Bài tập tiếng Anh lớp 7 Unit 12 An overcrowded world có đáp án

Bài tập Unit 12 lớp 7 An overcrowded world có đáp án

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I. Find the odd one out A, B, C, or D.

1. A. affect B. replace C. effect D. fly

2. A. density B. overcrowded C. crime D. megacity

3. A. explosion B. hunger C. slum D. float

4. A. space B. safely C. poverty D. slumdog

5. A. criminal B. drive C. doctor D. student

II. Complete the following tag questions.

1. There's a new cartoon, .....................................?

2. They don't want to sell their house, ..............................?

3. This machine never works very well,..............................?

4. Your parents should stay in the hotel,..............................?

5. We can't go camping today,.............................?

6. I am late,............................?

7. Let's go to Lan's house,.............................?

8. I think that is an overcrowded bus,...............................?

9. You grandparents don't prefer living in the city,...............................?

10. The tourists will never be allowed to visit the slums again,...........................?

11. I'm unable to solve that problem alone,...........................?

12. Dharavi used to be a fishing village with only three thousand people,................................?

13. Her brother has lived in Jakarta for more than ten years,...........................?

14. These houses cannot provide enough accommodation,.............................?

15. His sister works for a big foreign company in the city,..........................?

16. There were nearly one million people living in this city in 2010,...........................?

17. You and I shouldn't go to those streets when it turns dark,.........................?

III. Give the correct form of the words given to complete the sentences:

1. The air in the city is very......................................(pollute)

2. We'll make this beach clean and..............................again. (beauty)

3. If the pollution.............................., what will happen? (continue)

4. The world's population is growing....................................(quick)

5. If it doesn't rain soon, there'll be a great........................of water. (short)

6. In most big cities, there are many wealthy people, but..........................is still a problem. (poor)

7. Life must be...............................in the slums. (difficulty)

8. .............................325 to Ho Chi Minh City is now boarding at the gate 3. (fly)

9. The little looks..........................enough. (health)

10. Farmers need.............................land than town people. (much)

IV. Use the word given and other words, complete the second sentence so that it has similar meaning to the first. Do not change the word given.

1. New York has more billionaires than Tokyo. (FEWER)

....................................................................................................

2. A group of foreigners visited the slums last week, didn't they? (VISIT)

....................................................................................................

3. The countryside doesn't suffer as much pollution as the city. (LESS)

....................................................................................................

4. Does overpopulation cause a lot of social problems in this area? (CAUSES)

....................................................................................................

5. Jakarta doesn't have as many skyscrapers as Shanghai. (MORE)

....................................................................................................

V. Find mistake in the four underlined parts of each sentence and correct it.

1. We prefer living in the countryside because it has fewer pollution than the city.

2. Their children have never been given new clothes before, haven't they?

3. There are more opportunities to find jobs in Hong Kong as in Bangkok.

4. Your uncle works in Ha Noi for one year and then moved to Da Nang, didn't he?

5. There used to be less unemployed people in this city five years ago.

VI. Read the following passage and answer the questions below.

The two children have been in London. They were surprised at the crowds everywhere. They decided to travel on the tube railway. They found that they had to be quick and get on the train or it would go off without them.

One day they went to Hype Park and walked along on the grass to Kensington Gardens in bright autumn sunshine. This was different from the crowded streets, and Mary said that it was like being back home. The leaves of the great trees were turning red, brown and yellow, birds were flying about, there were lots of flowers and ducks swimming about on the Round Pond. Only the noise from the street in the distance reminded them of the town.

1. Where have the children been?

..........................................................................

2. What made them surprised?

..........................................................................

3. What did they decide to do?

..........................................................................

4. Where did they go one day?

..........................................................................

5. In which season did they go there?

..........................................................................

6. Where do you think the two children cam to London from?

..........................................................................

VII. Choose the best option A, B, C or D to complete the sentence.

1. Overpopulation problems..................both the rich and the poor.

A. cause B. reduce C. happen D. affect

2. The major cause of death for children living in the slums is................

A. immigration B. malnutrition C. density D. illiteracy

3. It's very ...............in the city. Some rich people live in large villas, while many poor people live in small slums.

A. spacious B. healthy C. diverse D. equal

4. Some poor people may....................crime when they need money.

A. commit B. accept C. involve D. arrive

5. The city has to find.........................to homeless people immediately.

A. calories B. solutions C. earnings D. systems

6. The immigrants will hardly find accommodation in the city,....................?

A. will they B. won't they C. will it D. won't it

7. Disease spreads more quickly in overcrowded areas,...................?

A. isn't it B. doesn't it C. is it D. does it

8. Living in the country is healthier than that in the city because in the countryside, there is........traffic.

A. higher B. fewer C. more D. less

9. people move to the city with the hope that they can get..............food and better healthcare.

A. more B. bigger C. less D. fewer

10. ..................accidents were recorded this year than that year; 23 cases compared to 42 cases.

A. Less B. More C. Fewer D. Lower

VII. Fill in the blank with a suitable word in the blanket.

Overpopulation is an undesirable condition where the number of existing human population (1) ____________ the carrying capacity of Earth. Overpopulation is (2)____________by a number of factors such as reduced mortality rate, (3) ____________ medical facilities, and depletion of precious resources.

The effects of overpopulation are quite severe. One of these is rise in unemployment. When a country (4) ____________ overpopulated, it gives rise to unemployment as there are (5) ____________jobs to support a large number of people. Rise in unemployment gives rise to (6) ____________as people will steal various items to feed their family and (7)____________them basic amenities of life.

High cost of living is another effect. As difference (8) ____________demand and supply continues to expand due to overpopulation, it raises the (9) ____________of various commodities including food, shelter and healthcare. This means that people have to pay (10)____________ to survive and feed their families.

Read the passage and complete the following sentences with ONE or TWO words. 

The increased loss of the ecosystems including wetlands, wildlife, rainforests, coral reefs, aquatic life forms, and grasslands are highly influenced by overpopulation. It is out of overpopulation that activities such as excessive agriculture, environmental pollution, and extensive land development have become more and more intensive.

For example, rainforests originally covered 14% of the entire earth’s surface. Today, rainforests only cover about 6% of the earth’s surface and scientists forecast it may even become less in the next four decades judged by the current rate of vegetation removal, logging, and deforestation. Besides, due to environmental pollution, 30% of the ocean reefs have been lost because of acidification and global warming since 1980. Also, more than half of the original wetlands have been lost.

1. The increased loss of the_________are highly influenced by overpopulation.

2. Excessive agriculture has become more and more_________.

3. _________of the entire earth’s surface was originally covered by rainforests.

4. Rainforests may cover less than 6% of the earth’s surface in the next_________.

5. Acidification and_________have made 30% of the ocean reefs disappear since 1980.

ĐÁP ÁN

I. Find the odd one out A, B, C, or D.

1 - C; 2 - B; 3 - B; 4 - B; 5 - B;

II. Complete the following tag questions.

1. There's a new cartoon, ................isn't there.....................?

2. They don't want to sell their house, ..............do they................?

3. This machine never works very well,...........does it...................?

4. Your parents should stay in the hotel,............shouln't they..................?

5. We can't go camping today,........can we.....................?

6. I am late,...........aren't I.................?

7. Let's go to Lan's house,............shall we.................?

8. I think that is an overcrowded bus,............isn't it/ that...................?

9. You grandparents don't prefer living in the city,..............do they.................?

10. The tourists will never be allowed to visit the slums again,............will they...............?

11. I'm unable to solve that problem alone,............are I...............?

12. Dharavi used to be a fishing village with only three thousand people,................didn't she................?

13. Her brother has lived in Jakarta for more than ten years,............hasn't he...............?

14. These houses cannot provide enough accommodation,.............can these...............?

15. His sister works for a big foreign company in the city,............doesn't she..............?

16. There were nearly one million people living in this city in 2010,.............weren't there..............?

17. You and I shouldn't go to those streets when it turns dark,...........should we..............?

III. Give the correct form of the words given to complete the sentences:

1. The air in the city is very.................polluted.....................(pollute)

2. We'll make this beach clean and...................beautifully...........again. (beauty)

3. If the pollution...............continues..............., what will happen? (continue)

4. The world's population is growing................quickly....................(quick)

5. If it doesn't rain soon, there'll be a great.........shortage...............of water. (short)

6. In most big cities, there are many wealthy people, but...........poverty...............is still a problem. (poor)

7. Life must be...............difficult................in the slums. (difficulty)

8. ............Flight.................325 to Ho Chi Minh City is now boarding at the gate 3. (fly)

9. The little looks...............healthy...........enough. (health)

10. Farmers need.........more....................land than town people. (much)

IV. Use the word given and other words, complete the second sentence so that it has similar meaning to the first. Do not change the word given.

1 - Tokyo has fewer billionaires than New York.

2 - Did a group of foreigners visit the slums last week?

3 - The countryside is less suffer pullution than the city.

4 - Overpopulation causes a lot of social problems in this area, doesn't it?

5 - Shanghai has more skyscrapers than Jakatar.

V. Find mistake in the four underlined parts of each sentence and correct it.

1 - fewer thành less;

2 - haven't they thành have they;

3 - as thành than;

4 - works thành worked;

5 - les thành fewer;

VII. Fill in the blank with a suitable word in the blanket.

Overpopulation is an undesirable condition where the number of existing human population (1) ______exceeds______ the carrying capacity of Earth. Overpopulation is (2)____caused________by a number of factors such as reduced mortality rate, (3) ______better______ medical facilities, and depletion of precious resources.

The effects of overpopulation are quite severe. One of these is rise in unemployment. When a country (4) ______becomes______ overpopulated, it gives rise to unemployment as there are (5) ______fewer______jobs to support a large number of people. Rise in unemployment gives rise to (6) _______crime_____as people will steal various items to feed their family and (7)_____provide_______them basic amenities of life.

High cost of living is another effect. As difference (8) _____between_______demand and supply continues to expand due to overpopulation, it raises the (9) ________prices____of various commodities including food, shelter and healthcare. This means that people have to pay (10)_____more_______ to survive and feed their families.

Read the passage and complete the following sentences with ONE or TWO words.

The increased loss of the ecosystems including wetlands, wildlife, rainforests, coral reefs, aquatic life forms, and grasslands are highly influenced by overpopulation. It is out of overpopulation that activities such as excessive agriculture, environmental pollution, and extensive land development have become more and more intensive.

For example, rainforests originally covered 14% of the entire earth’s surface. Today, rainforests only cover about 6% of the earth’s surface and scientists forecast it may even become less in the next four decades judged by the current rate of vegetation removal, logging, and deforestation. Besides, due to environmental pollution, 30% of the ocean reefs have been lost because of acidification and global warming since 1980. Also, more than half of the original wetlands have been lost.

1. The increased loss of the_____ecosystems____are highly influenced by overpopulation.

2. Excessive agriculture has become more and more____intensive_____.

3. ____14%_____of the entire earth’s surface was originally covered by rainforests.

4. Rainforests may cover less than 6% of the earth’s surface in the next___four decades______.

5. Acidification and____global warming_____have made 30% of the ocean reefs disappear since 1980.

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