require

require — 動詞

1. to have a particular need for something because the situation or purpose calls f

1.動詞及物B1
釋義

需要；須有

因應情況或目的而必須擁有

to have a particular need for something because the situation or purpose calls for it.

例句

Baking a chocolate cake requires three fresh eggs and two cups of flour.

烤巧克力蛋糕需要三顆新鮮雞蛋和兩杯麵粉。

require + noun phrase

Charlotte's new role in sales requires her to travel overseas four times a year.

Charlotte 的新業務工作讓她每年需要出國四次。

require + object + to-infinitive

同義詞
  • need

    less formal, more common in everyday speech

  • call for

    informal, often used in British English, e.g. 'The recipe calls for butter'

  • necessitate

    formal, used in writing to stress that something is unavoidable

  • demand

    stronger, implies a high level of urgency or importance

反義詞
  • forgo

    to choose to live without something needed

文法句型

require + noun phrase

require + doing something

require + somebody + to do something

be required for

用法筆記

More formal than 'need'; preferred in writing and official contexts. In everyday speech, 'need' is far more common. The pattern 'require + somebody + to-infinitive' (e.g. 'the job requires him to travel') overlaps with sense 2 but here the necessity comes from the situation, not from a person or authority giving an order.

常見錯誤

❌I require to go to the restroom.
✅I need to go to the restroom.
💡'require' is not used for routine personal needs in spoken English; use 'need' instead.

2. to officially tell someone that they must do something, because a law, rule, or

2.動詞及物B2
釋義

要求；強制

依規定或權威命令必須做

to officially tell someone that they must do something, because a law, rule, or the person in charge says it is necessary.

例句

The factory requires all workers to wear safety goggles at all times.

工廠要求所有員工隨時佩戴安全護目鏡。

require + object + to-infinitive

Adisa was required by law to register for military service at eighteen.

Adisa 依法必須在十八歲時登記服兵役。

passive: be required + to-infinitive

同義詞
  • compel

    stronger, suggests force or irresistible pressure

  • oblige

    formal, often used in passive: 'feel obliged to'

  • mandate

    formal, used for official requirements from laws or governments

  • demand

    more forceful, can be used without legal backing

反義詞
  • allow

    to let someone choose freely instead of forcing them

  • permit

    to give formal permission, opposite of requiring

  • exempt

    to officially release someone from a requirement

文法句型

require + somebody + to do something

require + that-clause

be required + to do something

be required by

用法筆記

Frequently appears in passive constructions ('be required to do something'). The that-clause pattern usually takes the subjunctive in formal English: 'requires that he be present', not 'requires that he is present'. Distinguish from sense 1: here the obligation comes from a conscious authority figure, rule, or law, not from circumstances.

常見錯誤

❌The teacher required that we finished the homework by Friday.
✅The teacher required us to finish the homework by Friday.
💡In everyday use, 'require + object + to-infinitive' is more natural than a that-clause after a named authority figure.