50 Bài tập Unless cực hay (có lời giải)

Bài viết 50 Bài tập Unless cực hay có lời giải gồm đầy đủ lý thuyết trọng tâm về Unless và trên 50 bài tập về Unless chọn lọc, có đáp án chi tiết giúp bạn nắm vững cách sử dụng của Unless.

50 Bài tập Unless cực hay (có lời giải)

PHẦN I. LÝ THUYẾT

Unless = If….not (Nếu ………không, trừ phi)

Ex: If you don’t study harder, you will fail in the entrance examination

→ Unless you study harder, you will fail in the entrance examination

Chú ý: Khi đổi một câu điều kiện với từ nối IF sang UNLESS, lưu ý không được đổi sang thể phủ định khi dùng UNLESS (unless….not) mà phải đổi mệnh đề chính sang thể ngược lại.

Ex: If I have time, I’ll help you

→ Unless I have time, I won’t help you

PHẦN II. BÀI TẬP ÁP DỤNG

Task 1. Viết lại câu sao cho nghĩa không đổi

1. If you don't study harder, you 'll get bad marks.

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

2. Unless this man is a driver, he can’t help you move by car.

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

3. If he doesn't practice writing every day, he can't improve his writing skill.

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

4. Unless you return this book to the library today, you’ll have to pay a fine.

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

5. Unless you go out more often, you might fall ill.

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

Hiển thị đáp án

1. Unless you study harder, you 'll get bad marks.

2. If this man is not a driver, he can’t help you move by car.

3. Unless he practices writing every day, he can't improve his writing skill.

4. If you don’t return this book to the library today, you’ll have to pay a fine.

5. If you go out more often, you might fall ill.

Task 2. Viết lại câu sao cho nghĩa không đổi

1. Unless they were absent now, they would meet the head master.

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

2. Unless he cleaned up the car now, his boss could ask him to do this.

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

3. If I didn’t know the number, I would not ring her up.

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

4. If Peter didn’t study hard, he could not get good marks.

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

5. If my sister didn’t have a terrible headache she wouldn’t be absent from her class.

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

Hiển thị đáp án

1. If they were not absent now, they would meet the head master.

2. If he didn’t clean up the car now, his boss could ask him to do this.

3. Unless I knew the number, I would not ring her up.

4. Unless Peter studied hard, he could not get good marks.

5. Unless my sister had a terrible headache she wouldn’t be absent from her class.

Task 3. Viết lại câu sao cho nghĩa không đổi

1. Unless you had stayed at home yesterday, you wouldn’t have enjoyed a delicious meal.

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

2. Unless he had been busy last night, he could have met his friends.

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

3. If she hadn’t missed the bus, she wouldn’t have been late.

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

4. If he hadn’t been angry, he would have say something.

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

5. If he hadn’t had time, he wouldn’t have read this novel.

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

Hiển thị đáp án

1. If you had stayed at home yesterday, you wouldn’t have enjoyed a delicious meal.

2. If he had not been busy last night, he could have met his friends.

3. Unless she had missed the bus, she wouldn’t have been late.

4. Unless he had been angry, he would have say something.

5. Unless he had had time, he wouldn’t have read this novel.

Task 4. Rewrite each of the following sentences with the given words in such a way that it means the same as the sentence printed above it.

1. He spent all his money. He even borrowed some from me.

=> Not only_______________________________________________________

2. He had hardly left the office when the telephone rang.

=> No sooner _____________________________________________________

3. I had only just put the phone down when the boss rang back.

=> Hardly _______________________________________________________

4. He didn’t finish his work until the bell rang.

=> Not until ______________________________________________________

5. We only began to see the symptoms of the disease after several months.

=> Only _________________________________________________________

Hiển thị đáp án

1. Not only did he spend all his money but she also borrowed some from me.

2. No sooner had I left the office than the phone rang.

3. Hardly had I put the phone down when the boss rang back.

4. Not until the bell rang did he finish his work.

5. Only after several months did we begin to see the symptoms of the disease.

Bài tập bổ sung

Exercise 1. Choose the correct answer.

1. Let’s go for a walk  – ________ you look too tired.

A. unless                                                B. if

2. He will take the job ________ the pay is too low.

A. unless                                                B. if

3. Lan will be back tomorrow ________ there is a plane strike.

A. unless                                                B. if

4. We will be surprised ________ he doesn’t have an accident soon.

A. unless                                                B. if

5. I think he would look prettier ________ he didn’t wear so much make-up.

A. unless                                                B. if

6. I am going to school this afternoon, ________ it rains.

A. unless                                                B. if

7. ________ you don’t stop drink milk tea, you will gain weight fast

A. unless                                                B. if

8. ________ he starts now, he will not reach there in time.

A. unless                                                B. if

9. ________ she was rich, she would spend all my time traveling.

A. unless                                                B. if

10. ________ we have enough time tomorrow, we will come and see you.

A. unless                                                B. if

Đáp án:

1. B

2. A

3. B

4. B

5. A

6. A

7. A

8. B

9. A

10. A

Exercise 2. Rewrite the sentences.

1. If you don’t fill in enough information, your file will be removed.

→ Unless _______________________________________.

2. If she doesn’t try her best, she will fail this contest.

→ Unless _______________________________________.

3. If my brother didn’t have a stomach, he wouldn’t be absent from the workshop.

→ Unless _______________________________________.

4. If you don’t return money to the missing person, I’ll have to report it to the police.

→ Unless _______________________________________.

5. Unless you read books regularly, you cannot gain useful knowledge.

→ Unless _______________________________________.

Đáp án:

1. Unless you fill in enough information, your file will be removed.

2. Unless she tries her best, she will fail this contest.

3. Unless my brother had a stomach, he wouldn’t be absent from the workshop.

4. Unless you return money to the missing person, I’ll have to report it to the police.

5. If you do not read books regularly, you cannot gain useful knowledge.

Exercise 3. Choose the correct answer.

1. She will refuse this job unless/if the salary is high.

2. Tracy will get a bad result if/unless she practises frequently. 

3. Unless/If you don’t hurry up, you will miss the final train to home.

4. You won’t know what you can do if/unless you don’t try.

5. She would have come in time if/unless she had had an accident.

Đáp án:

1. unless

2. unless

3. If

4. if

5. unless

Exercise 4. Fill in the blanks with [if/ unless].

1. _______ you help me, I’ll be unable to do it.

2. _______ I meet him, I’ll tell him the whole truth.

3. You won’t get well _______ you stop smoking.

4. _______ you exercise regularly, you won’t be able to lose some weight.

5. _______ you exercise regularly, you’ll lose some weight.

6. The teacher will be furious _______ you don’t do the homework.

7. You can’t go on vacation _______ you don’t save some money.

8. You will feel cold _______ you wear a warm jacket.

9. We’ll arrive on time _______ we hurry.

10. Don’t call me _______ it’s an emergency.

Đáp án:

1. Unless	2. If	3. unless	4. Unless	5. If
6. if	7. if	8. unless	9. if	10. unless

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