Unit 2 Arnwick was a city with 200,000 people.

1. How many babies are born every

minute?

2. How many babies are born every year?

3. What’s the population of China?

4. What’s the population of the world?

Key words revision1. 分数表达：三分之一： one third三分之二： two thirds四分之三： three fourths\ three quarters二分之一： one half四分之一： one quarter分数中间可以用横线

2. 小数 3.5 读作： three point five; 4.5 four point five3. 百分数： 30% 读作： thirty percent; 25% twenty-five percent

Key words revision

1. What’s the population of China?China has a population of 1.37 billion.China has a large population.China’s population is larher than that of India.2. Eighty percent of the population are farmers.Three-fifths of the population in China are living

in larger cities.3. The noisy children are talking and laughing

noisily. Don’t make any noise! Mum is sleeping! The classroom is too noisy and stop talking.

Key words revision1. I enjoy listening to the sound of the click of the rails.

2. Sound travles much faster than light.

3. Her voice is very low but her brother’s is very high.

4. She’s always speaking in a sweet and kind voice.

5. I enjoy listening to Voice of America.

6. Chaplin acted in many soundless films.

7. The number of students has increased to 4,000.

8. The population of China has increased by 0.5 percent.

9. The population is rising\growing\increasing.

10. We students have grown up.

Key words revision

• 1. You have ________ shoes.• 2. Sometimes I eat _________ noodles.• 3. Too many cars and _________

pollution!• 4. _________ praise is a burden.• 5. The work is __________ hard for us.• 6. She drank _________ water.• 7. Among ourselves, that young man's

hair is _________ long.(too much; too many; much too)

Key words revision

1. The college prepares students for a job in business.

2. The police are preparing themselves for troubles on holiday.

3. I was preparing to leave for Shanghai next time.

4. Do they know what caused the fire?

5. Drinking and driving is one of the most common

causes of traffic accidents.

6. The bad weather causes troubles for farmers.

7. The poor harvest caused prices to rise sharply.

Number revision

1. 12,009

2. 3,456,909

3. 3,000,000,300

4. 76,567,407

5. 1,345,567,543

6. 300,456,780,908

7. 34,305

8. 54,908,765

9. 87,908,765,450

The population problem is one of the most serious problems in the world today. China has the largest population in the world.If population grows too fast, it will bring lots of serious troubles. Overpopulation( 人口过剩 ) makes the traffic crowded. It makes the environment terrible. So we must try our best to control the population.

food shortage

water shortage

city problems

pollution

Bad effects

Water Shortage

These are not true snows.

Sometimes colorful things are a kind of

burden!

Tomorrow’s mountain

Where do you prefer to live, in a quiet country village or a big city? Why?

Work in pairs and answer the questions.Using the words in the box to help you.

countryside field flat hospital job office rubbish village

Because they want to look for work

and have a better life.

1. Why do people move to cities?

2. What are the problems of big cities?

Pollution, crime, loneliness, rubbish

collection ... are the problems of cities.

Listen to the passage and check the true sentences.

1. Parkville was a quite village.

2. Arnwick was a city with 200,000 people.

3. Parkville now has a population of more

than one million.

4. The local school in Parkville has 2,000

pupils.

5. Big cities need more money for public

services.

√

√

×

×

√

Read and answer the questions.

1. What was Parkville( 帕克威尔 ) when Jo’s grandparents first came to Parkville?

2. What is Arnwick( 阿恩威克 )?

3. What is Parkville now?

It was a quiet country village.

It is a city near Parkville.

It is a part of Arnwick, with over a million people.

4. Why did people move to the big city Arnwick?

5. How long does Jo take to go to school now?

People wanted to find jobs and they needed a place to live.

It takes an hour by bus.

A.New problems.

B.The lesson we got

from the story.

C. The old Parkville.

D. The new needs.

E. The changes in

Parkville.

Read the passage again and match the headings with the paragraphs.

Where did they live in Parkville?

It was a small house close to fields and hill.

1. Was Parkville far from Arnwick?

2. Why were buildings built outside the centre of Arnwick?

3. What problem does Jo’s family have to live in a flat?

No, it was near Arnwick.

Because it was expensive to live in the centre of Arnwick.

It is very crowded, and rubbish is also a problem.

1. The small local school is still open.

2. The new school is close to Jo’s home.

3. The longer journey has a lot of the traffic and pollution.

closed down.

far from

True or false.

F

F

T

Arnwick needs more schools, buses and

__________. It needs fresh air, clean water,

and better __________________. It needs more

______ to protect people. It needs ___________

to do all these things.

Fill in the blanks.

hospitals

public service

more money police

1. Is Parkville a real place?

2. What does the writer want to tell us?

No, it is just a story.

Population increase is a big problem in big city. Pollution, rubbish collection, traffic ... are the problems of cities. We should protect our Earth.

Parkville (country village) People arrived in Arnwick.

Parkville (became a part of Arnwick)

Arnwick became larger.

New problems (education, traffic, pollution…)More things needed (school, buses, hospitals,

fresh air, clean water, police, more money…)

Retell the story according to the clue.

Where do you live, in a village, a town or a city?

What problems do you think your hometown has?

Do you have any ideas of solving these problems?

room 此处为不可数名词 , 意思是“空间 , 地方”。可用 little ， much ， no ， plenty 等词修饰。可构成 make room for( 给……让出地方 ) ； take up room( 占地方 ) ； leave room for( 留出空间给…… ) 等短语。 There is no more room in the computer file. 计算机文件里没有空间了。

1. … there’s no room for …

Language points

There isn’t enough room for all the furniture.

没有足够的地方放置全部家具。

The table takes up a lot of room.

这张桌子占去很多地方。

How do you make room for great work in your life?

你怎样在生活中给更重要的事情留出空间？

We must prepare a room for our guest.

我们必须为客人预备一个房间。

room 为“房间”时，是可数名词。

My books take up too much room.

我的书占据了太多的空间。 Leave room for this big box.

留出地方放这个大箱子。

[ 辨析 ] space, place, room 的用法区别

三者均可表示“空地”、“空间”，区别如下：

(1) 泛指一般意义的“空地”或“空间”，space 和 room 均可以用，但前者根据情况可用作可数或不可数名词，而后者通常只用作不可数名词。如：

The large table takes up too much space

[room].

这张大桌子太占地方了。 There isn’t enough space [room] for all

our luggage.

没有足够的地方可以放我们的行李。 Here is an empty place, put the box here.

这里有个空地方，把箱子放在这里吧。

注意： place 表示“太空”、“宇宙”，是不可数名词，而 room 表示“房间”，是可数名词。 He was staring into space.

他极目远眺。 This is one of the largest rooms here.

这是这里最大的房间之一。

(2) place 表示“空地 , 地方”，其含义通常比较具体，且往往指座位，有时与 seat 同义。如：

We’ll try to get places (=seats) at the front of the hall. 我们要设法弄到大厅前面的座位。 There are only two places (=seats) left for

tonight. 今晚只剩两个座位。 --- Is there any room [space] in the boat? 船上有空处吗 ? ---Yes, that place in the corner is empty. 在那边角落里还有个空位。

1. Could you make ______ for me?

2. Is there _______ for me in the car?

3. Is there any _____________for me in the

car?

4. I want to live in a ________which is warm

in winter.

room

room

space / room

place

Fill in the blanks using room, space and place.

Practice

There is no enough ____ in the corner to put the table.

A. place B. room

C. floor D. ground

解析：根据句意知道，这里表示没有地方放桌子。选 A 的同学要注意 place

表示地点，是可数名词。

B

2. close down

close down 关闭； 停业 All the stores and shops in this city don't close down on Sundays. 这个城市的大小商店星期天都不关门。 It is midnight and we are now closing down. 时间已到午夜，本台现在停止广播。 The theatre has had to close for lack of support. 这家剧院光顾者很少只好关闭。

3. protect

protect v. 保护 , 保卫 These gallant soldiers will protect our country. 这些勇敢的士兵会保卫我们的国家的。 An umbrella will protect you from the rain. 雨伞可以保护你不致雨淋。 This medicine will protect you against a return of the illness. 这种药会防止你的疾病复发。 protection n. 保护；防卫

protect 常用结构： protect ... against / from ... 保护…免遭…

1). 当防御的对象是“危害”或较小的事情 ,

如冷气等时 , 要用 protect from; 当防御的对象是“袭击”或较大的事情 , 如天灾时 , 要用 protect against 。2). protect against 强调防止 against 的宾语做某事 ; protect from 则强调保护 protect 的宾语不受…。

连词成句练习

can, from, protect, caps, us, the, our, sun

Our caps can protect us from the

sun.

Read and check the problems that exist in your home town.

( ) 1. Many young people want to leave the countryside because they want to find jobs in the city.

( ) 2. There are not enough schools and hospitals in big cities.

( ) 3. Too much traffic brings air pollution.

( ) 4. There is too much rubbish in the streets.

( ) 5. There are not enough police in the city.

( ) 6. It is difficult to get enough clean water.

Write about a problem your home town has. Write down your suggestions to solve the problem.

Problem Opinions and reasons

suggestions

Problem Opinions and reasons

suggestions

Many young people want to leave the countryside because they want to find jobs in the city.

This is a big problem for the countryside and city. More and more young people crowd into cities, so there are few people working in the countryside. Meanwhile, there are so many people in the cities that some may not find a job.

It may be better to build more universities and create more jobs in smaller towns in the countryside, so young people will find it more interesting to stay.

Problem Opinions and reasons

suggestions

Too much traffic brings air pollution.

This is a national as well as an international problem. Governments in every country do not do enough to control traffic pollution.

The governments should develop public transport so that people do not use their cars so much in the big cities.

Imagine that you and your family

have moved from the countryside to

the city.

Write an email to a friend about your

new life in the city.

Writing