VI . 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 . ELECTRICITY

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

4. Solar power can be used to ............ or cool our house . 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

Choose the best answer to complete the sentences.

1.If there________ no gravity, you do not weigh anything (be/is/were/was)

2.If you________ a report, you'll have to prepare it carefully.(do/did/will do/would do)

3.If Hoa_________ home, she'll tell her parents about her result.(call/ calls/calling/will call)

4.If the local authorities ___________ littering, the environment will become bad. (don't prevent/not prevent/will not prevent/ didn't prevent)

5.If I___________ an astronaut, I would observe the Earth from the moon. (be/is/were/was)

6.I__________ to Lan's birthday party if she invites me. (go/will go/ went/gone)

7.If solar energy is used widely in the future, the environment ____________ .(will be protected/ will be protect/would be protected/would be protect)

8.If the teacher_________ us some homework, we have to stay home and do it. (gives/give/ will give/gave)

9.Their parents would be happy if they ________ the final exam. (passed/pass/will passed/would pass)

10.Please let me know if the teacher___________ .(will come/comes/coming/come)

11. If you______ to pass the exam, you should try harder. (wanted/want/will want/wants)

12.If I had time, I __________ the poor children with studying. (helped/help/will help/would help)

13.If I saw a UFO, I _____________ surprised. (not be/would not be/were not/ won't be)

14. If people destroy the rainforest, rare animals ____________. (would be killed/will kill/ will be killed/ would kill)

15.They will pass the final exam if they _________ hard. (will study/ studied/study/would study)

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.

Give the correct form of the word given to complete the sentences.

1. Tidal energy is renewable, _______________and clean. (plenty)

2. Wind will be used as an _______________friendly sources of energy. (environment)

3. There are many ways will be used to solve the problem of _____________. (pollute)

4. Solar power can be used to ______________or cool our houses. (hot)

5. __________________, fossil fuels are harmful to the environment. (fortunate)

6. We should use them______________ and try to find out alternative sources of power. (economy)

7. Solar energy is_________________, plentiful and clean. (renew)

8. I think that solar energy can be an________________ source of energy in the near future. (alter)

9. We should reduce the use of________________ at home. (electrical)

10. It’s a clean source of energy. Sailboats couldn’t move without this____________. (powerful)

Give the correct form of the verbs in brackets. 1. Solar energy is used to (heat) water. 2. A lot of people would be out of work if that factory (close down). 3. Alaska, a state in the USA, (face) both the Arctic Ocean and the Pacific Ocean. 4. I (have) my Vietnamese class at 2.30 p.m. this Sunday afternoon. 5. Who you (talk) on the phone when I came to meet you yesterday? 6. She intends (participate) in the program called "The survivor” to experience the life in an isolated island. 7. It seems that many houses (damage), and thousands of people were homeless. 8. The number of people rescued in the disaster (be) 5.000. 9. I learnt from the news on TV that the earthquake (destroy) hundreds of houses. 10. For the past few years, many parents (send) their children to the English centres to study English with native teachers.

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!!!

1. it's possible to ..................solar energy for a number of dáy

2. solar energy doesn't cause...........................

3. if we go on ........................, ourr environment will become seriously polluted

4. a............................. is a person who works to protect the environment from damage or destruction

5. if we keep our environment clean , we will live a happier and................ life

6. my friend .................taking showwer because we can save water

7. solar energy can be used on ................ dáy

8. energy ..................................bulbs should be used to save electricity

9. if there is too much....................fume in the air, many people will cope with respiratory problems

10. i'm pleased .................... you are working hard

11. what about............................. used paper, bottles,and cán everday?it's not difficult

12. a ................ is a person who pút in and repairs, water pipes,baths,sinks