1．vital; fatal; crucial; vitality vital: 重要的，生命的；fatal: 致命的 (CET6．96．6)；crucial: 决定性的 (CET6．00．1)；vitality: 活力，生命力。 The boy cycling in the street was knocked down by a minibus and received ＿＿＿ (fatal／excessive／disastrous／vital) injures．

2．dismiss; fire; lay off; discharge dismiss: 指强迫他人离开，即解雇，开除，也指允许许多人离开、解散；fire: （俗语）解雇通常用在有雇佣关系的场合；lay off: 解雇，下岗 (CET4．96．6)；discharge: 遣走（某人），让（某人）离去；也指正式“释放”。 The store had to ＿＿＿ (lay off／lay out／lay aside／lay down)?a number of clerks because sales were down．

3．scorn; scold; scent; score scorn: 轻蔑； scold: 责骂（指态度粗暴，高声地骂他人）； scent: 特有的气味，好闻的香味；score: 得分，记下。 The woman is always ＿＿＿ (scolding／scorning／scoring) the children playing around her house．

4．involve; include involve: 包括；包含，指必然包括某种结果；be involved in sth／with sb: 与某事（某人）有关连；include: 包括、包含，指包括属于整体的部分。 He was considered to be ＿＿＿ (involved／included) in criminal activities．

5．appoint; encounter; meet appoint: 任命，指定（时间，日期） He was appointed to the manager of the marketing department． encounter: 相会，遭遇（困难，危险等）或偶尔遇见（友人等）; meet (with):?指无意或有意地相见或遇到，满足。 They ＿＿＿ (met／encountered) with misfortune that day．

6．intervene; interfere intervene (in／between): 干涉?调停；（事件）介入，在期间发生；interfere (with) 干扰，干涉，让人感到讨厌。 They were about to fight when their father ＿＿＿ (interfered／intervened)．

7．initial; original initial; 起始的；original; 最初的，最早的 (CET6．98．1)。 This is the ＿＿＿＿ (initial／original／real／genuine) piano on which the composer created some of his greatest works．

8．discern; decent; descend discern: 识别，辨认；decent: a．有分寸的，合适的 (CET6．00．1．67)；descend(descent n．):?（位置的）降落，下降 (CET6．97．1．43)；decline: （比率）下降；变小，变弱 (CET6．97．6．57)。 We managed to reach the top of the mountain, and half an hour later we began to ＿＿＿ (ascend／descend／decline／discern)．

9．dominant; dominate; prominent; predominant; distinguished dominant: 有统治权的，最有势力的，占优势的；dominate: v．支配 (CET6．2000．1．44)；prominent: 显著的；杰出的（CET6．98．1．57?96．6．66）； predominant: 优势的，卓越的，流行的；distinguished：卓越的，杰出的，指以卓越的成绩和优异的素质超越同类之上。 Mr Bloom is not ＿＿＿ (significant／dominant／magnificent／prominent) now, but he will be famous some day． The book is expected to ＿＿＿ (exemplify／promote／prevail／dominate) the best?seller lists．

10．enhance; ascend; strengthen; promote enhance: 提高，增加（价值，力量等）(CET6．97．6); ascend: 上升，升高（CET6．98．6）；strengthen: 加强，强化; promote: 促进，增进友谊、产品销售等 (CET4．97．6)。 The reputation of the poet’s most recent works will certainly ＿＿＿ (?strengthen／enhance／ascend／magnify) his national reputation．

11．principal; major; principle; primary principal: a．主要的，n．主要人物，中学校长；major: a．比较重要的，vi主修；principle: 原则，原理；primary: 主要的第一的。 The ＿＿＿ (principal／principle) food of the Chinese is rice． Christina majored in foreign trade in London University．

12．ultimate; final; eventual ultimate: 终极的，根本的，主要的；final: 表示最后的，着重完结和最终结局；eventual: 最终的，结果的。 The sun is the ＿＿＿ (ultimate／eventual／final) store of power．

13．incident; accident; invent; case incident：偶尔的（小）事件，也指引起国际争端或战争的事件；accident: （意外）事故；invent: 特别重要的事件（CET4．01．1．59）；case: 案例（CET4．02．1）。 The lawyer advised him to drop the ＿＿＿＿ (event／incident／case／affair) ?since he stands little chance to win．

14．explore; exploit; probe; expose explore: 探究（进一步了解发现，学习）；exploit: 利用或开发（资源）；probe (into): 探查，细察（某人的思想，某事的原因）；expose: 使暴露?揭露。 We have to ＿＿＿ (explore／exploit) that idea．

15．likely; alike; unlike likely: 有可能的(CET4．98．6)；alike: 表语形容词，相似的；unlike: 不像 (CET4．99．6)。 ＿＿＿ (Unlike／likely／alike／dislike) his sister, Jack is quiet and does not easily make friends with others．