6.aftermath n.结果,后果( consequence)
例:In the aftermath of the flood, people rebuilt their homes.
7.aggravate v.加重,恶化(to make worse; intensify)
词根记忆:ag+grav(重)+ate--使重--加重,恶化
例:Doctors generally agree that such factors as cigarette smoking, eating rich foods high in fats, and alcohol consumption not only do damage by themselves but also aggravate genetic. predispositions toward certain diseases.
派生词:aggravation(n.加剧,恶化)
同根词:grave(a.重大的:庄重的)
8.aggregate v.合计(to coilector gather intoa mass orwhoIe);n.集合体(a body of units somewhat loosely associated with one another);a.合计的,聚合的(collective)
词根记忆:ag+greg(团体)+ate--成为团体--集合体
例:aggregate of consumers消费者的集合体//A company may be able to estimate accurately the aggregate number of shoes it is going to sell.
派生词:aggregation(n.聚集;总计)
同根词:gregarious(a.喜社交的)
9.aggression n.侵略,侵犯(invasion);敌对行为(hostile, injurious, or destructive behavior)
联想记忆:ag+gress(走)+ion --走到别的国家--侵略
例:Rhesus monkeys(猕猴)respond with aggression to a wider range of stimuli than any other monkeys do.
派生词:aggressive(a.攻击性的,侵略的);aggressiveness(n.好斗)
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