课件15张PPT。U3-GrammarA The comparative of adjectivesWhen we compare two people or things, we can use the comparative of adjectives. We form the comparative of adjectives like this:To form the comparative of adjectives, we often add _____ to short adjectives and use ______ with long adjectives.
We often use ________ after the comparative of adjectives. Work out the ruleMy book is more interesting than yours!-ermorethanA The comparative of adjectivesEX. Complete the conversation below with the comparative of the adjectives from the box.big expensive heavy light small Salesman: Can I help you, sir?
David: Yes, I needa suitcase. Can
you tell me about these two?
Salesman: Sure. The red one costs￥2500,
and it’s made of leather.
David: I see. The red one is ____________
than the black one. What about the
weight? Which one is___________?more expensive lighter big expensive heavy light small Salesman: The black one. It’s made of plastic.
Try them, sir.
David: You’re right. The red one is _______
than the balck one, and it’s _______
than the black one.
Salesman: Do you have a lot of things to carry?
David: Yes, I do. I’ll have the black one
because it’s __________ than the
red one.
Salesman: Thank you very much, sir.heavier smaller bigger B The superlative of adjectivesWhen we compare more than two people or things, we can use the superlative of adjectives. We form the superlative of adjectives like this:To form the superlative of adjectives, we often add _____ to short adjectives and use ______ with long adjectives.
We usually use ________ in front of the superlative of adjectives. Work out the rule-estmosttheB The superlative of adjectivesB1 David is shopping for a camera. Look at the photos and write the letter of the correct model after each statement.￥3589Made in 2010
350g
109mm×78mm×46mm￥2530Made in 2012
170g
99.8mm×56.4mm×24.5mm￥1700Made in 2011
183g
103mm×57mm×27.3mma.c.b.￥3589Made in 2010
350g
109mm×78mm×46mm￥2530Made in 2012
170g
99.8mm×56.4mm×24.5mm￥1700Made in 2011
183g
103mm×57mm×27.3mma.c.b.David: I’d like to see some of your cameras.
Salesman: Certainly.
This is the most expensive model. ______
This is the cheapest model. ______
This is the newest and lightest model. ______B The superlative of adjectivesB2 David told his friend Tony about his shopping trip. Complete David’s sentences with the superlatie of the adjectives from the box.expensive light old small Tony: Did they show you any cameras?
David: Yes.
The _______ model is____________________.
The ____________ model costs____________.
The _______ model was made in ___________.
The _______ model weighs_______________.smallest 99.8mm×56.4mm×24.5mmmost expensive ￥3589oldest 2010lightest 170g Summary 规则变化（一）单音节词和少数双音节词尾加er/est变为比较级/最高级Summary 规则变化（二）多音节词和一些双音节在词前加more/most变为比较级/最高级Summary 不规则变化拓展 形容词比较级的几种用法1. A is + adj.+er +than B .(两者）
Jim is taller than Mike.
2. 比较级前面可以有much,a little, a lot, even等修饰语
Jim is much taller than Mike.
3.数量+比较级+than
Jim is10cm taller than Mike.
4.比较级+比较级，表示 “越来越……”
hotter and hotter
more and more beautiful
5. the+比较级，the+比较级 表示 “越…就越…”
The harder you work, the better you will be.
1. A is the adj.+est of / in …..（三者或三者以上）
Jim is the tallest boy in Class 3.
= Jim is taller than the other boys in Class 3.
= Jim is taller than any other boy in Class 3.
2. the + 序数词 + 形容词最高级 + 名词 + in/of
表示“第几最…”
Mike is the second tallest boy in Class 3.
3. one of + the+形容词最高级+名词复数+in/of
表示“最…之一”
Jim is one of the tallest boys in Class 3.
拓展 形容词最高级的几种用法Post-activity:
Do a surveyGive a report Almost every student has a ________ at home. It is ____ and _____. Laptops are ______ and _______. So it is becoming ____ and _____ popular. With the development of technology, a new kind of computer is invented, that is the _______. It is ______________________________
__________________________________.
……Compare the three kinds of computers and then complete the report. (Try using the comparative and superlative of adjectives. )课件6张PPT。U3-ListeningA phone orderMable Wang is ordering some things on the phone. Listen to the conversation and complete the table below.n. 命令
v. 命令
n. 顺序
n. 秩序
v. 点菜（饮料）
n. 订货，订购(1) Put the pictures in the correct order.
(2) The order of six new ships will bring us great profits.
(3) The boss gave an order to let him go.
(4) Everyone should obey the public order.
(5) The potliceman ordered the thief to stand up.
(6)I’d like to order a cup of orange juice.orderMabel Wang is ordering some things on the phone.a monitorsome A4 papersome CDsTop tip When you are listening, pay special attention to numbers of the No.,the price and of the quality.They will help you understand the text.Listening skillA1961￥150C4091￥1,2005 boxes￥1,500￥1,200￥300￥3,000 Listen to the conversation and complete the table below.课件18张PPT。 U3- More practiceWarming-up1. What do you usually do with computers?
2. Do you play computer games?
3. How often do you play computer games?
4. What do you think of playing computer games?ReadingRead the script of a speech by a head teacher and answer the questions below.Who is attending the meeting?
Why did the student become ill?
What is the serious problem?
Who will talk to the students tomorrow?
What will they talk about?Parents and teachers.The student played computer games on the Internet all day Saturday without stopping to drink, eat or sleep.Some students play computer games for too long.Some experts.They will talk about the bad effects of playing computer games.Thinking and Discussing How can
young people
stop themselves
from playing computer games
for too long?Language Points1. Thank you for attending this meeting.
thank you for sth./doing sth.
感谢你的来信。Thank you for your letter.
感谢你帮助我。Thank you for helping me.
1. Thank you for attending this meeting.
attend 出席、参加(meeting, concert, class等)
take part in 参加活动（正式）
join in 参加活动（非正式）= take part in
join 加入党派、组织、团体等，
或join sb (in sth./doing sth.)与某人一起做某事
1. Last year, her son ___________ the army.
2. Would you like to ___________us in the card game?
3. Every year he ____________ the school sports meeting.
4. I want to ____________ Eason’s concert in HK.
5. The teacher hopes that every student could _________ the discussion.joinedjointakes part inattendjoin inLanguage Points2. Last weekend, one of our students went to hospital.
one of our students
one of + n.复 ……之一
go to hospital 去看病
go to the hospital 去医院上班，看望病人等
Language Points3. The student played computer games on the Internet all day Saturday without stopping to drink, eat or sleep.
play computer games 玩电脑游戏
on the Internet 在网上
all day = the whole day 整天，全天
without sth./ doing sth. 没有……3. The student played computer games on the Internet all day Saturday without stopping to drink, eat or sleep.
stop to do sth. 停下来去做某事
stop doing sth. 停止正在做的事
别讲话了，是时间停下来去学习了！
Stop ________(talk), it’s time to stop __________(study).
talking to studyLanguage Points4. This is a serious problem.
serious adj.严重的，严肃的，认真的
I am not really serious.
我并没有当真。
A high fever usually leads to a serious illness.
高烧常常导致严重的疾病。
This is a serious discussion.
这是一场严肃的讨论。
Language Points5. In the past, students used to play outside more often, but now they spend more time in front of computers.
in the past 在过去 (用于过去时)
in the future 在将来(用于将来时) 1. used to do sth. 过去常常做某事
否定: didn’t use to do sth.
疑问: did…… use to do
2. use…… to do sth. 用……做某事(主动)
…… be used to do sth. ……被用来做某事(被动)
3. be used to sth./doing sth. 习惯于某事/做某事Tom曾经住在这儿。
Tom used to live here.
这面墙被Tom用来画画。
This wall is used to draw pictures (by Tom).
Tom 习惯于早起。
Tom is used to getting up early.1.主语(人)+spend+time/money+on sth./(in) doing sth.
2.主语(人)+pay(+money)+for+sth.
3.主语(It)+take+sb.+time/money+to do sth.
4.主语(物)+cost(+sb.)+money花费我花了50块钱买这本书。
I _______ 50yuan ___________ this book.
I _______ 50yuan ___________ this book.
It _______ me 50yuan ________ this book.
This book ______ me 50yuan. spent on/ (in) buying paid fortook to buy cost spend-spent-spent
pay-paid-paidtake - took - taken
cost - cost - costLanguage Points6. Tomorrow we’ll have some experts here to talk to the students about the bad effects of playing computer games.
talk to sb
talk about sth
the bad effects of sth./ doing sth.
……的不良影响 affect, effect, influence, impact1.affect 动词
对……有影响
2.effect 常做名词
指某件事产生的直接后果
3.influence 动词&名词
指对行为、性格、观点等产生间接的
或潜移默化的影响
4.impact 动词&名词
有冲击性的、震撼的影响(语气强烈)
5. affect sth. = have an effect on sth.
= have an influence on sth.
= have an impact on sth.Language Points7. They’ll also give some advice on how to use computers for studying.
advice 【u】n. 不可数名词
一条建议a piece of advice 一些建议some advice
give advice on sth./doing sth./clause给出关于……的建议
take one’s advice 采纳某人的建议
follow/obey one’s advice 听从某人的建议
use …… to do sth. = use …… for doing sth.
用某物做某事希望……Language Points8. I hope we can all work together to stop students from spending too much time playing computer games.
hope to do
hope (that) + clause
hope sb to do
√√×stop sb (from) doing sth. 阻止某人做……
= prevent sb. (from) doing sth.
= keep sb. from doing sth.
烦恼使她无法入睡。
The worries stop her (from) sleeping.
The worries prevent her (from) sleeping.
The worries keep her from sleeping.
课件28张PPT。Unit 3 Computers Reading (1)Getting readyQ1: What’s “ATM”?
A: Automatic Teller Machine ---- a modern machine which is used to help people desposit and draw money.
Q2: What’s the relationship between Lo and the ATM?
a. teacher and student
b. doctor and patient
c. shop assistant and customer
d. relatives
Q3: What are they in common?
a. They are both driven by people
b. They are both driven by computers Watch and Thinkd. relativesb. They are both driven by computers???What can we do
with computers??????play gamescalculatetypedraw pictureswatch movieplay musicBrainstorming Let’s know more about a computer!monitorspeakers main unitmousekeyboardmonitorspeakersmain unitmousekeyboard1. The _________ shows words and pictures.
2. We use the _________ for typing.
3. The “brain” of a computer is in the ________ .
4. We move the _________
to control the computer.
5. We hear sound from the
____________.Group-discussionDiscussion 1: Do computers change our life?
Discussion 2: Are computers cleverer than people?
Discussion 3: Do you benefit more or get bad influence more from computers?
Pre-readingLook at the pictures, the title and the sub-headings of the article on page 35. Then tick (√) the facts that the article probably talks about.1. Computers are getting smaller and better.
2. Computers can do important jobs like flying planes.
3. Computers may work as doctors.
4. Computers are expensive.□□□□Sub-headingsSometimes a long passage has several small parts. Each part has a title. We call the title a sub-heading. It usually tells us the topic of the paragraph(s) below it.
For example, in the article on page 35, “Smaller and better” “What can we do with computers?” and “Is a computer clever than me?”STRATEGYVocabulary-Task 1The words in italics explain the meaning of some words on page 35. Find these words to complete the sentences. Change their forms if necessary.—Exercise C11. If something is very small, it is _____. (line 5)
2. Some young people always need help from their parents. They should learn to _________________ themselves.(line 8)
3. We had fun and learnt something new as well. We had a good time. ___________, we learnt a lot. (line 14)
4. When we make a machine work, we ____________ it. (line 16) tiny depend on In additionoperateVocabulary-Task 2Complete the conversation below with the words from the box.—Exercise C2 depend on, expensive, in addition, speed Mark: I bought a new computer.
Helen: Why?
Mark: I bought my first computer five years ago. I used it almost evvery day, and it became really slow.
Helen: I see. So how’s your new computer?Vocabulary-Task 2Complete the conversation below with the words rom the box.—Exercise C2 depend on, expensive, in addition, speed Mark: It was really _________, but it works at a much faster _________ than my old one. _____________, it has a larger monitor.
Helen：I also __________ my computer a lot these days. I use it to write reports, and to get on the Internet too. My computer works well, so I’m not going to buy a new one.expensivespeedIn additiondepend onReading Time!Part 1Part 2Part 3Reading-Task 1Read the article on page 35 and complete the answers with the examples from the article.—Exercise D1S1:There may be tiny computers in your home.
S2:Where, for example?
S1:In side your _______ or __________________.TV washing machine2 S1:We can do many things with computers in our daily life.
S2:For example?
S1:We can ________,________ and _________________ with them.calculate type draw thingsReading-Task 1Read the article on page 35 and complete the answers with the examples from the article.—Exercise D13 S1:Computers can do some important jobs.
S2:For example?
S1:They can ______________ and_______________________. operate railways fly planes and spaceshipsReading-Task 1Read the article on page 35 and complete the answers with the examples from the article.—Exercise D1S1:One day, computers may be able to do a better job than human beings.
S2:For example?
S1:They _________________________
____________________. may be better than doctors atdoing their jobsReading-Task 1Read the article on page 35 and complete the answers with the examples from the article.—Exercise D1Reading-Task 2Read the article again and answer the questions below in complete sentences.-- Exercise D21. What were the first computers like?
______________________________________.
2. Why are we unaware of some computers?
______________________________________.
3. Are computers cleverer than you and me? Why or why not?
______________________________________.The first computers were bigger than cars.Because some computers are tiny.No, computers are not cleverer than us. Our brain can produce new ideas but computers cannot.ListeningListen to the article and use the proper words to fill in the blanks. Computers are very popular all over the world now. Some computers are tiny, and you may be __________ of them. But you _________ on computers more than you realize. Computers calculate at a faster ________ than people, and almost never give wrong answers. They can also ______ and draw things. In __________, they can _________ railways and fly planes and spaceships. However, computers aren’t _________ than us now. But in the future, they may be able to do a ________ job than human beings. unware depend speed type addition operate cleverer better Post-DiscussionDiscuss and answer the questions below with your classmates.-- Exercise D3Group 1:
Do you depend on computers a lot in your daily life? Give examples.Group 2；
Do you agree that computers will be able to do all our jobs in the future? Give reasons.Post-DiscussionPost-DiscussionGroup 3:
What will happen to us if computers can do all our jobs? Will we have nothing to do? Group 4；
Computers may change our lives, but will they make them better or worse?Post-DiscussionPost-activity(1):
Do a surveyDo you have a computer at home?
How often do you use the computer?
What do you usually do on the computer?
How much time do you spend playing computer games every week?
How do you use the computer to help you study?
……In groups, do a survey about using computers at home. Use the following questions to help you. You must add at least one more question of your own.Post-activity(2):
Make a reportGo around the class and interview other students. Make notes of their answers. Then each group should report their findings to the class. Use the following plan to help you.
We found that … of the class have computers at home.
… use computers almost every day, and … don’t use computers very often.
… often … on the computer at home.
… 课件21张PPT。Unit 3 Computers Reading (2)WORDS monitor
speaker
main unit
keyboard
mouse
brain
speed
railway 显示器
扬声器
主机
键盘
鼠标
脑
速度
铁路n. type
control
depend
calculate
operate 打字
操纵、控制
依靠、依赖
计算
操作、控制 expensive
tiny
昂贵的，价格高的
极小的，微小的v.adj.WORDSPhrases work as
(be) unaware of
depend on
in addition 从事… …工作
没意识到，未察觉
依靠
除……以外（还）Language PointsIn the 1940s, the first computers were bigger than cars.
in the 1940s 在20世纪40年代
在19世纪80年代
A. in the 1980 B. in the 1980s
C. in 1880s D. in the 1880sIn the 1940s, the first computers were bigger than cars.
the first computers 第一批
the first + n.单 第一个……
the first + n.复 第一批……
1. In the 1940s, the first computers were bigger than cars.
bigger 比较级
big-bigger-biggest
small-smaller-smallest
wide-wider-widest
happy-happier-happiest
beautiful-more beautiful-most beautiful
good/well-better-best
bad/badly-worse-worst
many/much-more-most比……2. You may be unaware of them.
aware adj.意识到的,知道的,觉察到的
be aware of 对…有意识
他对自己的错误有所意识。
He is aware of his own mistakes.
吸烟者都知道吸烟对自身健康的危害。
Smokers are aware of the dangers to their health.Language Points2. You may be unaware of them.
aware-unaware
unaware adj.不知道的，未察觉到的
be unaware of 对……未察觉
他对整件事情一无所知。
He was completely unaware of the whole thing.
我并不清楚我们所面临的困难。
I am unaware of the difficulties we face.3. You depend on computers more than you realize.
depend v. ---- dependent adj.
depend on = be dependent on
我们的成功依赖于你们的支持。
Our success _______ ____ your support.
= Our success ____ ________ ____ your support.
independent adj.独立的– independently adv.Language Pointsdepends on is dependent on3. You depend on computers more than you realize.
more than 超过，多于
less than 不足，少于
realize v. 了解，意识到
我们没有意识到这个问题的重要性。
We didn’t realize the importance of the problem.
4. They can calculate at a faster speed than we can and almost never give wrong answers.
calculate v. 计算
calculation n. 计算
calculator n.计算器
请用你的计算器计算一下他的计算结果。
Please use your calculator to calculate the result of his calculation.Language Points4. They can calculate at a faster speed than we can and almost never give wrong answers.
at a faster speed 以一个较快的速度
火车以缓慢的速度前进着。
The train is moving ____ ____ _____ _____.
almost adv.几乎
almost never 几乎从未 at a slowspeed5. In addition, computers can do important jobs like operating railways and flying planes and spaceships.
（1）in addition, besides, except, but和except for的区别
（2）like, for example和such as的区别
Language Points(1). besides除……之外（还包括）=in addition (to)
Besides English,they also study math, Chinese and art.
他们学习数学、中文、美术和英语。
=In addition to English, they also study math, Chinese and art.
=They study math, Chinese and art. In addition, they also study English.
(2). except 除……之外（不包括）， 把某个或某些排除，指从同类人或物中除去一部分=but
He answered all the questions except the last one.
除了最后一个问题之外，他回答了所有问题。（最后一个问题没回答）
=He answered all the questions but the last one.
(3). except for 除……之外（不包括），通常先从整体上肯定然后排出某一点，所除去的和提到的并非同一类事物
Your composition is good except for a few spelling mistakes.
除了几处拼写错误以外，你的作文写得很好。（作文与拼写错误不是同类。）选词填空 in addition(to), besides, except, but, except for1. 除这本以外, 我还有五本别的书。
I have five other books ______________this.
2. 除了他，所有的学生都准时到达了车站。
All the students arrived at the station on time ____________him.
3. 除了价格，这条裙子是很不错的。
It’s a good dress __________ the price.
besides/in addition to except/ but except forfor example, such as和like的区别(1). for example与后面常用逗号隔开，可置于句首、句中、句末；所举的例子不仅可以是词组，也可以是句子。
For example，noise is a kind of pollution.
There are many difficulties in our study, for example, we are lack of money.
(2). such as 后不用逗号隔开，由于as是一个介词，因此它所举的例子只能是名词词组或动名词，不能是句子。
China has many big cities, such as Beijing,Guangzhou,Shanghai (and so on).
I have many hobbies such as swimming,singing, dancing.
(3). like 可与such as相替换，但由于它本意为“像……一样” ，因此更强调情境的相似性，重在例证。
I don’t like the person like you.选词填空 for example, such as和like1. Mike，__________，is a good boy.
2. I like drinks,____________ tea and soda.
3. ___________,My full name is James Allen Green. Green is my family name.
4. You can buy fruit here—oranges and bananas, __________.
5. There are several people interested,________Mr Jones and Mr Simpson. for example For example such as/like for example like6. For example, they may be better than doctors at doing their job.
be good at doing = do well in doing擅长做…
比较级： be better at doing=do better in doing
Are you better at ________ than _______?
A. swim, run B. swimming, running
C. swimming, run D. swim, runningLanguage Points 7. Will we have nothing to do?
have nothing to do 无事可做
(动词不定式to do 在句中作宾语补足语)
我们这个周末无事可做。
We have nothing to do this weekend.
让我们吃点东西吧。
Let’s have something to eat.Language Points 8. Computers may change our lives, but will they make them better?
change one’s life(lives) 改变某人的生活
make one’s life(lives) better 使某人的生活更好
新的环境将会改变我们的生活。
The new environment will ______ ____ _____.
电脑使我们的生活变得更好。
Computers ______ ____ _____ _______.
Language Pointschange our livesmake our lives better make + n. + adj. 课件12张PPT。U3-SpeakingA Talk TimeExtra stressWe already know two rules about sentences stress:
Stress nouns, verbs, adjectives, adverbs and numbers.
Do not stress words like a, the, is and have except for special reasons.
Here is a third rule:
Give extra stress to the most important word in the sentences. You, the speaker, must decide what the most important word is. A Talk TimeA1 Read the conversation below and practice it in pairs. Give extra stress to the words in colour.Amy: What do you think of computers, Frank?
Are they cleverer than human beings?
Frank: No, I don’t think so.
Amy: Why not? Computers can do a lot of
things?
Frank: Maybe, but human beings created
computers!
Amy: That’s true.A Talk TimeA2 Read the conversation below and draw a circle around the words you would give extra stress to. Then practice it in pairs.Frank: Which kind of computers are better,
desktops or laptops?
Amy: Laptops, I think.
Frank: Why?
Amy: Laptops are lighter. They’re easier to carry
around than desktops！
Frank: Yes, but desktops are often cheaper than
laptops. And I don’t really have much money.
Amy: Well, then a desktop is probably a better
choice for you.Language PointsMaybe, but human beings created computers!creat v. 创造，创建，形成
discover v.发现（本来存在但不为人知的东西）
invent v.发明（原来没有的事物）
find v.找到（具体的人或物，强调结果）
find out 发现，查明（理由，原因等抽象概念）U3-WritingAn email about monitorsTop Office found that they did not have any C4091 monitors, so Tom Green, a salesman, wrote an email to Mabel Wang. Look at the table and complete Tom’s email to Mabel.To: Mable WangFrom: Tom GreenDear Ms wang,
You ordered a C4091 monitor yesterday. I am afraid we do not have any now. However, we have another model– the C4095. The C4095 is a 19-inch monitor, so it is bigger than the C4091._________________
________________________________________________________________________________________________________________
Would you like to order a C4095? I look forward to your reply.
Best wishes,
Tom Greenbig
expensive
light
popular The C4095 weighs 4 kg, so it is lighter than the C4091. The C4095 costs 1,298 yuan, so it is a little more expensive than the C4091. We have sold 50 C4095 monitors and 38 C4091 monitors this month, so the C4095 is more popular than the C4091.C4091DiscussionWhy Mable Wang prefers C4091?C4095cheap,
clear,
new,
beautiful,
powerful,
…Language Points1. I am afraid we do not have any now. afraid adj.担心的，害怕的
be afraid of + n./V-ing
Most animals are afraid of fire.
She is afraid of answering this question.
be afraid (that) + 句子 表示“很抱歉，很遗憾”
I’m afraid that I can’t help you.Language Points2. I look forward to your reply.look forward to + n./V-ing 期望，盼望…
I am looking forward to the special birthday presents.
We look forward to seeing you again.课件6张PPT。U3-Study skill&Culture cornerResearch skills (2) :
Using a search engineThere is a lot of information on the Internet. You can find the information you need by using a search engine.
Here are some useful tips for searching online.Tip 1:Type in keywords, not complete sentences. These keywords can be words, phrases or even short sentences.See examples on P46.Tip 2:Use more specific words to get better results.See examples on P47.Tip 3:Use double quotation marks (“…”) to find web pages containing specific groups of words or phrases.See examples on P47.Culture corner:
The abacusThe abacus was perhaps the first type of computer. People started using it over 4000 years ago to do maths. It was used in ancient China, Rome, Egypt and Greece. Today some people still use the abacus.
