compose 有三个核心用法：① 创作（音乐/文章）：compose a symphony（创作交响乐）；compose a letter（撰写信件）；② 构成，组成（被动用法）：be composed of（由…构成：the committee is composed of = 委员会由…组成）；③ 使镇定（反身动词）：compose oneself（使自己镇定：she composed herself before speaking = 她在发言前使自己镇定）。名词：composer（作曲家）；composition（作品；作文；构成：a musical composition = 音乐作品；the composition of the population = 人口构成）。
释义
1
v.创作，撰写（音乐或文字）
Beethoven composed some of his most celebrated works during the period when he was losing his hearing.
贝多芬在失聪期间创作了他一些最著名的作品。
2
v.（be composed of）由…构成，组成
The research team was composed of specialists from five different countries, bringing together expertise in medicine, engineering, and social science.
研究团队由来自五个不同国家的专家组成，汇集了医学、工程和社会科学领域的专业知识。
3
v.（compose oneself）使镇定，使平静下来
She paused for a moment to compose herself before delivering the difficult news to the family.
她停顿片刻镇定自己，然后向家人传达了这个难以接受的消息。
语感
compose a piece of music（创作音乐）；be composed of（由…构成）；compose oneself（镇定自己）；composer（作曲家）；composition（作品；作文；构成）
创作（音乐/文章）由…构成（被动）使镇定（compose oneself）
高频搭配：compose a symphony / piece / song（创作交响乐/曲子/歌曲）；compose a letter / email / essay（撰写信件/邮件/文章）；be composed of sth.（由…构成：the panel is composed of experts = 专家组由专家构成）；compose oneself（使自己镇定：take a moment to compose yourself = 花一点时间镇定自己）；composer（作曲家：a classical composer = 古典作曲家）；composition（①作品：a musical composition = 音乐作品；②作文：write a composition = 写作文；③构成：the composition of the workforce = 劳动力构成）；辨析：be composed of（由…构成，被动，更书面）vs. consist of（由…组成，主动，不用被动：the team consists of = 团队由…组成，× is consisted of）vs. comprise（包括，构成：the team comprises five members = 团队包括五名成员）。
陷阱
⚠️be composed of vs. consist of——两者意思相近但用法不同
The jury is composed of twelve ordinary citizens who are selected randomly.
✗
× is consisted of（consist of 用被动）
✓
be composed of（被动，书面正式：the committee is composed of = 委员会由…构成）；consist of（主动，不用被动：× is consisted of）；两者意义相同；comprise（包含：the team comprises = 包括，也不用被动：× is comprised of，虽常见但严格说不规范）；此句 is composed of（被动）正确；若用 consist of，改为主动：the jury consists of
陪审团由随机选出的十二名普通市民组成。（be composed of = 被动；consist of = 主动，两者均可）
⚠️compose oneself（使镇定）vs. × compose yourself down
✗
After receiving the unexpected news, he needed a few minutes to compose himself down before returning to the meeting.
收到意外消息后，他需要几分钟镇定自己，然后才能返回会议。（× compose himself down → ✓ compose himself）
compose oneself（使自己镇定）是固定惯用语；× compose yourself down 是冗余表达；只需 compose oneself：take a moment to compose yourself = 花一点时间镇定自己；collect oneself 也有同样含义；× compose down / compose back 不是标准表达
✓
After receiving the unexpected news, he needed a few minutes to compose himself before returning to the meeting.
收到意外消息后，他需要几分钟镇定自己，然后才能返回会议。
近义辨析
composevsconsist of
composebe composed of（由…构成，被动语态：the team is composed of specialists = 团队由专家组成；书面正式）consist ofconsist of（由…组成，主动语态：the team consists of specialists = 团队由专家组成；× is consisted of；比 be composed of 更常用于口语）
The advisory board is composed of representatives from academia, government, and the private sector.
顾问委员会由来自学术界、政府和私营部门的代表组成。
The course consists of eight modules, each examining a different aspect of contemporary global governance.
该课程由八个模块组成，每个模块研究当代全球治理的不同方面。
写作加分
✨ 加分词
替换：writemake up ofcalm down
艺术话题学术议论文文化话题
普通
Mozart wrote many great pieces of music during his short life.
莫扎特在其短暂的一生中写了许多伟大的音乐作品。
加分 ✨
Despite dying at the age of thirty-five, Mozart composed over six hundred works, including symphonies, operas, and chamber music, leaving a legacy that continues to define the Western classical tradition.