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hokage12012001
2 năm trước
Cho 4,05 gam một kim loại B hoá trị lll tác dụng vừa đủ với 200ml dung dịch axit HCl thì thu được 5040ml khí H2 a xác định kim loại B b Tính nồng độ mol của axít đã dùng c tín nồng độ của dung dịch sau phản ứng ( coi thể tích dung dịch thay đổi không đáng kể)
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I. Choose the word whose underlined part is pronounced differently from that of the others in each group 1. A. really B. hear C. clear D. bear 2. A. square B. stare C. are D. dare 3. A. vegetarian B. librarian C. various D. nation 4. A. beer B. cheer C. beehive D. engineer 5. A. read B. wear C. speak D. beat II. Choose the word whose main stressed syllable is placed differently from that of the others in each group. 6. A. popular B. population C. volleyball D. basketball 7. A. yoga B. music C. relax D. hobby 8. A. historical B. interest C. badminton D. favourite 9. A. sporty B. indoor C. outdoor D. compete 10. A. aerobics B. humorous C. practise D. separate III. Choose the best answer complete each of the following sentences. 11. Pele won three World Cup and _________ 1281 goals in his 22 years career. A. scored B. scoring C. score D. to score 12. My father likes watching motor ________________ on TV. A. race B. riding C. racing D. driving 13. Miss Hang teaches ________________ English at school. A. us B. we C. our D. ours 14. We often ______________ to keep fit and stay healthy. A. did karate B. do morning exercise C. play video game D. does yoga 15. I am not so interested in Maths as ________________ A. him is B. she is C. her is D. his 16. Students in my class take part _______ a lot of activities after school? A. at B. on C. to D. in 17. You will need a good ______ to play tennis. A. racket B. shuttlecock C. rope D. ball 18. We should use _____ to protect your eyes when you go swimming. A. clothes B. hat C. sunglasses D. goggles 19. There are two main kinds of sport: team sports and _______________. A. Private sports C. personal sports C. individual sports D. team-work sports 20. A person who plays football is a _______. A. soccer B. football player C. sport player D. gamer IV. Read the following text and decide which answer best fits each numbered blank. SOCCER – WORLD CUP 2010 Soccer is a very (21) ________ sport in many countries. The World Cup is held every four years. Thirty-two teams from around the world compete in this (22) ______. In 2010, the world Cup was played in South Africa from June 26 to July 10. The game were watched on television by (23) _______ of people around the world. Spain (24) _________ this World Cup. They (25) _______ the Netherlands in the final game by a score of 1 to 0. The next World Cup was in 2014 and it was played in Brazil. 21. A. unpopular B. popular C. popularity D. unpopularity 22. A. tour B. tourist C. tour guide D. tournament 23. A. million B. billion C. millions D. thousand 24. A. won B. win C. wins D. winning 25. A. beats B. beated C. beating D. beat

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