10. Match the way of forming the plural and the noun.

1. чередование в корне 2. –en 3. –s 4. –es 5. отсутствие изменений

louse, Japanese, ox, fish, series, child, leg, brother, deer, sister, Swiss, dear, tooth, woman, the English, swine, species, dozen

1. f + s 2. v + es 3. both f + s and v + es

half, reef, scarf, roof, wife, leaf, wolf, chief, loaf, hoof, cliff, safe, proof, life, handkerchief, dwarf, shelf, gulf, self

1. –s 2. –es 3. both –s and –es 4. other means

potato, box, tomato, tango, coach, foot, ox, radio, tobacco, porch, echo, peach, pro, bee, kimono, taboo, goose, motto, cargo, Eskimo, halo, boot

1. y + s 2. i + es 3. other means

day, key, sky, passer-by, lady, Gatsby, ski, valley, lily, Kennedy, stand-by, die, Kitty, cry, Germany, Johnnie, ray

1. i 2. ae 3. ices 4. s 5. es 6. a 7. other means

phenomenon, genius, basis, datum, analysis, formula, appendix, criterion, antenna, crisis, index, memorandum, thesis, nucleus, appendicitis, diagnosis

1. devoiced consonant + s 2. voiced consonant + z

month, breath, mouth, death, bath, cloth, path, youth, myth, birth

1.чередование звуков в первой части слова 2.чередование звуков во второй части слова 3. прибавление суффикса после первой части слова 4. прибавление суффикса после второй части слова 5. изменения по числу в обеих частях слова

mouthful, woman-doctor, merry-go-round, passer-by, boy-scout, commander-in-chief, lily-of-the-valley, pick-up, daughter-in-law, on-looker, grandfather, mailman, grown-up, forget-me-not, assistant professor

11. Translate into Russian.

A 1. boxes 2. bushes 3. forget-me-nots 4. mice 5. handfuls 6. loaves 7. chiefs 8. geese 9. mailmen 10. politicians 12. the English 13. English 14. cliffs 15. commanders-in-chief 16. cloths 17. dwarves 18. slices 19. baths 20. lumps

21. geniuses 22. hooves 23. kerchiefs 24. dwarfs 25. louse 26. lice 27. merry-go-rounds 28. oxen 29. proofs 30. pros 31. scarves 32. men-servants 33. thieves 34. beauties 35. the Kennedys 36. M.P.s 37. swine 38. deer 39. means 40. species

B 1. athletics 2. politics 3. news 4. measles 5. tactics 6. draughts 7. phonetics

8. wages 9. glasses 10. pyjamas 11. clothes 12. customs 13. contents 14. expenses 15. goods 16. sights 17. scales 18. scissors 19. suburbs 20. trousers

21. police 22. cattle 23. poultry 24. fruit 25. yeast 26. cream 27. money 28. courage 29. knowledge 30. furniture 31. joy 32. luggage 33. phenomena 34. formulae 35. bacteria 36. cacti 37. curricula 38. criteria 39. diagnoses 40. data

12. Form the plural where possible.

1. man 2. child 3. woman 4. tooth 5. foot 6. deer 7. sister-in-law 8. woman-pilot 9. loaf 10. goose

11. mouse 12. match 13. shelf 14. handkerchief 15. mouth 16. ski 17. forget-me-not 18. bath 19. sky 20. antenna

21. cactus 22. editor-in-chief 23. datum 24. crisis 25. criterion 26. Vietnamese 27. species 28. grown-up 29. passer-by 30. breakdown

31. man-servant 32. furniture 33. beauty 34. sweet 35. fruit 36. success 37. salary 38. person 39. goods 40. fish

41. ox 42. cage 43. soap 44. merry-go-round 45. mother-in-law 46. Penny 47. people 48. crisis 49. phenomenon 50. roof

*13. Give the singular.

A data, species, jeans, trousers, criteria, stairs, the English, wages, pence, teeth

B curricula, means, news, advice, aircraft, cacti, phenomena, crises, geese, clothes