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apanman1532
2 năm trước
Ở đậu Hà Lan (2n = 14) một tế bào sinh dưỡng tiến hành nguyên phân 3 lần liên tiếp. Tính: a. Số tế bào con và số NST được tạo ra sau nguyên phân. b. Số NST môi trường cung cấp cho quá trình nguyên phân trên. c. Tính số nhiễm sắc thể, tâm động và cromatit qua các kì của nguyên phân.
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Give the correct form of the verbs 1. We (have) .......a party next Sunday. Would you like.......(come)? 2. While my sister and I (watch)........... a movie on TV last night, our uncle in the USA (phone)................. 3. As soon as her mother (come).......... home, all her friends call)........her 4. Yesterday, I (lie)......... in the beach when the phone (ring)...... 5. We .........( have ) four tests since last month 6. I ( meet ) ...... many people since I ( come ) ....... Here in June . 7. At eight o’ clock last night , I ( study ) ......... 8. He always ( eat ) ........... sandwich for lunch . 9. Nam (arrive ) ...........here two days ago . 10.Nam ( be ) ......... Here since Match. 11.Nam ( go ) ............... to the library twice a week . 12.The students ( paint ) .............. the chairs at the moment . 13.She (teach) ............English in this school for ten years. 14.She (cook).........dinner when her husband arrived home. 15.He shows the people how (protect).........the environment. 16.Last year the weather (be).........too hot to sunbathe at noon. 17.She (do).........her homework at 7 o’clock last night. 18.He started (go).........to school when he was 6 19.They (do)_______ it for you tomorrow. 20. My father (call)________ you in 5 minutes. 21.We believe that she (recover)________ from her illness soon. 22. I promise I (return)___________ school on time. 23. If it rains, he (stay)____________ at home. 24. You (take)__________ me to the zoo this weekend? 25. I think he (not come)____________ back his hometown. 26.Yesterday, Hoa and her aunt (go)........ to the market. 27. I would like (tell).........you about my family. 28. Vegetables often (have)............ dirt from the farm on them. 29. Be careful! The children (cross)............ the street. 30. I (be) ............ 14 years old next week, and so will she. 31. My father (not watch) ...... TV last night. He (read) ............newspapers. 32. You should (add) ............ a little salt to the spinach when you boil it. 33.When......... you (buy) ............ this dress? -Two days ago. II.PASSIVE VOICE 1* Simple present: Change into passive form. 1.People speak English all over the world. - English ...................................................... 2. They will bring the umbrellas on rainy days. - The umbrellas....................... 3. Nga can play tennis in the evening. - Tennis................................. 4. The company employs two hundred people. - Two hundred people.............................. 5. Most of the students can answer the questions. - The questions ............................................. 6. Somebody will clean the room later. - The room ............................................. 7. The workers clean the streets every day. - The streets ........................................... 8. Peter must learn Maths more. - Maths ........................................... 9. People play football all over the world. - Football .................................... 10. Lan will invite her friends to her party. - Her friends ............................. 11. We can wear jeans on the picnic. - Jeans ................................. 12. They use the room for meeting. - The room .............................. III. Although, Despite, In spite of Complete the sentences with although/ in spite of/ because/ because of 1. Although it rained a lot, we enjoyed our holiday. 2. a) ............................. all our careful plans, a lot of things went wrong. b)..................... we'd phoned everything carefully, a lot of things went wrong. 3. a) I went home early .................... I was feeling unwell. b) I went to work the next day.................... I was still feeling unwell. 4. a) She only accepted the job .................................... the salary, which was very high. b) She accepted the job ................................ the salary, which was rather low. 5. a) I managed to get to sleep .............................. there was a lot of noise. b)I couldn't get to sleep .......................................... the noise. Make one sentence from two. Use the word(s) in brackets in your sentences. 1. I couldn't sleep. I was very tired. (Despite) I couldn't sleep despite being vey tired. 2. They have very little money. They are happy.(In spite of ) ............................................................... 3. My foot was injured. I managed to walk to the nearest village. ( Although) ....................................................... 4. I enjoyed the film. The story was silly. (In spite of ) .............................................................. 5. We live in the same street. We hardly ever see each other. (Despite) .................................................. 6. I got very wet in the rain. I was only out for five minutes. (Even though ) ...............................................

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