音标：[im'perәtiv] ；柯林斯词典等级：1 级；

n. 命令, 必要的事, 规则, 祈使语气
a. 命令式的, 急需的, 势在必行的, 强制的

n. some duty that is essential and urgent
a. requiring attention or action
a. relating to verbs in the imperative mood

词型变化：名词复数形式 : imperatives
考试类型：[六级/考研/托福/IELTS/GRE]

词性分布：

名词58%

形容词42%

imperative的用法和样例：

例句

用作形容词(adj.)

It is imperative that we make a quick decision.我们要尽快做出决定。
It's imperative that you apologize to him immediately.你必须立即向他道歉。
"Go!" is in the imperative mood.“Go！”是祈使语气的句子。

用作名词(n.)

Survival is our first imperative.我们当务之急是设法生存下来。
Everyone should fulfill their social imperatives earnestly.每个人都应认真履行其社会职责。

常见句型

用作形容词(adj.)

用作定语～+ n.

He always speaks in an imperative tone of voice.他老是用命令的口吻讲话。
The imperative mood is a kind of grammatical phenomenon.祈使语气是一种语法现象。

用作表语S+be+～

These instructions are imperative.这些命令必须得服从。
In business, a prompt reply is imperative.在商业上迅速的回复是必要的。
It was an important suit, and great accuracy was imperative.这是一宗很重要的诉讼案,有必要搞得很精确。

It is/was+～+for sb+to- v

It is imperative for you to come.你无论如何要来。
It's imperative for him to be taken to hospital at once because he is seriously ill.由于病得厉害,必须立即把他送到医院。

It is/was+～+that-clause

It is imperative that we should build a stable economy.我们必须建立稳定的经济。
It's imperative that you arrive before seven o'clock.你必须七点之前到。

用作名词(n.)

Job creation has become an imperative for the government.创造就业机会是政府必须做的事。
“Stop!” isn't an imperative.stop不是祈使语气的动词。

词汇搭配

用作形容词 (adj.)

～+名词

imperative manner命令的态度
the imperative mood祈使语气

副词+～

really imperative真正迫切需要

～+介词

imperative for〔on〕 sb对某人来说绝对必要

用作名词 (n.)

动词+～

use imperative用祈使语气

形容词+～

economic imperatives经济上的需要

介词+～

with the imperative用祈使语气

～+介词

the imperative of survival生存的需要

经典引文

She gave these orders in an imperative, hot rush of words.
出自：M. Keane

【近义词】

adj.

【反义词】

beseeching恳求似的

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