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Environmental pollution is one of the most (24)______problems of mankind today.Air, and soil are necessary to all (25) |_______ things. Man operates machines and vehicles (26)_________fill the air with noise. They also dirty the air with gases and smoke. (27) ________ polluted air can cause illness and even death. Man destroys natural beauty by (28) ________ garbage on the land and in the water. They poison the water (29)_______ chemicals and other substances. Polluted water lkills fish and other marine life. They damage the soil with too many(30)________ and pesticides. Governments should pass laws that (31)________ people and factory to stop certain polluting activities.
24. a. careful b. simple c. serious d. specia
25. a. live b. lively c. alive d. living
26. a. what b. that c. these d. those
27. a. Badly b. Hardly c. Mostly d. Mainly
28. a. picking b. collecting c. clearing d. littering
29. a. by b. with c. in d. to
30. a. fertilize b. fertility c. fertilizers d. fertilization
31. a. require b. advise c. suggest d. offer

A. Choose the one option (a, b, c or d) that best completes the passage. Environmental pollution is a term that (1) __________to all the ways by which man pollutes his surroundings. Man dirties the air with (2) __________gases and smoke, (3)__________ the water with chemicals and other substances, and damages the (4) ____________with too many fertilizers and pesticides. Man also pollutes his the surounding (5)_________ various other ways. For example, people ruin natural beauty by...
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A. Choose the one option (a, b, c or d) that best completes the passage. Environmental pollution is a term that (1) __________to all the ways by which man pollutes his surroundings. Man dirties the air with (2) __________gases and smoke, (3)__________ the water with chemicals and other substances, and damages the (4) ____________with too many fertilizers and pesticides. Man also pollutes his the surounding (5)_________ various other ways. For example, people ruin natural beauty by (6)__________junk and litter on the land and in the water. Environmental pollution is one of the most serious problems facing of all mankind today. Air, water, and soil are necessary to the (7)________of all living things. Badly polluted air can cause illness, and (8) _________dead. Polluted water kills fish and other (9)_______life. Pollution of soil reduces the amount of land that is available for growing food. Environmental pollution also brings uglincss to man's (10) __________beautiful world. d. reduces d. influen 1. a. means d. reduces b. refers c. provides 2. a. thick b. natural c. exhaust d. ìnluent 3. a. purifies b. pumps c. sprays d. contaminates 4. a. soil c. streets d. beaches b. forests 5. a. on C.by d. with b. in 6. a. spoiling d. gathering b. leaving c. scattering 7. a. survival b. environment c. development d. growth 8. a. so d. even b. ever c. too 9. a. animal b. marine c. human. d.plant 10. a. natureb. natural c. naturally d. natured
1
29 tháng 9 2018

A. Choose the one option (a, b, c or d) that best completes the passage. Environmental pollution is a term that (1) __________to all the ways by which man pollutes his surroundings. Man dirties the air with (2) __________gases and smoke, (3)__________ the water with chemicals and other substances, and damages the (4) ____________with too many fertilizers and pesticides. Man also pollutes his the surounding (5)_________ various other ways. For example, people ruin natural beauty by (6)__________junk and litter on the land and in the water. Environmental pollution is one of the most serious problems facing of all mankind today. Air, water, and soil are necessary to the (7)________of all living things. Badly polluted air can cause illness, and (8) _________dead. Polluted water kills fish and other (9)_______life. Pollution of soil reduces the amount of land that is available for growing food. Environmental pollution also brings uglincss to man's (10) __________beautiful world. d. reduces d. influen

1. a. means d. reduces b. refers c. provides

2. a. thick b. natural c. exhaust d. ìnluent

3. a. purifies b. pumps c. sprays d. contaminates

4. a. soil c. streets d. beaches b. forests

5. a. on C.by d. with b. in

6. a. spoiling d. gathering b. leaving c. scattering

7. a. survival b. environment c. development d. growth

8. a. so d. even b. ever c. too

9. a. animal b. marine c. human. d.plant

10. a. natureb. natural c. naturally d. natured

B. Read the text carefully, then choose the correct answers. More than two hundred years ago, the term 'environmental pollution was quite strange to people. They lived healthily, drank pure water, and breathed fresh air. Nowadays, the situation is quite different. People all over the world are worried about things that are happening to the envi Actually it is man that is destroying the surroundings with many kinds of wastes. Everybody knows that motorbikes and cars emit dangerous gases that...
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B. Read the text carefully, then choose the correct answers. More than two hundred years ago, the term 'environmental pollution was quite strange to people. They lived healthily, drank pure water, and breathed fresh air. Nowadays, the situation is quite different. People all over the world are worried about things that are happening to the envi Actually it is man that is destroying the surroundings with many kinds of wastes. Everybody knows that motorbikes and cars emit dangerous gases that cause poisonous air and cancer, but no one wants to travel on foot or by bicycle. Manufactures know that wastes from factories make water and soil polluted, but they do not want to spend a lot of their money on treating the wastes safely. Scattering garbage is bad for our health, but no one wants to spend time burying it. Is it worth talking a lot about pollution? 1. More than two hundred years ago a. the environment was polluted as much as it is today b. people knew nothing about environmental pollution c. air was polluted badly d. people were faced with pollution d. people were faced with pollution 2. Nowadays, many people are concerned about the b. the polluted water a.the poisonous air c. the wastes from the factories d. the environmental pollution 3. According to the passage, people know that mortorbikes and cars emit dangerous gases a. so they do not travel by motorbikes and cars b. so they prefer traveling by bicycles c. but they still prefer traveling by mbtorbikes. and cars d. and they enjoy traveling on foot 4. Factory owners a. know nothing about pollution b. pollute water and soil c spend a lot of money on treating wastes d. don't treat industrial waste safely 5. Which of the followings is not true? a. in former days, people led a healthy life. b. People have no awareness of the dangerous of pollution c. Water is now heavily contaminated by industrial waste d. It's harmful for our health if rubbish is spreaded over our areas
2
29 tháng 9 2018

B. Read the text carefully, then choose the correct answers.

More than two hundred years ago, the term 'environmental pollution was quite strange to people. They lived healthily, drank pure water, and breathed fresh air. Nowadays, the situation is quite different. People all over the world are worried about things that are happening to the envi Actually it is man that is destroying the surroundings with many kinds of wastes. Everybody knows that motorbikes and cars emit dangerous gases that cause poisonous air and cancer, but no one wants to travel on foot or by bicycle. Manufactures know that wastes from factories make water and soil polluted, but they do not want to spend a lot of their money on treating the wastes safely. Scattering garbage is bad for our health, but no one wants to spend time burying it. Is it worth talking a lot about pollution?

1. More than two hundred years ago

a. the environment was polluted as much as it is today

b. people knew nothing about environmental pollution

c. air was polluted badly

d. people were faced with pollution

2. Nowadays, many people are concerned about the

b. the polluted water

a.the poisonous air

c. the wastes from the factories

d. the environmental pollution

3. According to the passage, people know that mortorbikes and cars emit dangerous gases

a. so they do not travel by motorbikes and cars

b. so they prefer traveling by bicycles

c. but they still prefer traveling by mbtorbikes. and cars

d. and they enjoy traveling on foot

4. Factory owners

a. know nothing about pollution

b. pollute water and soil

c spend a lot of money on treating wastes

d. don't treat industrial waste safely

5. Which of the followings is not true?

a. in former days, people led a healthy life.

b. People have no awareness of the dangerous of pollution

c. Water is now heavily contaminated by industrial waste

d. It's harmful for our health if rubbish is spreaded over our areas

1 tháng 3 2023

1b 

2a

3d

4c

5d

Choose the word (A, B,C or D) that best completes the following passage. Environmental (41)……………is one of the most serious problems (42)……………mankind today. Air, water and soil are necessary to the survival of all (43)………………things. Badly polluted air can (44)………………illness and even death. Polluted water (45)…………… many kinds of wild animals and other marine life. Pollution of soil reduces the amount of land  (46) ……………growing food.41.A. pollute           B. polluted                         C....
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Choose the word (A, B,C or D) that best completes the following passage. 

Environmental (41)……………is one of the most serious problems (42)……………mankind today. Air, water and soil are necessary to the survival of all (43)………………things. Badly polluted air can (44)………………illness and even death. Polluted water (45)…………… many kinds of wild animals and other marine life. Pollution of soil reduces the amount of land  (46) ……………growing food.

41.A. pollute           B. polluted                         C. pollution                       D. polluting

42.A. face               B. faces                             C. to face                          D. facing

43.A. lived              B. living                            C. live                               D. lives

44.A. cause             B. give                              C. make                            D. catch

45.A. kills               B. kill                                C. are killing                     D. doesn’t kill

46.A. of                  B. to                                  C. from                             D. for

1
17 tháng 8 2021

Choose the word (A, B,C or D) that best completes the following passage. 

Environmental (41)……………is one of the most serious problems (42)……………mankind today. Air, water and soil are necessary to the survival of all (43)………………things. Badly polluted air can (44)………………illness and even death. Polluted water (45)…………… many kinds of wild animals and other marine life. Pollution of soil reduces the amount of land  (46) ……………growing food.

41.A. pollute           B. polluted                         C. pollution                       D. polluting

42.A. face               B. faces                             C. to face                          D. facing

43.A. lived              B. living                            C. live                               D. lives

44.A. cause             B. give                              C. make                            D. catch

45.A. kills               B. kill                                C. are killing                     D. doesn’t kill

46.A. of                  B. to                                  C. from                             D. for

V. Choose the one option that best completes the passage. The largest lunar (24) __________in Vietnam is Tet, (25)__________occurs in the first month of the lunar calendar. It is the lunar New Year and usually continues for a week with visits to (26) _________, temples and friends and ends with sacrifices. A festival that is (27)_______with the children is the Moon Festival, held in the 8th lunar month. There are parades for children, with lanterhs, dances and drums that last (28)______the...
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V. Choose the one option that best completes the passage.
The largest lunar (24) __________in Vietnam is Tet, (25)__________occurs in the first month of the lunar calendar. It is the lunar New Year and usually continues for a week with visits to (26) _________, temples and friends and ends with sacrifices. A festival that is (27)_______with the children is the Moon Festival, held in the 8th lunar month. There are parades for children, with lanterhs, dances and drums that last (28)______the moon is halfway in the sky. At that time the (29)________cakes (filled with five fillings candied egg, lard, beans, pumpkin, lotus seeds) are eaten. Children are also (30)______with this festival for all the above reasons as (31)__________ as the fact they are laden with presents.
24. a. season b. celebration c. parade d. occasion
25. a. it b. that c. what d. which
26. a. relations b. relators c. relatives d. relationships
27. a. popular b. important c. regular d. necessary
28. a. during b. when c. before d. until
29. a. sticky c. fruit d. cream b. moon
30. a. thrill c. thrilled d. thrillers b. thrilling
31. a. well d. much c. soon b. good

1
17 tháng 2 2019

24b 25d 26c 27a 28d 29b 30c 31a

II/ Read the passage and answer the question : Air pollution is a serious problem in many cities. Motor vehicles, factories and other source create so much air pollution that it may hang in the air like dirty fog. Air pollution threatens the health of the people who live in cities. City wastes cause water pollution when they are poured into the waterways. These wastes kill fish and make some areas unfit for swimming. In addition, many large cities have difficulties in disposing their garbage....
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II/ Read the passage and answer the question :
Air pollution is a serious problem in many cities. Motor vehicles, factories and other source create so
much air pollution that it may hang in the air like dirty fog. Air pollution threatens the health of the
people who live in cities. City wastes cause water pollution when they are poured into the waterways.
These wastes kill fish and make some areas unfit for swimming. In addition, many large cities have
difficulties in disposing their garbage. The amount of garbage grows each year, but places to put it are
quickly filling up Citizens, governments, industries, scientists and business people must work
together in different ways to gradually reduce pollution.
True ( T ) or False ( F ) in the space provided
1/ Air pollution is a serious (dangerous) problem in many cities . __________
2/ Air pollution doesn't cause danger to people's health in some cities
3/ Motor vehicles and factories are some of sources of air pollution . ____________
4/ Only factories are the main source of air pollution ._________
5/ Air pollution is the only problem of the environment in this passage .
6/ Some areas are unfit for swimming because of the city wastes .____________
7/ The amount of the garbage in large cities reduces each year ._________
8/ Everyone must cooperate to reduce pollution . ______________

III/ Read the passage and answer the question :
Everyone wants to reduce pollution, but the pollution problem is as complicated as it is serious.
It is complicated because much pollution is caused by things that benefit people. For example,
exhaust from motorbikes causes large percentage of air pollution. But the automobile provides
transportation to millions of people. Factories discharge much of the material that pollutes air
and water, but factories give employment to a large number of people.
Thus, to end or reduce pollution immediately, people would have to stop using many things that
benefit them . Most people do not want to do that, of course. But pollution can be gradually
reduced in many ways. Scientists and engineers can work to find ways to lessen the amount of
pollution that such things as automobiles and factories cause. Governments can pass and enforce
laws that require businesses and individuals to stop or to cut down on certain polluting activities.
True ( T ) or False ( F ) :
1. All people want to reduce pollution_____
2. Pollution problem is neither complicated nor serious_____
3. Pollution is brought about by things that benefit people_____

4. People have to sacrifice what they have to stop or reduce pollution_____
5. The government can't do anything to stop or reduce pollution.______

IV/ Read the passage and answer the questions:
Every day on radio, on TV and in the newspapers, we hear , see, read about many problems in
the world , for example , pollution problems.
Air pollution is the first kind. It mostly comes from fumes released from motorbikes, cars,
airplanes, trains and poisonous gases emitted from factories. Also, waste is dumped anywhere even
in the city where many people are living. The second pollution is sea pollution. Many people earn
their living from fishing the sea, and the fish they catch feed many people. But the sea has become so
polluted from oil spills and factory wastes that the fish are dying. This pollution is not only killing the
fish, but also affecting those people who eat fish.
Seldom do you find a place nowadays that is not polluted. This problem is growing more
difficult every day. We must find a good solution that makes the world a better place to live.
True — False — Not given?
1. Pollution is one of the city's problems_____
2. Exhaust fume comes from vehicles , airplane and factories_____
3. People pollute seas from dynamite fishing____
4. You can find easily a place nowadays that is not polluted_____

0
Environmental pollution is a term that refers to all the ways by (1)…….man pollutes his surroundings. Man dirties the air with exhaust gases and smoke, contaminates the water with chemicals and other substances, and damages the (2) …..with too many fertilizers and pesticides. Man also pollutes his surroundings in various other ways. For example, people ruin natural beauty by scattering junk and litter on the land and in the water.            Environmental pollution is one of the most serious...
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Environmental pollution is a term that refers to all the ways by (1)…….man pollutes his surroundings. Man dirties the air with exhaust gases and smoke, contaminates the water with chemicals and other substances, and damages the (2) …..with too many fertilizers and pesticides. Man also pollutes his surroundings in various other ways. For example, people ruin natural beauty by scattering junk and litter on the land and in the water.

            Environmental pollution is one of the most serious problems (3) ………….. mankind today. Air, water, and soil are necessary to the survival of living things. Badly polluted air can cause illness, and even death. Polluted water kills fish and other (4) ….life. Pollution of soil reduces the amount of land that is available for growing food. Environmental pollution also brings ugliness (5) …….man’s natural beautiful world.

1. A. that                    B. whom                    C. which                    D. whose

2. A. soil                    B. forest                     C. beach                     D. stream

3. A. faces                 B. faced                     C. to face                   D. facing

4. A. human              B. marine                   C. animal                   D. plant

5. A. to                       B. on                           C. for                          D. in

1
9 tháng 2 2023

Environmental pollution is a term that refers to all the ways by (1)…which….man pollutes his surroundings. Man dirties the air with exhaust gases and smoke, contaminates the water with chemicals and other substances, and damages the (2) …soil..with too many fertilizers and pesticides. Man also pollutes his surroundings in various other ways. For example, people ruin natural beauty by scattering junk and litter on the land and in the water.

            Environmental pollution is one of the most serious problems (3) ...facing.. mankind today. Air, water, and soil are necessary to the survival of living things. Badly polluted air can cause illness, and even death. Polluted water kills fish and other (4) ..marine.life. Pollution of soil reduces the amount of land that is available for growing food. Environmental pollution also brings ugliness (5) … to ….man’s natural beautiful world.

Chbose the best answer to complete each of the following sentences. 1. i am............that people have destroyed this land. A. excited B. disappointed C. pleased D.interested 2. it is...........to work in this city with so much noise and pollution. A: healthy B. health C. unhealthy D. healthful 3. The environmentalists are happy.............the battle against dynamite fishing. B. to gain C. to get . D. to keep A. to win 4. Everyone should be responsible for............. the...
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Chbose the best answer to complete each of the following sentences.

1. i am............that people have destroyed this land.

A. excited B. disappointed C. pleased D.interested

2. it is...........to work in this city with so much noise and pollution.

A: healthy B. health C. unhealthy D. healthful

3. The environmentalists are happy.............the battle against dynamite fishing.

B. to gain C. to get . D. to keep A. to win

4. Everyone should be responsible for............. the environment.

A. protecting B. protect C. protects D. protected

5. If we use .............paper, we will save more trees in the forest.

A. little B. a few C. less D. fewer

6. have you ever thought of protecting wide life........... extinction?

B. on D. from A. to C. of

7. Using public transports instead of motorbikes helps to ............the environmental pollution.

B: increase :D: avoid C. pull A. reduce

8. The purpose of this project is................people to plant and take care of trees.

B. to encourage D. encouragement A. encourages C. encouraged

9. It's not difficult.............used paper, bottles and cans, is it?

B. collecting C. collection D. to collect A. collect

10. We can ...............air pollution by planting more trees, along the streets.

B. reduce A. reuse C. recycle D. redo

11. What will we... if we work hard today?

A. do B. make C. take D. achieve

12. Polluted water can directly harm to people's health and kill fish.

D. have A. make C. five B. do

13. The area around the beach is so................ of wants trash that no one wants to go swimming and sunbathing there.

B. filled C. crowded A. full D. many

14. In former days, people............. a healthy life.

D: built C. won A. lived B. got

15. Using public transport is a goodway to........... traffic jams and air pollution.

A. produce B.reduce C. increase D. stop

16. Some farmers don't realize that they are destroying the environment with too many............

A. pesticides B. chemicals C: treasures D. medicines

17. Smoke and waste........... from factories in-big cities have polluted the air and water.

B. chemicals D. things C. food A. garbage

18.............polluted air can cause illness, and even death.

C. worst B. worse D. badly A. bad

19. There are ...........factories in this area that people's health is affected a lot.

A. so much B. much C. so many D. lot of

20. If we don't take our rubbish to the council garbage dump, we'll have to .............a fine.

A. have B. keep C. win D.pay

1
20 tháng 10 2018

Chbose the best answer to complete each of the following sentences.

1. i am............that people have destroyed this land.

A. excited B. disappointed C. pleased D.interested

2. it is...........to work in this city with so much noise and pollution.

A: healthy B. health C. unhealthy D. healthful

3. The environmentalists are happy.............the battle against dynamite fishing.

B. to gain C. to get . D. to keep A. to win

4. Everyone should be responsible for............. the environment.

A. protecting B. protect C. protects D. protected

5. If we use .............paper, we will save more trees in the forest.

A. little B. a few C. less D. fewer

6. have you ever thought of protecting wide life........... extinction?

B. on D. from A. to C. of

7. Using public transports instead of motorbikes helps to ............the environmental pollution.

B: increase :D: avoid C. pull A. reduce

8. The purpose of this project is................people to plant and take care of trees.

B. to encourage D. encouragement A. encourages C. encouraged

9. It's not difficult.............used paper, bottles and cans, is it?

B. collecting C. collection D. to collect A. collect

10. We can ...............air pollution by planting more trees, along the streets.

B. reduce A. reuse C. recycle D. redo

11. What will we... if we work hard today?

A. do B. make C. take D. achieve

12. Polluted water can directly harm to people's health and kill fish.

D. have A. make C. five B. do

13. The area around the beach is so................ of wants trash that no one wants to go swimming and sunbathing there.

B. filled C. crowded A. full D. many

14. In former days, people............. a healthy life.

D: built C. won A. lived B. got

15. Using public transport is a goodway to........... traffic jams and air pollution.

A. produce B.reduce C. increase D. stop

16. Some farmers don't realize that they are destroying the environment with too many............

A. pesticides B. chemicals C: treasures D. medicines

17. Smoke and waste........... from factories in-big cities have polluted the air and water.

B. chemicals D. things C. food A. garbage

18.............polluted air can cause illness, and even death.

C. worst B. worse D. badly A. bad

19. There are ...........factories in this area that people's health is affected a lot.

A. so much B. much C. so many D. lot of

20. If we don't take our rubbish to the council garbage dump, we'll have to .............a fine.

A. have B. keep C. win D.pay

I Phonetics: A. Choose the word whose underline part is pronounced differently from that of the others 1. A. plumber B. hobby C. bulb D. garbage 2. A. leave B. beach C. instead D. clean B. Choose the word whose main stress pattern is not the same as that of the others 1. A. pollute B. conserve C. reduce D. cover 2. A. energy B. innovation C. model D. household II. Circle the best answer 1. I am .............................. that you failed the exam A. disappointed B. pleased C....
Đọc tiếp

I Phonetics:

A. Choose the word whose underline part is pronounced differently from that of the others

1. A. plumber B. hobby C. bulb D. garbage

2. A. leave B. beach C. instead D. clean

B. Choose the word whose main stress pattern is not the same as that of the others

1. A. pollute B. conserve C. reduce D. cover

2. A. energy B. innovation C. model D. household

II. Circle the best answer

1. I am .............................. that you failed the exam

A. disappointed B. pleased C. disappoint D. disappointment

2. I coudn't go to the supermarket because I had to look.............................my chidren

A. for B. after C. up D. at

3. You should get a..................................to check the cracks in the pipes

A. mechanic B. engineer C. plumber D. dentist

4. Please turn.............................the lights before going out

A. on B. off C. up D. at

5. .............................take the bicycle to school?

A. let's B. what about C. why don't we D. I suggest

6. She is ............................pleased that her daughter got good grades

A. extreme B. extremely C. extremed D. extreming

7. The accident happened because of driving......................

A. careful B. carefully C. careless D. carelessly

8. ...............................you get up early, you will miss the train

A. unless B. if C. because D. so

9. He is short; ........................., he plays basketball well

A. because B. because of C. however D. therefore

10. Circle a mistake

I suggest that he should practices playing the piano

III. Give the correct word forms

1. Don't forget to drive .........................(care)

2. Ther is a .............................faucet in my house (drip)

3. The environment will become ............................polluted (serious)

4. I want to ............................ our environment (polection)

IV. Read the passage and do the tasks:

A. Circle the best options to complete the passage

Environment (1).................... is a term that refer to all the ways by which man pollute his surrounding. Man dirties the air with gases and smoke, poisons the water with (2) .................and other subtances, and damage the soil with two many (3)...........................and pesticides. Man also pollute his surroundingsin various other ways. For example, people ruin natural (4).......................... by scattering junk and litter on the land and in the water. They operate machines and motor vehicles that fill the air with disturbing noise

1. A. pollute B. polluted C. pollutement D. pollution

2. A. chemical B. chemicals C. chemistry D. chemist

3. A. fertilize B. fertilizer C. fertilizers D. fertilized

4. A. beauty B. beautiful C. beautifully D. beautify

1
20 tháng 3 2020

I
A 1a -2c
B 1b- 2b
II
1a -2b-3c-4b-5c-6b-7d-8a-9c
III
1 carefully
2dripping
3serious
4
IV
1d-2c-3b-4a

20 tháng 3 2020

cảm ơn nha

Energy efficiency and energy conservation aren’t the same thing, but they have a similar (25): to reduce energyuse. Here’s the difference. Energy conservation relies on people cutting back on activities that (26) energy—byturning off lights or driving less or using appliances less often. Energy efficiency harnesses technology to helpavoid or reduce energy (27) so that you can still turn on the lights, drive, or wash your clothes but use less energydoing so. Why is it important to use less...
Đọc tiếp

Energy efficiency and energy conservation aren’t the same thing, but they have a similar (25): to reduce energy
use. Here’s the difference. Energy conservation relies on people cutting back on activities that (26) energy—by
turning off lights or driving less or using appliances less often. Energy efficiency harnesses technology to help
avoid or reduce energy (27) so that you can still turn on the lights, drive, or wash your clothes but use less energy
doing so. Why is it important to use less energy?
Using less energy through (28) measures is good for the economy and your wallet. By reducing the (29) of
energy required for certain tasks, energy efficiency is also good for the planet. It can help to reduce air and water
pollution (30) by certain types of energy generation and avoid negative impacts on critical ecosystems.
(harness: make use of to produce energy)
25. A. goal B. propose C. result D. cause 25. …
26. A. spend B. release C. consume D. have 26. …
27. A. use B. waste C. bill D. taking 27. …
28. A. efficient B. effective C. effect D. efficiency 28. …
29. A. amount B. number C. quality D. quantity 29. …
30. A. to cause B. caused C. cause D. causing 30. …

1
11 tháng 2 2020

25 B

26 C

27 B

28 B

29 A

30 C