1
necessitate + noun phrase
The severe weather necessitated a change of plans.
恶劣的天气迫使计划改变。
使成为必要；需要
先理解核心含义，再看它在真实句子里的用法。
使成为必要；需要
to make something necessary; to require something to happen as a result
The severe weather necessitated a change of plans.
恶劣的天气迫使计划改变。
使成为必要；需要(某事)得以实现。
To make necessary; to behove; to require (something) to be brought about.
迫使采取某种行动；强迫。
To force into a certain course of action; compel.
necessitate
Base
原形
necessitates
3rd person
第三人称单数
necessitating
-ing
现在分词
necessitated
Past
过去式
necessitated
Past participle
过去分词
This necessitates immediate action.
这使立即行动成为必需。
The situation necessitated a change.
这种情况迫使做出改变。
Recent events have necessitated a review.
最近的事件使得有必要进行审查。
及物动词，常接名词或从句
The unexpected snowstorm necessitated a change in our travel plans.
突如其来的暴风雪使我们必须改变旅行计划。
Her injury necessitated immediate medical attention.
她的受伤需要立即进行医疗处理。
The complexity of the problem necessitated hiring an expert.
问题的复杂性使得必须聘请一位专家。
The severe weather necessitated a change of plans.
恶劣的天气迫使计划改变。
His injury necessitated canceling the match.
他的伤势使得取消比赛成为必要。
that从句常用虚拟语气（should+动词原形）。
The situation necessitates that we take immediate action.
情况迫使我们立即采取行动。
Not this
The necessitate of a new plan is clear.
Use this
The necessity of a new plan is clear.
「necessitate」是动词，不可直接用作名词；表示「必要性」时应使用名词形式「necessity」。
Not this
This necessitates to change the system.
Use this
This necessitates changing the system.
动词「necessitate」后应接动名词（-ing形式），而非不定式（to do）。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
使改变成为必要
The new regulations necessitate a change in our procedures.
新规定使我们的程序改变成为必要。
使进一步调查成为必要
The discrepancies necessitate further investigation.
这些差异使得进一步调查成为必要。
使采取行动成为必要
The crisis necessitates immediate action.
这场危机使得立即采取行动成为必要。
使修订成为必要
The errors necessitate a revision of the document.
这些错误使得文件修订成为必要。
需要仔细规划
The complexity of the project necessitated careful planning.
项目的复杂性需要仔细规划。
使采取措施成为必要
The growing threat necessitates taking preventive measures.
日益增长的威胁使得采取预防措施成为必要。
Use necessitate naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象某情况迫使你必须行动，'necessitate'即'使成为必需'。
多用于正式或学术场合，表示某事使另一件事成为必要。
All listed words share the '-ate' ending pronounced /eɪt/. However, 'necessitate' has primary stress on the second syllable (niˈsesiteit), while some of these words (e.g., 'create', 'debate', 'translate') also have second-syllable stress, and others (e.g., 'dictate', 'hesitate', 'imitate') have first-syllable stress. The final /eɪt/ sound rhymes with that in 'necessitate'.
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.