刘毅词汇22000 有关Necessity的词群

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近年来，托福、GRE、GMAT、研究生入学考试和其他各种英语等级考试，都倾向于单词范围越来越深广，难度越来越深，而词汇量不足，全盘都会受影响!突破难记易记的瓶颈，背单词要从根抓起;词根相同的一起背;词义相同的一起记!以下是小编整理的关于刘毅词汇22000 有关Necessity的词群的资料，希望对你的词汇拓展有所帮助！

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有关Necessity“需要”的词群

essence

n. 本质；精髓　

The union and management held a lengthy meeting without getting to the essence of the men's dissatisfaction; low wages.

工会与经营部门召开漫长的会议，却无法触及工人不满的核心 ― 低薪。

prerequisite

n. 先决条件　

A mark of at least 75% in Basic Art is a prerequisite for Advanced Art.

基础艺术得分在七十五分以上，是续修高等艺术的先决条件。

entail

vt. 需要　

Can your family afford the extra expense that a larger apartment entails?

你的家庭负担得起较大公寓所需的额外费用吗？

necessitate

vt. 需要　反：obviate除去, 排除

Mr. Brown told Ellen that her refusal to work necessitates sending for her parents.

布朗先生告诉艾伦他必须向她父母告知她拒绝工作之事。

oblige

vt. 强迫；使负有义务　

If your friend ere in trouble, wouldn't you feel obliged to go his help?

如果朋友有困难，你不觉得有义务帮他忙吗？

obviate

vt. 排除；使不必要　

Helen has agreed to lend me the book I need. This obviates my trip to the library.

海伦同意把我要的书借我，这使我不必跑图书馆。

compulsory

adj. 义务的；必须做的　

State law makes attendance at school compulsory for children of certain ages.

州法律规定到达一定年龄的小孩都有义务上学。

gratuitous

adj. 没必要的　

Were it not for your gratuitous interference, the children would have quickly settled their dispute.

要不是你多余的干涉，孩子们很快就会停止争论。

imperative

adj. 必须的；紧急的　

If you have failed a subject you need for graduation, it is imperative that you go to summer school.

如果有一个必修科不及格，你便必须去上署期学校。

incumbent

adj. 使负有义务的　

Dan felt it incumbent on him to pay for the window, since he had hit the ball that broke it.

丹觉得他有义务赔偿这块玻璃，因为是他打球弄破的。

indispensable

adj. 不可缺少的　反：dispensable不是必要的, 可有可无的　

We can do without luxuries and entertainment. However, food, shelter, and clothing are indispensable.

我们可以不要奢侈品及娱乐，但是食物、住所及衣物却是不可缺少的。

pressing

adj. 急切的　

Before preparing for tomorrow's party, I have some more pressing matters to attend to, such as finishing my report.

在为明天宴会做准备前，我有更急切的事得办，如完成报告。

superfluous

adj. 多余的　

Since we already have enough food for the picnic, please don't bring any because it will only be superfluous.

我们野餐所需的食物已足够了，请别带任何东西来，因为那只会是多余的。