(1)v.-n.动词转化为名词，post-postage mail-mailweigh-weight advise-advice(2)v.-n.-a.动词转化成名词-形容词act-actor / actress-activechange-change-changeable(3) v.-a.-ad.-n.动词转化成形容词，副词，名词fill-fullneed-necessary-necessarilyinterest(v. / n.) interested /interesting(4)n. a. n. a.名词转化为形容词person personal ( 个人的; 私人的)fun funny(5)n. pl. n. pl.名词转化为名词复数gentleman gentlemen human humans（6)a. ad. a. ad.形容词转化为副词possible possibly probable probably(7)a. ad. n.形容词转化为副词，名词true truly truthlucky luckily luck(8)原级比较级最高级far farther / further farthest / furthestlittle less least一、名词变为形容词的方法1. 在名词后面加-y可以变成形容词(尤其是一些与天气有关的名词)。

例如：rain—rainy, cloud—cloudy, wind—windy, snow—snowy, health—healthy, luck—lucky等。

注意：1)如果名词以重读闭音节结尾，且词尾只有一个辅音字母，这时应双写词尾的辅音字母再加-y。

如：sun—sunny, fun—funny等。

2)少数以不发音的e结尾的名词变为形容词时，应去掉e再加-y。

例如：noise—noisy, ice—icy 等。

2. 一些抽象名词在词尾加-ful可以变为形容词。

例如：care—careful, thank—thankful, help—helpful, use—useful, beauty—beautiful等。

3. 一些表示国家的名词可以在词尾加-ese, -ish或-n构成表示国籍、语言的形容词。

例如：China—Chinese, Japan—Japanese, England—English, America—American, India—Indian, Australia —Australian(注意Canada—Canadian)。

4.在名词后加-ous变为形容词。

例如：danger—dangerous等。

5. 在名词后加-ly变为形容词。

例如：friend—friendly, love—lovely等。

6.在名词后加-less构成含有否定意义的形容词。

例如：care—careless(粗心的)，use—useless(无用的)，hope—hopeless(没希望的)，home—homeless(无家可归的)等。

7. 一些以-ence结尾的名词，把ence改为ent变成形容词。

例如：difference—different, silence—silent等。

二、动词变为名词的方法1.词形不变，词性改变。

例如：work, study, water, plant等可以用作动词，也可以用作名词。

2. 一些动词在词尾加上-er或-or之后就变成了表示“某一类人”的名词。

例如：work—worker, teach—teacher, sing —singer, jump—jumper, play—player, learn—learner, visit—visitor, invent—inventor等。

注意：1)以不发音的e结尾的动词，在词尾加-r。

例如：drive—driver, write—writer等。

2)以重读闭音节结尾，且末尾只有一个辅音字母的动词，应双写末尾的辅音字母，再加-er。

例如：run—runner, win —winner，begin—beginner等。

3. 在动词词尾加-ing变成名词(方法与动词变为现在分词的方法相同)。

例如：meet—meeting, build—building, wait —waiting, wash—washing, swim—swimming, shop—shopping, begin—beginning等。

三、形容词变为副词的方法一般在形容词的词尾加-ly可以变成副词。

例如：quick—quickly, slow—slowly, loud—loudly, sudden—suddenly 等。

但是，以下几点值得注意：1. 一些以“辅音字母+y”结尾的形容词，要把y改为i再加-ly。

例如：happy—happily, angry—angrily, lucky—luckily, heavy—heavily, noisy—noisily 等。

2. 有些以-ble或-le结尾的形容词，去掉e加-y。

例如：possible—possibly, terrible—terribly等。

3. 少数以e结尾的形容词，要去掉e再加-ly。

例如：true—truly等。

但绝大多数以e结尾的形容词仍然直接加-ly。

例如：polite—politely, wide—widely等。

4. 以-l结尾的形容词变为副词时仍然要在词尾加-ly，而不是只加-y。

除非是以-ll结尾的才在词尾只加-y。

例如：usual —usually, careful—carefully, useful—usefully, full—fully等。

用所给单词的适当形式填空：1. Li Ping is good at _________. ( draw)2. Alice prefers to do some__________. (shop)3. Mary is my _______ sister and she is 2 years _________ than I. (old)4. Excuse me, what is the ____________ of this word? (mean)5. All the __________ of the game will be given a nice present tomorrow. ( win)6. The video game machine is so __________ that all of us are _________ in it. (interest)7. We are _________ thankful for all your help.(true) 8. Our life today is much _________than before. (go od) 9. December is the_________ month of a year. (twelve)10. Computers are becoming more and more________ in our life.( use)11. “Don’t play football in the street." The policeman shouted at the children _______. (angry) 12 . Did you enjoy ___________at yesterday's party? (you) 13. What is the __________ of the parcel (post)14. Every morning my grandpa spends half an hour _________ the flowers. (water) 15. Computer s can work out problems far _____________ than human beings. (quick) 16. Mary is the _______ __ of three sisters. (old) 17. The little girl plays piano ___________. (wonder) 18. Who was the __ _________ of the high jump? (win)19. When he was only 3 years old, he started hard ____________ with his father. (train) 20. Now more and more _________ are coming to visit China from other countries.(visit) 21. I found his ____________pen under the table. (lose) 22. Have you received Mary's ___________? (invite) 23. Alice bought 2 hula hoops instead of two ___________of bread. (loaf) 24. We must not only th ink ___________.(we) 25. The boy is sitting in his seat __________. (quiet)26. Today is his ____________ birthday. (eighty) 27. Tom can throw _________ than I (far)28. He started__________ the piano at the age of four. (play)29. Children should do some housework. It is also a way of ___________.(relax) 30. "It is never t oo late to learn" is a Chinese __________.(say)31. Don't believe her. I can _________ say that she did not tell us the __________. (true) 32. It is r aining ____________. You must drive carefully. (heavy)33. My deskmate looks ___________, for he failed in the English test. (happy) 34. The old lady lo oked __________ at me. (angry) 35. Many animals are so ____________ to us. (help)36. We are going to have a __________ about this problem.(discuss) 37. The famous __________ _ can speak 3 languages. (science)38. These artists use real things or men as their models. They draw pictures very _________. (good)39. My daughter looks much____________ than her deskmate. (health) 40. Some ____________ are interested in Chinese food. (Germany) 41. All of you must hand in your ___________ after cla ss. (paper) 42. The weather report says it is _____________. (cloud)43. Of all the boxes, the one in the corner is the ______________. (heavy) 44. All of them are ___ _______ to their new __________. (friend) 45. I am not used to the weather here. It is _________ __. (change) 46. I know these people over there quite ___________. (good ) 47. We want to havea talk with your ______________. (manage) 48. Is it __________to collect stamps? (use)49. The old man likes to live in a ________ place. Now he is sitting there ________. (quiet) 50. Pl ease help ___________ to the cake. (you)用所给单词的适当形式填空1. Li Ping is good at drawing. ( draw)2. Alice prefers to do some shopping. (shop)3. Mary is my elder sister and she is 2 years older than I . (old)4. Excuse me, what is the meaning of this word? (mean)5. All the winners of the game will be given a nice present tomorrow. ( win)6. The video game machine is so interesting that all of us are interested in it. (interest)7. We are tr uly thankful for all your help.(true)8. Our life today is much better than before. (good)9. Decemb er is the twelfth month of a year. (twelve)10. Computers are becoming more and more useful in our life.( use)11. " Don't play football in the street." The policeman shouted at the children angrily. (angry) 12. Did you enjoy yourself at yesterday's party? (you) 13. What is the postage of the parcel? (post) 14. Every morning my grandpa spends half an hour watering the flowers. (water) 15. Computers c an work out problems far more quickly than human beings. (quick) 16. Mary is the oldest of three sisters. (old) 17. The little girl plays piano wonderfully. (wonder) 18. Who was the winner of the h igh jump? (win)19. When he was only 3 years old, he started hard training with his father. (train) 20. Now more and more visitors are coming to visit China from other countries.(visit) 21. I found his lost pen unde r the table. (lose) 22. Have you received Mary's invitation ? (invite)23. Alice bought 2 hula hoops instead of two loaves of bread. (loaf) 24. We must not only think ou rselves.(we) 25. The boy is sitting in his seat quietly. (quite)。