1.administer v.管理，执预to manage or supenise the execution,use,or conduct of）；用药( dispense of apply(a remedy or drug))

联想记忆：ad（做）+minis(管理)+ter--管理

例:administer tribal lands管理部落的土地，//The nasal spray vaccine is not effective when administered to adults.

派生词:administration(n.管理：管理部门)：administrative(a.管理的，行政的)

2.admit v.(t0)承认(to acknowledge)；准许…进入（to allow entry）

词根记忆：ad+mit(送)--能送进去--准许…进入

例:In a survey of job applicants, two-fifths admitted to being at least a little dishonest.

派生词:admittance(n.准入)：admission(n.准许进入)

3.adolescent n.青少年( young person between childhood and adulthood)；a.青春期的(typical of time between childhood and adulthood)

词根记忆：ado(看作adult成人)+lescent(开始或正在形成的)--开始成为成年人的--青少年

例:The children of authoritative parents are likely to be responsibly independent as adolescents.

派生词:adolescence(n.青春：青春期)

4.adoption n.采用，采纳( accepting)；收养(taking sb.into one's family, esp.as one's child or heir)

词根记忆：来自adopt(v.采用;收养)

例:adoption of new technologies采用新技术//There are far fewer children available for adoption than there are people who want to adopt.

派生词:adoptive(a.采纳的；过继的)

5.advent n.到来，出现( coming into being or use)

词根记忆：ad+vent(来)--到来

例:The advent of private hospital health insurance guaranteed the private hospital a regular source of income.

同根词：intervention(n.干涉)：convention(n.大会;习俗)

6.adverse a.逆的(acting against or in a contrary direction)；不利的(unfavorable, harmful)

词根记忆：ad+vers(转)+e一对着转一逆的，不利的

例:The adverse effects of poor performance by the firm are significant for the client.

派生词:adversely( ad.反过来，相反)：adversary(n.敌手，对手)

7.advertising n.广告：广告业( the business of preparing advertisements for publication or broadcast)

词根记忆：来自advertise(v.做广告)

例:A key decision required of advertising managers is whether a"hard-sell" or "soft-sell' strategy is appropriate for a specific target market.

同根词：advertisement(n.广告：宣传)

8.advocacy n.拥护，支持( the act or process of advocating)

词根记忆：来自advocate(v.提倡;拥护)

例:Traditional news sources seldom report the views of political advocacy groups accurately.

9.advocate v.提倡，支持(to support) n.支持者，提倡者(adherent)

词根记忆：ad+voc(叫喊，声音)+ate--为其摇旗呐喊--支持

例:The school board adVocated purchasing new books.

派生词:advocacy(n.拥护；鼓吹)

10.aerodynamic a.空气动力学的(of a science dealing with the forces acting on solid bodies moving through air)

词根记忆：aero(空气)+dynamic(动力学的)--空气动力学的