make certain

英 /meɪk ˈsɜːtn/美 /meɪk ˈsɜːrtn/

v. 动词

确保;查明;弄清楚

用法示例

  1. Please make certain that all lights are turned off before leaving.离开前请确保所有灯都关掉。
  2. We must make certain of the exact number of participants.我们必须查明参与者的确切人数。
  3. She made certain to double-check the report for errors.她确保仔细检查报告中的错误。
  4. The scientist made certain that the experiment was reproducible.科学家确保实验是可重复的。
  5. In legal contracts, it is crucial to make certain that all clauses are unambiguous.在法律合同中,确保所有条款无歧义至关重要。
  6. Before the trip, we made certain of the hotel reservation.旅行前,我们确认了酒店预订。

含义详解

make certain 的核心含义是“使确定”,即通过行动或验证来消除不确定性。其本义源于“make”(使)与“certain”(确定的)的组合,表示“使某事物变得确定”。由此引申出两个主要义项:一是“确保”(ensure),指采取行动以保证某事发生或达到某种结果,例如“We must make certain that the project is finished on time.”(我们必须确保项目按时完成。);二是“查明”(ascertain),指通过调查或核实来确认事实,例如“Please make certain of the flight time.”(请查明航班时间。)。这两个义项紧密相连:要“确保”往往需要先“查明”现状,而“查明”的目的也常是为了“确保”。

词源解析

该词组由动词“make”和形容词“certain”构成。“make”源自古英语“macian”,意为“制作、使成为”;“certain”源自拉丁语“certus”,意为“确定的、可靠的”,是“cernere”(区分、决定)的过去分词形式。整个词组字面意为“使成为确定的”,构词逻辑清晰,易于记忆:想象你亲手把一件事“做”成“确定”的状态,即“确保”或“查明”。

适用语境

make certain 在多种场合使用,语气偏正式。在学术写作中,用于强调论证的严谨性,如“Researchers must make certain that their data is accurate.”(研究人员必须确保数据准确。);在商务邮件中,用于强调责任或要求,如“Please make certain all invoices are paid by Friday.”(请确保所有发票在周五前付清。);在日常口语中,虽不常见,但也会出现,如“Make certain you lock the door.”(确保你锁门。);在新闻报道中,用于强调事实核查,如“The authorities made certain that the evidence was not tampered with.”(当局确保证据未被篡改。);在法律文本中,用于强调义务,如“The party must make certain that the contract is executed.”(当事方必须确保合同得到履行。)。总体而言,其正式程度高于“make sure”,在书面语中更受青睐。

用法须知

make certain 是及物动词短语,后常接 that 从句(that 可省略)、介词 of 引导的名词或动名词,以及不定式(较少见)。常见句型:1. make certain + that 从句,如“Make certain (that) you have enough money.”(确保你有足够的钱。);2. make certain of + 名词/动名词,如“He made certain of winning the game.”(他确保赢得比赛。);3. make certain + 不定式,如“She made certain to arrive early.”(她确保早到。)。易错点:该短语通常不用于被动语态(如“*It was made certain that...”不自然);且后接 that 从句时,从句中常用一般现在时或一般将来时,避免使用虚拟语气。

相似词辨析

与 make certain 近义的词包括 make sure、ensure、ascertain、confirm。make sure 是最常见的口语化表达,语气更随意,如“Make sure you turn off the lights.”(确保关灯。);ensure 更正式,强调保证结果,如“This policy ensures equal opportunities.”(这项政策确保机会均等。);ascertain 强调通过调查或努力查明,如“The police ascertained the cause of the accident.”(警方查明事故原因。);confirm 强调确认已有的事实,如“Please confirm your reservation.”(请确认您的预订。)。使用建议:日常口语用 make sure;书面正式用 ensure 或 make certain;强调调查用 ascertain;强调确认信息用 confirm。

常见误区

make certain 属于中性偏正式的语域,在口语中略显生硬,但在书面语和正式场合中非常得体。它没有明显的褒贬色彩,但常带有责任感或谨慎的意味。常见误用:1. 与 make sure 混淆,在非正式场合使用 make certain 显得不自然;2. 在 that 从句中误用虚拟语气,如“*Make certain that he come.” 应改为“Make certain that he comes.”;3. 将 of 后接动词原形,如“*Make certain of do it.” 应改为“Make certain of doing it.”;4. 在被动语态中误用,如“*It was made certain that...”,应尽量避免。

常见搭配

  • make certain that...
  • make certain of sth.
  • make certain to do sth.
  • make absolutely certain
  • make doubly certain
  • make certain of the facts
  • make certain arrangements