1.abdicate v.放弃，丢弃(to discard)

词根记忆：ab(离去)+dic(说话，命令)+ate(做)一被命令离去一放弃

例:A democratic government should not abdicate its responsibilities as a guardian of the public interest.

2.abnormal a．反常的(unusual, exceptional)

国词根记忆：ab（离去）+norm（标准）+al一脱离标准的一反常的

例：It is the periodic abnorma/warming of the sea surface off Peru.

同根词：norm(n.标准，规范)：normal(a．正常的，正规的)

3.abolish v.取消，废除（to end the observance or effect of）

词根记忆：该词来自拉丁文abolere，表示“破坏；使灭绝；阻止，妨碍”

例：The committee abolished all entry requirements.

派生词:abolition(n.废除)：abolitionist(n.废奴主义者)

4.absenteeism n.旷工, 旷课(chronic absence, as from work or school)

词根记忆：absent(缺席)+ee(人)+ism一旷课，旷工

例：Acorn Valley reports few instances of tardiness, absenteeism,or discipline problems.

5.absorb v.吸收(to sick up or take up );同化(to take in and make part of an existant whole)

词根记忆:ab(离去)+ sorb(吸收)一吸收掉一吸收

例:A Plant absorbs and stores nickel from the soil as it grows.//It is difficult to absorb them into a city economy.

6.abstract a.抽象的(difficult to understand); n.摘要(summary)

词根记忆:abs+trat(拉)一将大意从文章中拉出-摘要

例:Professor Brown's books are very abstract and are hard to read。//You can tell if a paper is worrthwhile by reading jts abstract.

派生词:abstracted( a.心不在焉的);extract( v.摘取，抽出)

同根词:intractable( a.难处理的);contract( n.合同)

7.absurd a.荒唐的(rid iculously unreasonable)

词根记忆:ab+surd(不合理的)-不合理的-荒唐的

例:The opponents’reasoning leads to an absurd conclusjon，

派生词:absurdity( n.荒谬)

8.abundant a.大量的，丰富的：富裕的：多的( plentiful)

词根记忆:a（无）+bund（看作bound边界）+ant（…的）一多得没边的-大量的

例:Japan's abundant rainfall and typically mild temperature have produced a lush vegetation cover.

派生词:abundance( n.大量;充足)

9.academic a．学院的：学术的( of schools, colleges);n.学者(teacher at a university,college; professional scholar)

例:Nova High School began to use interactive computer instruction in three academic subjects.

派生词:academician(n.院士;学会会员)；nonacademic(a.非学术的)

10.accelerate v.加速，促进( to hasten the progress or development of)

词根记忆：ac（加强）+celer(速度)+ate一加快速度-+促进

例:Government spending accelerates the pace of inflation.//The introduction of Westem ideas to Korean society accelerated after 1977.

派生词:acceleration(n.加速)；accelerator(n.加速器)

同根词：celerity(n.迅速)：decelerate(v.减速)