II. Rewrite the sentences, using “If”: 1) Unless you check the car, it will not break down in the middle of the desert.  ____________________________________________________________ 2) Unless it rains, the children will play outside.  ____________________________________________________________ 3) Unless my parents are so tired, they will watch the film on TV.  ____________________________________________________________ 4) Unless she buys a new hard disk, she will lose all data.  ____________________________________________________________ 5) Unless we use the town map, we will get lost.  ____________________________________________________________ 6) Unless Tom eats more salad, he will gain weight.  ____________________________________________________________ 7) Unless the police stop me, I will reach you in time.  ____________________________________________________________ 8) Unless his older brother drives so fast, he will not crash into the other car.  ____________________________________________________________ 9) Unless Fred cheats at the test, his teacher will not phone his father.  ____________________________________________________________ 10) Unless I switch off the radio, I will know about the second goal.  ____________________________________________________________ 11) We will sell the bike for 20 Euros unless Ron repairs it.  ____________________________________________________________ 12) Unless you use a lot of colors, the drawing will be perfect.  ____________________________________________________________ 13) The children won’t happy unless he teaches them English.  ____________________________________________________________ 14) Unless Ireen visits us, we will go out tonight.  ____________________________________________________________

1 câu trả lời

1. If you don't check the car, it will not break down in the middle of the desert.

2. If it doesn't rain, the children will play outside.

3. If my parents aren't so tired, they will watch the film on TV.

4. If she doesn't buy a new hard disk, she will lose all data.

5. If we don't use the town map, we will get lost.

6. If Tom doesn't eat more salad, he will gain weight.

7. If the police don't stop me, I will reach you in time.

8. If his older brother doesn't drive so fast, he will not crash into the other car.

9. If Fred doesn't cheat at the test, his teacher will not phone his father.

10. If I don't switch off the radio, I will know about the second goal.

11. We will sell the bike for 20 Euros if Ron doesn't repair it.

12. If you don't use a lot of colors, the drawing will be perfect.

13. The children won’t happy if he doesn't teach them English.

14. If Ireen doesn't visit us, we will go out tonight. 

- If not = Unless

- Unless + S + V(s/es), S + will/can/may/... + (not) + V(bare)

- Câu điều kiện loại 1: If + HTĐ, S + will/can/may/... + (not) + V(bare)

- Thì HTĐ: 

(+) S + V(s/es)

(-) S + don't/doesn't + V(bare)

- Lưu ý: Mệnh đề chứa "Unless" phải luôn ở dạng khẳng định

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