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giaodo72
1 năm trước
Xét một nhóm 200 tế bào mang cặp NST Aa giảm phân. Xác định tỉ lệ các giao tử thu được trong các TH sau: a. Các tế bào giảm phân bình thường. b. 20 tế bào cặp Aa không phân li trong giảm phân I. c. 40 tế bào cặp Aa phân li bình thường trong GP1, ở GP2 các tế bào con mang NST aa không phân li, các tế bào còn lại mang NST AA phân li bình thường.
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Câu 1: A. sugar B. typical C. complain D. topic Câu 2: A. item B. above C. teacher D. worker Câu 3: A. do B. go C. so D. no Câu 4 A. new B. few C. grew D. nephew Câu 5 A. mad B. cat C. had D. late Câu 6. This is the first time I………..here. A. am B. have been C. was D. be Câu 7. She was ……..angry that she couldn’t speak. A. very angry B. too angry C. so angry D. such angry Câu 8. Hoa ………..making speeches. A. is loving B. has been loving C. loves D. was loving Câu 9. She was proud…………finishing the work in such a short time. A. about B. of C. on D. over Câu 10. She is only six, and ……….that age she can’t know much. A. at B. in C. with D. about Câu 11. If I…….you, I wouldn’t talk to him any more. A. be B. am C. was D. were Câu 12. I am looking forward to…….next Saturday. A. see you B. seeing C. seen you D. have seen you Câu 13. I spoke to her …….the telephone yesterday. A. on B. in C. by D. through Câu 14. Who was the first man to……on the Moon? A. start up B. board C. set foot D. climb Câu 15. It’s real ……..It’s cheaper than usual. A. bargain B. deal C. business D. sale Câu 16. Don’t write your exercises…….pencil. A. with B. in C. by D. from Câu 17. ……..me to Hanoi with you? A. Do you take B. Are you take C. You take D. Will you take Câu 18. Nam……go fishing with his father when he was young. A. used to B. is use to C. has used to D. was used to Câu 19. The news……bad last night. A. were B. was C. has D. have been Câu 20. Le would rather…….early than late. A. to arriving B. arriving C. arrive D. arrived Read and choose th best answer to fill in the blanks. I. What is money? The pound, the dollar or the franc are actually just like a gram or a kilometre. The difference is that you can exchange money for something….(21)….A five pound note may buy a book, a big bag of sweets, or a …..(22)……of cinema tickets. But the note itself is only a printed…(23)…..of paper which costs almost nothing to make. Thousands of years…..(24)…., people didn’t have money as we know….(25)….There were also no banks or even shops. 21. A. other B. else C. another D. apart 22. A. couple B. double C. few D. several 23. A. slice B. part C. side D. piece 24. A. since B. past C. before D. ago 25. A. them B. it C. some D. that II. One summer afternoon Jean and Michelle Duboit, an elderly couple, visited their daughter at her home in Lille, France. A few minutes before six o’clock, the Duboits decided to leave. They said goodbye to the daughter, walked to their car, and got in. they expected a quiet, safe ride home. The ride, however, was anything but quiet and safe. Mr. Duboit was about to start the car when a gunman jumped up from the back seat. He held the gun to Mr. Duboit’s head. “ Drive me to Paris!” he demanded. “All right,” said Mr. Duboit. “ I’ll drive you anywhere you want to go. But first let my wife out of the car. She can’t stand long journeys, you know.” Câu 26: What was the right home like? Câu 27: What do you think a gunman is? Câu 28: What did the gunman want Mr. Duboit to do? Câu 29: What did Mr. Duboit do at the gunman’s command? Câu 30: What did Mr. Duboit request the gunman? Dùng các từ gợi ý để đặt thành các câu hoàn chỉnh Câu 31: We / talk /him / when /he / come /in / last night. Câu 32: You/ interested/ listen/ pop music/ classical music ? Câu 33: The population / Quang Ninh/ be/ over one million people/ now. Câu 34: There/ be/ many/ famous/ hotel/ restaurant/ Ha Long city. Câu 35: Quang Ninh/ be/ province/ which/ rich/ coal.

Choose the best answer. (A , B, C or D ) 15. It is hard to explain …..the phone. A. in B. at C. on D. of 16. Tet is the most important festival in Viet Nam;………….,most Viet Nam return home for Tet. A. but B. therefore C. however D. otherwise 17.We don’t have many carnivals in Viet Nam; …………….we have many traditional festivals. A. also B. But C. moreover D. nevertheless 18.Bin loves ……..Trung cakes A. making B. makeing C. make D. made 19. We want to reduce pollution but we also want to enjoy convenience that .............science and technology supply us. A. a B. an C. the D. no article 20. The cost of …….is very high in the big city. A. live B. lived C. lives D. living 21.I stopped ……my book and went to bed A. to read B. reading C. read D. reads 22.Yoga helps us learn ……..to co-ordinate breathing and movement. A. What B. When C. Why D. How 23………should children do yoga too? A. Why B. When C. What D. How 24. Don’t worry. It is …….to travel to that village even at night. A. safe B. unsafe C. difficult D. inconvenience 25. We have to …..our shoes when we go inside a pagoda. A. take off B. give off C. turn off D. put on 26. Would you like to go …..a walk ….. the park this afternoon. A. to/at B. for/at D. to/in D. for /in 27.The bus was very ……this morning. We can’t go to the church. A. crowed B. crowded C. full D. busy

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