assistance n.帮助，援助

assistant n.助理，助手，助教adj.助理的，辅助的

记忆方法同根词：assist v.帮助，协助；assistance n.帮助，援助

associate 4 vt.(with)把……联系在一起vi.(with)与……交往，结交n.伙伴，同事adj.①副的②合伙的，有关的

考点提要associate,company,companion辨析

associate 同事，指在事业上有利害关系的人；company集体名词，泛指一切同事，朋友；companion指没有利害关系的同伴，熟人。

记忆方法①同根词：society n.社会；social adj.社会的②派生词：association n.联合，协会，联想

association 8 n.①协会，团体②联合，结合，交往③联想

典型考题Soon a women’s was formed in our village.

A.meetingB.association

C.assimilationD.assurance\[B\]

试题解析association 协会，社团；meeting一个会议；assimilation(食物等的)吸收；assurance保证。

assume 19 vt.①假定，假设②承担，担任③假装

考点提要I assumeit to be wrong.

that it is wrong.我假定那是错的。

assuming that ……假使

记忆方法派生词：assumption n.假定，假装

assumptionassumption 2 n.假定，设想

常考短语on the assumption that…基于……的假定

assurance n.保证，承诺

assure vt.①使确信，使放心②向……保证，保障

常考短语assure sb. of sth. = convince sb. of sth. 使相信

考点提要insure,assure,ensure“保证，确信”

insure 指经济上保险，如：insure sb. against sth.；assure 向某人保证，让别人确信；ensure与assure一般可互换。

典型考题He was proud of being chosen to participate in the game and he us that he would try as hard as possible.\[CET-4,2003.6\]

A. insured B. guaranteedC. assumedD. assured\[D\]

试题解析题意：被选中参加游戏，他感到自豪，并向我们保证他将全力以赴。本题考查近义动词辨析。assure sb. that 指 向某人保证某事；insure (against sth)确保，投保;guarantee 指约定, 许诺,assume 指假设。

astonish vt.使惊讶，使吃惊

考点提要be astonished at

be astounded at

be surprised at 对……吃惊

at prep.①(表示地点、位置)在……②(表时刻、年龄、时节)在……③(指方向、目标)向……，朝……④(价格，速度上)以，在……方面⑤(指原因)因……

常考短语be surprised at 因……而吃惊；at least (most) 至少(多)； at once 立刻

athlete n.运动员，体育家

atmosphere 8 n.①空气②气氛，环境③大气压

典型考题The room has a stuffy .

A.atmosphere B.surfaceC.attitudeD.altitude[A\]

试题解析题意：这个房间空气闷热。atmosphere大气；surface表面；attitude态度；altitude高度。