Those would be executives had, says Etzioni, little interest in concepts of ethics and morality in the boardroom—and their professor was met with blank stares when he urged his students to see business in new and different ways. （2006年12月24日大学英语四级(CET-4)真题试卷(A卷)）
532. urgent
a. 急迫的，紧急得
Before she ever gets the chance to commit to a cause, charity or foundation as First Lady, her most urgent and perhaps most complicated duty may be simple to be herself. （2009年12月大学英语四级考试试题）
533. usage
n. 使用，用法
No government will adopt rigid restrictions on economic growth and personal freedom (limits on electricity usage, driving and travel) that might cut back global warming. （2008年6月大学英语四级考试真题）
534. violence
n. 强力，暴力
They are victims of violence. （2009年12月大学英语四级考试试题）
535. violent
a. 强暴的
A typhoon is a very violent tropical storm.
台风是一种非常强烈的热带风暴。
536. violet
a. 紫色的
Clouds are violet in the summer twilight.
夏日夕阳里的彩霞就是紫色。
537. weed
n. 杂草，野草
What is a weed? A plant whose virtues have not been discovered.
何谓杂草？它是一种人们尚未发现其优点的植物。
538. welfare
n. 福利
They live on charity and social welfare. （2009年12月大学英语四级考试试题）
539. whatsoever
ad. （用于否定句）任何
We reserve the right to delete any message for any reason whatsoever.
各讨论区版主保留是否删除文章的最后决定权；
540. whereas
conj. 然而，但是，尽管
Man can create his own environment whereas animals adapt to their environment.
人能创造他自己的环境，而动物只能适应环境。
541. essential
a. 必不可少的；本质的
Cooperation between pilots and air controllers is essential. （2006年12月24日大学英语四级(CET-4)真题试卷(A卷)）
542. estimate
n. /vt. 估计，估量
We need to make an accurate estimate beforehand.
我们需要事先做出准确的估计。
543. evaluate
vt. 评估，评价
Thus, for example, we should expect to see __78__ in a positive mood state evaluate products in more of a __79__ manner than they would when not in such a state. （2007年12月大学英语四级考试真题）
