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8 tháng 6 2017

Use the correct form of the word given in each sentence .

1, We are worried that rivers and canals are becoming more and more ___polluted____. [pollute]

2. TV ___commercials___ are advertisements in which goods and services are promoted. [commerce]

3. It is ___disappointing___ that some people poach fish in the NhieuLocCanal[disappoint]

4. Christmas is ___enjoyably___ celebrated in many countries. [joy]

5. Here is tommorrow’s weather __forecast____. Ho Chi Minh citywill be sunny, and …. [cast]

6. My sister is wearing a T-shirt of the latest model. She always dresses __fashionably___. [fashion]

Use the correct tense or form of the verb given in each sentences.

1. Unless she __waters___ the flowers regularly, they will wither. [water]

2. We all expect that Anh Vien __will become__ the most outstanding athlete in this SEA GAMES. [become]

3. He __has read___ five comic books since last Monday. [read]

4. The teacher suggested __revising__ these units carefully. [revise]

8 tháng 6 2017

Use the correct form of the word given in each sentence .

1, We are worried that rivers and canals are becoming more and more ___POLLUTED____. [pollute]

2. TV ____COMMERCIALS__ are advertisements in which goods and services are promoted. [commerce]

3. It is ___DISAPPOINTING___ that some people poach fish in the NhieuLocCanal[disappoint]

4. Christmas is __JOYFULLY____ celebrated in many countries. [joy]

5. Here is tommorrow’s weather __FORCAST____. Ho Chi Minh citywill be sunny, and …. [cast]

6. My sister is wearing a T-shirt of the latest model. She always dresses ___FASHIONABLY__. [fashion]

Use the correct tense or form of the verb given in each sentences.

1. Unless she __WATERS___ the flowers regularly, they will wither. [water]

2. We all expect that Anh Vien _WILL BECOME___ the most outstanding athlete in this SEA GAMES. [become]

3. He ___HAS READ__ five comic books since last Monday. [read]

4. The teacher suggested __REVISING__ these units carefully. [revise]

20 tháng 5 2019

He was punished because he behaved badly

->because of_his bad behaviour, he was punished____________________

The keeper had no sooner opened the case door than the lion attacked hi

->Hardly had the keeper opened the cage door when the tiger attacked him.___________

We are worried that rivers and canals are becoming more and more ..polluted......pollute

TV .commercials....are adversements in which goods and services are promoted. commerce

it is...disappointing.....that some people poach fish in the nhieu loc canal disappoint

christmas is.....enjoyable.......celebrated in many countries joy

here is tommorrow's weather.....forecast.....HCM city will be sunny,and ...... cast

my sister is wearing a T-shirt of the latest madel.She always dresses...fashionably..... fashion

Choose the word which best fits each gapTexting is a new way of (30) _______ information, and it is becoming more and more popular among the young. In fact, texting is clearly affecting language. There are no rules for it. We are creating a new aspect of vocabulary and (31) _______ up a new kind of playful and direct communication. Naturally, texting is fun and that’s fine, but some people are worried about the effects it might have on a child’s ability (32) ________ and write. But not everyone...
Đọc tiếp

Choose the word which best fits each gap

Texting is a new way of (30) _______ information, and it is becoming more and more popular among the young. In fact, texting is clearly affecting language. There are no rules for it. We are creating a new aspect of vocabulary and (31) _______ up a new kind of playful and direct communication. Naturally, texting is fun and that’s fine, but some people are worried about the effects it might have on a child’s ability (32) ________ and write. But not everyone is so worried. An expert says, “Every time a new medium comes along it has an effect (33) ________ language … But this doesn’t destroy the existing language, it adds to it.” In text messages, many words come from shorthand created in email, such as CUS (See you soon) and so on. Someone says, “Mostly they are original, but sometimes you get a clash of meanings. (34) ________, LOL can mean both Laugh Out Loud and Lots of Love. That could lead to some misunderstandings.”

30. A. exchange                      B. exchanging                         C. change                    D. changing

31. A. broaden                                    B. broadening                         C. opening                   D. extend

32. A. to read                          B. read                                                C. reading                   D. have read

33. A. on                                 B. in                                        C. of                            D. to

 

34. A. Besides                         B. Moreover                            C. For example,           D. However

1
14 tháng 5 2021

1 B

2 C

3 A

4 A

5 C

IX, Fill a suitable word in each sentence  Nowadays, more and more people are changing the way they use their televisions. Some years ago we (71) ……… to turn on TV and watch whatever there was. But now we choose the programs we watch (72) …………. more carefully because we have many (73) ……… interesting things to do. One result of this change is that we are also becoming (74) ………. careful about the actual television ste itself. As we watch fewer programs, we want to be sure that we will (75) ……… a...
Đọc tiếp

IX, Fill a suitable word in each sentence

 Nowadays, more and more people are changing the way they use their televisions. Some years ago we (71) ……… to turn on TV and watch whatever there was. But now we choose the programs we watch (72) …………. more carefully because we have many (73) ……… interesting things to do. One result of this change is that we are also becoming (74) ………. careful about the actual television ste itself. As we watch fewer programs, we want to be sure that we will (75) ……… a really good picture, with bright color and sound. Because it will be switched off (76) ……… of the time, we also want the television to look good when we aren’t watching it. So when we (77) ……. or rent we look at the outside to make sure it is  attractive and will look right (78) ………. other furniture. Of course, we have to pay more (79) ……… high quality.    However, it seems that the number of people (80) …………….. are content to do so is increasing, and this should have a good result, because in the end all televisions will have better quality.

1
20 tháng 6 2021

1 used

2 much

3 other

4 more

5 have

6 most

7 buy

8 with

9 for

10 who

31 tháng 1 2021

IV. Use the correct form of the word given to complete each sentence.

1. Add sugar, water and flour to the beaten eggs and stir the.....mixture.....well.(mix)

2. Bowls, vases, jars, and glasses are sold in the.....glassware.......store at the corner.(glass)

3. Dead leaves fall to the ground and.....decomposed..... weather.(compose)

4. Miss White is a.....representative.....from "Friend of the Earth".(represent)

5. We can make the soil richer by adding.....fertility..... (fertile)

6. The teacher gave the children a detailed.....explanation........to the recycling plan. (explain)

7. The children enjoy playing.....wooden......toys. (wood)

8. There is some......reduction.......in pollution.(reduce)

IV. Use the correct form of the word given in each sentence.  1. I like ___________________ at home, in my bedroom. (read)2.They have a lot of _________________ in the summer. (act)3.Nga and Nam are  ___________________students .( well)4. Simon   is   very _______________   when   his   friends   have   problems   with   their   homework.(help)5. Today is a _______________ day. We can play badminton in the garden. ( love )6.Lan_______________goes shopping with her mother (usual)7. Janina and...
Đọc tiếp

IV. Use the correct form of the word given in each sentence. 

1. I like ___________________ at home, in my bedroom. (read)

2.They have a lot of _________________ in the summer. (act)

3.Nga and Nam are  ___________________students .( well)

4. Simon   is   very _______________   when   his   friends   have   problems   with   their   homework.(help)
5. Today is a _______________ day. We can play badminton in the garden. ( love )

6.Lan_______________goes shopping with her mother (usual)

7. Janina and Kim can’t go shopping now because it’s ______________ hard. (rain)

8. BacGiang has a lot of ______________ places. ( beauty )                                  

9. My dad usually ______________the shopping at the weekend. (do)

10. He greets me in a ______________ way.  (friend)                               

11.She ______________us English at school. (teacher)                   

12. I like ______________  at home, in my bedroom. (read)  

giúp em bài này với các anh chị ơi 

3
14 tháng 1 2022

1.reading

2.activities

3.good

4.helpful

5.lovely

6.usually

7.raining

8.beautiful

9.does

10.friendly

11.teaches

12.reading

14 tháng 1 2022

1, reading

2, activities

3, good

4, helpful

5, lovely

6, usually

7, raining

8, beautiful

9, does

10, friendly

11, teaches

12, reading

Give the correct form of the words given to complete the sentences. 1.The ______________ of lakes, rivers, oceans or underwater CONTAMINATE water pollution. 2. The street doesn’t look_____________ because it has a lot of rubbish.ATTRACT 3. The music club made so much noise that the__________ complained to REDIDE its owner. 4. Are all types of pollution__________ to the health of humans and animals? HARM 5. The_____________ are concerned about the oil spills in East Sea. ENVIROMENT 6. Dumping...
Đọc tiếp

Give the correct form of the words given to complete the sentences.
1.The ______________ of lakes, rivers, oceans or underwater CONTAMINATE
water pollution.
2. The street doesn’t look_____________ because it has a lot of rubbish.ATTRACT
3. The music club made so much noise that the__________ complained to REDIDE
its owner.
4. Are all types of pollution__________ to the health of humans and animals? HARM
5. The_____________ are concerned about the oil spills in East Sea. ENVIROMENT
6. Dumping ___________waste into the lakes and rivers has caused INDUSTRY
Serious water pollution.
7. Many people in this area have cholera because they drink _________water. TREAT
8.Examples of primary________________are exhaust fumes from cars, POLLUTE
soot from smoke and ash from volcanic eruption.
9. If we use water____________ , more people will have fresh water. CARE
10. The polluted water results in the _________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)
___________________________________________________________________
2. The environment is polluted. Birds leave their habitats and plants die. (make)
___________________________________________________________________
3. Plastic bags are a major source of waste. We should not throw plastic bags everywhere. (so).
___________________________________________________________________
4. The food is contaminated. People’s health is poor. (results in)
___________________________________________________________________
5. Factories release fumes. The air breathe gets polluted. (due to)
___________________________________________________________________
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.
___________________________________________________________________
2. The local people have to use water from the polluted river. They don’t have fresh water.
___________________________________________________________________
3. Trees and grasses cannot grow here. The soil is badly polluted.
___________________________________________________________________
4. Mr Quang works in a noisy environment. His hearing becomes worse.
___________________________________________________________________

5
31 tháng 12 2017

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.

30 tháng 12 2017

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 ______________ of lakes, rivers, oceans or underwater CONTAMINATE water pollution. 2. The street doesn’t look_____________ because it has a lot of rubbish.ATTRACT 3. The music club made so much noise that the__________ complained to REDIDE its owner. 4. Are all types of pollution__________ to the health of humans and animals? HARM 5. The_____________ are concerned about the oil spills in East Sea. ENVIROMENT 6. Dumping...
Đọc tiếp

Give the correct form of the words given to complete the sentences.
1.The ______________ of lakes, rivers, oceans or underwater CONTAMINATE
water pollution.
2. The street doesn’t look_____________ because it has a lot of rubbish.ATTRACT
3. The music club made so much noise that the__________ complained to REDIDE
its owner.
4. Are all types of pollution__________ to the health of humans and animals? HARM
5. The_____________ are concerned about the oil spills in East Sea. ENVIROMENT
6. Dumping ___________waste into the lakes and rivers has caused INDUSTRY
Serious water pollution.
7. Many people in this area have cholera because they drink _________water. TREAT
8.Examples of primary________________are exhaust fumes from cars, POLLUTE
soot from smoke and ash from volcanic eruption.
9. If we use water____________ , more people will have fresh water. CARE
10. The polluted water results in the _________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)
___________________________________________________________________
2. The environment is polluted. Birds leave their habitats and plants die. (make)
___________________________________________________________________
3. Plastic bags are a major source of waste. We should not throw plastic bags everywhere. (so).
___________________________________________________________________
4. The food is contaminated. People’s health is poor. (results in)
___________________________________________________________________
5. Factories release fumes. The air breathe gets polluted. (due to)
___________________________________________________________________
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.
___________________________________________________________________
2. The local people have to use water from the polluted river. They don’t have fresh water.
___________________________________________________________________
3. Trees and grasses cannot grow here. The soil is badly polluted.
___________________________________________________________________
4. Mr Quang works in a noisy environment. His hearing becomes worse.
___________________________________________________________________

3
3 tháng 1 2018

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.

3 tháng 1 2018

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.

26 tháng 4 2020

11. He drives so _carefully_____that he has never had any accidents. (CARE).

12. He is probably the most __ successful ____ tennis player of all time. (SUCCEED)

13. The baby laughed __happily_____ as she played with her toys. (HAPPY)

14. There are some _differences____ between British English and American English. (DIFFER)

15. We are worried that rivers and cannals are becoming more and more _polluted_____. (POLLUTE)

26 tháng 4 2020

II. Chọn một từ đúng trong ngoặc để hoàn thành mỗi sau.
11. He drives so __carefully____that he has never had any accidents. (CARE))
12. He is probably the most __succeedful____ tennis player of all time. (SUCCEED)
13. The baby laughed ____happily___ as she played with her toys. (HAPPY)
14. There are some ___difference___ between British English and American English. (DIFFER)
15. We are worried that rivers and cannals are becoming more and more ___polluted___. (POLLUTE)

I. Fill in the blank with the correct form of the word 1. What is the correct .............. of this word (pronounce) 2. Last week we have an ........... summer holiday ( enjoy) 3. The ............ of the project made me tense ( important) 4. You had better do some........... for the final exam ( revise) 5. ....................., her illness was more serious than we thought ( fortunate) II. Fill in each gap with a suitable word to complete th following passage Rivers are one of the...
Đọc tiếp

I. Fill in the blank with the correct form of the word

1. What is the correct .............. of this word (pronounce)

2. Last week we have an ........... summer holiday ( enjoy)

3. The ............ of the project made me tense ( important)

4. You had better do some........... for the final exam ( revise)

5. ....................., her illness was more serious than we thought ( fortunate)

II. Fill in each gap with a suitable word to complete th following passage

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

1
17 tháng 11 2017

I. Fill in the blank with the correct form of the word

1. What is the correct pronunciation of this word (pronounce)

2. Last week we have an enjoyable summer holiday ( enjoy)

3. The importance​ of the project made me tense ( important)

4. You had better do some revision for the final exam ( revise)

5. Unfortunately, her illness was more serious than we thought ( fortunate)

II. Fill in each gap with a suitable word to complete th following passage

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 . Beside transportation, rivers (3) provide water for crops, water to drink , and re creation for people who live along their (4) banks And in (5) order to get water for crops , engineers sometimes build a dam (6)across a river and let water become a lake behind the dam . Then people can use their water not (7) Only irrigate fields but also to make eletricity for homes and industries. (8) However the water often becomes polluted when cities river bank grow (9) in size 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.