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thuyhanghb88
2 năm trước
Cho hình thoi ABCD có cạnh AB cố định. Gọi O là trung điểm của AB, P là giao điểm của CO và BD. C/m: P chạy trên một đường tròn khi C, D thay đổi.
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Hộ nhaaa, hạn nộp của mình là 9h05 ạ, hứa trả đủ Exercise 1: Put the verbs in brackets into the correct forms. 1. If I (have)...................time, I will write to him. 2. If it’s cold, I (get)........................a heavier coat. 3. What will you do you (have)......................a holiday? 4. If I can go tomorrow, I (let)........................you know. 5. If I meet Helen, I (give)........................her your message. 6. If flowers don’t get any water, they (die)............................. 7. I (get).....................a headache, I will take some aspirins. 8. I will not go to the party it (rain)......................... 9. She will buy the car it (not be).......................too expensive. 10. Everything (be).......................if you tell the truth. 11. he (come)........................., I’ll be back in a few minutes. Question III. Rewrite the following sentences without changing their original meaning. 1. If you study very hard, you will be better at English next term. => As………………………………………………………………………….. => Should you…………………………………………………………………………….. 2.. If you drink more water every day, you will not be tired. => Providing…………………………………………………………………….. => Should…………………………………………………………………………………. 3. If you don’t throw rubbish onto the water, water will not be polluted. => If you should …………………………………………………………………………………. => Should you……………………………………………………………………………. 4. If you don’t go out at rush hour, you will not get into traffic jams => If you should………………………………………………………………………………….. 5. If we keep the environment clean, we will live long. => If we should…………………………………………………………………………………… 6. If you happen to meet Mr. Mathew, can you tell him to call me? => So………………………………………………………………….. => If you should……………………………………………………………………………. 7. If you lose in the forest, you must go along the river to find the way out. => Should………………………………………………………………………………….. => Provided………………………………………………………………………………… 1. If it is warm tomorrow, we will have a picnic Should ............................................................................................... 2. If your cold becomes worse, you must see the doctor Should ............................................................................................... 3. Take part in the English club and your speaking skill will be improved Should ............................................................................................... 4. Keep your feet dry or you will have a cold. Should ............................................................................................... 5. If you want to go out tonight, make up your room. Should ............................................................................................... 6. I'll be very angry if he makes more mistakes. Should ............................................................................................... 7. If you leave your house unlocked, It will be broken into Should ............................................................................................... 8. If she forget her book, she can share with me. Should ............................................................................................... 9. Turn down the radio or you will wake the baby up Should ............................................................................................... 10. If you are asked to sing an english song, what will you do? Should ...............................................................................................

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