18.accuse vt.指控，指責 accuse sb of (doing ) sth 控告…

　　19.accustomed adj.習慣的，適應的，慣常的

　　be/ get/ become accustomed to doingHe was soon accustomed to getting up early.

　　20.ache vi./n headache / toothacheMy back aches so much.

　　21.achieve vt 達到;取得 achievement n 成就

　　achieve success/victory/one’s goal;

　　22.achievementn.成就，業(yè)績;完成(任務等) make great achievements

　　23.acknowledge v.承認，致謝

　　It is generally acknowledged that global warming is caused by greenhouse gases.

　　Yaoming is acknowledged as/ to be the best player in China.

　　I acknowledged financial support from the local government.

　　24.across prep cross v.I walked across the street.; cross a street;come/run across碰到

　　25.act n.法令，條例vt.表演，扮演，行動，做事

　　act as 充當;扮演 act out 把…表演出來

　　26.action n.行動take action to do sthput sth into action 把…付諸實施

　　27.active adj.積極的;主動的 take an active part in /be active in 積極參加

　　28.activity n.活動 outdoor activities 戶外運動

　　29.actual a.實際的actuallyadv. in (actual) fact 實際上

　　30.adapt vi.適應，適合，改編vt.使適應adapt to change /the city life

　　adapt oneself to the new surroundings adapt the novel for a film adaptation n.適應

　　31.add vt 添加，增加，補充說(that)

　　add(…)to 添加add up 把…加在一起 add up to總計為; 總數(shù)為

　　a) His illness added to our trouble.b) He added that he would come again.

　　c) Please add these figures up.d) These numbers add up to 100.

　　e) He added some salt to the water.

　　32.addressn.地址 vt.寫地址;向…講話(尤指演講)

　　address the letter to sb.給某人寄信 The letter was wrongly addressed.

　　The president addressed the public.

　　33.adjust vt.調(diào)整，調(diào)節(jié)，適應adjust your speed /the volume/ the camera

　　adjust to the dark/ the single life adjust yourself to the student life adjustment n.調(diào)整，調(diào)節(jié)

　　34.admire v 欽佩.;羨慕

　　admire sb for sth I admire John for his courage.