为了方便广大考生更好的复习，恒星英语网综合整理了SAT备考资料：常用词汇，以供各位考生考试复习参考,希望对考生复习有所帮助。
Group 17
Amorphous lacking in shape
Catharsis purging of pent-up emotions
Deter put off, prevent
Expedite make faster
Incarceration putting in prison
Machinations plots and plans
Overwrought worked up, in an emotional state
Preeminent famous, outstanding
Sardonic mocking
Unalloyed undiluted, total
Group 18
Analgesic medicine to combat pain
Caucus type of private political meeting
Deteriorate worsen, decline
Exposition clear explanation
Incessant without stopping
Maelstrom whirlpool, storm in the ocean
Palatable good to eat, agreeable
Prerogative right or privilege
Savant person with knowledge
Unctuous oily; using excessive flattery
小编提醒：单词的记忆要靠长期的坚持，考生们一定要持之以恒，每天都拿出来看一看背一背，让这些词汇在大脑中形成长期记忆，这样就不会轻易地忘记背过的词汇了。