imperative學測 L6KK [ˌɪˈmpɛrətɪv] ｜ /ˌɪˈmpɛrətɪv/
極重要的；必要的·當務之急；必要之事·（文法）祈使語氣
學測常考字，形容詞名詞一字兩用
When the fire alarm rang, leaving the building at once became imperative.
警報一響，立刻離開大樓就成了非做不可的事。
一個畫面：被推著往前走
背後推力有人從背後推你一把，逼你立刻行動
警報聲響警報一響，沒有選擇只能照做
長官下令長官一聲令下，你必須服從
義項
警報當前B2adjective極重要的；必要的
It is imperative that everyone leave the building at once.
所有人都必須立刻離開大樓。
it is imperative thatan imperative need
警報當前A2noun當務之急；必要之事
Saving water is now an imperative for the whole city.
省水現在是整座城市的當務之急。
a clear imperativean imperative to act
下達命令B1noun（文法）祈使語氣
In the sentence "Close the door," the verb is in the imperative.
在「把門關上」這句中，動詞用的是祈使語氣。
the imperative moodan imperative sentence
片語
imperative mood命令語氣 →文法上表示命令的語氣
imperative sentence命令句子 →用來下達命令的句子
an imperative to act推你行動 →非做不可的行動理由
你會不會這樣說？
'Saving water is now an imperative for the whole city.' 這裡的 imperative 是什麼意思？(A) 當務之急 (B) 祈使語氣的命令句
看答案
(A)
此句描述迫切需要做的事，對應「當務之急；必要之事」的義項，非文法上的祈使語氣。
'In the sentence "Close the door," the verb is in the imperative.' 這裡的 imperative 是什麼意思？(A) 文法上的祈使語氣 (B) 當務之急
看答案
(A)
此句在解釋文法用法，imperative 指祈使語氣，並非當務之急的意思。
字族
imperatively 迫切地；命令式地
順路看看
mandatory — 官方規定必須做，語氣更正式urgent — 強調時間緊迫，不一定是義務command — 祈使語氣句子下達的具體命令多益練習
本區為多益情境練習，與上方釋義獨立編寫
情境例句
跨部門時程通知
It is imperative that every department receive the revised schedule before Monday.
務必讓每個部門在星期一之前收到修訂後的時程表。
內部系統故障處理
Restoring access to the shared folder has become an imperative for the support team.
恢復共用資料夾的存取已成為支援團隊的當務之急。
詞族
imperative adjective 極重要的；必要的・imperatives noun (plural) 多項迫切要務
四選一
It is absolutely ____ that the revised schedule reach every department today.
看答案
imperative
只有形容詞 imperative 能在此作補語，構成 It is absolutely imperative that...。imperatively 是副詞，不能單獨充當此處的補語；imperatives 是複數名詞；imperative's 是所有格，兩者都不符合本句結構。
同義改寫
It is imperative that every department receive the revised schedule today. → It is essential that every department receive the revised schedule today.
此處 imperative 與 essential 都強調當天收到修訂時程表是必要的，並保留相同對象與期限。
Restoring access to the shared folder has become an imperative for the support team. → Restoring access to the shared folder has become an urgent necessity for the support team.
名詞 an imperative 在此指迫切必須處理的事；an urgent necessity 保留其必要性與急迫性。