记忆方法
双解例句
小知识
A good camping knife is a necessity if you’re going to be hiking in a heavily forested region. A necessity is something that you must have in order to complete a task.
When used in the plural, necessities are items required for a situation but nothing extra. You probably only bring the bare necessities to a sleepover — pajamas and a toothbrush. Sometimes a necessity is a thing you must know how to do. Knowing how to balance your checkbook is a financial necessity. In some cases, necessity simply means “need.” Do you do your homework out of necessity or because you want to?
实用短语
常用短语
单词用法
out of necessity出于需要,必定
by necessity不得已;必然地,不可避免地
logical necessity必然性,逻辑的必然性
词根词缀
词根: cess
=go,表示”行走,前进”
adj.
accessible 能接近的;可进去的access[n.接近;入口 v.存取, 接近]+ible能……的→adj.能接近的;可进去的
accessory 附属的,同谋的access接近+ory表形容词或名词→接近的物→附加物,附属的
excessive 过分的;过度的excess[n.过度,过剩]+ive……的→adj.过分的;过度的
inaccessible 难以接近的in不+accessible[adj.能接近的;可进去的]→adj.难以接近的
successive 连续的,继承的suc随后+cess行走,前进+ive……的→随后跟上→连续的
n.
access 接近;入口ac接近+cess行走,前进→走近
accessory 附件,零件,同谋者access接近+ory表形容词或名词→接近的物→附加物,附属的
ancestor 祖先;祖宗an=ante前+cest=cess行走,前进+or人→走在前面的人→祖先
ancestry 祖先;世系,家世an=ante前+cest=cess行走,前进+ry整体→n.祖先;世系,家世
concession 让步;退位con共同+cess后退+ion动作或状态→n.让步;退位
excess 过度,过剩ex出+cess行走,前进→n.过度,过剩
necessary 必需品ne=need需要+cess行走,前进+ary物→n.必需品
necessity 必要性, 需要,必需品ne=need需要+cess行走,前进+ity性质,特性等→n.必要性, 需要,必需品
procession 队伍,行列process[n.过程;进行 v.加工, 处理]+ion表名词→向前走的队伍
recess 休息;隐居re回+cess行走,前进→走回去→休息
recession 撤退;交还re回+cess行走,前进+ion动作或状态→走回去→撤退
success 成功;胜利suc随后+cess行走,前进→随后跟上→继续→继续做→成功
succession 接连发生,继承, 继任suc随后+cess行走,前进+ion动作或状态→随后跟上→继续发生→继续别人[事业,成功]→继承, 继任
v.
access 存取, 接近ac接近+cess行走,前进→走近
同义词
ineluctability / certainty / inescapability / inevitability / certitude
duress / force / coercion / constraint / pressure / compulsion / obligation
obligato / indispensability / mandatary / obligation / needful / essentiality
essential / need / want / desire / indispensable / vital / component / demand / imperative / must / urgency / exigency
poverty / penury / beggary / pauperism / neediness / destitution / indigence / privation / impecuniosity / impoverishment
requirement / prerequisite / necessity / requisite / essential / necessary
反义词
同根词
词根:necessity
adj.necessary必要的;必需的;必然的
necessitarian必然论的;宿命论的
adv.necessarily必要地;必定地,必然地
n.necessary必需品
necessitarian必然论者;宿命论者
vt.necessitate使成为必需,需要;迫使