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

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

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

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

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

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

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

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

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

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

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

1. the company has over 300 stores .........nationwide.............. ( nation)

1. The Internet is a wonderful ____invention________ of modern life. (invent)

2. It is _____disappointing______ that our environment is more and more polluted. (disappoint)

3. The price of _______electricity_____________ has gone up again. (electric)

4. _____luckily______, the typhoon didn’t cause any damage to the village. (lucky)

5. There have been many reports on the ________appearance____________ of UFOs. (appear)

1. The Internet is a wonderful ______invention______ of modern life. (invent)

2. It is _____disappointing______ that our environment is more and more polluted. (disappoint)

3. The price of _________electricity___________ has gone up again. (electric)

4. ______Luckily_____, the typhoon didn’t cause any damage to the village. (lucky)

5. There have been many reports on the __________appearance__________ of UFOs. (appear)

invention

electricity

lucky

appearance

11. disconnected

12. nationwide

13. classifying

14. well

15. beautiful

1. traditional

2. celebration

3. looks

4. popular

5. important

6.longevity

make the similar sentences

1. we turn on the heating less often because the price of the electricity has gone up (due)

=> We turn on the heating less often due to the rise of the electricity price.

2.because of the strike david has been forced to close two of his shops (resulted)

=> The strike resulted in David having been forced to close two of his shops.

3. i really don't want to see him again (desire)

=> I don't desire to see him again.

4.the fact that a great area of trees in brazil rainforest has been cut down has had a devastating effect on the ecosytem (deforestation)

=> The deforestation in brazil rainforest has had a devastating effect on the ecosytem.

more pretty

more expensive

V. Combine two sentences into one, using the connectives from the list:1. You can't borrow my dictionary. You bring it back on Monday. (unless)

=>UNLESS YOU BORROW MY DICTIONARY , YOU WON'T BRING IT BACK ON MONDAY

2. Although the cost of installation is very high, solar domestic heating systems are economical

Despite  THE HIGH COST OF INSTALLATION , solar domestic heating systems are economical

3. The solar panel can save energy. We had the solar panel installed yesterday. (which)

=>THE SOLAR  PANEL WHICH WE HAD S.O INSTALL YESTERDAY CAN SAVE ENERGY

4. I have very few friends. I feel lonely. (so)

=> I have very few friends,SO I feel lonely. (

5. We don't have enough time, so we can't join the course. (if)

=>IF I HAD ENOUGH TIME,WE COULD JOIN THE COURSE

6. The house is quite beautiful.'I was born there. (where)

=>THE HOUSE WHERE I WAS BORN IS QUITE BEAUTIFUL

7. People believe that Manh is a brave man Manh

=>MANH IS BELIEVED TO BE A BRAVE MAN

8. "You can go home now, but you must review this lesson", he said to me  He said that 

=>HE SAID THAT I COULD GO HOME THEN BUT I HAD TO REVIEW THAT LESSON

9. I don't get many opportunities to practise my English. I find it difficult to remember everything I study. (because)

=>I find it difficult to remember everything I study BECAUSE I don't get many opportunities to practise my English.

10. I'm practising speaking English a lot. I don't want to fail in the oral test. (therefore)

=>I don't want to fail in the oral test THEREFORE I'm practising speaking English a lot 

11. It will rain tomorrow, then we will have to cancel the trip

If IT DOESN'T RAIN TOMORROW,WE WON'T HAVE TO CANCEL THE TRIP

12. I regret taking up this course.-> I wish I HADN'T TAKEN UP THIS COURSE

13. I learn English because I want to find a good job. (ORDER)

=>I LEARN E IN ORDER TO FIND A GOOD JOB

WORD FORM :

1. Oil leaking from the vessel kill marine _______life_______ ( live )

2. People must have ______responsibility________ for the air pollution ( responsible )

3. They must learn about keeping the environment ______unpolluted______ ( pollute )

4. Solar energy doesn't cause _____pollution_____ ( pollute )

5. That boy did the test very ______quickly____ ( quick )

6. The product is very ______harmful_______ to the environment ( harm )

7. The exhaust fume in the air causes many _______respiratory___ problems ( respire )

8. The price of _____electricity______ has gone up again ( electric )

9. This river is ______polluted______ so it's no safe for us to swim ( pollute )

10. The sky is very ____cloudy_____. The weather is very hot today ( cloud )

WORD FORM :

3. They must learn about keeping the environment ____pollution________ ( pollute )

4. Solar energy doesn't cause ____polluted______ ( pollute )

5. That boy did the test very ____quickly______ ( quick )

6. The product is very _______harmful______ to the environment ( harm )

8. The price of ______electrical_____ has gone up again ( electric )

9. This river is _______polluted_____ so it's no safe for us to swim ( pollute )

10. The sky is very ______cloudly___. The weather is very hot today ( cloud )