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vanly10si
2 năm trước
1)Đốt cháy hidrocacbon thu được nH2O>nCO2 ->hidrocacbon là ankan 2)Đốt cháy hidrocacbon thu được nH2O=nCO2->hidrocacbon có độ bất bão hòa bằng 1 3)Đốt cháy ankin thì thu được nH2O<nCO2 và n(ankin)=nCO2-nH2O 4)Tất cả các ankin đều có thể tham gia pứ thế bởi AgNO3/NH3 5)Cao su là vật liệu polime có tính đàn hồi 6)Toluen và stiren đều làm mất màu dd thuốc tím ở đk thường Số phát biểu đúng là câu nào?
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I. Choose the word that has the underlined part pronounced differently: 1.A. archery B.create C.skating D.favourite 2. A. practised B. skipped C. looked D. called II. Choose the word that has the main stressed different from others: 3.A. favourite B. equipment C. practise D. swimming 4. A. individual B. badminton C. volleyball D. countryside III.Circle the letter A, B,C or D to indicate the underlined part that needs correction in each of the following questions: 5. My family went to fish in the countryside last Sunday. A B C D 6. Did your classmates and you played a match of basketball in the schoolyard A B C yesterday? D 7. Don’t watch TV too much. Watch TV a lot will harm (gây hại) your A B C D eyes. IV. Circle the letter A,B, C or D to indicate the correct answer to each of the following question: 8.We ........................English to our friend last night. A. spoke B. speak C. speaked D. spoken 9. I often go cycling with my father .......... the weekend. A. on B. at C. in D. for 10. Mary likes ..................... chess every Saturday. A. play B. plays C. playing D. played 11. Trung often ................ swimming on hot days. A. go B. goes C. went D. is going 12. I ........................ what teacher ........................ in the last lesson. A. didn’t understood/ said B. didn’t understand/ said C. understand/ say D. understood/ say 13. The people in the café....................................friendly when I was there yesterday. A.are B. is C. was D. were 14..........................an umbrella with you. It’s raining. A.Take B. Don’t take C. You should to take D. You need taking 15. Sports is good....................... your health. A.on B. for C. in D. at V.Read the passage and choose the correct word A, B, C or D for each question below: My name is Trung. I’m a handsome and hard student in class 6A2. Badminton is my favourite sport. When a player plays against another one, it is an individual sport.When two players play against another two, it is a team sport. A badminton match lasts until one player or one team wins two out of three rounds, or it depends on how much time the players have for the game. All we need is a shuttlecock and rackets. I love badminton because it is very easy and simple. Many of my classmates play badminton, too. 16.What is the main idea (ý chính) of the passage? .......................... A. Trung’s family B. Trung’s favourite sport C. My favourtie sport D. Trung’s school 17. Badminton is an individual sport when ........................ A. a player plays against another one. B. a player plays another team. C. two players play another two. D. A team plays another team. 18. We need at least (ít nhất) ............... players, badminton is a team sport. A. two B. three C. four D. one 19. What do we need to play badminton? A. shoes and skis B. a ball and baskets C. a ball and nets D. a shuttlecock and rackets 20. Trung loves badminton because ........................... A. it’s interesting and exciting B. it’s complicated (phức tạp) C. it gives him lots of fun D. it’s not difficult and simple

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