Giáo án môn học Tiếng Anh khối 11 - Unit 7: World population

UNIT 7	 WORLD POPULATION
Complete each of the sentences with the correct form of the verb in the box.
increase 	expect 	decrease 	reach 	limit
raise 	control 	populate 	support 	freeze
North America was once widely populated by Native American tribes.
The world's population is expected to be over 7 billion by 2010.
The population has increased from 1.2 million to 1.8 million.
Water freezes at OoC.
Parents should control what their kids watch on television.
The number of new students decreased from 210 to 160 this year.
My family have been raising sheep for over 60 years.
How can we support our families on such low wages?
Profits are expected to reach £2 billion this year.
The role that women could play was socially limitted.
Fill in the blank with a suitable word to complete the passage.
China is the most populous country of the world. Its (1) population is approximately 1.3 billion people, which is almost 22% of the (2) world population. The population density is high in the southeast: 43 percent of the land contains most of its population. A quarter of the population (3) of China is in the middle and lower parts of the Yangtze River, and the population density (4) reaches 663 people per square kilometer. Shanghai is China's largest city, (5) whose population density reaches 2,118 people per square kilometer.
China's population growth rate has (6) decreased in the past years, although its population is still increasing. In the 1970s, the government started to implement birth (7) control programs to the people: late marriage, late childbearing, a one-child family, and a four-year period between two (8) births in the countryside where each couple may have more than one child, According to the report of Major Figures of Population of China, the annual growth rate of China's population (9) fell from 25.83% (in 1070) down to 11.21% (in 1994) and to 8.77% (in 1999) in the past 20 years. This should be (10) considered a great success.
Underline the best answers.
If you have left/ left home before I get there, I will/ would meet you at the airport.
How will/ would your father react if you leave/ left school?
If you will go/ go to England next month, you will/ must drive on the left.
Were/ Was I your doctor, I'd insist that you stop smoking.
You may/ might be sorry if you spend/ spent all your money.
Will/ Can I use your computer, if I am/ were careful? 
Will/ Would people be able to fly if they have/ had feathers instead of hair?
If anyone should/ might call, would you please take a message?
If your mother is/ were here, I'm sure she won't/ wouldn't let you eat all those chocolates. 
Were they not/ Weren’t they rich, they couldn't have gone to the USA
for their holiday.
Complete the sentences using one of the following pairs of verbs. Use the past unreal conditional.
consider - be 	go - invite 	not promote – leave know - go.
get - not have 	find - drive 	know - not take hit - not pull
drive - not happen grow up - learn
If you hadn’t been promoted, Would you have left the firm?
I would have gone to the party last night if I had been invited.
If I had known your father was in hospital, I would have gone to visit him.
They might have found a better hotel if they had driven a few more kilometers.
If I had known how difficult the job was, I wouldn’t have taken it.
I'm sure we would have got lost if we hadn’t had a map.
If you had driven more carefully, the accident wouldn’t have happened.
If you had grown up in Japan, you might have learned Japanese.
I might have considered taking the job if the salary had been higher.
The child would have been hit by a car if her mother hadn’t pulled her out of the street.
Put the verb into the correct form.
If the earth suddenly stoped (stop) spinning we all would fly (fly) off it.
If you smoke (smoke) in a non-smoking compartment the other passengers will/ may object (object).
Wouldn’t your parents be (your parents/ not/ be) proud if they could see you now?
If she hadn’t failed (not/ fail) one of her final exams she wouldn't have had to spend part of the summer in college.
I’ll lend you War and Peace if I have finished (finish) it before you go on holiday.
If we worked (work) all night we could/ would finish (finish) in time; but we have no intention of working all night.
If you had worked harder, you would have passed (pass) your final exam.
If you want to learn a musical instrument, you should practice (practise).
There have been a lot of thefts from cars in the city center. If you
leave (leave) your car there, don’t leave (not leave) any valuabIes in it.
I don't have enough money to buy that house. But if I had (have) more money, I would buy (buy) it.
I got wet because I didn't take my umbrella. However, I wouldn’t have got (not/ get) wet if I had remembered (remember) to take my umbrella with me.
I'm broke, but I would have (have) plenty of money now if I hadn’t spent (not/ spend) so much yesterday.
Tom's hobby is collecting stamps from all over the world. If he travels (travel) to a new country, he always spends (spend/ always) time looking for new stamps.
I'm doing the test very well now. I wouldn’t do (not/ do) the test well if I hadn’t revised (not/ revise) thoroughly last night. 
Would you have taken (you/ take) that job if you had known (know) that you had to work nights? 
Using the given information, make conditional sentences. Use if.
I don't ride the bus to school every morning because it's always so crowded.
I would take the bus to school every morning If it wasn't/ weren't always so crowded.
The schoolchildren sowed some seeds, but they forgot to water them so they didn't grow.
If the school-children hadn't forgotten/ had remembered to water the seeds, they would have grown.
Stop talking or you won't understand the lesson.
If you don't stop talking, you won't understand the lesson.
The wind is blowing hard, so we won't take the boat out for a ride.
If the wind wasn't/ weren't blowing hard, we would take the boat out for a ride.
Carol didn’t answer the phone because she was studying.
If Carol hadn't been studying she would have answered the phone.
I feel better now because you talked to me about my problems yesterday.
I wouldn't fee] better now if you hadn't talked to me about my problems yesterday.
Because I don't have enough free time, I can't help my mother with the housework.
If I had more free time I could help my mother with the housework.
Rita is exhausted today because she didn't get any sleep last night.
Rita wouldn't be exhausted today if she had gotten some sleep last night.
I didn't prepare for today's lesson: So it is difficult for me to understand
the teacher's explanation.
It wouldn't be difficult for me to understand the teacher's explanation if I had prepared for today's lesson.
I don't want them to be upset, so I've decided not to tell them what happened.
They would be upset if I told them what happened.
Martin failed his driving test last week because he was very nervous.
If Martin hadn't been very nervous, he wouldn't have fallen/ would have passed his driving test last week.
Go' right now or you'll be late for the train.
If you don't go right now, you’ll be late for the train.
Sally doesn't know what she has to do for homework because she was
absent from school on Friday. 
If Sally had not been absent from school on Friday, she would know what she has to do for homework.
Olga and Ivan weren't paying attention, so they didn't see the sign
marking their exit from the highway.
If Olga and Ivan had been paying attention, they would have seen the sign marking their exit from the highway.
Paulo is working on two jobs right. now, so he doesn't have time to
help you with your remodeling.
If Paulo wasn't/ weren't working on two jobs right now, he would have time to help you with your remodeling.
Change the following conditional sentences into reported speech.
'If I had any money I'd buy you a drink,' she said to me.
She told me if she had/ had had some money she would buy/ would have bought me a drink.
'If I catch the plane I'll be home by five,' he said.
He said if he caught the plane he would be home by five.
'You should stay in bed if you feel unwell.' my mother said.
My mother advised inc to stay in bed if I felt unwell./My mother said that if I felt unwell should stay in bed.
'What would you do if you were having a problem with grammar, Jane?' Anne asked.
Anne asked Jane what she would do/ would have done if she were having/ had been having a problem with grammar. 
'If I'd had my mobile yesterday, I could have contacted you,' Matthew said.
Matthew said if he'd had his mobile the day before, he could have contacted me.
'If I were you, I'd stop smoking,' she said to her brother.
She advised her brother to stop smoking.
'If you happen to be in our area, drop in and see us,' they said.
They asked me to drop in and see them if I happened to be in their area.
'If the baby is a girl what will they call her? he wondered.
He wondered what they would call the baby if it was a girl. .
'If I don't practise my English I won't get any better,' she said.
She said if she didn't practise her English she wouldn't get any better.
'If you press this switch, the computer comes on,' he said to his students.
He told his students if they press/ pressed that switch, the computers comes/ came on.
'I'd have been in bad trouble if Jane hadn't helped me,' he said.
He said he would have been in bad trouble if Jane hadn't helped him.
'If you have time, wash the floor,' he said.
He told/ asked me to wash the floor if I had time./ He said that if t had time I was to wash the floor.
'If the door is .clocked what shall I do?' she asked.
She asked what she should do if the door was/ were locked.
'If we had a calculator, we could work this out a lot quicker,' they said.
They said if they had/ had had a calculator, they could work/ could have worked that out a lot quicker.
'If you don't apologize, I'll never speak to you again.' he said.
He threatened not to speak to me again if I didn't apologize.
Complete the second sentence so that it has a similar meaning to the first.
Jack was late to the meeting because his watch was slow.
If Jack's watch hadn't been slow, he wouldn't have been late to the meeting.
Heinrich regret not having gone to art school when he was younger.
Heinrich wishes he had gone to art school when he was younger.
We don't live in a big city, so we can't easily get access to the Internet.
If we lived in a big city, we could easily get access to the Internet.
'If your job is so bad, why don't you leave?' she said.
She advised me to leave my job (if it was so bad).
I used my calculator; otherwise I'd have taken longer.
Had I not used my calculator, I would have taken longer
'If my car was working I would drive you to the station,' Tom said to his mother.
Tom told his mother that if his car was working/ had been working h ... l 	c. limit 	d. injury
LANGUAGE FOCUS
Choose the one word or phrase -a, b, c, or d- that best completes the sentences.
People are not aware ______ the problem of overpopulation.
a. for 	b. of 	c. at	d. in
Scientists say that the main reason ______ population explosion is an increase in birth rates.
a. of 	b. to 	c. for 	d. in
The second solution is to provide safe, ______ birth-control methods.
a. expensive 	b. inexpensive 	c. expensively 	d. inexpensively
Some scientists say that there are enough resources to ______ 8 billion people.
a. provide 	b. distribute 	c. raise 	d. support
______ the flood has receded, people can move back into their homes.
a. Now that 	b. Due to 	c. Although 	d. So that
If the level of VAT is ______this year, small businesses will be affected.
a. raised 	b. risen 	c. arisen 	d. raising
The world's population is ______ to be over 7 billion by 2010.
a. claimed 	b. blamed 	c. expected 	d. reached
______ millions of women want to limit the size of their families, they know of no safe way to have fewer children.
a. Because 	b. When 	c. Despite 	d. Although
Most of the fresh water is ______ at the North and South Poles.
a. boiled 	b. frozen 	c. run 	d. flowed.
China is one of the most ______ populated areas in the world. 
a. wastefully 	b. perfectly 	c. densely	d. completely
Choose the one word or phrase - a, b, c, or d - that best completes the sentences.
______ more information, please telephone our main office.
a. If you will need 	b. Should you need
c. You should need 	d. If you needed
It's time governments ______ something to limit population growth.
a. do 	b. did 	c. have done 	d. will do
I'd really like to do accounting. If only I ______ so poor at maths.
a. am not 	b. weren't 	c. hadn't been 	d. wouldn't be
She wouldn't have gone to university ______.
a. if her parents had insisted c. unless her parents had insisted
b. were her parents not insisted d. only if her parents hadn't insisted
John said if he ______ any money he me a drink. 
a. has - will buy 	b. had - would have bought
c. has had - would buy 	d. had had - would have bought
If it ______ more humid in the desert of the Southwest, the hot temperature would be unbearable.
a. is 	b. would be 	c. were 	d. had been 
If it keeps on raining, the basketball game ought ______.
a. to postpone b. to be postponed c. postpone d. be postponed
Only if you get the theater early ______ a chance to get a ticket for tonight's performance.
a. you will have 	b. have 	c. you have 	d. will you have
If she ______ sick, she would have gone out with me to the party.
a. hasn't been 	b. wasn't 	c. weren't 	d. hadn't been
______ been diverted, they would have arrived early.
a. Had the plane not 	b. Hadn't the plane
c. The plane had not 	d. The plane not had
Identify the one underlined word or phrase - A, B, C or D - that must be changed for the sentence to be correct.
Mainly because of the recent health scares involving beef and 
 A B
chicken, the number of vegetarians are expected to rise dramatically 
 C (is expected) D
in the next five years. 
Rita asked me why didn't I ask for my money back if I was unhappy 
 A B (I didn’t) C D
with my new car.
Do you have any view on whether young children should give 
 A B C (be given)
homework from school?
 D
If Rudy would have studied German in college, he would not have 
 A (had studied) B
found the scientific terminology so difficult to understand.
 C D
The United States has a younger population as most other major
 A B (than) C
industrial countries. 
 D
READING
Choose the word or phrase - a, b, c or d - that best fits the blank space in the following passage.
Mexico City is growing quickly. In 1970, the city had about 9 million people. Now it has over 17 million. All these people are causing (31) ______ for the city. There are not (32) ______ jobs. Also, there is' not enough housing. Large families have to live together in small homes. Many homes do not have water. They also do not have bathrooms or electricity. The Mexican government is (33) ______ about all these problems. It is working hard to make (34) ______ better in the city.
Why is Mexico City growing so (35) ______? Where are all these people coming from? They are coming to the city from the country. Life is hard on the farms in Mexico. Most people on farms have to live a very simple life. They have no (36) ____ money for modern things. People think life in the city must be (37) ______. So they leave their farms and move to Mexico City. 
All around the world, large cities have the same problems. One of them is air (38) ______. Mexico City has pad air. It is dirty and (39) ______. Cars are one reason for the dirty air. Many Mexicans now own their own cars and drive in the city. The factories in the area also cause air pollution. These factories put a lot of (40) ______ into the air. It is not easy to clean up the air in a large city. The government has to make new laws, and everyone has to help.
a. problems 	b. matters 	c. things 	d. news
a. much 	b. lack 	c. enough 	d. many
a. worried 	b. interested 	c. discussed 	d. known
a. duration 	b. circle 	c. live 	d. life
a. normal	b. fast 	c. slow 	d. average
a. bonus 	b. extra 	c. added 	d. given
a. bad 	b. good 	c. better 	d. best
a. pollution 	b. matter 	c. complaint 	d. comment
a. noisy 	b. tidy 	c. clear 	d. unhealthy
a. dirt 	b. smoke 	c. noise 	d. pollution
Read the passage carefully, then choose the correct answers. 
The dramatic growth of the world's population in the twentieth century was on a scale without parallel in human history. Most of this growth had occurred since 1950 and was known as the population 'explosion'. Between 1950 and 1980 the world population increased from 2.5 to over 4 billion, and by the end of the twenty century the figure had risen to about 6.6 billion. Growth of this size cannot continue indefinitely. Recent forecasts suggest that the total population will level out at between 10 and 15 billion in the mid twenty first century. Already there are encouraging signs that the rate of increase in many less developed countries is beginning to slow down. 
- scale: quy mo	 - without parallel: khong co gi sanh duoc
According to the passage, at no period inhuman history has there
been ______.
a. a population explosion of the magnitude as the one in the twenty century
b. a universal fear about the future of man
c. as comprehensive a study of population problems as the one envisaged now
d. so much consensus among nations concerning the population of the world
In 2000, the world's population was about ______.
a. four billion 	b. six billion 	c. ten billion	d. fifteen billion
It is pointed out in the passage that the increase in the world population ______.
a. is expected to continue even faster until 2050
b. will not continue into the next century
c. has been going on noticeably since 1950
d. has been much faster in the industrialized countries
The phrasal verb 'level out' in line 8 means ______.
a. to make something equal b. to make amounts be of higher level
c. to stop moving up or down 	d. to stay at a steady level
It has been forecast that, by the middle of the twenty-first century _____.
a. various measures will have been taken to encourage population growth
b. the world population will be stabilized at around 10 to 15 billion
c. the population growth rate in less developed countries will be much higher
d. the rate of population increase will have doubled the 1950 rate
WRITING
Choose the answer - a, b, c, or d - that is nearest in meaning to the sentence printed before.
If I'd known about Josie's illness, I wouldn't have missed seeing her.
a. I saw Josie, and I knew she was ill.
b. I didn't know Josie was ill, so T saw her.
c. I didn't know Josie was ill, and I didn't see her.
d. I didn't see Josie although I knew she was 'ill.
Hardly are appeals allowed against the council's decisions.
a. The council rarely allows appeals against its decisions
b. It's too hard for the council to allow appeals against its decisions.
c. The council always allows appeals against its decisions.
d. Allowing appeals against its decisions is not good.
We are planning on spending the weekend in the country as long as the weather stays fine. 
a. We're planning on spending the weekend in the country despite the bad weather.
b. If the weather is fine, we will spend the weekend in the country.
c. If the weather is finer, we would spend the weekend in the country.
d. If the country is nice, we will spend the weekend there.
Were it not for the money, this job wouldn't be worth while.
a. This job is not rewarding at all. 
b. The only thing that makes this job worthwhile is the money.
c. Although the salary is poor, the job is worthwhile.
d. This job offers a poor salary.
She said she would go to the police unless she was given her money back.
a. She went to the police because she hadn't got her money back.
b. She hasn't yet got her money back or gone to the police.
c. She wasn't given her money back because she had gone to the police.
d. She was given her money back and then went to the police.
Choose the best sentence - a, b, c, or d – made from the given cues.
He/ rather/ spend/ holidays/ a farm/ seaside.
a. He'd rather spend his holidays on a farm than at the seaside.
b. He'd rather spend his holidays on a farm at the seaside.
c. He'd rather to spend his holidays on a farm than at the seaside
d. He'd rather spend his holidays on a farm than on the seaside.
We/ survive/ unless/ start/ work/ cleaner/ safer/ sources/ energy.
a. We won't survive unless we start working cleaner, safer sources of energy.
b. We won't survive unless we start work on cleaner, safer sources of energy.
c. We will survive unless we start to work cleaner, safer sources of energy.
d. We won't survive unless we start working on cleaner, safer sources of energy.
Heavy rain/ cause/ widespread flooding/ this/ region/ lately.
a. Heavy rain caused widespread flooding in this region lately.
b. Heavy rain has caused widespread flooding in this region lately.
c. Heavy rain had caused widespread flooding in this region lately.
d. Heavy rain was caused widespread flooding in this region lately.
man/ sentence/ 15 years/ prison/ he prove/ guilty.
a. The man will get a sentence for himself to 15 years in prison if he proves himself guilty.
b. The man was sentenced about 15 years in prison and proved himself guilty.
c. The man was sentenced to 15 years in prison because he had been proved guilty. 
d. The man should make his final sentence after 15 years in prison as he proved himself guilty.
If/ you/ not help/ II not meet/ her/ last week. .
a. If you don't help me, I couldn't meet her last week.
b. If you' didn't help me, I couldn't meet her last week.
c. If you hadn't helped me, I couldn't meet her last week.
d. If you hadn't helped me, I couldn't have met her last week.