Wednesday，2026.07.22

New words：

commit /kəˈmɪt/

v. 动词

犯（罪、错误、过错）
投入；致力于；献身于
承诺；保证
移交；送交（较少考）

详细词源拆解：

前缀 com-（完全、共同）+ mit（派送、交付）；
本义交付出去，引申三层核心含义：
①交付自身（投入、献身）、②交付过错（犯下罪行 / 错误）、③交付承诺（保证、承诺）。

词汇家族

commit (v. 犯错；投入；承诺)
→ committed (adj. 尽心尽力的；忠诚的)
→ uncommitted (adj. 未作承诺的)
→ commitment (n. 投入；承诺；责任感)
→ committee (n. 委员会)

必记高频搭配

commit a mistake /error 犯错

Do not commit the same mistake again and again.

commit a crime 犯罪

Anyone who commits a crime will receive punishment.

commit oneself to (doing) sth 致力于 / 投身于某事

The teacher commits all her time to her students.
He commits himself to studying English every day.

commit to doing sth 承诺做某事

We commit to protecting the environment together.

关键使用提醒

1. 必考固定结构：commit oneself to doing sth，to 是介词，后面接动名词

   错误：commit oneself to study
   正确：commit oneself to studying
   He commits himself to helping others.
   他致力于帮助他人。

2. 变形拼写易错：

   双写 t → committed /committing，不可写成 commited

3. 词义场景区分

   搭配 mistake /crime → 犯错、犯罪；
   搭配 oneself → 投身、奉献；
   搭配 to do → 承诺。

4. 作文高级替换：

   commit oneself to 可替换普通短语 work hard at，提升书面文采。