I. Choose the words whose underlined part is pronounced differently from that of the others in each group UNIT 1: HOBBIES 1. A. bird B. girl C. first D. sister 2. A. burn B. sun C. hurt D. turn 3. A. nurse B. picture C. surf D. return 4. A. neighbor B. favorite C. culture D. tourist 5. A. hobby B. hour C. hotel D. hot 6. A. prefer B. better C. teacher D. worker 7. A. bear B. hear C. dear D. near 8. A. collect B. concern C. concert D. combine 9. A. absent B. government C. dependent D. enjoy 10. A. future B. return C. picture D. culture 11. A. exciting B. excellent C. experience D. expensive 12. A. hobby B. cycle C. bye D. why 13. A. pottery B. collect C. melody D. monopoly 14. A. bird-watching B. children C. school D. challenge 15. A. future B. return C. picture D. culture 16. A. piano B. fish C. like D. badminton 17. A. arrange B. game C. make D. skate 18. A. mother B. some C. cold D. come 19. A. absent B. government C. dependent D. enjoy 20. A. telephone B. post office C. directory D. moment 21. A. number B. Sunday C. excuse D. fun 22. A. second B. personal C. tomorrow D. movie 23. A. machine B. kitchen C. teacher D. children 24. A. city B. many C. country D. cry 25. A. book B. room C. stool D. school 26. A. soon B. see C. sure D. sorry 27. A. amazing B. orange C. table D. favorite 28. A. country B. journalist C. younger D. countryside 29. A. game B. arrange C. skate D. cake 30. A. hobby B. doll C. collect D. for 31. A. difficult B. unusual C. uncle D. result 32. A. piano B. fish C. like D. badminton 33. A. rest B. help C. garden D. identify 34. A. heard B. pearl C. heart D. earth 35. A. button B. circus C. suggest D. future 36. A. sofa B. away C. banana D. occasion 37. A. light B. fine C. knife D. principle 38. A. farm B. card C. bare D. marvelous 39. A. both B. bottle C. Scotland D. cotton 40. A. park B. farm C. warm D. marmalade 41. A. nature B. pure C. picture D. culture 42. A. faithful B. failure C. fairly D. painted 43. A. country B. cover C. economical D. ceiling 44. A. new B. sew C. few D. nephew 45. A. with B. library C. willing D. if 46. A. ask B. angry C. manager D. damage 47. A. notebook B. hoping C. cock D. potato 48. A. engineer B. verb C. deer D. merely 49. A. theory B. therefore C. neither D. weather 50. A. shoot B. mood C. poor D. smooth