1
request sth
request 是正式用词，口语中更常用 ask for。
She requested a copy of the report.
她要了一份报告的副本。
请求；要求
先理解核心含义，再看它在真实句子里的用法。
请求；要求
to ask for something or ask somebody to do something
She requested a copy of the report.
她要了一份报告的副本。
请求(某物)
To ask for (something).
请求(某人)做某事
To ask (somebody) to do something.
request
Base
原形
requests
3rd person
第三人称单数
requesting
-ing
现在分词
requested
Past
过去式
requested
Past participle
过去分词
She requests a meeting.
她请求一个会议。
He requested more information.
他请求了更多信息。
They are requesting assistance.
他们正在请求协助。
The manager requests that employees submit reports by Friday.
经理要求员工在周五前提交报告。
She is requesting a copy of the contract from the legal department.
她正在向法律部门索要一份合同副本。
He requested a transfer to another department after the project ended.
项目结束后，他请求调到另一个部门。
request 是正式用词，口语中更常用 ask for。
She requested a copy of the report.
她要了一份报告的副本。
from 引出提供信息或物品的人。
The committee requested more information from the witness.
委员会向证人要求更多信息。
此结构比较正式，常用被动语态。
Visitors are requested to leave their shoes at the door.
访客被要求在门口脱下鞋子。
that 从句常用虚拟语气，即动词用原形。
The judge requested that the trial be postponed.
法官要求审判延期。
Not this
She requested for a glass of water.
Use this
She requested a glass of water.
动词 request 是及物动词，后面直接接宾语，不需要介词；只有名词 request 才跟 for 搭配，所以应去掉 for。
Not this
I requested that he helps me.
Use this
I requested that he help me.
request 后接 that 从句时，从句要用虚拟语气，谓语用动词原形（或 should + 动词原形），表示尚未实现的请求，不能用直陈式的 helps。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
请求提供信息
You can request information about the program by email.
您可以通过电子邮件请求获取有关该计划的信息。
请求许可
Please request permission before entering the lab.
进入实验室前请先请求许可。
申请退款
If you are not satisfied, you can request a refund within 30 days.
如果您不满意，可以在30天内申请退款。
请求帮助
The stranded hiker requested assistance.
被困的徒步者请求了帮助。
正式请求
The committee formally requested a review of the procedure.
委员会正式请求对程序进行审查。
按要求；一经请求
The full report is available on request.
完整报告可应要求提供。
应要求；经请求
The song was played by request.
这首歌是应观众要求播放的。
应……的请求
The meeting was postponed at the request of the chairman.
会议应主席的要求延期举行。
Use request naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想成 re（再）+ quest（追寻）：为达成目标再次追寻，礼貌地开口“请求”。
语域：formal 常见场景：商务邮件、正式申请、客户服务 request 作动词时比较正式，多用于书面请求、商务邮件或正式场合；日常口语中常用 ask 表达类似意思。选用时可根据双方关系和场合决定正式程度。
常接宾语或宾语+不定式，不直接跟介词
Dictionary facts from ECDICT, WIKTIONARY.