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 ......................................................................

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 .....................................................................................................................

Chọn câu có nghĩa gần giống nhau với câu mẫu

96. Unless he takes these pills, he won’t be better.

A. If he takes these pills, he won’t be better.

B. He will be better if he takes these pills.

C. If he doesn’t take these pills, he will be better.

97. The last time I visited my grandparents was two years ago.

A. I used to visit my grandparents every two years.

B. I haven’t visited my grandparents for two years.

C. I didn’t visit my grandparents two years ago.

98. It isn’t necessary to finish the work today.

A. You don’t have to finish the work today.

B. The work must be finished today.

C. You mustn’t finish the work today.

99. Although Nam was very tired, he tried to finish his homework.

A. Nam tried to finish his homework because he was very tired.

B. Nam was very tired and therefore tried to finish his homework.

C. Despite being very tired, Nam tried to finish his homework.

100. No mountain in Viet Nam is as high as Mt. Fansipan.

A. Mt. Fansipan is the highest mountain in Viet Nam.

B. Mt. Fansipan is shorter than any other mountains in Viet Nam.

C. Mt. Fansipan is higher than no mountain in Viet Nam. 

a. Put the verb in brackets into the correct tense:

1.If I see him, I (give) ....................................... him a gift.

2.If he (study) .................................... hard, he can pass the exam.

3.Rice plants (grow) ................................ if there is enough rain.

4.If she (not hurry) ................................., she may be late.

5.If I tell you a secret, ............... you (promise) ........................ not to tell it to anyone ?

b.Use UNLESS instead of IF :

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

- Unless ...................................................................................................................................

2.If you do not like this one, I’ll bring you another.- Unless .........................................................

3.She ‘ll be late if she does not hurry. - Unless ...........................................................................

4.If you doesn’t sneeze, he won’t know that we are there.

- Unless......................................................................................................................................

5.If she does her hair differently, she will look quite nice.

- Unless ...........................................................................................................................................

c.Make conditional sentences according to the fact provided (type 1)

1.Keep silent or you wake the baby.- ..............................................................................................

2.Go right now or you’ll be late for the train.- ..............................................................................

3.Be calm or you’ll make a wrong decision.- ................................................................................

4.Practice speaking English regularly or you will not pass this entrance exam.

- ......................................................................................................................................................

5.Turn down the gas or the rice will burn. -....................................................................................

I.     Choose the sentences that have the same meaning with the given sentences.
 

96.     Unless he takes these pills, he won’t be better.

A.   If he takes these pills, he won’t be better.

B.  He will be better if he takes these pills.

C.  If he doesn’t take these pills, he will be better.

97.    The last time I visited my grandparents was two years ago.

A.   I used to visit my grandparents every two years.

B.  I haven’t visited my grandparents for two years.

C.  I didn’t visit my grandparents two years ago.

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)