necessitate

/nəˈsesɪteɪt/ (bre, ipa) · /nəˈsesɪteɪt/ (ame, ipa) · /ni-ˈse-sə-ˌtāt/ (ame, mw)

necessitate — verb

  • necessitatepresent simple I / you / we / they
  • necessitateshe / she / it
  • necessitatedpast simple
  • necessitating-ing form

1. to bring about a situation in which something or some action becomes required, u

1.動詞及物C1
釋義

to bring about a situation in which something or some action becomes required, usually as a consequence of a prior event or condition.

例句

The heavy snowfall in the mountains necessitated the closure of three school districts on Monday.

necessitate + noun (closure) — typical formal report register

Eitan's broken ankle will necessitate using crutches for at least six weeks.

necessitate + -ing form, a very common pattern

同義詞
  • require

    much more common; works in both everyday and formal speech

  • demand

    stronger feel of urgency; subject is often a situation or principle

  • entail

    highlights that the consequence follows logically, not just practically

反義詞
  • preclude

    to make impossible rather than required

  • obviate

    formal: to remove the need for something

文法句型

necessitate + noun

necessitate + -ing form

be necessitated by + noun

用法筆記

Subject is typically an event, condition, or change (snowfall, rule, decision) rather than a person; the thing necessitated is the response or consequence. Frequently passive in reports and academic writing.

常見錯誤

❌I necessitate help with the project.
✅I need help with the project.
💡people don't necessitate things; events do. Use 'need' or 'require' for personal needs.
❌The teacher necessitated the students to study harder.
✅The teacher required the students to study harder.
💡necessitate does not take a 'someone to do' object; use 'require' for that pattern.