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Find mistakes and fix it:
1. Unless we leave a bowl of water under the sun, it will evaporate.
=> If
2. If you continue to use fuels at the current rate, we would soon have to face a fuel crisis.
=> will
3. If I had known that the road were flooded, I would never have taken that away.
=> were flood
5. The population of the town can be divided into three main ______________.
A. gangs B. tribes C. lists D. groups
6. ____________refers to the existence of different plants and animals in a place.
A. Resources B. Existence C. Biodiversity D. Marine
7. The turtle has a long life _________________.
A. age B. span C. expectancy D. Both B and C
8. The case is still under ___________________
A. investigate B. investigated C. investigator D. investigation
9. The whale is a(n) _______________species.
A. endanger B. dangerous C. endangered D. endangering
10. Strong _________________are dangerous for swimmers.
A. seas B. rivers C. climates D. currents
11. It is important to ________________a reasonable level of fitness.
A. control B. maintain C. keep D. B and C
12. We would stay at home __________________.
A. if it were snowing C. if it is going to snow
B. if it would snow D. if it will snow.
13. I am sure that Nam would go to the cinema with you ____________.
A. if you ask him C. if you asked him
B. if you will ask him D. if you would ask him
14. I will never talk to you again _____________you apologize me___________ your being so rude.
A. if / for B. unless / for C. or / of D. whether / of
15. The whale feeds by opening its mouth wide, waiting for masses of shrimps-like animals called
_____________.
A. crabs B. shrimps C. starfish D. krill
1. If we continue to use fuels at the current rate, we would soon have to face a fuel crisis => will
2. If I am 10 centimeters taller, I would play basketball => were
3. If the doctors could find in the remedy, a lot of people would be saved => out
4. If she bought that house now, she ran out of money => would run
5. What you would do if you could speak French well? =>would you do
6. If tomorrow the weather will be bad, the match will be postponed => is
7. If you will see Mike today, please ask him to phone me => \(\varnothing\)
8. If I were you, I will go to the dentist's and have the tooth checked => would
9. If you hadn't left the car unlooked, it would't have be stolen =>been
10. What would happen because I pressed that red button => if
11. If the weather is fine today, we would go to the beach => will
12. If you will study harder, you will surely pass the coming exams with good results => \(\varnothing\)
13. If the weather weren't too bad, we would to go swimming => \(\varnothing\)
14. If we will reduce the speed of population growth, there will be less pressure on the earth => \(\varnothing\)
15. Unless we leave a bowl of water under the sun, it will evaporate => if
III. Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.
1. He is a _______ biologist . He spends all his life studying sea plants and animals.
A. ocean B. marine C. botany D. sea
2. Sperm whale populations are at risk due to hunting.
A. in danger B. in fewness C. in extinction D .on the decreased
3. _______ is a chemical used for killing weeds.
A. Pesticide B. Herbicide C. Fertilizer D. Antibiotic
4. Some whales migrate into warm waters to bear their _______ .
A. youngs B. diets C. calves D. young whales
5. _______ is the variety of different types of plant and animal life in a particular region.
A. Herbicide B. Interaction C. Environment D. Biodiversity
6. Whales like to feed in the cold oceans where there is a lot of krill.
A. sea plants B. small fish C. tiny shellfish D. small animals
7. Some tiny organisms are _______ along by the currents.
A. carried B. taken C. flowed D. moved
8. These birds ______ to North Africa in winter.
A. settle B. go C. relocate D. migrate
9. Sperm whales are ______, which means they eat meat.
A. herbivores B. carnivores C. omnivores D. mammals
10. Linda has a bad cold. She ____________ out in such bad weather .
A. shouldn’t go B. should take C. should go D. shouldn’t take
11. I think he ______ home tonight because his mother was sick.
A. should ride to B. should stay C. shouldn’t stay D. shouldn’t go out
12. He always has difficulty getting up early. – He ______ up late .
A. should stay B. shouldn’t go C. should go D. shouldn’t stay
13. You _______ Mark . You know it’s a secret.
A. should tell B. shouldn’t tell C. couldn’t tell D. might tell
14. I think this job is suitable for you. You ______ for this job .
A. shouldn’t apply B. should apply C. should look D. shouldn’t look
15. Mr. Nam has a bad cough. He ______ smoking .
A. shouldn’t stop B. should continue D. should give up D. shouldn’t give up
16. Her salary is very low. She _______ another job .
A. should look after B. should look at C. should look in D. should look for
17. If I_______ his phone number, I would call him.
A. know B. knows C. knew D. known
18. If we don’t maintain this biodiversity, the undersea populations would be_______ stake.
A. on B. at C. with D. from
19. The sea bed _______ here to 5000 meters.
A. deep B. deepens C. deeper D. depth
20. She gave me a_______ look and said nothing.
A. mysteriously B. mystery C. mysteries D. mysterious
21. Mark the letter A, B, C, or D to indicate the word(s) CLOSEST in meaning to the underlined word.
Harmful insects must be eliminated to protect our crops.
A. got rid of B. protected C. raised D. cultivated
22. Mark the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word.
Keep only fish that you will eat; release the rest.
A. have B. hold C. take D. catch
1. Joe would end up in prison if he didn't change his way
-> Unless Joe.......changed his way, he would end up in prison .....
2. If he hadn't been rich,he wouldn't have paid all the damages
-> But for....his poverty, he would have paid all the damages ............
3. He was so lazy,that's why he was dismissed from his job
->But for......his laziness, he wouldn't have been dismissed from his job...
4. We won't go for a picnic if we haven't got good weather
->Unless.....we have got good weather, we won't go for a picnic......
5.If anyone objects to my plan,I will change my mind
-> Should anyone......object to my plan, I will change my mind....
6. John is in prison because he robbed the bank
-> Had.......John not robbed the bank, he would not be in prison.......
7. Without luck,he would have failed the driving test
-> If he......hadn't been lucky, he would have failed the driving test.......
8.If he were the last girl in the world,would you marry him?
-> Were.....he the last girl in the world, would you marry him?...........
9.She was sorry that she hadn't applied for the job in the library
-> She regretted.......not applying for the job in the library.........
10. His mother was the most warm-hearted person I've ever known
-> I've never........known a more warm-hearted person than his mother .....
Rewrite the following sentences
1. He smokes too much; that's why he can't get rid of his cough.
->Were he not to smoke too much, he could get rid of his cough.
2.He doesn't take any exercises. He is so unhealthy
->Were he to take some exercise, we would be so healthy.
3.We can't get the ticket because I don't have the right change.
->Were I to have the right change, we could get the ticket.
4.Study hard or you won't pass the exam.
-> Should you study hard, you will pass the exam.
5.Don't be impatient or you will make mistakes.
->Should you be impatient, you will make mistakes.
6.I didn't eat lunch, I feel hungry now.
->Had I eaten lunch, I wouldn't feel hungry now.
7.I only come if they invite me.
->Unless they invite me, I won't come.
8.He didn't revise all his lesson, he failed the exam.
->Had he revised all his lesson, he wouldn't have failed the exam.
9. The park is over there, only 5 minutes walk.
->If you walk to the park, it will take you 5 minutes.
10.Leave me alone or I'll call the police.
->Unless you leave me alone, I'll call the police.
11.The car breaks down so often because you don't take good care of it.
->Were you to take good care of the car, it wouldn't break down so often.
12.He is very bad-tempered, that's why his wife left him soon after marriage.
->If he were not very bad-tempered, his wife wouldn't have left him soon after marriage.
13.Don't tell lies to your boss or you'll be fired at once.
->Should you tell lies to your boss, you'll be fired at once.
14.She got married at such an early age: otherwise, she would be at unisersity now.
-> Had she not got married at such an early age, she would have been at unisersity now.
1. He smokes too much; that's why he can't get rid of his cough.
-> Were he not to smoke too much, he couldn't get rid of his cough.
2.He doesn't take any execises. He is so unhealthy
-> Were he to take any execises, he wouldn't be so unhealthy.
3.We can't get the ticket because I don't have the right change.
-> Were I to have the right change, we couldn't get the ticket.
4.Study hard or you won't pass the exam.
-> Should you hard study, you will pass the exam.
5.Don't be impatient or you will make mistakes.
-> Should you be impatient, you won't make mistakes.
6.I didn't eat lunch, I feel hungry now.
-> Had I eaten lunch, I wouldn't feel hungry now.
7.I only come if they invite me.
-> Unless they invite me, I won't come.
8.He didn't revise all his lesson, he failed the exam.
-> Had he revised all his lesson, he woulfn't have failed the exam.
9. The park is over there, only 5 minutes walk.
-> If you walk to the park, it will take you only 5 minutes.
10.Leave me alone or I'll call the police.
-> Unless you leave me alone, I'll call the police.
11.The car breaks down so often because you don't take good care of it.
-> Were you to take good care of the car, it wouldn't break down so often.
12.He is very bad-tempered, that's why his wife left him soon after marriage.
-> If he wasn't very bad-tempered, his wife wouldn't have left him soon after marriage.
13.Don't tell lies to your boss or you'll be fired at once.
-> Should you tell lies to your boss, you'll be fired at once.
14.She got married at such an early age: otherwise, she would be at unisersity now.
-> Had she not got married at such an early age, she would be at unisersity now.
Without plants, most water would run off
-> If there weren't any plants, most water would run off
Unless the biodiversity of the sea were maintained, marine life would be at stake
-> If the biodiversity of the sea weren't maintained, marine life would be at stake
Without plants, most water would run off
-> If there aren't any plants, most water would run off