1.allay v.减轻，缓和( to relieve)
联想记忆：al（看作all全都）+lay(放置)--负担都放下了--减轻，缓和
例:The appointment of Forrestal as First Secretary of Defense allayed the suspicions of naval officers.
2.allege v.断言，宣称( to assert without proof or before proving)
词根记忆：al（加强）+leg(指定，任命)+e--大声任命--宣称
例:The company alleged that the employee tampered with the computer system.
派生词:allegation(n.宣称；指控)：alleged(a.声称的，所谓的)；allegedly( ad.依其申述)
3.allegiance n.忠诚，拥护(loyalty, faithfulness)
联想记忆：al+leg(法律)+iance--靠近法律--拥护
例:Most historians have underestimated the extent of womens political allegiance in the antebellum(战前的)period.
派生词:allegiant(a.忠心的，忠实的)
4.allergic a.过敏的( of allergy)；对…讨厌的(averse or disinclined)
联想记忆：aller(看作alert警报)+gic--皮肤出现警报--过敏的
例:Not all forms of sulfite are equally likely to produce the allergic reactions.
同根词：allergenic(a.引起过敏症的)
5.allergy n.过敏症（an unfavorable reaction to certain foods, pollens, insect bites, etc)
词根记忆：all（其他）+erg(起作用，工作)+y--起其他作用--过敏症
派生词:allergic(a.过敏的)
6.alleviate v.减轻，缓和( to allay)
词根记忆：al+lev(轻)+iate--减轻
例:The mayor claims that the fee will alleviate the citys traffic congestion.
同根词：levity(n.轻率)
7.alliance n.联盟( an association to further the common interests of the members);联合（the state of being allied）
词根记忆：来自ally(v.联合，联盟)
例:The resulting cooperative alliance of independent agencies now comprise 32 partners spanning 37 countries.
8.alligator n.短吻鳄（产于美洲的一种鳄鱼）(a reptile of the crocodile family)
例:Alligators prey heavily on a species of freshwater fish.
9.allocate v.分配(to distribute)；分派(to designate)
词根记忆：al（加强）+loc（地方）+ate（做）一不断把东西发送到各地--分配
例:They seek to allocate capital in ways that may reduce their tax burden.
派生词:allocation(n.配给，分配)
10.allotment n.分配 (apportionment);分配物 ( something that is allotted );养家费(money that be used to support a family )
词根记忆：来自 allot( v.分配 )
例:To meet the rapidly rising market demand for fish and seafood,suppliers are growing fish twice as fast as they grow naturally, cutting their feed allotment by nearly half and raising them on special diets.