1. Scientists are looking forward to the alternative energy sources

2. I suggest not turning the lights on when the room is light enough

3. It is necessary to use energy-saving bulbs instead of ordinary bulbs

4. You should reduce the amount of electricity your family uses

5. If we go on wasting water, there will be a shortage of fresh water

6. Energy-saving bulbs should be used to save electricity

7. The solar energy that gets to the Earth can't provide enough power for the world's population

8. I think we should turn off all the lights and fans before leaving the classroom

9. How about taking a shower instead of a bath to save water ?

10. If we go on littering, the environment will become seriously polluted

1. My home hasn't installed a solar water heater. If/ my home/ install/ a solar water heater/ we/ save a lot of energy.

➞ If my home installed a solar water heater , we would save a lot of energy.

2. Not all households in Viet Nam turn off lights during the Earth Hour. If/ all households/ Viet Nam/ turn off lights/ the Earth Hour/ we/ save enough electricity/ develop our rural areas.

➞ If all households in Viet Nam turned off lights during the Earth Hour, we we would enough electricity to develop our rural areas.

1. If my home installs a solar water heater, we will save a lot of energy

2. If all households in Viet Nam turned off lights at the Earth Hour, we could save enough electricity to develop our rural areas

Complete the sentences. Use the right tense form of the phrasal verbs: go off (1); go off (2); turn off; turn on; set off; cut off; come off; get off; see off; take off.

1) You can take off your jacket if you like.

2) We forgot to pay the bill and our electricity was cut off

3) Monica didn't want to get off the bus because it was raining.

4) Turn on the machine and give it time to heat up.

5) You don't need to come to the station to see me off . I'll be fine on my own.

6) You must drink it up until two weeks or it will go off .

7) Oh bother! One of my button has come off

8) I set the alarm for 7 a.m before going to bed last night, but this morning it didn't go off

9) Remember to turn off the lights before leaving for work.

10) We decided to set off early the next day to avoid the rush hour traffic.

1. Rewirte these sentences.
1) They began watching the movie one hour ago
=They have watched the movie for one hour
2)We tried our best but we didn't win the game
=Although we we tried our best , we didn't win the game
3) I am tried. I can't go to school today
=Because I am tried , I can't go to school today
4) She doesn't want you to go out alone at night.
=She say to you: " I don't want to go out alone at night "

2. Use the suggested words to write complete sentences.
1) We/ can/ not/ speak / English / when/ five/ years/ old.
We can not speak English when we were five years old.
2) Please/ turn/ the light/ when/ not/ use/.
Please turn off the light when you don't use.

1. Rewirte these sentences.

1.=>They have watched the movie for one hour

2.=>Although we we tried our best , we didn't win the game

3.=>Because I am tried , I can't go to school today

4.=>She say to you: " I don't want to go out alone at night "

2. Use the suggested words to write complete sentences.

1.=>We can not speak English when we were five years old.

2.=>Please turn off the light when you don't use.

1 flow

2 helping

3 to stay

4 visited

5 took

6 bought

7 am going to have

8 playing

9 speak

10 left

VII . Fill in the blank in the following passage with ONE suitable word from the box :

students ; bulbs ; coal ; off ; rural ; electricity ; natural ; energy ; save ; wastes .

With the development of science and technology , more and more (1)...energy...... is used every day . Nowadays , many (2)......rural....... areas in Vietnam have been electrified , and more (3)....... electricity....... is needed . If everyone (4) ......wastes........ energy , it will quickly run out , (5).....students ....... at school should learn how to (6).... save..... energy , for example , they should turn (7)......off......... the electric lights when they leave their classrooms .

Moreover , we may waste electricity at home if we use a lot of light (8)..... bulbs......... By not wasting energy , we will save a lot of (9) ......natural........... resources , such as (10)....coal...... and oil .

(1) energy

(2) rural

(3) electricity

(4) wastes

(5) students

(6) save

(7) off

(8) bulbs

(9) natural

(10) coal

1.Good evening lady and gentlement . My name is Ha I’m going to tell how to reduce and save energy.

2.Everyhousehold use too much electrcity. You should reduce these amount by.

3.Turnning off lights begore going out.

4.Preparing food carefully before turning on stove.

5. Keeping refrigeerator door closed.

6.Not turning on many lights at the same time.

7.Replacing ordinary 10 watt light bulbs with energy savign bulbs.

8.If you follow thses simple rules not only wil you save money and natural resources but also the hosue hould applicians will last many times longer.

Cho dạng đúng của động từ trong ngoặc:

1. Be quite! I (watch) am watching this film!

2. Don't forget (turn) to turn off the lights before going out.

3. You should (spend) spend less time (play) playing video games.

4. Children always like (listen) listening to stories.

5. Hoa rarely (go)goes to the movie or (eat) eats out in the evening.

6. Tina (stay) is going to stay home and watch TV tonight.

7. I get up at 5.30 every day so I'm used to (get) getting up early.

8. Hoa (not go) didn't go on a picnic last weekend because she (catch) caught a bad cold.

Cho dạng đúng của động từ trong ngoặc:

1. Be quite! I am watching this film!

2. Don't forget to turn off the lights before going out.

3. You should spend less time playing video games.

4. Children always like listening to stories.

5. Hoa rarely goes to the movie or eats out in the evening.

6. Tina is staying home and watch TV tonight.

7. I get up at 5.30 every day so I'm used to getting up early.

8. Hoa didn't on a picnic last weekend because she caught a bad cold.

1. am watching

2. to turn

3. spend – playing

4. listening / to listen

5. goes – eats

6. is going to stay / will stay

7. getting

8. didn't go – caught

1/ Because of having a lot of difficulties, she managed to sell the house.

-> Because _______ she had a lot of difficulties, she managed to sell the house. ________________________

2/ I stay at home because it is raining

-> Since____it is raining, I stay at home._______________________________

3/ She was tired therefore, she wanted to go home

-> Because of _________her tiredness, she want to go home.________________

4/ He often uses plastic bags to wrap food

-> He is ______used to using plastic bags to wrap food._____________________

5/ She always turns off the lights when going to bed.

-> She is ________used to turning off the lights when sho go to bed______________________

6/They don’t use electricity to catch fish

-> Electricity ______isn't used to catch fish__________________