I. Give the correct form of the words in brackets.

1. Solar domestic heating systems are (economy) ___________ to use

2. We should use solar energy. it is cheap, clean and (limit) ________________

3. If you don't pay your (electric) _________ bill soon, you will be cut off

4. In the future, many building will be (hot) _____________ by solar energy

5. His office is on the (twelve) ___________ floor of this building

6. Televisionj is one of the cheapest forms of (entertain) ____________

7. I get used to (get) __________ up early and having a bath

8. She is a 15 (year) __________ school girl

9. I am going to some French - (speak) ___________ countries

10. This (mix) _____________ consists of oxigen and hidrogen

I. Give the correct from of the word given to complete the sentence.

-Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be an ............. source of energy in the near future (alter) -It's a clean source of energy . Sailboats couldn't move without this ............. (powerful) -Limit car trips by relying on biking , walking public ............. (transport) -Energy is used to ............ a lot electrical thing (product ) -I don't think so . The solar penels are becoming ............ and easy to install (cheap)

Help!!!

II. Give the correct form of the words given to complete the sentences:

1. Solar energy is renewable, ...............................and clean.                                     PLENTY

2. We should reduce the use of..............................at home.                                       ELECTRIC

3. Waves will be used as an...............................friendly sources of energy.              ENVIRONMENT

4. Solar power can be used to .................................or cool our houses.                    HOT

5. There will be a..................................of energy in the near future.                         SHORT

6. Scientists are looking for clean and ..........................sources of energy.               EFFECT

7. More renewable energy sources will be used to solve the problem of ..........        POLLUTE

8. ................................., fossil fuels are harmful to the environment.                        FORTUNATE

9. The...........................of wind turbines will be completed by next Friday.              INSTALL

10. ...........................particles reach the Earth in just 8 minutes.                                ENERGY

I. Give the correct from of the word given to complete the sentence.

I. Give the correct from of the word given to complete the sentence.

. Read the text then answer the questions below: (2p)

Most of our electricity comes from the use of coal, oil, water power and nuclear power. We are looking for a cheap and clean source of power. Solar energy can be cheap and clean because it is available and it doesn’t cause pollution. One percent of the solar power that reaches the earth is enough to provide power for the total population. It is possible to store energy for a number of days, so solar energy can be used on cloudy days. Many countries in the world are beginning to use solar energy. By this way, we can save natural resources.

Answer the questions:

1. Where does most of our electricity come from?

________________________________________________________________.

2. Why do we think solar energy is clean?

_________________________________________________________________.

3. Why is it possible to use solar energy on cloudy days?

________________________________________________________________.

4. According to the passage, how can we save natural resources?

_________________________________________

V. Cho dạng đúng của các từ trong ngoặc

1. Solar domestic heating systems are (economy) ........... to use

2. We should use solar energy. It is cheap, clean and (limit) .............

3. If you don't pay your (electric).......... bill soon, you will be cut off

4. In the future, many buildings will be (hot).......... by solar energy

5. His office is on the (twelve) ............ floor of this buildings

6. Television is one of the cheapest forms of (entertain) ...........

7. I get used to (get)........... up early and having a bath

8. She is a 15 (year) .............. school girl

9. I am going to some French - (speak)............ countries

10. This (mix) ................consists of oxygen and hydrogen

I. Give the correct from of the word given to complete the sentence.

-Tidal energy is renewable ............ and clean (plenty) -Wind will be used as an ............... friendly sources of energy . (environment) -There are many ways will be used to solve the problem of .......... (pollute) -.............. , fossil fuels are harmful to the environment (fortunate) -We should use them .............. and try to find out alternative sources of power . (economy) -I think that solar energy can be an ............. source of energy in the near future (alter) -It's a clean source of energy . Sailboats couldn't move without this ............. (powerful) -Limit car trips by relying on biking , walking public ............. (transport) -Energy is used to ............ a lot electrical thing (product ) -I don't think so . The solar penels are becoming ............ and easy to install (cheap)

Giúp với!!!