★ priority

n.先，前;优先，重点，优先权

【例1】The film stars went onto the stage according to priority of their appearance in the film.电影明星们按照自己在影片中出现的先后顺序依次上台。

【例2】The government gave top priority to reforming the legal system.政府将法制改革列为工作的重点。

【同义替换】precedence

【派生】prioritize v.给予优先权

★ mosquito

n.蚊子

【例】Patients should be isolated during the first three days, when mosquitoes can pick up the disease from them.患者在发病头三天内要隔离，以免被蚊子叮咬而传染他人。

★ cause

n.原因;事业

v.使产生，引起

【例1】The police are investigating the causes of the explosion.警方正在调查爆炸的原因。

【例2】Her life was devoted to the cause of justice.她为正义事业而献身。

【例3】She is always causing trouble for people.她总是给人添麻烦。

【同义替换】reason, excuse, account; career, occupation, vacation; engender, generate

【真题1】In many such cases, a cursory search for causes finds that some small group of people was wearing, promoting, or developing whatever it is before anyone else paid attention.在很多这样的情况下，一个粗略的对成因的调查发现，有一小部分的人不管先穿着什么，提倡什么或发展什么，后来，其他人才注意起来。

【真题2】These issues all have root causes in human behavior: all require behavioral change and social innovations, as well as technological development.这些问题的根本原因均在于人类的行为，因此解决这些问题需要人类行为的改变、社会革新和技术发展。

【真题3】Regrettably, however, the report’s failure to address the true nature of the crisis facing liberal education may cause more harm than good.然而可惜的是，该报告没能指出人文教育面临危机的本质，导致它的影响可能弊大于利。

★ insure

v.保险，给……保险;保证

【例1】Susan insured her car against losses caused by accident and theft.苏珊给自己的车上了保险，以免遭受因意外事故或被盗造成的损失。

【例2】The educators should insure that each student truly gains from their education.教育者们必须保证每一个学生都真正学有所获。

【构词】in-+sure(确定的)→保证

【同义替换】guarantee, ensure, pledge, assure, warranty

【派生】insurance n.保险，保险费

【真题】The principle of British welfare is no longer that you can insure yourself against the risk of unemployment and receive unconditional payments if the disaster happens.英国福利原则不再是你能够为失业投保，并在灾难发生时得到无条件的支付。

5500大纲词汇分为核心级词汇、拔高级词汇和基础级词汇。不同类别的词汇要给予不同程度的复习，这样才能使复习效率最大化。祝各位考生都能获得最后的胜利。

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