quicken: stresses a sudden arousal or renewal of physical, spiritual, or intellectual life or activity especially in something inert: the arrival of spring ~s the earth.  renew恢复续约续借     inert惰性惯性，指人不愿活动    又如his interest quickened as he heard more about the plan他越听这个计划越觉得感兴趣，如the high salary quickened her desire to have the job高工资激发她找工作的愿望


animate: emphasizes the imparting of motion or vitality to what was previously deficient in or lacking such a quality: telling details that ~ the family story.  animate强调动作motion，如an animated cartoon动画卡通，来自ANIM词根表示breath,soul呼吸和灵魂，由此，这个词还表示精神高气氛热烈，如an animated discussion of current events热烈地讨论时事  deficient<-->sufficient    telling 1、有力的有说服力的，2、显著的明显的，这里两个意思都可以用


enliven: suggests a stimulating influence that arouses from dullness or torpidity: ~ed his lecture with humorous anecdotes.   (stimulate刺激suggests a rousing out of lethargy, quiescence, or indifference表示使不再困倦静止冷淡，如the challenge stimulated them to work faster这一挑战刺激他们加速工作，如America's priority is rightly to stimulate its economy美国的首要任务自然是刺激经济)  dull和torpor同义，都表示迟钝呆滞slow or sluggish，如monotonous work that left his mind dull单调的工作使他思维迟钝


vivify: implies a freshening or energizing through the imparting or renewal of vitality: her appearance ~ies a weary drawing-room drama.  形容词vivid也是生动的，强调"清晰"producing very clear pictures in your mind，如vivid memories清晰的记忆，如he gave a vivid account of his life as a fighter pilot他生动地描述了他那战斗机飞行员的生活    又如a smile may vivify a face微笑使脸变得生动，outings vivify learning for children出游能够使孩子的学习变得生动


quicken激发: 指忽然唤发生机活力，animate生动: 强调赋予动作，enliven生动: 表示进行刺激，使不再迟缓，vivify生动: 指赋予清新活力


记忆方法: 1）首字母QEAV想成乌克兰首都基辅<==生动  

         2）生动的意思是使有活力mean to make alive or lively.