1.auction n．拍卖(a sale of property to the highest bidder)

词根记忆：auct( =aug提高)+ion--提高价格--拍卖

例:This was the second highest price ever paid for a painting at auction.

同根词：augment( v./n.增大)

2.audlophile n.唱片爱好者：爱玩高级音响的人(a person who is enthusiastic about high-fidelity sound reproduction)

词根记忆：audio(声音的)+phile(爱好)一爱玩声音一唱片爱好者

例:Many audiophiles and audio professionals think the warmer, richer tones produced by vacuum-tube-driven amplifiers make them preferable.

3.audit n.审计(a formal examination of an organization's or individual's accounts or financial situation)

词根记忆：aud(听)+it--听…报告--审计

例:Recent audits revealed that Banque Card has erred in calculating the interest it charges its clients.

同根词：auditor(n.审计员)：auditorium(n.观众席；礼堂)

4.auditorium n.礼堂(a room, hall, or building used for public gatherings);观众席(the part of a public building where an audience sits)

分拆记忆：auditor(听者)+ium(地点)--听者的地点--礼堂

例:Reno praised Lee in her address to the packed auditorium of civil rights lawyers.

5.aura n.（人或物发出的）气味，香味(distinctive atmosphere caused by a person or thing)

例:Continued saies depend directly on the maintenance of an aura of exclusivity of the premium coffee.

Ordinary people merely think how they shall spend their time;a man of talent tries touse it．

普通人只想到如何度过时间，有才能的人设法利用时间。

德国哲学家叔本华(Arthur Schopenhauer, German philosopher)