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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
V. Combine two sentences into one, using the connectives from the list: and but, because, so, therefore, or, moreover, however, if, when, unless.
1. You can go home if You've finished this exercise.
2. I don't get many opportunities to practise my English so I find it difficult to remember everything I study
3. I'm practising speaking English a lot because I don't want to fail in the oral test.
4. The world's energy resources are limited so We should use them economically
5. The country could face an energy crisis and Demand continues to rise.
6. You can't borrow my dictionary unless You bring it back on Monday.
7. The cost of installation is very high but Solar dosmestic heating systems are economical to use.
8. Solar panels are placed on the roof of a house and The Sun's energy is used to heat water.
9. I don't agree with a lot of his teaching methods but He is a good teacher
10. We'd beter not waste water because We won't have enough to drink sooner or later.
11. The house is quite beautiful and The cost is not too high.
12. Do you want to study more and look for a job?
Are you looking for a cheap. clean, effective source of power that doesn't cause pollution or waste natural resources? Look no further than solar energy from the sun. At present, most of our electricity comes from the use of coal, gas, oil, or nuclear power. This power could be provided by the sun. One percent of the solar energy that reaches the Earth is enough to provide power for the total pollution. Many countries are already using solar energy. Solar panels are placed on the roof of a house and the Sun's energy is used o heat water. The energy can be stored for a number of days, so on cloudy days you can use solar energy. Sweden has an advanced solar energy program. There, all buildings will be heated by solar energy and cars will use solar energy instead of gas by the year 2015.
True or False sentence:
1...........T.........Solar energy can be cheap and clean.
2........F............Most of our electricity now comes from nuclear power.
3..........F..........the solar energy that gets to the Earth cannot provide enough power for the world's population.
4..............T......Solar energy can be used on cloudy days.
5...........T.........All buildings in Sweden will be heated by solar energy in 2050.
Are you looking for a cheap. clean, effective source of power that doesn't cause pollution or waste natural resources? Look no further than solar energy from the sun. At present, most of our electricity comes from the use of coal, gas, oil, or nuclear power. This power could be provided by the sun. One percent of the solar energy that reaches the Earth is enough to provide power for the total pollution. Many countries are already using solar energy. Solar panels are placed on the roof of a house and the Sun's energy is used o heat water. The energy can be stored for a number of days, so on cloudy days you can use solar energy. Sweden has an advanced solar energy program. There, all buildings will be heated by solar energy and cars will use solar energy instead of gas by the year 2015.
True or False sentence:
1........T............Solar energy can be cheap and clean.
2..........F..........Most of our electricity now comes from nuclear power.
3...........F.........the solar energy that gets to the Earth cannot provide enough power for the world's population.
4.............T.......Solar energy can be used on cloudy days.
5....................All buildings in Sweden will be heated by solar energy in 2050.
Cars will use solar power instead of gas in Sweden by the year 2015.
OR: In Sweden, cars will use solar power instead of gas by the year 2015.
III. Rewrite the following sentences .(2.5ms)
1. You practise your English regularly or your English does not improve .
If you practise your English regularly, your English will improve.
2. Water the plants regularly or they will die .
If you don't water the plants regularly, they will die.
3.Only if you study hard , you will pass the test .
Unless you study hard, you won't pass the test.
4.Work harder , otherwise you will fail the exam .
You will fail the exam unless you work harder.
5.If we don't hurry, we will be late for the show.
Unless we hurry, we will be late for the show.
rewrite
1. practice english regularly or you don't improve your english
=>> if..you practice English rugularly, you will improve your English..
2. we should use solar energy instead of fossil fuel.
=>> solar energy .should be used instead of fossil fuel..
rewrite
1. practice english regularly or you don't improve your english
=>> if..you don't practice English regularly, you won't improve your E..
2. we should use solar energy instead of fossil fuel.
=>> solar energy .should be used instead of fossil fuel.