Đề cương ôn thi môn Tiếng Anh 7 - Unit 12: An overcrowded world

UNIT 12:AN OVERCROWDED WORLD
A. TỪ VỰNG:
1. affect (v) /ə'fekt/: Tác động, ảnh hưởng
2. block (v) /blɑ:k/: Gây ùn tắc
3. cheat (v) /tʃi:t/: Lừa đảo
4. crime (n) /kraim/: Tội phạm
5. criminal (n) /'kriminəl/: Kẻ tội phạm
6. density (n) /'densiti/: Mật độ dân số
7. diverse (adj) /dai'və:s/: Đa dạng
8. effect (n) /i'fekt/: Kết quả
9. explosion (n) /iks'plouƷ ən/: Bùng nổ
10. flea market (n) /fli:'mɑ:kit/: Chợ trời
11. hunger (n) /'hʌɳgər/: Sự đĩi khát
12. major (adj) /'meiʤər/: Chính, chủ yếu, lớn
13. malnutrition (n) /,mỉlnju:'triʃən/: Bệnh suy dinh dưỡng
14. megacity (n) /'megəsiti/: Thành phố lớn
15. overcrowded (Adj) /,ouvə'kraudid/: Quá đơng đúc
16. poverty (n) /'pɔvəti/: Sự nghèo đĩi
17. slum (n) /slʌm/: Khu ổ chuột
18. slumdog (n) /slʌmdɔg/: Kẻ sống ở khu ổ chuột
19. space (n) /speis/: Khơng gian
20. spacious (Adj) /'speiʃəs/: Rộng rãi
B. NGỮ PHÁP:
I. TAG QUESTION (CÂU HỎI ĐUƠI) 
1. Quy tắc chung:
- Câu nĩi và phần đuơi luơn ở dạng đối nhau
Câu nĩi khẳng định, đuơi phủ định?
Câu nĩi phủ định, đuơi khẳng định?
Ví dụ:
          The children are playing in the yard, aren’t they?
          They can’t swim, can they?
 Câu giới thiệu dùng “I am”, câu hỏi đuơi là “aren’t I”
Ví dụ:      
         I am a student, aren’t I?
Câu giới thiệu dùng Let’s, câu hỏi đuơi là “Shall we”
Ví dụ:    
         Let’s go for a picnic, shall we?
 Chủ ngữ là những đại từ bất định “Everyone, someone, anyone, no one, nobody” câu hỏi đuơi là “they”
Ví dụ:     
           Somebody wanted a drink, didn’t they?
           Nobody phoned, did they?
Chủ ngữ là “nothing” thì câu hỏi đuơi dùng “it”. Và Nothing là chủ ngữ cĩ nghĩa là mệnh đề giới thiệu đang ở dạng phủ định, câu hỏi đuơi sẽ ở dạng khẳng định.
Ví dụ:  
          Nothing can happen, can it?
 Trong câu cĩ các trạng từ phủ định và bán phủ định như: never, seldom, hardly, scarely, little thì câu đĩ được xem như là câu phủ định – phần hỏi đuơi sẽ ở dạng khẳng định
Ví dụ:     
          He seldom drinks wine, does he?
Câu đầu cĩ It seems that + mệnh đề, lấy mệnh đề làm câu hỏi đuơi
Ví dụ:    
          It seems that you are right, aren’t you ?
Chủ từ là mệnh đề danh từ, dùng “it” trong câu hỏi đuơi
Ví dụ:               
          What you have said is wrong, isn’t it ?
          Why he killed himself seems a secret, doesn’t it ?
Sau câu mệnh lệnh cách (Do/Don’t do v.v ),  câu hỏi đuơi thường là  will you?:
Ví dụ:               
         Open the door, will you?
         Don’t be late, will you?
Câu đầu là I WISH, dùng MAY trong câu hỏi đuơi
Ví dụ:      
                        I wish to study English, may I ?
Câu đầu cĩ MUST, must cĩ nhiều cách dùng cho nên tùy theo cách dùng mà sẽ cĩ câu hỏi đuơi khác nhau
Must chỉ sự cần thiết: => dùng needn’t
Ví dụ:    
          They must study hard, needn’t they?
Câu cảm han, lấy danh từ trong câu đổi thành đại từ, [ ] dùng is, am, are
Ví dụ:             
         What a beautiful dress, isn’t it?
         How intelligent you are, aren’t you?
Câu đầu cĩ I + các động từ sau: think, believe, suppose, figure, assume, fancy, imagine, reckon, expect, seem, feel + mệnh đề phụ, lấy mệnh đề phụ làm câu hỏi đuơi.
Ví dụ:             
          I think he will come here, won’t he?
          I don’t believe Mary can do it, can she?
II. COMPARISONS OF QUANTIFIERS (SO SÁNH ĐỊNH LƯỢNG)
1. Cơng thức so sánh định lượng:
          Subject +
Verb +
More
 + Noun
 + Than   +
Noun
Fewer
Pronoun
less
2. Cách dùng
 More : thêm,nữa, nhiều hơn
Ví dụ:
          I have more books than she.
          (Tơi cĩ nhiều sách hơn cơ ấy.) 
 Less: ít hơn, kém hơn. ;less dùng với danh từ khơng đếm được.
Ví dụ:
          Their job allows them less freedom than ours does. 
         (Cơng việc của họ làm họ cĩ ít sự tự do hơn chúng tơi.)
Fewer:  ít hơn, kém hơn. Fewer được dùng với danh từ đếm được
Ví dụ:
          February has fewer days than March.
         (Tháng Hai cĩ ít ngày hơn tháng Ba.)
C. BÀI TẬP:
❶. PHONETICS 
I. Choose the words whose underlined part is pronounced differently from that of the others in each group.
1. A meat	B. heat	C. health	D. seat
2. A. house	B. overcrowded	C. country	D. town
3. A. slum	B. luck	C. cutting	D. sugar
4. A. smooth	B. toothache	C. footprint	D. wood
5. A him	B. hunter	C. honor	D. ham
6. A. washed	B. needed	C. danced	D. matched	
7. A. obey	B. key	C. grey	D. survey
8. A. ways	B. days	C. books	D. stays
9. A. seat	B. great	C. seaside	D. beach
10. A. heritage	B. cottage	C. luggage	D. cage
11.	 A. hour	B. household	C. rehearse	D. horrible
12.	 A. hygiene	B. energetic	C. altogether	D. surgery
13.	 A. oceanic	B. decide	C. socialize	D. delicious
14.	 A. measure	B. breakfast	C. ten	D. spread
15.	 A. stomachache	B. biology	C. worried	D. comfortable
16.	 A. perform	B. end	C. festival	D. elephant
17.	 A. cake	B. celebrate	C. racing	D. candle
18.	 A. desert	B. held	C. prefer	D. celebrate
19. A. those	B. they	C. than	D. Thanksgiving
20.	 A. designs	B. sails.	C. pedals	D. pollutes
21.	 A. cranberry	B. lantern	C. gather	D. apricot
22.	 A. abundant	B. travelling	C. character	D. biogas
23.	 A. diverse	B. drive	C. invention	D. crime
24.	 A. washed	B. needed	C. danced	D. matched
25.	 A. obey	B. key	C. grey	D. survey
26.	 A. density	B. countryside	C. reason	D. list
27.	 A. sugar	B. slum	C. cutting	D. luck
28.	 A. fact	B. place	C. malnutrition	D. traffic
29.	 A. spacious	B. delicious	C. social	D. decision
30.	 A. decrease	B. healthcare	C. sea	D. disease
II. Choose the word whose main stressed syllable is placed differently from that of the other in each group.
1. A environment	B. eco-friendly	C. renewable	D. abundantly
2. A. homeless	B. describe	C. skyscraper	D. violence
3. A. uncomfortable	B. population	C. overcrowded	D. celebration
4. A. behavior	B. industrial	C. agriculture	D. economy
5. A. wealthy	B. peaceful	C. diverse	D. labor
6. A. himself	B. assist	C. support	D. lemon	
7. A. become	B. bookshop	C. science 	D. metro
8. A. country	B. myself	C. belong	D. Chinese
9. A. rotation	B. mineral	C. contaminate	D. American
10. A. speechless	B. worthy	C. pollute	D. better
11. A. dangerous	B. plentiful	C. another	D. limited
12. A. attention	B. holiday	C. pollution	D. effective
13. A. different	B. expensive	C. abundant	D. convenient
14. A. petroleum	B. advantage	C. enormous	D. tendency
15.	 A. nationality	B. national	C. nationalize	D. nationalize
❷. MULTIPLE CHOICE	
Choose the best answer to complete each of the following sentences.
1. I avoid __________the car whenever possible, especially in a big city
A. took	B. taking	C. is taken	D. take
2. Overpopulation problems __________both the rich and the poor.
A. cause	B. reduce	C. happen	D. affect
3. People move to big cities for better __________
A. standard of living	B. standard life	
C. standard living	D. life of standard
4. The major cause of death for children living in the slums is	 __________
A. immigration	B. malnutrition	C. density	D. illiteracy
5. Overcrowded places have a lot of problems, __________?
A. don’t they	B. does it	C. doesn’t it	D. have they
6. 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
7. Some poor people may __________ crime when they need money.
A. commit	B. accept	C. involve	D. arrive
8. Diseases __________ more quickly in overcrowded areas.
A. move	B.travel	C. spread	D. come
9. The city has to find __________ to homeless people immediately.
A. calories	B. solutions	C. earnings	D. systems
10. 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
11. She can’t give him a decision for the proposal. She needs __________ time to think.
A. more	B. less	C. a little	D. a few
12. __________ is a renewable source.
A. coal	B. oil	C. wind	D. gas
13. It is going to rain any minute now. The children __________ in the rain.
A. is being caught	B. will be caught	C. is caught	D. are caught
14. Wind, hydro and solar are __________ energy sources.
A. modern	B. renewable	C. non-renewable	D. new
15. __________ you __________ up this book for me, please?
A. Are.... going to wrap	B. Will...be wrapping
C. Will ...wrap	D. Have...wrapped
16. Nuclear power	 __________ in the future.
A. will replace	B. replaced	C. will be replaced	 D. replaces
17. It’s really difficult to __________ a bicycle up the hill.
A. fly	B. drive	C. pedal	D. sail
18. At this time next week, we __________ a test on sources of energy.
A. will take	B. take	C. will be taking	D. are taking
19. My children often sleep while they are __________ a plane.
A. hi	B. on	C. by	D. into
20.__________ books are here __________ are there.
A. Theirs/ Ours	B. Their/ Our	C. Theirs/ Our	D. Their/ Ours
21. Many __________ and artistic activities are held as the part of the flower festival in Da Lat.
A. cultural	B. romance	C. disappointed	D. annoyed
22. Wind, hydro and solar are __________ resources.
A. modern	B. renewable	C. non-renewable	D. new
23. At a seasonal festival, people race down the hill to __________ cheese.
A. break	B. catch	C. buy	D. eat
24. They had to wear __________ to protect their eyes at the tomato festival.
A. goggles	B. tradition	C. trucks	D. greasy
25. People are looking for cheap, clean and effective sources of __________
A. solar	B. energy	C. wind	D. water
26. Nuclear energy can provide electricity for the world needs, but it is __________
A. cheap	B. unlimited	C. dangerous	D. safe
27. I like public __________ because it is cheap and convenient.
A. journey	B.travel	C. vehicle	D. transport
28. Do you want to __________ a taxi or a tram to Ha Noi capital?
A. fly	B. walk	C. drive	D. take
29. At 6.00 am tomorrow, we __________ to Canada by plane.
A. will travel	B. will be travelling	
C. will be travelled	D. travel
30. Do you think we __________ driverless car in the future?
A. use	B. to use	C. will use	D. have used
31. He is a teacher, __________?
A. is he	B. doesn’t he	C. wasn’t he	D. isn’t he
32. He is tired, __________ he has to stay up late.
A. therefore	B. so	C. and	D. but
33. The car __________ in Japan
A. is made	B. makes	C. made	D. are made
34. Tom said that he __________ in the city.
A. living	B. lives	C. lived	D. live
35. Let’s play soccer, __________?
A. aren’t you	B. won’t you	C. will we	D. shall we
36. I used for __________ up late, when I was a child.
A. getting	B. got	C. get	D. to get
37. He __________ playing guitar at night.
A. is used to	B. used to	C. use to	D. are used to
38. A __________ is a film that tries to make audiences laugh.
A. sci-fi	B. documentary	C. comedy	D. horror
39. I found the book so __________ that I couldn’t take my eyes off the screen.
A. gripping	B. shocking	C. tiring	D. boring
40. We found the plot of the film __________
A. bored	B. boring	C. interested	D. acting
41. Traffic accidents can be prevented if people __________ the rules.
A. remember	B. obey	C. go after	D. take care of
42. I’m sure you’ll find the film __________	
A. amuse	B. amusing	C. amused	D. amusement
43. Give a __________ before you turn left or right.
A. sign	B. turn	C. sound	D. signal
44. On Thanksgiving, families and friends __________ to have a feast.
A. meet	B. arrive	C. gather	D. appear
45. The University of Indochina __________ in Ha Noi in 1906.
A. built	B. was built	C. has built	D. has been built
46. Last year, we participated in __________ funds for street children.
A. raising	B. making	C. gathering	D. taking
47. The doctor says my father will become ill __________ he stops smoking.
A. until	B. when	C. unless	D. if
48. We __________ to school two years ago. Now I go to school on foot.
A. used to cycle	B. cycled	C. was cycling	D. went
49.	__________ the silly story, many people enjoyed the film.
A. Although	B. In spite of	C. However	D. Nevertheless
50. A friend of __________ corning to stay with me next month.
A. me	B. my.	C. I	D. mine
❸. WORD FORMS
Give the correct form of the word given to complete the sentences.
1. In big cities, there are many wealthy people, but __________is still a problem. (poor)
2. Life must be __________in the slums. (difficulty)
3. The kids look __________enough to go out now. (health)
4. The air in the city is very __________. (pollute)
5. We’ll make this beach clean and __________again. (beauty)
6. The most popular __________ at recess is talking. (act)
7. Many young people are doing __________ service. (common)
8. Living in the city is __________ than living in the countryside.	(noisy)
9. If you want to have a __________ body, you should play sports. (health)
10. We have ____________ work to do in the afternoon than in the morning. (little)
11. Wind power is convenient and ___________	. (abundance)
12. At this time next week, we ___________English grammar. (study)
13. Many poor people in ________ countries don’t have modern sources of energy. (develop)
14. In the future, the wind and the sun _________ as the most important energy sources. (use)
15. My father used ___________a lot of time for the festivals. (spend)
16. The first symptom of the disease is a very high __________. (temperate)
17. The long hot summer has led to serious water__________. (short) 	
18. To have hundreds of___________ people sleeping in the streets of a rich city like London is a crime. (home)
19. Average___________ for skilled workers are rising. (earn)	
20. We lived in rented__________ before buying this house. (accommodate)
21. Drought has________ many countries in Africa after a long period of dry weather. (affect)
22. Nuclear power can be used for___________ or military purposes. (peace)
23. The government is trying to limit population____________. (grow)	
24. A megacity is a very large city with big____________. (popular)
25. Healthcare workers who offer____________ care to others are some of the lowest paid people in the country. (medicine)
❹. VERB FORM
I. Underline the best form.
1. Let’s have a morning walk, do we/ shall we?
2. You used to love going out when we were young, didn’t you/ usedn’t you?
3. Don’t forget to turn off the computer before you leave, can you/ will you?
4. Your father seldom drinks wine, does he/ doesn’t he?
5. I think they’re vegetarians, don’t I/ aren’t they?
6. Somebody told you the secret, didn’t it/ didn’t they?
7. I’m late again, aren’t I/ am not I?
8. This was an interesting exercise, wasn’t this/ wasn’t it?
9. Your grandparents have never been out of the village, have they/ haven’t they?
10. There’s something wrong, isn’t it/ isn’t there?
II. Write the correct form or tense of verbs in brackets.
1. In 2016, more than half of Mumbai's population ___________ (live) in slums.
2. Many people ___________ (move) from small towns to big cities in recent years
3. The world's population ___________ (grow) at a startling rate 
4. In the next forty years, the earth ___________ (accommodate) nearly 3 billion more people. 
5. London ___________ (be) one of the most populated cities of the world.
6. At this time tomorrow, we ___________ (visit) Dharavi slum in Mumbai. 
7. No one ___________ (want) to be homeless-it's dangerous and stressful 
8. The Dharavi slum ___________ (found) in 1883 during the British colonial era. 
9. City governments need ___________ (find) a solution to reduce traffic jams 
10. They don't mind ___________ (help) the people who are in need. 
III. Write the correct form or tense of the verbs in brackets. 
1. In 2017, they ____________ (install) solar panels to provide heat for their hot water. 
2. I ____________ (visit) Rio de Janeiro twice so far. It's very diverse! 
3. Tomorrow at 8p.m James ____________ (watch) a film on Netflix. 
4. I think that driverless cars ____________ (use) widely in the next two decades. 
5. Overcrowding ____________ (cause) huge problems such as housing, congestion, unemployment and air pollution. 
6. Look, Janet! The boy over there ____________ (ride) a Segway. 
7. Since 1990, the population of the city ____________ (grow) by 110,000 people 
8. Hoi Mua Festival ____________ (hold) every March to thank the God for the crop. 
9. My father installed glass in the windows to stop heat ____________ (escape) 
10. I'd prefer ____________ (have) a hover board, so that I can fly to school!
❺. CORRECTION:
1. The city leaders made success to reduce robbery, violent traffic jams and
8. It is said that the quality of atmosphere isn't good for smoke and gases from
 A B C
lots of vehicles.
 D
9. They lack good physics to cure dangerous diseases in the area.
 A B C D
10. Perhaps she won't be driven to visit her friend this time next week because of
 A B C
the prediction of the bad weather.
 D
I.	There is one mistake in each sentence. Underline and correct the mistake.
Sentences
Correction
1.	Don’t let the children to stay up late.
2.	I was coming to your home yesterday evening but you are out.
3.There are more opportunities to find jobs in Hong Kong as in Bangkok
4.	Your uncle works in Ha Noi for one year then moved to Da Nang, didn’t he?	
5.	There used to be less unemployed people in this city five years ago.
6. The black toy car is my, and the white one is hers.
7. She understands the reason for the foundation of the club, didn't she?
8. In 2050, the world's population will grown to 9 billion.
9. Your father used to drink coffee every morning, usedn't he?
10.	 Less than thirty children each year develop the disease. 
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
❻. READING
I.	Fill in the blank to complete the passage.
	Modern cities (1)__________ over the world face the same problems. One of them is poor housing. People often live in old houses or huts that don’t have electricity or sanitation. As city population (2)__________, governments don’t have the money to (3)__________ modern apartment buildings.
	Cars and industries are (4) __________ city air and rivers more and more. Waste that people throw away is burned or ends up in landfills. All of this makes modern cities an (5) __________ place to live in.
	Especially during morning and evening rush hours cities become packed with (6)	. Daily traffic jams make it impossible for people to get to work in time.
	City authorities are (7)__________ more and more money on public transportation and are taking other steps to reduce (8)__________ in cities.
	Cities of today face many social (9)__________. Crime, alcoholism and drug addiction is especially high in cities. Many young people are unemployed. Government organizations work hard to get rid of poverty. They try to give such people (10) __________ education and jobs.
II.	Fill in the blank with a suitable word in the blanket.
	crime	caused	fewer	better	becomes
	prices	provide	exceeds	between	more
	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.
III. Read the text carefully, and then answer the question below.
	Mumbai, which is located in the western coast of India, is the capital of Maharashtra state. It is home to Bollywood, the centre of Hindu movie industry, and the film “Slumdog Millionaire” was based there. Poor people have to live in slums. In the slum, people have to live with many problems. People have to go to the toilets in the streets and there are open sewers. Children play among sewage wastes and doctors deal with 4,000 cases of death a day because of lack of hygiene.
	Next to the open sewers are water pipes which can crack and take in sewage. Dharavi slum is based around this area. There are toxic wastes in the slum including hugely dangerous heavy metals. Dharavi is made of 12 different neighbourhoods and there are no maps or road signs. The further you walk into Dharavi from the edge, the more crowded area becomes. People live in very small slums, often with many members of their extended families.
1.	Where are the toilets in the slum?
2.	Where is Mumbai?
3.	Is Mumbai famous for the film industry? Why or why not?
4.	How many neighbourhoods are there in Dharavi?
5.	What happens to water pipes in Dharavi?
	______________________________________________________
IV. Read and decide if each statement is true or false or not given.
OVERPOPULATION (CONT)
	These two problems are related, but they happen in different parts of the world. Overpopulation tends to be a worse problem in poorer countries where people rely more on farming and often have larger families to help with the workload. Overconsumption is a much worse problem in the richest countries in the world. The reason for this is simple. When people have more money, they use more resources. For example, look at carbon Missions. This is the amount of carbon released into the atmosphere based on the energy people use by doing things like driving a car, riding in an airplane, or heating a house. The carbon emissions of one American today are roughly equal to those of four Chinese, 20 Indians, or 250 Ethiopians. It is basic math that if the rich continue to use the earth’s resources at this pace, one day those resources will run out.
No.
Statements
T
F
NG
1.
Overpopulation and overconsumption are not related to each other.
¨
¨
¨
2.
Overpopulation is the problem of rich country.
¨
¨
¨
3.
The developed countries are worried about overconsumption.
¨
¨
¨
4.
When people have more money, the amount of resources they use is less.
¨
¨
¨
5.
China is now consuming the largest amount of energy in the world.
¨
¨
¨
6.
When people drive a car or heat a house, they release carbon dioxide.
¨
¨
¨
7.
One American person uses the same amount of energy as a Chinese person.
¨
¨
¨
8.
If we continue to use resources of the first at the current pace, our resources will be used up one day.
¨
¨
¨
V. Read the passage and answer the questions given.
	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.
Answer the questions:
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. What remind them about the town?
❼. WRITING
I.	Rewrite the following sentences, beginning as shown, so that the meaning stays the same.
1.	Jakarta doesn’t have as many skyscrapers as Shanghai.
→ Shanghai	
2.	You forgot to turn off the T.V last night, didn’t you?
→ You didn’t remember	?
3.	The countryside doesn’t suffer as much pollution as the city.
→ The countryside	
4.	I think you should go to work by bike.
→ Who don’t	?
5.	New York has more billionaires than Tokyo.
→ Tokyo 	
6.	We will plant more trees along this street.
→ More trees	
7.	Does overpopulation cause a lot of social problems in this area?
→ Overpopulation 	?
8.	Is pollution the most serious problem?
→ Pollution is	?
9.	A group of foreigners visited the slums last week, didn’t they?
→ Did	?
10.	 Mr. Lam lived in the country when he was a child.
→ Mr. Lam used	
II.	Rewrite the sentences, using the frequency of adverbs in bracket.
1.	Have you been to London? (ever)
2.	Peter doesn’t get up before seven.(usually)
3.	Our friends must write tests.(often)
4.	They go swimming in the lake. (sometimes)
5.	The weather is bad in November.(always)
6.	Peggy and Frank are late.(usually)
7.	I have met him before.(never)
8.	John watches TV. (seldom)
9.	I was in contact with my sister. (often)
10.	 She will love him. (always)
III. Write a short paragraph about the population of Mumbai, using the cues given.
1. Mumbai/ one/ most populated cities/ world.
2. Population/ Mumba/ over 12.7 million/ population density/ 20,482 people/ per square kilometer.
3. Like other big cities/ India/ population of Mumbai/ grow/ rapidly/ last 20 years.
4. A large majority/ Mumbai’s population/ migrants/ other states/ India.
5. A large number/ people/ Mumbai/ live/ the slums/ other residential areas.
IV. Write a short paragraph about the population change in Ho Chi Minh city over the past 30 years, using the cues given.
1. Ho Chi Minh City/ largest city/ Viet Nam.
2. 1979/ only 3.4 million/ 10 years later/ only 4 million/ because/ economy/ not/ develop much.
3. Renovation policy/ start/ 1989/ next decade/ dramatic increase/ population/ figure/ over 5 million.
4. With economic growth/ living standard/ Ho Chi Minh City/ higher / other regions/ so/ many people/ look for/ jobs.
5. Ho Chi Minh City/ biggest city/ population/ over 7 million in 2009/ now about 8 million.
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ANSWER KEYS
UNIT 12
❶. PHONETICS
I. Choose the words whose underlined part is pronounced differently from that of the others in each group
1. C 
7. B	
13. B 
19. D
25. B
2. C
8. C
14. B
20. D
26. C
3. D
9. B
15. B
21. D
27. A
4. C
10. D 
16. A
22. A
28. B
5. C
11. A
17. D
23. C
29. D
6. B
12. C
18. C
24. B
30. B
II. Choose the word whose main stressed syllable is placed differently from that of the other in each group.
1. B
4. C
7. A
10. C
13. A
2. B
5. C
8. A 
11. C
14. D
3. A
6. D
9. B
12. B
15. A
❷. MULTIPLE CHOICE
Choose the best answer to complete each of the following sentences.
1. B	
11. A	
21. A	
31. D	
41. B
2. D	
12. C	
22. B	
32. D
42. B
3. A	
13. B	
23. B	
33. A	
43. D
4. B	
14. B	
24. A	
34. C	
44. C
5. A
15. C
25. B	
35. D	
45. B
6. C	
16. C	
26. C
36. C	
46. A
7. A	
17. C	
27. D	
37. A
47. C
8. C	
18. C	
28. D	
38. C	
48. A
9. B	
19. B	
29. B	
39. A	
49. B
10. D
20. D
30. C
40. B
50. D
❸. WORD FORMS
Give the correct form of the word given to complete the sentence.
1. poverty	
6. activities	
1. abundant	
16. temperature
2. difficult
7. common
2. will be studying
17. shortages
3. healthy	
8. noisier	
3. developing	
18. homeless
4. polluted	
9. healthy	
4. will be used
19. earnings
5. beautiful
10. less
5. to spend
20. accommodation
21. affected
22. peaceful 
23. growth
24. population
25. medical
❹. VERB FORM
I. Underline the best form.
1. shall we?
6. didn’t they?
2. didn’t you
7. aren’t I
3. will you
8. wasn’t it
4. does he
9. have they
5. aren’t they
10. isn’t there
II. Write the correct form or tense of verbs in brackets.
1. lived
6. will be visiting
2. have moved
7. wants
3. is growing
8. was founded
4. will accommodate
9. to find
5. is
10. helping
III. Write the correct form or tense of the verbs in brackets. 	
1. installed
6. is riding
2. have visited
7. has grown
3. will be watching
8. is held
4. will be used
9. escaping
5. causes
10. to have
❺. CORRECTION
I. Choose the underlined word or phrase (marked A, B, C or D) in each sentence that needs correcting.
1.C
2.A
3.C
4.B
5.A
6.D
7.D
8.B
9.A
10.B
II.	There is one mistake in each sentence. Underline and correct the mistake.
1. to stay→ stay up
6. my→ mine 
2. are→ were
7. understands→ understood 
3. as→ than
8. grown → grow
4. works→ worked
9. usedn't he? → didn’t he?
5. less→ fewer
10. Less → Fewer
❻. READING
I.	Fill in the blank to complete the passage.
1. all
2. grows
3. build
4. polluting
 5. unhealthy
6. vehicles
7. spending
8. traffic
9. problems
 10. better
II.	Fill in the blank with a suitable word in the blanket.
1. exceeds
2. caused
3. better
4. becomes
5. fewer
6. crime
7. provide
8. between
9. prices
10. more
III. Read the text carefully, and then answer the question below.
1. The toilets are in the streets.
2. Mumbai is located on the western coast of India.
3. Yes, it is. Because it is home to Bollywood, the centre of Hindu movie industry.
4. There are 12 different neighbourhoods in Dharavi.
5. They can crack and take in sewage.
IV. Read and decide if each statement is true or false or not given.
1. F
2. F
3. T
4. F
5. NG
6. T
7. F
8. T
V. Read the passage and answer the questions given.
1. She lives in a village in Africa.
2. She walks to the river.
3. No, it isn’t.
4. She does the gardening every morning.
5. She collects some water.
❼. WRITING
I.	Rewrite the following sentences, beginning as shown, so that the meaning stays the same.
1. Shanghai has more skyscrapers than Jakarta.
2. You didn’t remember to turn off the T.V last night, did you?
3. The countryside suffers less pollution than the city.
4.