CONDITIONAL SENTENCES

<span class='text_page_counter'>(1)</span>CONDITIONAL SENTENCES ( Câu điều kiện) Câu điều kiện có hai mệnh đề: mệnh đề chính (main clause) và mệnh đề phụ (if clause). Muốn nhấn mạnh mệnh đề nào ta đặt nó ở đầu câu. Có 3 loại câu điều kiện cơ bản sau: 1.Future possible (tương lai có thể xãy ra) còn gọi là câu điều kiện loại I *.Form: ((công thức). If -clause. Main clause. Simple present Simple future If + S + V / V (-s/es) , S + will + V *Chú í: - Ở mệnh đề chính có thể dùng can, may, must thay cho will - Ở mệnh đề chính có thể dùng dạng mệnh lệnh. *Ví dụ nè: If you learn hard, you will pass any examination. Lan can speak English fluently if she practices every day Come to visit me if you have spare time. 2.Present unreal (hiện tại không thật) còn gọi là câu điều kiện loại II * Form: (công thức). If -clause. Main clause. Simple past If + S + V-2 / V-ed (were cho tất cả các ngôi ). Future in past , S + would + V. Chú í: - có thể dùng might, could thay cho would VD: I would tell you the answer if I knew it myself If she had time, she could go to the movie now. ( trên thực tế, hiện giờ cô ta bận và cô ta không đi được)  Khi dùng câu điều kiện loại 2 này, ta phải hiểu ý trái lại. 3.Past unreal (quá khứ không thật) còn gọi là câu điều kiện loại III * Form: (công thức). If -clause. Main clause. Past perfect Future in past If + S + had + V-3 / V-ed , S + would have + V-3 / V-ed Chú í: - có thể dùng might, could thay cho would tùy theo nghĩa của câu. VD:. I vould have spoken to Nam if I had seen him yesterday. (trên thực tế, hôm qua tôi không thấy Nam và tôi đã không có nói. chuyện) If he had tried hard last time, he could have succeeded ( trên thực tế, lần qua anh ta không cố gắng và không thành công)  Khi dùng câu điều kiện loại 3 này, ta phải hiểu ý trái lại.  Xem kĩ nhé: unless = if…….. not ( nếu…….không) Unless you finish your homework, I will punish you. (nếu bạn không hoàn thành bài tập của bạn, tôi sẽ phạt bạn đấy) I. Correct the verbs 1.You will be ill if you (eat) ___________________ so much. 2. I ( go) ___________________if I had known the fact. 3. If he (be) ___________________ my friend, I would be very glad. 4. If she were older, she (have) ___________________ more sense. 5. If the dog had not woken us, we ( never hear ) ______________ the burglar. 6. He will be happy if he (study) ___________________ overseas. 7. We (enjoy) ___________________the play better if it had not been so long. 8. I’m sure Mary will do well if she (enter) ___________________ college. 9. They would do it if they (can) ___________________ 10. If the children (be) ___________________, they can stay up late.. II. Circle the best answer. 1. If you. not here, where would you like to be ? A. was B. were C. be D. are 2. We will be unhappy if you come. A. haven’t B. don’t D. didn’t 3. If you somewhere else ,where would you like to be ?. C. hav.

<span class='text_page_counter'>(2)</span> A. have been. B. can be C. are D. could be 4. You must hurry .If you , you’ll be late . A. won’t B. do C. aren’t D. don’t 5. If I _____ a lottery , I __________ a new house . A. win / should build B . won / should build C. win / should have built D. won/ should have built 6. What you do if you have a lot of money? A. have B. will C. would D. did 7. If you this car , you would have to pay for it yourself. A. had bought B. have bought C. bought D. buy 8. What will you do if you the final exam? A. pass B. passed C. will pass D. passes 9. If you want to attend the course, you the coming written examination . A. will pass B. passed C. can pass D. must pass 10.They will not _______ over the job even if they’ve been able to. A. allow B. receive C. agree to take D. agree to 11. If I were you , I that camera. A. haven’t bought B. wouldn’t buy C. won’t buy D. didn’t buy 12. you work harder , you won’t be able to pass the exam. A. Unless B. If C. when D. As 13. If it rain , we’ll have the party outside. A. didn’t B. doesn’t C. won’t D. wouldn’t. 14. If I C. am not 15. If I. here, I’d like to be in London. A. haven’t been D.hadn’t been a bird, I would be able to fly. A. were. 16. Unless you understand, I. B. weren. B. a C.. D. are explain it to you again. A. am. B. would. C. w D. was. 17. You should stay home if it. . A. rain. B. rained D. raining 18. You’ll burn yourself if you aren’t. C. rain .. A. good B. caref C. kind D. working hard 19. If anybody question, please ask me after class. A. have B. have the C. has D. has a 20. If I somebody else, I’d like to be the teacher. A. must be B. could be C. would be D. became 21. If people stop using dynamite for fishing, a lot of sea creatures ___ A. will be well preserve B. will be well preserving C. will preserve D. will be well preserved 22. Liz would come to see you if she your address. A. has B. having C. hav D. had 23.If we______hard, we’ll make this beach a clean and beautiful place again..

<span class='text_page_counter'>(3)</span> A. will work D. work. B. worked. C.. have worked *24. “ It’s beginning to rain .” “ , we won’t be able to finish the ball game “ A. Unless it stops B. Should it stop C. If it stops D. If it didn’t stop *25. Yoko comes in half an hour, I will go alone. A. If B. Because C. When D. Unless 26. “ My boss made me work overtime again .” “ If I were you, I my job” A. quit B. would quit C. will quit D. must quit 27. If I were you, I not do that. A. would B. will C. may D. should 28. If the weather fine, we will go on a camping trip. A. be B. is C. was D. will 29. If I ____the day-off tomorrow, I would go on a trip to the mountains. A. can have B. will have C. have D. had Hãy giữ cẩn thận vì còn hữu dụng cho những năm sau đấy các con aï !.

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