2.abandon____

3.ability_____

5.abnormal___

6.aboard____

7.abolish____

8.abortion____

11.abroad____

12.abrupt_____

13.absence____

14.absent_____

15.absolute_____

16.absorb______

17.abstract____

18.absurd_____

19.abundant_____

20.abuse______

21.academic___

22.academy____

23.accelerate____

24.accent_____

25.accept_____

26.access______

27.accessible____

28.accident____

29.accommodation

30.accompany____

31.accomplish____

According to______

32.account____

33.accountant____

34.accumulate____

35.accuracy___

36.accurate____

37.accuse_______

38.accustomed____

39.ache_________

40.achieve______

41.achievement____

42.acid__________

43.acknowledge___

44.acquaintance__

45.acquire_____

46.acquisition____

47.acre_______

49.act________

50.action______

51.active_______

52.activity______

53.actor________

54.actress______

55.actual______

56.acute_______

57.AD__________

58.ad=

advertisement

59.adapt________

60.adaptation_____

61.add_________

62.addicted_____

63.addition_____

64.address_____

65.adequate_____

66.adjust______

67.adjustment___

68.administration__

69.admirable___

70.admire_____

71.admission____

72.admit______

73.adolescence____

74.adolescent____

75.adopt______

76.adore______

77.adult_______

78.advance____

79.advantage_____

80.adventure____

81.advertise___

82.advertisement__

83.advice_____

84.advise_____

85.advocate____

86.affair______

87.affect______

88.affection_____

89.afford______

90.afraid______

91.Africa_____

99.agency_____

100.agenda______

101.agent________

102.aggressive____

104.agree________

105.agreement___

106.agricultural_____

107.agriculture_____

108.ahead_________

109.aid__________

110.AIDS__________

111.aim__________

112.air__________

113.aircraft________

114.airline_________

115.airmail________

116.airplane_______

117.airport________

118.airspace______

119.alarm________

120.album________

121.alcohol______

122.alcoholic_______

123.algebra________

124.alike__________

125.alive__________

127.allergic______

128.alley__________

129.allocate______

130.allow_______

131.allowance____

135.alongside_____

136.aloud_______

137.alphabet_____

140.alternative____

141.although_____

142.altitude______

143.altogether_____

144.aluminium____

147.a.m./am

148.amateur_____

149.amaze_______

150.amazing______

152.ambassador____

153.ambassadress__

154.ambiguous_____

155.ambition_____

156.ambulance___

157.among_______

158.amount______

159.ample_______

160.amuse_______

161.amusement____

162.analyse______

163.analysis______

164.ancestor_____

165.anchor_______

166.ancient________

168.anecdote_____

169.anger________

170.angle________

171.angry________

172.animal_______

173.ankle_________

174.anniversary____

175.announce_____

176.annoy_________

177.annual_______

178.another______

179.answer______

180.ant__________

181.Antarctic_____

Anti-_______

Anticipate_______

182.antique______

183.anxiety_____

184.anxious_______

187.anyhow_______

190.anyway______

192.apart________

193.apartment____

194.apologize_____

195.apology______

196.arent_____

197.eal_______

198.ear_______

199.earance____

200.endix_____

201.etite_____

202.laud______

204.licant_____

205.lication___

206.ly________

207.oint______

208.ointment___

209.reciate____

210.reciation____

211.roach_____

212.ropriate____

213.roval_____

214.rove_____

215.roximately__

216.apron________

217.arbitrary_____

218.arch__________

219.architect_____

220.architecture____

221.Arctic_______

223.area__________

224.argue________

225.argument____

226.arise(arose，arisen)__________

227.arithmetic____

228.arm__________

229.armchair______

230.army_______

232.arrange______

233.arrangement___

234.arrest________

235.arrival________

236.arrive________

237.arrow________

238.art__________

239.article_______

240.artificial______

241.artist_________

243.ash__________

244.ashamed_____

245.Asia__________

246.Asian_________

247.aside________

250.aspect_______

251.assess_______

252.assessment___

253.assist________

254.assistance____

255.assistant_____

256.associate_____

257.association___

258.assume______

259.assumption___

260.astonish______

261.astronaut_____

262.astronomer___

263.astronomy_____

265.athlete_______

266.athletic_______

267.Atlantic_______

268.atmosphere____

269.atom________

270.attach________

271.attack________

272.attain______

273.attempt______

274.attend________

275.attention_____

276.attitude_______

277.attract________

278.attraction_____

279.attractive______

280.audience______

281.aunt__________

282.authentic______

283.author________

284.authority______

285.automatic______

286.autonomous___

287.autumn_______

288.available_______

289.avenue________

290.average_______

291.avoid_________

292.awake(awoke，awoken)__________

293.award________

294.aware_________

296.awesome______

297.awful_________

298.awkward______