Give the correct form of the words given to complete the sentences.
1.The _______contaminaion_______ of lakes, rivers, oceans or underwater CONTAMINATE
water pollution.
2. The street doesn’t look_______attractive______ because it has a lot of rubbish.ATTRACT
3. The music club made so much noise that the_____residents_____ complained to REDIDE
its owner.
4. Are all types of pollution_____harmful_____ to the health of humans and animals? HARM
5. The______environmentalists_______ are concerned about the oil spills in East Sea. ENVIROMENT
6. Dumping ______industrial_____waste into the lakes and rivers has caused INDUSTRY
Serious water pollution.
7. Many people in this area have cholera because they drink ____untreated_____water. TREAT
8.Examples of primary________pollutants________are exhaust fumes from cars, POLLUTE
soot from smoke and ash from volcanic eruption.
9. If we use water______carefully______ , more people will have fresh water. CARE
10. The polluted water results in the ____death_____of many aquatic animals DIE
And plants.
III. Combine the sentences in each pair into a new sentence that shows a cause/effect relationship. Use the words in brackets.
1.Many rivers and lakes are poisoned. Factories produce waste and pour it into rivers and lakes. (because)
-> Because factories produce waste and pour it into rivers and lakes, many rivers and lakes are poisoned.
2. The environment is polluted. Birds leave their habitats and plants die. (make)
-> The pollution of the environment makes birds leave their habitats and plants die.
3. Plastic bags are a major source of waste. We should not throw plastic bags everywhere. (so).
-> Plastic bags are a major source of waste so we should not throw plastic bags everywhere.
4. The food is contaminated. People’s health is poor. (results in)
-> The contamination of the food results in people's poor health.
5. Factories release fumes. The air breathe gets polluted. (due to)
-> The air breathe gets polluted due to the release of fumes from factories.
IV. Combine each pair of sentences to form a conditional sentence, using “if” Type 2.
1.The factory is located near our village. There is air pollution and noise pollution.
-> If the factory weren't located near our village, there wouldn't be air pollution and noise pollution.
2. The local people have to use water from the polluted river. They don’t have fresh water.
-> If the local people had fresh water, they wouldn't have to use water from the polluted river.
3. Trees and grasses cannot grow here. The soil is badly polluted.
-> If the soil weren't badly polluted, trees and grass could grow here.
4. Mr Quang works in a noisy environment. His hearing becomes worse.
-> If Mr Quang didn't work in a noisy environment, his hearing wouldn't become worse.

Give the correct form of the words given to complete the sentences.
1.The _______contaminaion_______ of lakes, rivers, oceans or underwater CONTAMINATE
water pollution.
2. The street doesn’t look_______attractive______ because it has a lot of rubbish.ATTRACT
3. The music club made so much noise that the_____residents_____ complained to REDIDE
its owner.
4. Are all types of pollution_____harmful_____ to the health of humans and animals? HARM
5. The______environmentalists_______ are concerned about the oil spills in East Sea. ENVIROMENT
6. Dumping ______industrial_____waste into the lakes and rivers has caused INDUSTRY
Serious water pollution.
7. Many people in this area have cholera because they drink ____untreated_____water. TREAT
8.Examples of primary________pollutants________are exhaust fumes from cars, POLLUTE
soot from smoke and ash from volcanic eruption.
9. If we use water______carefully______ , more people will have fresh water. CARE
10. The polluted water results in the ____death_____of many aquatic animals DIE
And plants.
III. Combine the sentences in each pair into a new sentence that shows a cause/effect relationship. Use the words in brackets.
1.Many rivers and lakes are poisoned. Factories produce waste and pour it into rivers and lakes. (because)
-> Because factories produce waste and pour it into rivers and lakes, many rivers and lakes are poisoned.
2. The environment is polluted. Birds leave their habitats and plants die. (make)
-> The pollution of the environment makes birds leave their habitats and plants die.
3. Plastic bags are a major source of waste. We should not throw plastic bags everywhere. (so).
-> Plastic bags are a major source of waste so we should not throw plastic bags everywhere.
4. The food is contaminated. People’s health is poor. (results in)
-> The contamination of the food results in people's poor health.
5. Factories release fumes. The air breathe gets polluted. (due to)
-> The air breathe gets polluted due to the release of fumes from factories.
IV. Combine each pair of sentences to form a conditional sentence, using “if” Type 2.
1.The factory is located near our village. There is air pollution and noise pollution.
-> If the factory weren't located near our village, there wouldn't be air pollution and noise pollution.
2. The local people have to use water from the polluted river. They don’t have fresh water.
-> If the local people had fresh water, they wouldn't have to use water from the polluted river.
3. Trees and grasses cannot grow here. The soil is badly polluted.
-> If the soil weren't badly polluted, trees and grass could grow here.
4. Mr Quang works in a noisy environment. His hearing becomes worse.
-> If Mr Quang didn't work in a noisy environment, his hearing wouldn't become worse.

1.contamination

2.attractive

3.residential

4.harming

5. mình ko rõ

6.industrial

7.adj của nó mình tìm ko ra

8pollution

9carefully

10death

Give the correct form of the words given to complete the sentences.
1.The _______contaminaion_______ of lakes, rivers, oceans or underwater CONTAMINATE
water pollution.
2. The street doesn’t look_______attractive______ because it has a lot of rubbish.ATTRACT
3. The music club made so much noise that the_____residents_____ complained to REDIDE
its owner.
4. Are all types of pollution_____harmful_____ to the health of humans and animals? HARM
5. The______environmentalists_______ are concerned about the oil spills in East Sea. ENVIROMENT
6. Dumping ______industrial_____waste into the lakes and rivers has caused INDUSTRY
Serious water pollution.
7. Many people in this area have cholera because they drink ____untreated_____water. TREAT
8.Examples of primary________pollutants________are exhaust fumes from cars, POLLUTE
soot from smoke and ash from volcanic eruption.
9. If we use water______carefully______ , more people will have fresh water. CARE
10. The polluted water results in the ____death_____of many aquatic animals DIE
And plants.
III. Combine the sentences in each pair into a new sentence that shows a cause/effect relationship. Use the words in brackets.
1.Many rivers and lakes are poisoned. Factories produce waste and pour it into rivers and lakes. (because)
-> Because factories produce waste and pour it into rivers and lakes, many rivers and lakes are poisoned.
2. The environment is polluted. Birds leave their habitats and plants die. (make)
-> The pollution of the environment makes birds leave their habitats and plants die.
3. Plastic bags are a major source of waste. We should not throw plastic bags everywhere. (so).
-> Plastic bags are a major source of waste so we should not throw plastic bags everywhere.
4. The food is contaminated. People’s health is poor. (results in)
-> The contamination of the food results in people's poor health.
5. Factories release fumes. The air breathe gets polluted. (due to)
-> The air breathe gets polluted due to the release of fumes from factories.
IV. Combine each pair of sentences to form a conditional sentence, using “if” Type 2.
1.The factory is located near our village. There is air pollution and noise pollution.
-> If the factory weren't located near our village, there wouldn't be air pollution and noise pollution.
2. The local people have to use water from the polluted river. They don’t have fresh water.
-> If the local people had fresh water, they wouldn't have to use water from the polluted river.
3. Trees and grasses cannot grow here. The soil is badly polluted.
-> If the soil weren't badly polluted, trees and grass could grow here.
4. Mr Quang works in a noisy environment. His hearing becomes worse.
-> If Mr Quang didn't work in a noisy environment, his hearing wouldn't become worse.

Give the correct form of the words given to complete the sentences.
1.The _______contaminaion_______ of lakes, rivers, oceans or underwater CONTAMINATE
water pollution.
2. The street doesn’t look_______attractive______ because it has a lot of rubbish.ATTRACT
3. The music club made so much noise that the_____residents_____ complained to REDIDE
its owner.
4. Are all types of pollution_____harmful_____ to the health of humans and animals? HARM
5. The______environmentalists_______ are concerned about the oil spills in East Sea. ENVIROMENT
6. Dumping ______industrial_____waste into the lakes and rivers has caused INDUSTRY
Serious water pollution.
7. Many people in this area have cholera because they drink ____untreated_____water. TREAT
8.Examples of primary________pollutants________are exhaust fumes from cars, POLLUTE
soot from smoke and ash from volcanic eruption.
9. If we use water______carefully______ , more people will have fresh water. CARE
10. The polluted water results in the ____death_____of many aquatic animals DIE
And plants.
III. Combine the sentences in each pair into a new sentence that shows a cause/effect relationship. Use the words in brackets.
1.Many rivers and lakes are poisoned. Factories produce waste and pour it into rivers and lakes. (because)
-> Because factories produce waste and pour it into rivers and lakes, many rivers and lakes are poisoned.
2. The environment is polluted. Birds leave their habitats and plants die. (make)
-> The pollution of the environment makes birds leave their habitats and plants die.
3. Plastic bags are a major source of waste. We should not throw plastic bags everywhere. (so).
-> Plastic bags are a major source of waste so we should not throw plastic bags everywhere.
4. The food is contaminated. People’s health is poor. (results in)
-> The contamination of the food results in people's poor health.
5. Factories release fumes. The air breathe gets polluted. (due to)
-> The air breathe gets polluted due to the release of fumes from factories.
IV. Combine each pair of sentences to form a conditional sentence, using “if” Type 2.
1.The factory is located near our village. There is air pollution and noise pollution.
-> If the factory weren't located near our village, there wouldn't be air pollution and noise pollution.
2. The local people have to use water from the polluted river. They don’t have fresh water.
-> If the local people had fresh water, they wouldn't have to use water from the polluted river.
3. Trees and grasses cannot grow here. The soil is badly polluted.
-> If the soil weren't badly polluted, trees and grass could grow here.
4. Mr Quang works in a noisy environment. His hearing becomes worse.
-> If Mr Quang didn't work in a noisy environment, his hearing wouldn't become worse.

Give the correct form of the words given to complete the sentences.
1.The _______contaminaion_______ of lakes, rivers, oceans or underwater CONTAMINATE
water pollution.
2. The street doesn’t look_______attractive______ because it has a lot of rubbish.ATTRACT
3. The music club made so much noise that the_____residents_____ complained to REDIDE
its owner.
4. Are all types of pollution_____harmful_____ to the health of humans and animals? HARM
5. The______environmentalists_______ are concerned about the oil spills in East Sea. ENVIROMENT
6. Dumping ______industrial_____waste into the lakes and rivers has caused INDUSTRY
Serious water pollution.
7. Many people in this area have cholera because they drink ____untreated_____water. TREAT
8.Examples of primary________pollutants________are exhaust fumes from cars, POLLUTE
soot from smoke and ash from volcanic eruption.
9. If we use water______carefully______ , more people will have fresh water. CARE
10. The polluted water results in the ____death_____of many aquatic animals DIE
And plants.
III. Combine the sentences in each pair into a new sentence that shows a cause/effect relationship. Use the words in brackets.
1.Many rivers and lakes are poisoned. Factories produce waste and pour it into rivers and lakes. (because)
-> Because factories produce waste and pour it into rivers and lakes, many rivers and lakes are poisoned.
2. The environment is polluted. Birds leave their habitats and plants die. (make)
-> The pollution of the environment makes birds leave their habitats and plants die.
3. Plastic bags are a major source of waste. We should not throw plastic bags everywhere. (so).
-> Plastic bags are a major source of waste so we should not throw plastic bags everywhere.
4. The food is contaminated. People’s health is poor. (results in)
-> The contamination of the food results in people's poor health.
5. Factories release fumes. The air breathe gets polluted. (due to)
-> The air breathe gets polluted due to the release of fumes from factories.
IV. Combine each pair of sentences to form a conditional sentence, using “if” Type 2.
1.The factory is located near our village. There is air pollution and noise pollution.
-> If the factory weren't located near our village, there wouldn't be air pollution and noise pollution.
2. The local people have to use water from the polluted river. They don’t have fresh water.
-> If the local people had fresh water, they wouldn't have to use water from the polluted river.
3. Trees and grasses cannot grow here. The soil is badly polluted.
-> If the soil weren't badly polluted, trees and grass could grow here.
4. Mr Quang works in a noisy environment. His hearing becomes worse.
-> If Mr Quang didn't work in a noisy environment, his hearing wouldn't become worse.

Đáp án D

Ô nhiễm chỉ được chú ý tới ______.
A. khi sinh vật đầu tiên bị ảnh hưởng.
B. ngay sau khi sự cân bằng tự nhiên bị phá hủy.
C. khi chất độc bị đổ xuống nguồn nước.
D. khi nhiều loài cá và chim bị chết.
Dẫn chứng câu 3-5 đoạn 1: “Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die in this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening” – (Những tác động thường xuyên của ô nhiễm không được chú ý tới trong vài tháng, thậm chí là vài năm bởi sinh vật đầu tiên bị ảnh hưởng chỉ là các loài thực vật hoặc các sinh vật phù du. Nhưng đối với những sinh vật làm thức ăn cho cá, chim hoặc và loài sinh vật khác. Khi chúng biến mất thì cá, chim cũng chết theo như cách mà 1 chuỗi thức ăn bị xóa sổ, và cho đến khi xác chết chim, cá được nhìn thấy trên mặt hồ hoặc bờ biển thì con người mới nhận thức được rằng điều gì đang xảy ra).

Đáp án C

Các sinh vật sống bị chết bởi không có đủ ______ trên các sông hồ.
A. nước
B. độc tố
C. khí ô-xi
D. cá
Dẫn chứng ở câu 2- đoạn 2: “Sewage itself, if it is not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need”- (Bản thân nước thải, nếu chúng không được xử lí đúng cách thì sẽ làm cho nước bị bẩn và ngăn mọi dạng sống dưới sông, biển không nhận được đủ lượng ô-xi cần thiết).

Rivers are on of the world’s most important natural resources. Many cities are on the large rivers, and ……almost…….. every country has a least one river that …plays…….. an important part in the lives of its people. Besides transportation, river.......provide……………..water for crops, water to drink , and recreation for people who live along their ……banks…….. And in ……order…….to get water for crops, engineers sometimes build a dam…across………a river and let water become a lake behind the dam. Then people can use their water not……only…..to irrigate fields but also to make electricity for homes and industries. ……However…….the water often becomes polluted when cities on river bank grow up and the number of industries increases. We are learning that it is necessary to ……keep……rivers clean if we want to enjoy the benefits of the natural resources.

Rivers are on of the world’s most important natural resources. Many cities are on the large rivers, and……almost…….. every country has a least one river that …plays…….. an important part in the lives of its people. Besides transportation, rivers …provide……………..water for crops, water to drink , and recreation for people who live along their ……banks…….. And in ……order…….to get water for crops, engineers sometimes build a dam …across………a river and let water become a lake behind the dam. Then people can use their water not ……only………..to irrigate fields but also to make electricity for homes and industries. ……However…….the water often becomes polluted when cities on river bank grow……in……….size and the number of industries increases. We are learning that it is necessary to……keep……rivers clean if we want to enjoy the benefits of the natural resources.

Ex 4: Word form
4._____Polluted____elements have been found in both ground and underground water sources . (pollute)
5. Fish and many other animals are killed by____pollution_____in their habitats . (pollute)
6. Astronomers are concerned about light pollution because thay have___difficulty___in viewing activities in the sky and outer space. ( difficult)
7. ___Natural__habitats have been destroyed in recent years . (nature)
8. A number of cleaning products contain ____harmful___chemical. (harm)
9. Water samples collected at these villages were seriously____contaminated___with bacteria. ( contaminate)
10.People believe that the____polluted___water has brought cancer to the local resident . (pollute)
11. Light pollution makes us _____unable____to see the stars in the sky.(able)
12. Noise is considered as_____environmental_____pollution.(environment)
13. The____contamination___of lake, rivers, oceans or underwater causes water pollution .( cotaminate)
14. The street dosen't look__attractive___because it has a lot of rubbish .(attract)
15. Are all types of pollution__harmful___to the health of human and animals. (harm)
16.The__environmentalists___are concerned about the oil spills in the East Sea. (environment)
17. Dumping __industrial___ waste into the lakes and rives has caused serious water pollution. ( industry)
18. Many people in this area have cholera because they drink__untreated___water.(treat)
19. Examples of primary ____pollution___are exhaust fumes from cars, soot from smoke. (pollute)
20. If we use water__carefully__, more people will have fresh water.(care)
21. The polluted water resuilts in the____death___of many aquaticanimals and plants. (die)
22. Both French and English are ___official___languages in Canada. ( office)
23. NSW is the ___abbreviation___of New South Wales , the most populous state in Australia. (abbreviate)
24. Do you know that the telephone , the televison , and penicillin are Scottish__inventions__? (invent)

Ex 4: Word form
4.___polluted ______elements have been found in both ground and underground water sources . (pollute)
5. Fish and many other animals are killed by____pollution _____in their habitats . (pollute)
6. Astronomers are concerned about light pollution because thay have___difficulty ___in viewing activities in the sky and outer space. ( difficult)
7. __Natural ___habitats have been destroyed in recent years . (nature)
8. A number of cleaning products contain ___harmful ____chemical. (harm)
9. Water samples collected at these villages were seriously__contaminated _____with bacteria. ( contaminate)
10.People believe that the___polluted ____water has brought cancer to the local resident . (pollute)
11. Light pollution makes us _________to see the stars in the sky.(able)
12. Noise is considered as____environmental ______pollution.(environment)
13. The___contamination ____of lake, rivers, oceans or underwater causes water pollution .( cotaminate)
14. The street dosen't look__attractive ___because it has a lot of rubbish .(attract)
15. Are all types of pollution__harmful ___to the health of human and animals. (harm)
16.The_environmentalists ____are concerned about the oil spills in the East Sea. (environment)
17. Dumping __industrial ___ waste into the lakes and rives has caused serious water pollution. ( industry)
18. Many people in this area have cholera because they drink__treatment ___water.(treat)
19. Examples of primary __pollution _____are exhaust fumes from cars, soot from smoke. (pollute)
20. If we use water_carefully ___, more people will have fresh water.(care)
21. The polluted water resuilts in the___death ____of many aquaticanimals and plants. (die)
22. Both French and English are __official ____languages in Canada. ( office)
23. NSW is the __most abbreviate____of New South Wales , the most populous state in Australia. (abbreviate)
24. Do you know that the telephone , the televison , and penicillin are Scottish__invention __? (invent)

Rivers are on of the world's most important natural resources. Many cities are on the large rivers, and almost every country has a least one river that plays an important part in the lives of its people. Besides transportation, rivers provide water for crops, water to drink, and recreation for people who live along their banks And in order to get water for crops, engineers sometimes build a dam across a river and let water become a lake behind the dam. Then people can use their water not only to irrigate fields but also to make electricity for homes and industries. However the water often becomes polluted when cities on river bank grow in size and the number of industries increases. We are learning that it is necessary to keep rivers clean if we want to enjoy the benefits of the natural resources.

Rivers are on of the world's most important natural resources. Many cities are on the large rivers, and (1) in every country has a least one river that (2) plays an important part in the lives of its people. Besides transportation, rivers (3) make water for crops, water to drink, and recreation for people who live along their (4) life . And in (5) addition to get water for crops, engineers sometimes build a dam (6)near a river and let water become a lake behind the dam. Then people can use their water not (7)only to irrigate fields but also to make electricity for homes and industries. (8)However, the water often becomes polluted when cities on river bank grow (9) and the number of industries increases. We are learning that it is necessary to (10)make rivers clean if we want to enjoy the benefits of the natural resources.

Rivers are one of the world's most important natural resources. Many cities are on the large rivers, and (1).............almost..................... every country has a least one river that (2)................plays................... an important part in the lives of its people. Besides transportation, rivers (3)....................provides................... water for crops, water to drink, and recreation for people who live along their (4)................banks......................... And in (5).............order................... to get water for crops, engineers sometimes build a dam (6).............behind....................... a river and let water become a lake behind the dam. Then people can use their water not (7)..................only.................. to irrigate fields but also to make electricity for homes and industries. (8).....................However,.................. the water often becomes polluted when cities on river bank grow (9)......................faster................. and the number of industries increases. We are learning that it is necessary to (10)...................keep..................... rivers clean if we want to enjoy the benefits of the natural resources.

Đáp án A

waterproof (adj): không thấm nước
= not allowing water to go through: không cho nước đi qua.
Các đáp án còn lại:
B. bao phủ bởi nước.
C. chứa đầy nước.
D. được làm sạch bằng nước.

Đáp án A

Theo như đoạn văn, cách để ngăn chặn ô nhiễm nguồn nước là ______.
A. làm cho các chất thải trở nên vô hại.
B. nhận thức rõ ràng tầm nghiêm trọng.
C. dành 1 chỗ đặc biệt trên biển cho rác thải.
D. sục khí ô-xi vào các dòng sông.
Dẫn chứng ở câu thức 2 từ dưới lên: “if we want to stop this pollution, the answer is simple, sewage and industrial waste must be made clean before flowing into the water” – ( Nếu chúng ta muốn dừng việc ô nhiễm này lại, câu trả lời rất đơn giản, nước thải và chất thải công nghiệp phải được làm sạch trước khi chảy vào nguồn nước).