1. It's from the gas fields below the North sea.

2. It will run out during the 21st century unless new supplies are found.

3. Yes.

4. Coal gas.

* Read the passage, then answer the questions.
In Britain, natural gas is the most popular fuel for heating homes and cooking. It is piped all over the country from the gas fields below the North Sea. Natural gas is used chiefly as a direct source of energy, although it is also used in the chemical industry. At the moment the supply is plentiful, but it will be running short by the end of the century and will run out during the 21 st century unless new supplies are found. We could do without natural gas, as coal gas can be used as a substitute, and there should be enough coal to last for several centuries. However, it is a form of energy that is not only cheap but also highly efficient.
1. What is natural gas used for?
Natural gas is used for heating homes and cooking.
2. Where does it come from?
it comes from all over the country from the gas fields below the North sea.
3. What is natural gas used chiefly as?
Natural gas is used chiefly as a direct source of energy, although it is also used in the chemical industry.
4. Is the supply plentiful now?
Yes, it is.
5. What will happen if we can’t find new supplies?
If we can't find new supplies natural gas will run out.
6. When will it run out?
It will run out during the 21stcentury.
7. What can be used as a substitute for natural gas?
coal gas can be used as a substitute for natural gas.
8. How long should there be enough coal to last?
There should be enough coal to last for several centuries.
9. Is natural gas expensive?
It is cheap.
10. Is it efficient?
Yes, it is.

In Britain, natural gas is the most popular fuel for heating homes, and for cooking. It is piped all over the country from the gas fields below the North sea. Natural gas is used chiefly as a direct source of energy, although it is also used in the chemical industry. At the moment, the supply is plentiful, but it will be running short by the end of the century, and it will run out during the 21stcentury unless new supplies are found. We could do without natural gas, as coal gas can be used as a substitute, and there should be enough coal to last for several centuries. However, it is a form of energy which is not only cheap, but also highly efficient.

1. What is natural gas used for?

à__________________________For heating homes, and for cooking. ________________________________________

2. Where does it come from?

à_______________________it comes from all over the country from the gas fields below the North sea.___________________________________________

3. What is gas used chiefly as? When will it run out?

à__________________Natural gas is used chiefly as a direct source of energy. It will run out during the 21stcentury________________________________________________

4. What can be used as a substitute for natural gas?

à____________________ coal gas can be used as a substitute for natural gas______________________________________________

5. Is natural gas expensive or cheap?

à________________It is cheap__________________________________________________

1. Shall we use gas instead of burning coal?

I suggest.WE SHOULD use gas instead of burning coal...

2. My family has someone water the roses every day.

My family has the....roses watered every day....

3. Tom failed the exam because of his laziness.

Because Tom......was lazy, he failed the exam...

4. She planted that tree five years ago.

that tree....was planted five years ago......

5. People have used the Internet all over the world.

The Internet ..........has been used all over the world......

6. I hope to see you at Christmas.

i'm.......looking forward to seeing you at Christmas....

7. He's going to have his room redecorated with some new furniture.

He's going to ask.....some new furniture for his room ........

8. I think it is the better to wait for the next bus

l suggest.......waiting for the next bus...

1. Shall we use gas instead of burning coal?

I suggest.... using gas instead of burning coal

2. My family has someone water the roses every day.

My family has the............roses watered every day.........

3. Tom failed the exam because of his laziness.

Because Tom.......was lazy, he failed the exam...........

4. She planted that tree five years ago.

that tree......has been planted for .five years..........

5. People have used the Internet all over the world.

The Internet ............has been used all over the world............

6. I hope to see you at Christmas.

i'm........looking forward to seeing you at Christmas.........

7. He's going to have his room redecorated with some new furniture.

He's going to ask..........somebody for redecorating his room with some new furniture..............

8. I think it is the better to wait for the next bus

l suggest..........waitting for the next bus..............

Rewrite the sentence so that the meaning doesn't change

1. Shall we use gas instead of burning coal?

I suggest..using gas instead of burning coal..

2. My family has someone water the roses every day.

My family has the....roses watered every day.............

3. Tom failed the exam because of his laziness.

Because Tom......was laxy,he failed the exam............

4. She planted that tree five years ago.

that tree.....was planted five years ago. ............

5. People have used the Internet all over the world.

The Internet ......has been used all over the world...................

6. I hope to see you at Christmas

i'm.........going to see you at Christmas. ........

7. He's going to have his room redecorated with some new furniture.

He's going to ask.....to redecorate his room with some new furniture..

8. I think it is the better to wait for the next bus

l suggest.....waiting for the next bus............

1. When the bus was arriving , we missed it because we were talking .
=> was arriving => arrived
2. You don't have to press this button because it is very dangerous
=> don't have to => mustn't
3 . During the Christmas holiday,she was eating too much and watching TV too much 
=> Was eating => ate ; watching => watched 
4. The dragon flew over the tower when he heard the princess cry for help
=> flew => was flying

1. When the bus was arriving , we missed it because we were talking .
=> was arriving => arrived
2. You don't have to press this button because it is very dangerous
=> don't have to => mustn't
3 . During the Christmas holiday , she was eating too much and watching TV too much .
=> bỏ too much
4. The dragon flew over the tower when he heard the princess cry for help
=> flew => was flying

bạn làm sai câu 3 rồi nhé

1. She is interested in going swimming.

2. The Internet has been used all over the world.

3.Your sister travels to work by bus every morning, doesn't she?

4. He wishes he hadn't tell her the truth.

5.It hasn't rained for a fortnight.

6. If  we had miney, we would have bought the house.

7. She has a beautiful that everyone admires it.

8." Please wake me at 8 o'clock tomorrow morning." I asked the hotel porter.

9. It was such hard cake that he couln't eat .

10. The police allow people to enter the bank.

1:she enjoy going swimming 

she is interested in going swimming

2:people have used the internet all over the world

the internet has been used all over the world.

3:does your sister travel to work by bus everymorning?

your sister travels to work by bus every morning, doesn't she?

4:he regrets telling her the truth

he wishes he hadn't told her the truth.

5:the last time it rained  was a fornight ago

it hasn't rained for a fornight.

6:we don't buy the house because we don't have enough money

if we had enough money, we would buy the house.

7 her voice is so beautiful that everyone admires it 

she has a beautiful voice that everyone admires it.

Rewrite the sentences without change their meanings.

1.Ann drives very dangerously.

=>Ann is a dangerous driver.

2.It is not necessary for you to finish all your work today.

=>You don't have to finish all work today.

3.How much are these rackets?

=>How much do these rackets coats?

4.What's the matter with your car?

=>What was wrong with your car ?

5.My mother can cook very well.

=>My mother is a good cook.

6.We should get up early everyday.

=>He advised us to get up early everyday.

V.Choose the correct preposition in brackets to complete thể sentences

1.Our future houses might be...... the ground.(at/under/to)

2.He wishes that he will have a villa....the sea.(by/of/above)

3.This car runs..... electricity,so we don't use gas(for/with/on)

4.He doesn't want to live....the city when he grows up(of/in/to)

5.I cần order food from a restaurant while I'm...home(on/in/at)

6.Will robots help us....the house hold chores?(on/for/with)

7.I think all my dreams will come true....the future (in/to/of)

8.Do you think there is life....other planets (above/on/at)

V.Choose the correct preposition in brackets to complete thể sentences

1.Our future houses might be...... the ground.(at/under/to)

2.He wishes that he will have a villa....the sea.(by/of/above)

3.This car runs..... electricity,so we don't use gas(for/with/on)

4.He doesn't want to live....the city when he grows up(of/in/to)

5.I cần order food from a restaurant while I'm...home(on/in/at)

6.Will robots help us....the house hold chores?(on/for/with)

7.I think all my dreams will come true....the future (in/to/of)

8.Do you think there is life....other planets (above/on/at)

V.Choose the correct preposition in brackets to complete thể sentences

1.Our future houses might be...... the ground.(at/under/to)

2.He wishes that he will have a villa....the sea.(by/of/above)

3.This car runs..... electricity,so we don't use gas(for/with/on)

4.He doesn't want to live....the city when he grows up(of/in/to)

5.I cần order food from a restaurant while I'm...home(on/in/at)

6.Will robots help us....the house hold chores?(on/for/with)

7.I think all my dreams will come true....the future (in/to/of)

8.Do you think there is life....other planets (above/on/at)

1. You may need to buy a ticket for your child.

2. All new soldiers need to have a medical examination.

3. Foreigners needn't to register for...

1 Perhaps you will have to purchase a ticket for your child.

2 It is necessary for all new soldiers to undergo a medical examination.

3 There is no requirement for foreigners to register for military service.

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