资源简介

U4 Numbers
Ⅰ. Important words and phrases:
Words:
I．重点词汇
_________ n.计算机，计算器 _________ v.计算 _________ n.计算 _________ adj.计算（用）的 _________ v. 发展 _________ adj.发达的 _________ adj.发展中的 _________ n. 发展 【拓展】develop the habit of = form the habit of= get into the habit of 养成……的习惯
_________ adj.精确的 _________ adv.精确地 【拓展】accuracy n.准确度 _________ adj.令人惊奇的 _________ adv.（人作主语）感到 惊奇的 【短语】对……感到惊奇的 be amazed/ surprised/ astonished at 【拓展】surprise n.惊讶 What a surprise!(注意a)
_________ v. 计数 _________ adj.可数的 _________ adj.（反义词）无数的 _________ adj.电子的 _________ adj.电的，用电的 _________ n. 电 【辨析】 electric a.带电 an electric fan 电风扇 electrical a.与电相关的 knowledge about electrical 电学知识 electrical appliances 电器（复数） electronic a.电子的 an electronic book 电子书
_________ v. 发明，创造 _________ n. 发明家 _________ n. 发明，创造 【形近词】invite v.邀请 invitation n.邀请 invite sb. to do sth. invite sb. to sp. _________ n.百分之...(无复数） _________ n.百分比，百分数
【课堂小练】
Ⅰ. Write the words according to the explanations(根据英文解释写出相应单词）
a_____________ancient calculating machine in China,which is still used to do calculations
a_____________exact,with no mistakes
a_____________put amounts together to get a total
a_____________very surprising
a_____________very old.from a time long ago
c_____________say numbers one after the other in the right order
c_____________use mathematics to find answers(v.)
d_____________grow bigger and/or better
a_____________on the other side in a game,fight,etc.(prep.)
e_____________using electrons for power
i_____________order,words that tell you what you must do or how to do sth.
p_____________an amount that is a part of a hundred
p_____________give orders to a computer
e_____________to the full extent
s_____________work out(v.)
Phrases:
1. different ways of writing numbers 书写数字的不同方法
2. an especially important number 一个特别重要的数字
3. odd numbers 奇数
4. even numbers 偶数
5. in ancient times 在古代
6. powerful calculating machines 有效的计算工具
7. in your whole lifetime 在你的一生中
8. a great inventor 一位伟大的发明家
9. an important invention 一个重要的发明
10. make it easier to write big numbers and to calculate
使大数字的书写和计算更加容易
11. a modern electronic calculator 一只现代的电子计算器
12. add… and… 把……和……加起来
subtract …from … 把……减去……
multiply … by … 把……乘以……
divide … by 把……除以……
13. calculate percentages and square roots 计算百分比和平方根
14. call the brain a living computer 把人脑称为一台活电脑
15. a lady from India with an amazing brain 一位有惊人大脑的印度女士
16. be like lightning 闪电般地，飞快地
17. traffic accidents 交通事故
18. in a flash 转瞬间
19. count in tens 以十进制的方法数数
20. turn on/off your mobile phone 打开/关上你的手机
21. fall asleep in class 在课堂上睡着
22. write down your decision 写下你的决定
23. some abacuses 一些算盘
24. program the computer with instructions 通过指令为电脑设计程序
25. use the system of numbers with numbers from 1 to 9 and 0
使用1到9和0的数字系统
26. use the computer to solve the problem above 用电脑解决上面的问题
【课堂小练】
词组默写
______________________________以多种方式书写数字
______________________________以相同的方式计数
______________________________从0到9的数字体系
______________________________像闪电
______________________________平方根
______________________________一把电吉他
______________________________在古代
______________________________使之更容易书写
______________________________用你毕生的时间
______________________________快捷并精准
______________________________活电脑
______________________________以下的故事
______________________________一个待解决的问题
______________________________解决以上的这些问题
______________________________一个电子计算器
______________________________国际化的数字语言
______________________________瞬间
______________________________一个现代的发明
II. Important Sentences structures.
In ancient times, people wrote numbers in many different ways, as these pictures of the number 6 show.
【知识链接】
in the way 挡路/ on the way 在路上/ by the way 顺便说一句/ in this way以这种方式/方法
as用法：
as作副词，表示程度，意为“同样地”。在“as．．．as．．．”，“not as．．．as．．．”结构中的第一个as是副词，作“和／与．．．(不)一样”解。
Jack is as tall as his father．杰克和他的父亲一样高。
He doesn't speak English as／so fluently as you．他的英语说得不如你流利。
(2) as作介词。
a. 作“如，像”解。
They got united as one man．他们团结得像一个人一样。
b. 作“充当，作为”解。
As a writer，he was famous．作为作家，他是很有名的。
(3) as作连词，常用来连接主句和状语从句。
a. 引导时间状语从句，作“当．．．的时候”解，有“随着．．．”之意，与while意义相近，强调两个动作同时发生；或某事一发生，另一事立即发生。
He shouted aloud as her ran along．他一边往前跑，一边高声地呼喊。
I was startled as he opened the door．他一开门，我吓了一跳。
as作连词，相当于when。eg；
As a little boy (When he was a little boy)he began to learn to play piano．他小时候就开始学弹钢琴。
b. 引导原因状语从句，作“因为，由于”解，与because的用法相近。
I must stop writing now，as I have rather a lot of work to do．我必须停笔了，因为我还有许多工作要做。
c. 引导方式状语从句或比较状语从句，作“正如，(如)像”解。
As in your country，we grow wheat in the north and rice in the south．正如(像)你们国家一样，我们在北方种小麦，在南方种大米。(方式状语从句)
When at Rome，do as Romans do．入乡随俗。(方式状语从句)
d. 引导让步状语从句，作“虽然，尽管”解。这时从句常用倒装语序，即把从句中的表语、状语或动词原形放在as之前。
Strange as it may seem，it is true．尽管这事看上去很奇怪，但却是真的。
Try as he might，Tom could not get out of the difficulties．不管怎样努力，汤姆还是摆脱不了困境。
However, they nearly all counted in the same way——in tens.
【知识链接】
nearly adv.几乎 （强调数量） almost adv.几乎（强调程度） most adj. 大部分的 mostly adv.大部分地 mainly adv.主要地
in tens 以十为计，十进制 three in ten 十分之三
Please pack the books in tens. 请把这些书十本一包地包装好。
This was a very important invention because it made it easier to write big numbers and to calculate.
【知识链接】invent v.发明 invention n.发明 inventor n.发明家 (注意不要与invite混淆)
类似句：Computers made it easier to communicate with others.其中it是形式宾语，真正的宾语是to communicate with others, easier 是作宾语补足语，本句为符合宾语结构。
One of the first calculating machines was an abacus.
【知识链接】“one of the+名词复数”“......之一”
Abacuses are so fast and accurate that people still use them today.
【知识链接】“so...that..”引导的结果状语从句，意为“如此...以至于...”，常考同义句转换，肯定句用“enough... to...”，否定句用“too... to”（太而不能）
Amy is so clever that she works out this problem.= Amy is clever enough to work out this problem.
Amy isn’t tall enough to reach the top.= Amy is too short to reach the top.
In a flash, a computer can do a calculation that you could not do in your whole lifetime.
【知识链接】in a flash立刻，一瞬间 近义词： in a minute/ moment, right away, without a delay
本句为定语从句，从句“that you could not do”修饰calculation。
【课堂练习】
Ⅰ. Complete the sentences with proper words according to the given meanings.The first letters are given.(根据所给释义和首字母，用适当的单词完成下面的句子）
More than 90 percent of the artists gathered at this gala.Only a small p___________(an amount that is part of a hundred)was absent.
The scientist spends hours writing i____________(orders)for the computer.
Most modern calculators are e___________(using electrons for power).
Water freezes at zero d___________(measure of temperature).
He has been e___________(very)busy this week.
Is this a c___________(whole)name list
Ⅱ.Write out the following（写出下列各项）
Put the numbers into the blanks(根据英语表达写出对应数字）
five hundred and eighteen ___________
four fifths ___________
one fiftieth ___________
two thousand ___________
six thousand and one ___________
B.Fill in each blank with the right word from the box(选用方框内的词填空，每词限填一次）
multiply divided plus point minus odd even divide subtract hundred
8________20 equals 28.
If you ________5 from 20,you get 15.
If you__________two by eight,you get 16.
A____________minus 30 equals 70.
Half of nine is four___________five.
Thirty-six___________by six equals six.
12,20 and 24 are__________numbers.
If you_________12 by 2,you get 6.
3,5 and 15 are_________numbers.
18_________9 equals 9.
课堂练习
Part 1
Ⅰ.选择最怡当的答案
( )1. Which of the following words matches the sound /mail/
A. mile B. meal C. mail D. mall
( )2. Which of the following underlined parts is different in pronunciation from others
A. We help people through the red cross.
B. Her job was to help wounded soldiers.
C. He was careful not to touch the blood.
D. There are four groups in my class.
( )3.Long long ago, a writer Shakespeare wrote a lot of dramas.
called B. is called C. is calling D. to call
( )4.My father told him that he should be responsible what he had done.
A. to B. for C. at D. in
( )5.Trees were planted on side of the street. We planted them this spring.
neither B. either C. both D. every
( )6.I was keen on computer games when I was a little boy.
play B. to play C. playing D. played '
( )7.Let us go shopping,
will you B. won’t C. shall we D. shan’t we
( )8.Mother asked her not to read the sun.
A. under B. in C. over D. beside
( )9.—Which is the smallest number of the following
A. Zero point four B. A quarter
C. Two-thirds D. One-fifth
( )10.The computer cost much money that Jack couldn’t buy it.
such B. so C. too D. very
( )ll. In mountain areas, horses are than cars.
A. useful B. more useful
C. less useful D. the most useful
( )12.— Can you read “368” in English
—Yes. It’s .
A. three, six and eight
B. three hundreds and sixth-eight
C. three hundreds and six-eight
D. three hundred and sixty-eight
( )13.You finish the exercise in class. You may do it after class.
A. don’t need B. need to
C. don’t need to D. need
( )14.I go to bed my mother came back.
A. won’t; until B. didn’t; until
C. will; until D. must; when
( )15.You’d better the paper into the ground.
A .not throwing B. not to throw
not throw D. don’t know
Ⅱ．根据短文内容，选择最恰当的答案
Long, long ago, as the birds flew over the world, they saw that men had a beautiful thing. It was a bright, burning thing. Men cooked their food and kept themselves warm with it. The birds thought life would be better if they could have this thing, too. So they decided to send a messenger to humans to ask for a little piece of it. They thought Chicken was a good one to send because he was a good talker. So Chicken went.
He flew far over the forest until he came to the towns of men. He went into a town and saw the burning thing. He learned that it was called “Fire.” He did not ask for a piece of it to take back to the birds because there was so much food lying around men; s houses that he started eating and forgot what he had come for.
Men liked Chicken because he crowed(啼叫）very early in the morning and woke them up. They let him run in and out of their houses. They threw him food. So Chicken stayed with humans. He never went back to the birds. He even forgot how to fly.
( ) 1.When the birds flew over the world, they saw .
A. a beautiful lake B. a burning thing
C. a messenger D. Chicken
( )2. The birds thought life would be ________if they could have this thing, too.
A. better B. warmer C. longer D. brighter
( )3.The birds decided to send a messenger to ask men .
A.to come to the birds
B. what the burning thing was
C. for food
D. for a little piece of the burning thing
( )4.Chicken ，so men liked him.
A. was clever
B. wouldn’t go back to the birds
C. was very busy
D. woke men up very early in the morning
( )5.Why did chicken stay with humans :
A. Humans liked him.
B. Humans threw him food
C. The bird asked him to do it.
D. Chicken didn’t like bird.
( ) 6.From this story we know that the burning thing is .
A. the sun B. the forest C. fire D. the houses
Ⅲ.选择最恰当的单词完成短文
Are you nervous Maybe you should sit in a blue room. Are you always cold Maybe you should sit in a room painted in a “warm color” such as soft orange. Are you often sad Maybe you should sit in a yellow room. Some researchers believe that color has the 1 to influence(影响）our feelings. They believe that colors affect everyone in the same way.
One study was in a workplace. The researchers 2 heavy boxes white and light boxes black. They wanted to see how color affected the workers’ feelings. Which boxes do you think were more difficult to lift The heavy white ones No. The white boxes were heavier but they looked light. The researchers think that this is because light colors seem 3 .
Another study was 4 Researchers at the University of Alberta in Edmonton, Canada, studied children with behavior problems in their classroom. When the walls were brown and yellow, the children’s heart rate 5 and they were over-active. 6 ,when the walls were light and dark blue, the children’s heart rate was slower and the children were much calmer.
If this is true, we might think carefully about the colors around them—not just in our homes，but also in offices, in schools, in hospitals, in gyms, in museums, in restaurants
and even in prisons.
( )1. A. power B. charge C. energy D. force
( )2. A. drew B. gave C. painted D. put
( )3. A. light B. heavy C. beautiful D. ugly
( )4.A.in a restaurant B.in a museum
C.in a prison D.at a school
( )5.A. went on B. went over
C. went up D. went out
( )6. A. So B. However C. Because D. Though
Ⅳ. 在短文的空格内填入适当的词，使其内容通顺。每空格限填一词，首字母已给
The Americans think a lot about time. From childhood they 1 1 to value time. As children, they are t 2 to be on time to go to school, to do work and to do everything. When Americans are having a good time, they say that time flies. When a person is d 3 ，they say he is living on borrowed time.
Time is money. Time is everything in America. A worker has to work hard for eight hours a day or forty hours a w 4 . This is the working time. In his spare time, he a 5 works hard for pleasure. Even Saturdays and Sundays are filled with activities. In the street you can hardly see a man walking s 6 They walk very fast. In fact they are running.
The Americans love time b 7 time brings them money, comfort and progress. But sometimes they also dislike time, for they feel they have become servants of the clock.
Part 2
Ⅰ.根据短文内容，选择最恰当的答案
More and more advertisements(广告）appear on the web. You have to be careful not to be fooled by the advertisements on the Internet. Something is said to be a bargain，but it isn’t always cheap. And some so-called new things just have a new outside.
However, shopping online is a kind of fashionable thing today. I love to buy things of everyday use, so I often get lots of information about them on websites online. For example, if I want an MP5, I can choose my favorite one, and look for what the users like or don’t like it, then decide whether to buy or not. And at the same time, you don’t have to go to a shop or walk around a crowded shopping area, so you don’t have to waste much time. The Internet is really useful for shopping, but be careful not to spend too much.
( )l. If you want to shop online, you should ______.
A. spend too much
B. always believe the advertisements
C.be careful not to be fooled
D. never believe the advertisements
( )2. What does the writer think of the advertisements
A. They’re always true.
B. They are not useful
C. They’re sometimes false.
D. They’re always fashionable.
( )3.What does the underlined word “bargain” in the passage probably mean
A.谈判 B.协议 C.贵重物品 D.廉价物品
( )4.What does the writer often buy online
A. So-called new things.
B. Things like MP5
C. So-called cheap things.
D. Things like a house
( )5.If you shop online, you .
A. can save time
B. have to waste time
C. have to get expensive things
D. can only buy things with a new outside
( )6.Shopping online is a kind of fashionable thing today. Here the word “fashionable” means A. interesting
B. important
C. popular
D. meaningful
Ⅱ. 选择最恰当的单词完成短文
More and more people like going abroad. What is the purpose of going abroad for people 1 not on business What do tourists hope to experience in a foreign country that they 2 at home Why do people travel to foreign countries 3 The answer could be .that people are very interested in the 4 It is a nation, s history that is its main attraction. Most of today’s tourists travel overseas to 5 what foreign countries and culture used to be like, 6 what they are like today. The word “cultural tourism” is now part of the language of tourism, and it is the museums and works of art in many countries that are their main attraction
( ) 1. A. Who is B. that is C. who are D. which are
( ) 2. A. can see B. can’t see C. can’t experience D. can experience
( ) 3. A. at last B.at all C. after all D. finally
( ) 4. A. countries B. past C. buildings D. tourism
( ) 5. A. find out B. prove C. tell D. ask
( ) 6. A. as B.so C. for D. not
Ⅲ. 在短文的空格内填入适当的词，使其内容通顺。每空格限填一词，首字母已给
Every day standing at my information desk, I have to answer lots of questions of the travelers coming from all o 1 the world. People may a 2 the strangest things sometimes. I’m often surprised at the different questions that people ask.
My job is o 3 to give information about bus and underground railway routes(路线） in the city. Of course, travelers always have questions about the b 4 ways to get to some interesting places. But quite often people are interested in knowing the names of the best hotels or restaurants. O 5 like to know about museums，hospitals or schools. Once a man wanted me to take care of his dog and a 6 time a woman asked me to watch her seven children!
I love my job t 7 I am always busy.
1 2 3 4 5 6 7
Ⅳ．根据短文内容回答下列问题
The San Diego Zoo is one of the world’s largest and finest zoos. It lies in Balboa Park in the center of the city. People go to the zoo to see wild and unusual animals from other countries. But many people don’t like to see the animals locked in cages. At the San Diego Zoo most of the 5 ,500 animals are not in cages. They are in natural setting (自然环境）.
The designers of the zoo made it look like the natural home of the animals. Elephants walk around the large places with trees and water holes that look like their home in Africa or India. Monkeys move from trees in tropical jungles(热带丛林）.Lions and tigers walk around in holes and rock-covered places.
There are several ways to see the zoo. A comfortable way is to take a small train ride. Happy guides describe the animals you see on your ride. They tell you where the animals come from and what their favourite foods are, and they tell interesting stories about the zoo.
You can also see the zoo from the air. A small train takes you to go across the zoo. You can see the zoo by walking, too. You should wear comfortable shoes and stop to rest in the chairs along the ways. A few friendly birds will visit you if you sit quietly. They will fly down from one of the hundreds of palm (棕司）trees. The palm trees remind you that you are in California.
1. Where is the San Diego Zoo
2. What do people want to see in the Zoo
3. What does the zoo look like
4. Who describe the animals you see on your ride
5 . How can people see the animals
6. What do you think of the Zoo
V.作文
Write at least 60 words on the topic “How to keep fit”.(以“如何保持健康”为题，写- 篇不少于60个词的短文，标点符号不占格）
How to keep fit
_______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
Keys:
【知识梳理】
Words:
1. calculator, calculate, calculation, calculating
2. develop, developed, developing, development
3. Accurate, accurately'
4. amazing, amazed
5. count, countable,countless
6. electronic, electric, electricity
7. invent, inventor, invention
8. percent, percentage
【课堂小练】
1. Abacus 2. Accurate 3. Add 4. Amazing 5. Ancient
6. count. 7. Calculate 8. Develop 9. Against 10. Electronic
11. Instruction 12. Percentage 13, program 14. Even 15. solve
Phrases:
1. write numbers in many different ways
2. count in the same way
3. From zero to 9 system of numbers
4. Iike lightning
5. square roots
6. An electric guitar
7. n ancient times
8. Make it easier to write
9. In your whole lifetime
10. Fast and accurate
11. living computer
12. The following story
13. a problem to solve
14, solve the above problems
15.an electronic calculator
16. The international language of numbers
17. In a flash
18. a modern invention
Sentences
【课堂小练】
Ⅰ. 1.percentage 2. Instructions 3. Electronic 4. Degrees 5, especially 6. Complete
Ⅱ. A. 1. 518 2. 五分之四 3. 50分之1 4. 2000 5. 6001
B.1. Plus 2. Subtract 3. Multiply 4. Hundred 5. Point 6. Divided
7.Even 8. Divide 9. odd 10. Minus
【课堂练习】
Part1
I. l. A 2.C 3.A 4.B 5.B 6.C 7.A 8.B 9.D 10.B
11.B 12.D 13.C 14.B 15.C
II. 1.B 2.A 3.D 4.D 5.B 6.C
III. l. A 2.C 3. A 4.D 5.C 6.B
IV.1. learn 2. taught 3.dying 4. week 5.also 6, slowly 7. Because
Part2
A篇. l. C 2.C 3.D 4.B 5.A 6.C
B篇1.C 2.C 3.B 4.B 5.A 6.D
C篇.1.over 2.ask 3.only 4. best 5. Others 6,another 7. though
D篇1-It’s lies in Balboa Park in the center of the city.
2.People want to see wild and unusual animals from other countries.
3.It looks like the natural home of the animals.
4.Happy guides.
5.They can see the animals by taking small trains or walking.
6 I think it’s interesting.(Any acceptable answer is OK.)
V. 作文
How to keep fit
A healthy body is very important to every one of us. In the morning, you can get up early, go outdoors，breathe the fresh air，and do physical exercise. Running and swimming are extremely helpful to keep fit. If you are a busy person and have no time to do these things, there are still some useful ways for you to keep fit. The easiest way is to walk to your office instead of riding a bike or taking a bus. You should always try to make yourself happy and keep a balanced diet.

展开更多......

收起↑