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Rewrite the sentences starting with the given words.
1. I didn’t eat lunch, I feel hungry now.
→ If I had eaten lunch, I wouldn't have been hungry now.
2. I only come if they invite me.
→ Unless they invite, I won't come.
3. He didn’t revise all his lessons, he failed the exam.
→ If he had rivised all his lessons, he wouldn't have failed the exam.
4. The park is over there, only 5 minutes walk.
→ If you walk for 5 minutes, you will find the park.
5. Leave me alone or I’ll call the police.
→ Unless you leave me alone, I won't call the police.
6. If you arrive at the office earlier than I do, please turn on the air-conditioner.
→ Should it doesn't snow, the children will go to school.
7. The children don’t go to school in the snowy weather.
→ If it doesn't snow, the children will go to school.
8. He died so young; otherwise, he would be a famous musician by now.
→ Had it not been for his dead, he would have been a famous musician by now.
9. You must tell me the whole truth or I won’t help you.
→ Unless you tell me the whole truth, I will help you.
10. The car breaks down so often because you don’t take good care of it.
→ Were I take good care of it, the car wouldn't break down so often.
If I had eaten lunch, I wouldn’t have felt hungry now.
2. Unless they invite me, I won’t come.
3. If he had revised all his lessons, he wouldn’t have failed the exam.
4. If you walk to the park, it will take you 5 minutes.
5. →5. Unless you leave me alone,I’ll call the police.
6. →6. Should you arrive at the office earlier than I do, please turn on the air- conditioner.
7. 7.→ If it snows, the children won’t go to school.
8. →8. Had he not died so young, he would have been a famous musician by now.
9. → 9.Unless you tell me the whole truth, I won’t help you.
10. 10.→ Were I to you, I would take good care of it.
36. Unless you worked hard, you will fail the test.
-> Unless you work hard, you will fail the test.
37. I won’t take the money unless I don’t do the job.
-> I won’t take the money unless I do the job.
38. You can use my dictionary if you didn’t have one.
-> You could use my dictionary if you didn’t have one.
39. If we take the car, we would have to pay for parking
-> If we had taken the car, we would have to pay for parking
40. Unless you are on board now, you would not experience those marvelous things.
-> Unless you were on board now, you would not experience those marvelous things.
1. Turn off all the lights and you will not pay more money.
If you turn off all the lights, you will not pay more money
2. Unless she wears warm clothes, she will have a cold.
If she doesn't wear warm clothes, she will have a cold
3. Be careful or you may have an accident.
If you aren't careful, you may have an accident
4. phone your parents or you have a trouble.
If you don't phone your parents, you will have a trouble
5. Unless she whispers, everyone knows what she is saying.
If she doesn't whispers, everyone knows what she is saying
6. Stay here and you will feel save.
If you stay here, you will feel safe
7. Pay electricity bill today or your electricity will be cut off.
If you don't pay electricity bill today, your electricity will be cut off
8. Stop smoking otherwise your cough may be worse.
If you don't stop smoking, your cough may be worse
9. Unless we use less fossil fuel, they will be run out soon.
If we don't use less fossil fuel, they will be run out soon
10. Unless it stops raining today, we may be faced with a serious flood.
If it doesn't stop raining today, we may be faced with a serious flood
Part : T (true) or F
We can develop alternative sources of energy, and unless we try we'll never succeed. Instead of burning fossil fuels we should be concentrating on more economic uses of electricity, because electricity can be produced from any sources of energy. If we didn't waste so much energy, our resources would last longer. We can save more energy by conservation than we can produce for the same money. Unless we do research on solar energy, wind power, tidal power, hydroelectric plants... our fossil fuels will run out and we'll all freeze or starve to dealth. Several countries are spending much more time and money on research because the energy from the sun, the waves and the winds last forever. We really won't survive unless we start working on cleaner and safer sources of energy.
1. Fossil fuels are renewable sources of energy F
2. Eletricity can be produced from the sea T
3. The energy from the sun, the waves, and the winds will never be used up T
4. We really need to worry about cleaner and safer sources of energy T
5. What is the passage mainly about?
A. We are facing huge lack of energy
B. Electricity is the main energy we use
C. Altenative sources of energy must be developed
D. It is impossible to have safer sources of energy
6. Which source of energy cannot last forever?
A. coal B. wind C. water D. waves
Extra reading comprehension
1. Compete the paragraph, using the A-F given below. There are more than needed
A. communicate with teachers by means of
A. to use the Internet
C. a lot of time
D. connect with their teachers from home
E. to communicate with customers and workers
F. who use the computer network
It is estimated that about 200 million people (1)__who use the computer network___ around the world. The Internet allows people to work at home instead of traveling to work. The internet aloows businesses (2)__ to communicate with customers and workers____ in any part of the work for the cost of local telephone call. Email allows users to send documents, pictures and other data from one part of the word to another in at least 5 minutes. People canuse the Internet to do shopping. This saves (3)__a lot of time____. It is possible to use the Internet for education - students may (4)__connect with their teachers from home___ to send or receive email r talk their problems throuh "on-line" rather than attend a class
1.Don't be careless or you'll drop the saucepan
If_____you are careless, you'll drop the saucepan ________________
2.Morning exercise makes you feel better
If____you do Morning exercise you will feel better __________________
3.Don't be shy lazy or you'll fail the examination
If___you are shy you'll fail the examination______________________
4.Work hard and you'll pass yourexamination
If___you work hard, you'll pass yourexamination______________________
5.Study hard or you won't get good marks
If____you study hard, you will get good marks ________________
6.Be careful or you'll cause an accident
If_____you aren't careful, you'll cause an accident _____________
7.Be patient and you'll pass the final examination
If_____you are patient you'll pass the final examination _____________
9.Be clam and you will succeed in your job
If___you are clam,you will succeed in your job _____________
10.Work hard and you are successful
If____you work hard, you will be successful___________
1.Don't be careless or you'll drop the saucepan
If_you are careless, you'll drop the saucepan____________________
2.Morning exercise makes you feel better
If_you take morning exercise, you'll feel better_____________________
3.Don't be shy lazy or you'll fail the examination
If__you are shy , you'll fail the examination_______________________
4.Work hard and you'll pass yourexamination
If you work hard you'll pass the examination_________________________
5.Study hard or you won't get good marks
If__you don't study hard you won't get good marks__________________
6.Be careful or you'll cause an accident
If_you aren't careful you'll cause an accident_________________
7.Be patient and you'll pass the final examination
If_you aren't patient you won't pass the final examination_________________
9.Be clam and you will succeed in your job
If_you are clam you'll succeed in your job_______________
10.Work hard and you are successful
If_you work hard you 'll be successful______________
11.Hurry up or we'll be late for the concert
If you don't hurry up, we'll be late for the concert__________________
12.Smoking makes him so weak
If he smokes, he'll be so weak______________
13.We don't play well because it rains heavily
If_it didn't rain, we would play well____________
14.Be calm,or you'll make a wrong decision
If_you aren't calm, you'll make a wrong decision_____________________
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