1.work—worker
2.vent—inventor（人）--invention（物)
3.use—useful-used 4.teach—teacher
5.conduct—conductor 6.care—careful--carefully
7.play—player 8.visit—visitor
9.careless—carelessly—carelessness
10.clean—cleaner 11.inspect-inspector
12 .wake--awake 13.speak--speaker
14.piano—pianist 15 .sleep—asleep
16.cook—cook（人）—cooker（物） 17.science—scientist
18.miss—missing 19.dance—dancer
20.art—artist 21.fish--fishing
22.drive—driver 23.tour—tourist
24.kind—kindness 25.farm—farmer
26.joural—jouralist 27 .nature--natural
28.mange—manger 29.library—librarian
30.cover—discover 31.foreign—foreigner
32.music--musician 33.feather--feathered 34 .help—helper
36.busy—business--businessman 37.follow--following
38.read—reader 39 .post—postman/postwoman
40.enter—entrance 41.write—writer
42.sit--seat 43.danger--dangerous
44.run—runner 45.wool--woollen
46.serve--service 47.win—winner
48.lose--lost 49.pride--proud
50.sing—singer 51.worry--worried
52.collect—collection 53.swim—swimmer
54.break--broken 55.produce--production
56.sleep—sleeper 57.fill—filled--full
58.contribute--contribution
59.travel—traveller—traveling
60.reward--rewarding 61.comfort--comfortable
62.climb—climber 63.turn--turning
64.instruct--instruction 65.keep—keeper
66.fly--flight 67.pollute--pollution
68.strange—stranger 69.please—pleased—pleasant--pleasure
70.move--moving 71.wait—waiter
72.know—knowledge 73.appear--appearance
74.jump—jumper 75.meet--meeting
76.disappear--disappearance
77.speak—speaker 78.thank--thankful
79.frighten--frightened 80.print—printer(物)
81.noise—noisy--noisily 82.life--lifetime
83.sell—seller 84.cross—across--crossing
85.frustrate--frustrated
86.dive—diver 87.ill—illness
88.fire—fireplace 89.own—owner
90.pain--painful 91.tradition--traditional
92.explore—explorer 93thank--thankful
94.decorate—decorator--decoration
95.surf—surfer—surfing
96.help--helpful 97 .confident--confidence
98.help—helper 99.wonder—wonderful--wonderfully
100.different--difference
101.begin—beginner 102.colour—colourful
103.importanrt--importance
104.paint—painter
105.beauty—beautiful—beautifully
106.good--goodness
107.rob—robber--robbery
108.forget--forgetful 109.person—personal
109.active—activity--actively
110.congratulate—congratulation
111.think—thought
112.decide—decision 113.breathe—breath
14.review—revision 115.describe—description 116.possible—impossible 117.late--later
118.discuss—discussion
119.celebrate—celebration 120.dry—drought
121.enjoy—enjoyable 122.air—airport 123.lone--lonely 124.fun—funny
125.live—lively--alive 126.train—training
127.educate—education
128.love—lovely 129.clear—clearly
130.slow—slowly 131.exact—exactly 132.final—finally
133.quick—quickly 134.happy—happily 135.heavy—heavily
136.near—nearly 137.real—really 138.sad—sadly--sadness
139.quiet—quietly 140.silent—silently 141.polite—politely 143.safe—safely—safety
144.luck—lucky—luckily—unlucky
145.usual—usually—unusual 146.health—healthy—healthily
147.success—successful—successfully 148.excite—excited—exciting
149.interest—interested—interesting 150.surprise—surprised—surprising
151.amaze—amazed—amazing 152.bore—boring
153.grate—grateful(近)thankful
154.dark—darkness
155.park—parking 156.treat—treatment 157.cross—across—crossing
158.boat—boating 159.salt—salty 160.home—homework
161.house—housework 163.check---check-out 164.begin—beginning
165.lie—lying 166.die—dying 167.friend—friendly—friendship
168.most—mostly 169.die—dead—death 170.especial—especially
171.fail—failure 172.probable—probably 173.realize—realization
174.rail—railway 175.shy—shyly—shyness 176.space—spaceship
177.high—highly—height 178.one—first—once 179.two—second—twice
180.bear—born—birth 181.relax—relaxed 182.true—truly—truth
183.name—named 184.call—called 185.bright—brightly
186.sudden—suddenly 187.direct—directly 188.wide—widely
189.volley—volleyball 190.foot—football 191.base—baseball
192.give—given 193.harm—harmful 194.neat—neatly
195.build—builder—building 196.deep—deeply 197.correct—correctly
198.hard—hardly 199.marry—married 200.mean--meaning