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a. Put the verb in brackets into the correct tense:
1.If I see him, I (give) ...........will give............................ him a gift.
2.If he (study) ...............studies..................... hard, he can pass the exam.
3.Rice plants (grow) ..........will grow...................... if there is enough rain.
4.If she (not hurry) .........does not hurry........................, she may be late.
5.If I tell you a secret, ..will............. you (promise) ......promise.................. not to tell it to anyone ?
1) It is late now; I don't think Ann will come to see us
-> I would be surprised if Ann came to see us.
2)We don't go on holiday because we don't have enough money
-> If we had enough money, we would go on holiday.
3) Do these exercises more carefully or you will fail the exams
-> Unless you do these exercises more carefully, you will fail the exams.
4) I do not know the answer so I can not tell you
-> If I knew the answer, I could tell you.
5) She can't apply for the job because she doesn't know French
-> If she knew French, she could apply for the job.
6) if she didn't come here now, we'd come back home
-> Unless she came here now, we'd come back home.
7) Be careful or you will not be able to get the job
-> Unless you are careful, you will be able to get the job.
8) The trees will die unless it rains soon
-> If it doesn't rains soon, the trees will die.
Use UNLESS INSTEAD of IF:
1. if you are not careful, you will cut yourself with that knife.
- Unless you are careful, you will cut yourself with that knife.
2. If you do not like this one, I'll bring you another.
-Unless you like this one, I'll bring you another.
3. She'll be late if she does not hurry.
-Unless she hurries, she will be late.
4. If you don't sneeze, he won't know that we are there.
-]Unless you sneeze, he won't know that we are there.
5. Turn down the gas or the rice will burn.
-Unless you turn down the gas, the rice will burn.
Rewrite:
1. I'll help you if you promise to try harder
-Unless.......you promise to try harder, I will not help you ......
2. When you press this button, this machine will start
- If.........you don't press this button, this machine will not start ......
3. Today is an awful day, so we can't go to the beach
- If.......today weren't an awaful day, we could go to the beach ........
4. It is raining, so we can't go out
- Unless.........it is raining, we can go out ........
5. If you don't rest yourself, you really will be ill
- Unless.........you don't rest yourself, you really will be ill .......
6. Unless he phones immediately, he won't get any information
- If.........he doesn't phone immediately, he won't get any information ......
7. We got lost because we didn't have a map
- If.......we had had a map, we wouldn't have got lost ....
8. You'd better learn English
- If I were.......you, I would learn English .......
9. If you don't start at once, you will be late
- Unless........you start at once, you will be late .......
10. Unless you water the tree every day, it will die
- If.....you don't water the tree everyday, it will die .....
Rewrite:
1. I'll help you if you promise to try harder
-Unless...............you don't promise to try harder,I'll help you.........
2. When you press this button, this machine will start
- If..........you press this button, this machine will start.................
3. Today is an awful day, so we can't go to the beach
- If........ Today weren't an awful day, so we could go to the beach.....
4. It is raining, so we can't go out
- Unless...........it were raining, we could go out.............................
5. If you don't rest yourself, you really will be ill
- Unless...........you rest yourself, you really will be ill..........
6. Unless he phones immediately, he won't get any information
- If......he doesn't phone immediately, he won't get any information...
7. We got lost because we didn't have a map
- If..........we had had a map,We wouldn't have got lost.........................
8. You'd better learn English
- If I were.............you,I would learn English....................
9. If you don't start at once, you will be late
- Unless................you start at once, you will be late.................
10. Unless you water the tree every day, it will die
- If................you don't water the tree every day, it will die.........
I. Use UNLESS instead of IF:
1. If you are not careful, you will cut yourself with that knife
- Unless...........you're careful,you will cut yourself with that knife........
2. If you do not like this one, i'll bring you another
- Unless.......you like this one, I'll bring you another........
3. She'll be late if she does not hurry.
- Unless.........she hurries,she'll be late.........
4. If you doesn't sneeze, he won't know that we are there.
- Unless........you sneeze, he won't know that we are there..........
5. If she does her hair diffrently, she will look quite nice.
- Unless........she does her hair differently she will look quite nice........
II. Make conditional sentences according to the fact provided (type1)
1. Keep silent or you wake the baby
- ............................if you don't keep silent, you will wake the baby up..................................
2. Go right now or you'll be late for the train.
-...............................unless you go right now, you'll be late for the train........................
3. Practice speaking English regularly or you will not pass this entrance exam.
-...........................unless you practice speaking english regularly, you won't pass this entrance exam ........................
1/ If he (study) _____studies___ harder, he can pass an exam.
2/ She may be late if she (not hurry) ___hurries_____.
3/ Tell him to ring me if you (see) __see______ him.
4/ If you are kind to me, I (be) __will be_____ good to you.
5/ If he (give) _gives______ up smoking, as his doctor orders, he will be soon well again.
7/ You (not pass) ____will not pass____ your driving test unless you drive more carefully.
8/ He’ll be ill if he (not stop) ____does not stop____ worrying so much.
9/ We’ll go to the beach tomorrow if it ( be) ___is_____ nice.
10/ Jane never( get) ____will get____there on time if the train leaves soon
Exercise 6 : Choose the best answer for each of the following sentences. 1._____have enough apples, she’ll make an apple pie this afternoon. A.Should she B. If she C. Will she D. Unless she 2.If you_____to me, you wouldn’t have got so much trouble. A. listened B. would listen C. had listened D. Would have listened 3.If you don’t know how to spell a word, you_____ look it up in the dictionary. A. must B. will C. should D. ought 4.If the sun _____, we _____for a walk. A. shines / will go B. shone / will go C. shone / would go D. had shone / would go 5.The campfire _____ if it _____ last night. A. wouldn’t be cancelled / hadn’t rained B. wouldn’t have been cancelled / hadn’t rained C. would have been cancelled / hadn’t rained D. will be cancelled / rains 6.But for our parents, we _____ successful in life. A. will never be B. would never be C. wouldn’t have be D. would have never been 7.If I _____ my wallet at home this morning, I _____ money for lunch now. A. leave / will have B. didn’t leave / would have C. hadn’t left / would have D. hadn’t left / would have had 8.It is too bad, Lam isn’t here. If he _____ here, he _____ what to do. A. were / would know B. is / will know C. had been / would have known D. was / would know 9.If we _____ the plans carefully, we would not have had so many serious mistakes. A. study B. had studied C. studied D. were studying 10.I will never talk to you again _____ you apologize me _____ your being rude. A. if / for B. unless / for C. or / of D. whether / or 11._____if you work harder, you will be sacked. A. Whether B. If C. However D. Unless 12.I think you should stop smoking. A. If I am you, I will stop smoking. B. If I were you, I will stop smoking. C. If I were you, I would stop smoking. D. If I had been you, I would stop smoking. 13.If you take the ice out of the fridge, it _____. A. vaporizes B. melts C. heats D. disappears 14.We should do something to protect water from being polluted _____we will have nothing to drink in the future. A. if B. whether C. or D. unless 15.Let’s knock on their door to see _____home. A. if they’re B. unless they’re C. whether they were D. if they were 16.Unless we _____more snow, we can’t go skiing. A. will have B. have C. have had D. had 17.You’ll fail the exam _____ you start revising. A. if B. until C. when D. unless 18.Unless you wash the car, you _____not drive it at the weekend. A. would B. could C. have to D. may 19.If Peter _____his car before the drive, he _____the problem of out of petrol. A. checked / will not get B. had checked / would not have got C. checks / will not have got D. would be checking / will not have got 20.He stepped on the mine, and it exploded. A.If he doesn’t step on the mine, it doesn’t explode. B.If he doesn’t step on the mine, it won’t explode. C.If he didn’t step on the mine, it wouldn’t explode. D.If he hadn’t stepped on the mine, it wouldn’t have exploded. 21. In my experiments, the liquid is cooled to 32ºF. It always freezes. A.If you cool the liquid to 32 degrees, it froze. B.If you cooled the liquid to 32 degrees, it would freeze. C.If you cool the liquid to 32 degrees, it will freeze. D.If you had cooled the liquid to 32 degrees, it would have frozen. 22.It may rain this afternoon. I hope it doesn’t because I don’t want the match to be cancelled. A. If it rains, the match is cancelled. B. If it rains, the match will be cancelled. C. if it rained, the match would be cancelled D. If it had rained, the match would have been cancelled. 23.Unfortunately, I don’t know Philosophy, so I can’t answer your question. A.If I know Philosophy, I can answer your question. B.If I know Philosophy, I will be able to answer your question. C.If I knew Philosophy, I would be able to answer your question. D.If I had known Philosophy, I would have been able to answer your question. 24._____ there are some more ideas, we can end the meeting now. A. If B. As if C. Unless D. In case 25.If he _____with us now, he _____ the beauty of nature of the National Park. A. is / can enjoy B. was / will enjoy C. has been / would enjoy D. were / could enjoy 26.If they had searched more carefully, they...the watch sooner. A. will find B. would find C. found D. would have found 27.If I had got up early, I _____ to have breakfast now. A. have B.I had C. would have D. would have had 28.I cannot buy a new computer _____ I save enough money. A. if B. even if C. unless D. as if 29.Most people you meet will be polite to you _____. A. if you are polite to them B. if you will be polite to them C. unless you are polite to them D. if you were polite to them 30.If you do so, it _____ the matter worse. A. makes only B. would only make C. will only make D. had only made 31.You _____ English fluently unless you practice it every day. A. will speak B. will not speak C. can speak D. did not speak 32.Hurry up _____ you will miss the bus and be late for school. A. if B. and C. or D. as 33.You will get a good seat if you _____ first. A. come B. came C. have come D. will come 34.Sam will not graduate_____. A. if he passed all the tests B. if he does not pass all the tests. C. unless he passes all the tests D. unless he had passed all the tests. 35.If I had time, I would go with you. A.I am free and surely go with you. B.I am too busy to go with you. C. I will go with you because I have time. D. I am free enough to go with you. 36.If Margaret hadn’t been wearing a seat belt, she.... Injured. A. has been B. would has been C. would be D. would have been 37.If I _____ the rain yesterday, I_____ ill. A. had not caught / would have been B. had not caught / would have not been C. have not caught / were not D. have not caught / would have been 38.He looked frightened as if he _____ a ghost. A. sees B. is seeing C. has seen D. had seen 39.What _____if there _____ a serious nuclear accident. A. will happen / was B. happens / were C. would happen / were D. would happen / had been
Lần sau bn vt thì cách ra cho dễ nhìn nhé~~~~
Choose the best answer for each of the following sentences. 1._____have enough apples, she’ll make an apple pie this afternoon. A.Should she B. If she C. Will she D. Unless she
2.If you_____to me, you wouldn’t have got so much trouble.
A. listened B. would listen C. had listened D. Would have listened
3.If you don’t know how to spell a word, you_____ look it up in the dictionary.
A. must B. will C. should D. ought
4.If the sun _____, we _____for a walk.
A. shines / will go B. shone / will go C. shone / would go D. had shone / would go
5.The campfire _____ if it _____ last night.
A. wouldn’t be cancelled / hadn’t rained B. wouldn’t have been cancelled / hadn’t rained C. would have been cancelled / hadn’t rained D. will be cancelled / rains
6.But for our parents, we _____ successful in life.
A. will never be B. would never be C. wouldn’t have be D. would have never been
7.If I _____ my wallet at home this morning, I _____ money for lunch now.
A. leave / will have B. didn’t leave / would have C. hadn’t left / would have D. hadn’t left / would have had
8.It is too bad, Lam isn’t here. If he _____ here, he _____ what to do.
A. were / would know B. is / will know C. had been / would have known D. was / would know
9.If we _____ the plans carefully, we would not have had so many serious mistakes.
A. study B. had studied C. studied D. were studying
10.I will never talk to you again _____ you apologize me _____ your being rude.
A. if / for B. unless / for C. or / of D. whether / or
Choose the best answer for each of the fllowing sentences
1. ............ if you work harder, you will be sacked.
A. Whether B. If C. However D. Unless
2. I think you should stop smoking.
A. If I am you, I will stop smoking B. If I were you, I will stop smoking
C. If I were you, I would stop smoking D. If I had been you, I would stop smoking
3. If you take the ice out of the fridge, it ...........
A. vaporizes B. melts C. heats D. disappears
4. We should do something to protect water from being polluted ........... we will have nothing to drink in the future.
A. if B. whether C. or D. unless
5. Let's knock on their door to see .......... home.
A. if they're B. unless they're C. whether they were D. if they were
6. Unless we .......... more snow, we can't go skiing.
A. will have B. have C. have had D. had
7. You'll fail the exam ........... you start revising.
A. if B. until C. when D. unless
8. Unless you wash the car, you .............. not drive it at the weekend
A. would B. could C. have to D. may
9. If Peter ............... his car before the drive, he ................ the problem of out of petrol.
A. cheked / will not get B. had checked / would not have got
C. checks / will not have got D. would be checking / will not have got
10. He stepped on the mine, and it exploded.
A. If he doesn't step on the mine, it doesn't explode.
B. If he doesn't step on the mine, it won't explode.
C. If he didn't step on the mine, it wouldn't explode.
D. If he hadn't step on the mine, it wouldn't have exploded.
1 Unless people plant more trees, they will not have enough fresh air to breathe
2 Unless you water these plants, they will die
3 Unless he changes his living, he’ll get a lot of troubles
4 Unless he improves his spelling, he will not get good grades
5 Unless Hoa eats too much chocolate, she will not be fatter
6 Unless she knows exactly, she won’t open the door
7 Unless we hurry up, we’ll be late for the last bus
8 Unless he keeps his feet dry, he will get a cold
9 Unless she goes out more often, she will fall ill
10 Unless you promise to try harder, I won’t help you
11 If you are not here, the teacher will punish you
12 If your father doesn’t allow you to go, you can’t attend the course
13 If Minh doesn’t get up early, he will be late for class tomorrow
1. If people don’t plant more trees, they will not have enough fresh air to breathe.
-> Unless …they plant more trees, they will not have enough fresh air to breathe…….…………..
2. If you don’t water these plants, they will die.
Unless …you water these plants, they will die…………………………………………..……
3. If he doesn’t change his living, he’ll get a lot of troubles.
-> ……Unless he changes his living, he'll get a lot of troubles….……..
4. If he doesn’t improve his spelling, he will not get good grades.
-> ……Unless he improve his spelling, he will not get good grades…..
5. If Hoa doesn’t eat too much chocolate, she will not be fatter.
-> Unless ……Hoa eats too much chocolate, she will not be fatter……………………….……..
6. She won’t open the door if she doesn’t know exactly.
-> Unless……she knows exactly, she won't open the door………………………………..
7. If we don’t hurry up, we’ll be late for the last bus.
-> Unless we ………hurry up, we'll be late for the last bus……………………