处理;安排;对付 1) I have a matter of importance to deal with. 我有要事要处理。 2) I think we should work out a strategy to deal with this situation. 我想我们应该制订出一项行动计划,用 来对付这种情况。

8. watch over 看守; 监视 They were watched over by three policemen.

watch out (for)
watch for sb./sth.

当心; 注意

keep a watch on


under the close watch 在严密的监视下

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 sample passage on page 24 to help you.

Sample writing My robot
My robot’s name is Yanyan. It is a 321 model android. It works for me and looks after my library. Its job is to store all the books that I borrow from the library or from school. Of course Yanyan’s brain is as large as mountain so work like that is no trouble at all. Yanyan really eats and remembers books just like people eat food.

I need Yanyan to remember all these books, so it can help me do my homework. I want to go to a key university but finding the information I need is hard work. So Yanyan can help me. This leaves me more free time to play sports and talk to my friends. It is the most important thing for me and my family. My father says my robot may not be cheap but it really helps me with my homework.

Summing Up
Write down what you have learned about Computers.

From this unit, we have learned about
a little more of the history and development of computers and their applications. Understanding the history of computers will help us to see that there will be many changes in the development of computers. We also learned that computers are very important in

everyday life. Even so, we should use computers in the right way.

From this unit you have also learned

useful verbs: calculate, simplify, solve, explore, download, type, arise, mop, signal, spoil …. useful nouns: revolution, technology, intelligence, reality, tube, niece, application, finance, rocket, goal, happiness, virus, type, coach, appearance, character, mop, signal, operator, sum ….

useful expression: have …in common, calculating machine , work out , technological revolution, artificial intelligence, go by, from then on, as a result, a life of high quality, the World Wide Web, a devoted friend, a helper of the human race, be filled with, be connected to /with, be crazy about , do research into, deal with, watch over, in a way, after all, solve the problem, make use of, share….with … new grammar items: The Present Perfect Passive Voice

Reading For Fun
This is a poem written as if it were by a robot. The poor-robot is treated as if it has no feelings, but in fact it wishes to be free and play like a real girl. This is not a poem by a famous poet but it does nicely express how robots might feel when regarded as servants and not given any consideration as people.

Answer key for Exercise 1 Page 56

floppy disc ? 2 chips ? 3 monitor ? 4 modem ? 5 DVD-ROM ? 6 scanner ? 7 keyboard ? 8 printer

Answer key for Exercise 2 Page 56
? Personally

? electronic
? types ? download ? logically ? arise ? possibility ? virus

? appearance

Suggested answers to Exercise 3 on Page 56

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/ the moment 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.

With the help of a computer, you will find it easy to share and deal with the information .

? 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 exams last term and from then on his parents stopped him 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, but my mother insists that I (should)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)


coach who can train world class athletes will be universally popular.

? 7.


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.

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