I. Vo … + O   or S + WILL + Vo  -> IF YOU + DON’T  Vo … , S + WILL + Vo

1. Do your exercises or you will fail the exam.                                                                                                            àIf you don’t do your exercises , you will fail the exam

àUnless you do your exercises , you will fail the exam

2. Save some money or you won’t able to buy the house. àIf you don’t Save some money, you won’t able to buy the house                                                      

3. Behave yourself or your parents will be very unhappy. àUnless you behave yourself, your parents will be very unhappy

4. Do it carefully or you’ll feel sorry afterwards.  àIf   you don’t  do it  carefully, you’ll feel sorry afterwards                                                                                                                       

5. Ask him first or he won’t offer to help. àIf you don’t   Ask him first or he won’t offer to help                                                                              

6. Be calm or you’ll make a wrong decision. àUnless ____________________________________                                                                                        

7. Be careful or you’ll cut yourself with that knife.   àIf_____________________________________                                                                                            

8,  Study hard or you won’t pass the exam.=> If……………………………………………………

9, Don’t be impatient or you will make mistakes.=> If…………………………………………

10, Leave me alone or I’ll call the police.=>……………………………… ………………………………

11, Don’t tell lies to your boss or you’ll be fired at once.=> If………………………………………

12, Tell me the whole truth or I won’t help you

13, Keep silent or you’ll wake the baby up. →If  ……………………………………………..…..………

14, Stop talking or you won’t understand the lesson.→ If …………………………………….....….…….

15, Study hard or you won’t pass the exam.=> If……………………………………………

16, Don’t be impatient or you will make mistakes.=> If…………………………………………

17, Leave me alone or I’ll call the police. => If…………………………………………………

=>Unless……………………………………………………………………………………

18. . Work harder or you will lose your job.→………………………………………………………

2. Pay attention to the teacher or you won’t understand the lessons.

→…………………………………………………………………………………………

3. Go to bed early or you can’t get up early the next morning ->……………………………………………….

(Viết các câu sang câu điều kiện loại 1 có thật ở hiện tại theo mẫu)

1.     Do your exercises or you will fail the exam.

=> If you don’t do your execises, you will fail the exam.

2.     Save some money or you won’t be able to buy the house.

è If............................

3.     Behave yourself or your parents will be very unhappy.

=> If............................

4.     Do it carefully or you’ll feel sorry afterwards.

=> If............................

5.     Ask him first or he won’t offer to help.

=> If............................

6.     Be calm or you’ll make a wrong decision.

=> If ....................

7. Be careful or you’ll cut yourself with that knife.

=> If ..............................

8. Concentrate on your teacher’s lecture, or you won’t understand the lesson.

If…………………………………………………………………………………………

9. They have to drive carefully; otherwise, they will have an accident.

If…………………………………………………………………………………….

10. Your sister must finish her homework, or she will be punished.

If……………………………………………………………………………………

11. We should do exercises regularly so that we will be in good shape.

If……………………………………………………………………………………

12. Take part in outdoor activities, and you will widen your knowledge.

If…………………………………………………………………………………….

13. We should eat sensibly so that we won’t gain weight.

If……………………………………………………………………………………

14. You should study English well, and you will have many opportunities for good jobs.

If…………………………………………………………………………………………….

15. Your parents have to control their temper, or they will punish you severely.

If………………………………………………………………………

II.            REWRITE 

1. Do your exercises or you will fail the exam.                                                                                                            àIf___________________________________

àUnless_______________________________________

àIf___________________________________

2. Save some money or you won’t able to buy the house. àIf______________________________________ àUnless_______________________________________

àIf___________________________________                                                       

3. Behave yourself or your parents will be very unhappy. àIf______________________________________ àUnless_______________________________________

àIf___________________________________                                                      

4. Do it carefully or you’ll feel sorry afterwards.  àIf______________________________________ àUnless_______________________________________

àIf___________________________________                                                      

5. Ask him first or he won’t offer to help.

àIf______________________________________ àUnless_______________________________________

àIf___________________________________                                                 

   6. Be calm or you’ll make a wrong decision.

àIf______________________________________ àUnless_______________________________________

àIf___________________________________                                                       

7. Be careful or you’ll cut yourself with that knife.   àIf______________________________________ àUnless_______________________________________

àIf___________________________________                                                      

8,  Study hard or you won’t pass the exam.

àIf______________________________________ àUnless_______________________________________

àIf___________________________________                                                      

9, Don’t be impatient or you will make mistakes.

àIf______________________________________ àUnless_______________________________________

àIf___________________________________                                                      

10, Leave me alone or I’ll call the police.

àIf______________________________________ àUnless_______________________________________

àIf___________________________________                                                      

11, Don’t tell lies to your boss or you’ll be fired at once.

àIf______________________________________ àUnless_______________________________________

12, Tell me the whole truth or I won’t help you

àIf______________________________________ àUnless_______________________________________

àIf___________________________________                                                      

13, Keep silent or you’ll wake the baby up.

àIf______________________________________ àUnless_______________________________________

àIf___________________________________                                                      

14, Stop talking or you won’t understand the lesson

àIf______________________________________ àUnless_______________________________________

àIf___________________________________                                                      

15, Study hard or you won’t pass the exam.

àIf______________________________________ àUnless_______________________________________

àIf___________________________________                                                      

16, Don’t be impatient or you will make mistakes.

=> If…………………………………………

17, Leave me alone or I’ll call the police.

=> If…………………………………………………

=>Unless……………………………………………………………………………………

18. . Work harder or you will lose your job.

→………………………………………………………

2. Pay attention to the teacher or you won’t understand the lessons.

→…………………………………………………………………………………………

3. Go to bed early or you can’t get up early the next morning ->……………………………………………….

II.            REWRITE

1. Do your exercises or you will fail the exam.                                                                                                            -If___________________________________

-Unless_______________________________________

-If___________________________________

2. Save some money or you won’t able to buy the house.

-If______________________________________

-Unless_______________________________________

-If___________________________________                                                       

3. Behave yourself or your parents will be very unhappy.

-If______________________________________

-Unless_______________________________________

-If___________________________________                                                      

4. Do it carefully or you’ll feel sorry afterwards. 

-If______________________________________

-Unless_______________________________________

-If___________________________________                                                      

5. Ask him first or he won’t offer to help.

-If______________________________________

-Unless_______________________________________

-If___________________________________                                                 

   6. Be calm or you’ll make a wrong decision.

-If______________________________________

-Unless_______________________________________

-If___________________________________                                                       

7. Be careful or you’ll cut yourself with that knife.  

-If______________________________________

-Unless_______________________________________

-If___________________________________                                                      

8,  Study hard or you won’t pass the exam.

-If______________________________________

-Unless_______________________________________

-If___________________________________                                                      

9, Don’t be impatient or you will make mistakes.

-If______________________________________

-Unless_______________________________________

-If___________________________________                                                      

10, Leave me alone or I’ll call the police.

-If______________________________________

-Unless_______________________________________

-If___________________________________                                                      

11, Don’t tell lies to your boss or you’ll be fired at once.

-If______________________________________

-Unless_______________________________________

12, Tell me the whole truth or I won’t help you

-If______________________________________

-Unless_______________________________________

-If___________________________________                                                       

13, Keep silent or you’ll wake the baby up.

-If______________________________________

-Unless_______________________________________

-If___________________________________                                                       

14, Stop talking or you won’t understand the lesson

-If______________________________________

-Unless_______________________________________

-If___________________________________                                                      

15, Study hard or you won’t pass the exam.

-If______________________________________

-Unless_______________________________________

-If___________________________________                                                      

16, Don’t be impatient or you will make mistakes.

=> If…………………………………………

17, Leave me alone or I’ll call the police.

=> If…………………………………………………

=>Unless……………………………………………………………………………………

18. . Work harder or you will lose your job.

→………………………………………………………

2. Pay attention to the teacher or you won’t understand the lessons.

→…………………………………………………………………………………………

3. Go to bed early or you can’t get up early the next morning ->……………………………………………….

III. Rewrite the following sentences .(2.5ms)

1. You practise your English regularly or your English does not improve .

If ...........................................................................................................................

2. Water the plants regularly or they will die .

If you .....................................................................................................................

3.Only if you study hard , you will pass the test .

Unless .....................................................................................................................

4.Work harder , otherwise you will fail the exam .

You ......................................................................................................................

5.If we don't hurry, we will be late for the show.
Unless .....................................................................................................................

2. If – clause:

1. Study hard or you will fail the exam.

→ If you …………………………………………………………

→ If you …………………………………………………………………………………………………

2. Work hard or you won’t pass your examination.

→ If you ………………………………………………………………………………………………….

→ If you ………………………………………………………………………………………………….

3. Water flowers or they will die.

→ If you ………………………………………………………………………………………………….

→ If you ………………………………………………………………………………………………….

4. Keep the environment clean or we won’t have an ideal place to live.

→ If we ………………………………………………………………………………………………….

→ If we ………………………………………………………………………………………………….

5. Get up early or you’ll be late for school.

→ If you ………………………………………………………………………………………………….

→ If you ………………………………………………………………………………………………….