1. Unless Hoa works hard, she won't pass the exam .
=> If ..........................................................................
2. If you don't hurry up, you will miss the train 

=> Unless ......................................................

3. Practice more or you can't speak English well 

=> If .....................................................................
=> Unless.............................................................
4. Listen care fully and you will know how to use this machine .
=> If ..........................................................................................

5. Unless the does her work care fully, she will lose her job .
=> If .....................................................................................
6. If Hoa doen't do her home work, she will be punished .
=> Unless ......................................................................

II. Make conditional sentences, using if or unless. 1. Ican't finish this task if you don't give me a hand. 2. You will run out of money if you don't stop wasting it. 3. Don't call me unless it is an emergency. 4. James will not pass the test unless he studies harder. 5. If Jane finishes her work before 6 p.m, she will dine out with her friends. 1. Work hard and you will pass your exam. If 2. My brother is not good at playing tennis. My brother does not . 3. r'll be on vacation next week, so I won't be able to attend the meeting. Since 4. If you don't start working hard now, you won't be able to pass the final test. Unless . 5. Someone should take this garbage to the garbage dump soon. This garbage 1. I am a member of the anti-pollution program in my school. I often go to school by bus. (so) 2. The trees in this area were cleaned off. Public facilities would be constructed. (because of) 3. All the roads were flooded because it had been raining heavily. (due to) 4. Jimmy ate a lot of fast food, so he put on 10kilograms within just two months. (because) 5. My father got upset because I repeatedly left on the lights I was not using. (so)

1. Our vacation lasts three months.                  

 It’s a …………………………………………………………………….………………

2. If you don’t work hard, you won’t pass the exam.   

Unless …………………………………………………………………………………

3. Your shirt is very nice.                                          

What………………………………………………………………………………….!

4. The hot weather prevented us from going swimming.

We couldn’t ………………………………………………………………………..

5. Every day, my father spends half an hour going jogging.

It takes …………………………………………………………………………………..

6. She needn’t do it so quickly.

She doesn’t have ………………………………………………………………….

7. We didn’t enjoy the trip because of the heavy rain.

The heavy rain prevented …………………………………………………

8. You shouldn’t eat too much candy.

 You’d ……………………………………………………………………..

9. This exercise is easier than that one.

That exercise is not ………………….........................................................…………………………..

10. The weather is too sunny for us to go out.

The weather isn’t…………………..............................................................…………………………..

1. Our vacation lasts three months.                  

 It’s a …………………………………………………………………….………………

2. If you don’t work hard, you won’t pass the exam.   

Unless …………………………………………………………………………………

3. Your shirt is very nice.                                          

What………………………………………………………………………………….!

4. The hot weather prevented us from going swimming.

We couldn’t ………………………………………………………………………..

5. Every day, my father spends half an hour going jogging.

It takes …………………………………………………………………………………..

6. She needn’t do it so quickly.

She doesn’t have ………………………………………………………………….

7. We didn’t enjoy the trip because of the heavy rain.

The heavy rain prevented …………………………………………………

8. You shouldn’t eat too much candy.

 You’d ……………………………………………………………………..

9. This exercise is easier than that one.

That exercise is not ………………….........................................................…………………………..

10. The weather is too sunny for us to go out.

The weather isn’t…………………..............................................................…………………………..

Finish the second sentence in each pair, using If or Unless.

1.   If you don’t do better work than this, you won’t pass the exam.

2.   You can’t visit the United States unless you get a visa.

3.   Unless someone has a key, we can’t get into the house.

4.   Unless he phones immediately, he won’t get any information.

5.   If Joe doesn’t change his ways, he will end up in prison.

6.   If he doesn’t work harder, he’ll lose his job.

7.   If it rains, we won’t go swimming.

8.   You will become ill unless you stop working so hard.

9.   If you work hard, you’ll pass your exam.

10.  Unless you hurry, you won’t catch the bus.

11.  If he doesn’t start work right now, he’ll never finish it.

12.  We won’t get there on time without taking a taxi.

13.  Joan will stay on at school unless she finds a good job before September.

14.  If you don’t rest, you really will be ill.

15.  The child will die if nobody sends for a doctor.

16.  You won’t find any accommodation if you don’t book it in advance.

17.  You will catch a cold if you don’t keep your feet dry.

18.  I’ll call the police if you don’t leave me alone.

20. If he fails the final examination, he won’t be able to graduate.

21. If you are not careful, you will cut yourself with that knife.

22. If you don’t like this one, I’ll bring you another.

23. I’ll not able to do any work if I don’t have a quiet room.

24. If she doesn’t hurry, she’ll be late.

If he doesn’t take more care, he’ll have an accident.

-> Unless . ……………………………………………………………………………………………………….. .

The crops will be ruined if it doesn’t rain soon.

-> Unless ......... . ………………………………………………………………………………………………..

27.           Unless the weather is fine, we’ll stay at home.

->  If . . . . ………………………………………………………………………………………………………..

28.           I can’t go with you unless I get my work finished.

-> If ............... . ………………………………………………………………………………………………………..

29.           If you don’t leave on the 15^th , you’ll get home late for your mother’s party.

-> Unless............ . ………………………………………………………………………………………………..

30.           Tom never does anything unless his father tells him what to do.

-> If ............ . ………………………………………………………………………………………………………..

31.           Don’t take this job if you don’t really want it.

-> Unless ............ . ………………………………………………………………………………………………..

32.           If she does nothing to prepare for the test, she will get bad marks.

-> Unless ......... . ……………………………………………………………………………………………………..

33.           You can’t visit the United States unless you get a visa.

-> If ............... . ………………………………………………………………………………………………………..

34.           Unless you remember our address, you can find it in the phone book.

-> If ...................... . …………………………………………………………………………………………..

1- What will you do if you (win) 2- I would have visited you if I (have)........... a big price ? .....time. 3-If you don't work hard, you (not pass) ………the exam. 4-Joan would buy that car if she (have).............. ....money. 5- If he plays well, he (be) …….will be. got into the team. 6-Jack would have got good mark if he (do)........ ...homework 7-If you (not stop )................ ...borrowing money, you'll be in trouble. 13- If he were paid higher salary, he (not think) ...about another career. 14 If you had invited jack he (come) ….. 11- If she (be)………………….. rich, she could give us some money. 12- You will be late if you (not hurry)............ 8-If John had finished the work on time, he (get)..... ..award. 9- If John (try)........ , he can do better. 10- If he (eat)...………...all that, he'll be ill.