“Preface sth by doing sth”是什么意思?
“Preface sth by doing sth” 意味着以某个特定的动作或陈述开始或引入某事。它表示一个动作用来准备或引入另一个动作。
介绍
短语动词“Preface sth by doing sth”常用于口语和书面英语中,用来描述某一事件或陈述是由之前的一个动作引入的。理解“Preface sth by doing sth”的含义有助于学习者清晰且合逻辑地表达事件的先后顺序。例如,演讲者可能会通过轻松的评论来“Preface sth by doing sth”,以缓解紧张气氛再发表严肃的声明。这种结构在正式和非正式场合都很实用,通过展示因果关系或准备过程,使交流更加明了。
快速信息框
- 短语动词:Preface something by doing something
- 类型:及物动词
- 水平:B2
- 简短含义:以特定的行为或陈述作为开场介绍某事
结构(语法规则)
“Preface sth by doing sth” 是一个及物短语动词短语,结构固定,且不可分割。
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Pattern: Preface + something (noun) + by + doing something (verb-ing)
- Example: She prefaced her speech by thanking the audience. (她在演讲前先感谢了观众。)
如何使用“Preface sth by doing sth”?
当你想表达一个动作引出或为另一个动作做准备时,可以使用“Preface sth by doing sth”。前半部分通常是名词或名词短语,后半部分是以动名词形式表达的动作。这种结构在正式演讲、写作和讲故事中很常见。
例子
以下是一些“Preface sth by doing sth in a sentence”的例句,帮助你理解其用法:
- He prefaced his remarks by apologizing for the delay. (他先为迟到道歉,然后才开始发表讲话。)
- The author prefaced the book by explaining the historical background. (作者在书的开头先介绍了历史背景。)
- They prefaced the announcement by discussing recent changes in the company. (他们在宣布之前先讨论了公司最近的变动。)
- Before the meeting, she prefaced her presentation by sharing a personal story. (在会议开始前,她先通过分享一个个人故事来引入她的演讲。)
- The teacher prefaced the lesson by reviewing last week’s material. (老师在开始这节课之前,先复习了上周的内容。)
常见错误
许多学习者混淆了结构或误用了动词“preface”。以下是一些常见错误及其纠正:
- Incorrect: He prefaced by apologizing the delay.
Correct: He prefaced his remarks by apologizing for the delay. - Incorrect: She prefaced the speech with thank the audience.
Correct: She prefaced the speech by thanking the audience.
差异 / 同义词
类似的短语包括“introduce sth with sth”和“begin sth by doing sth”。与更为通用的“introduce”不同,“preface”通常暗示一种正式或有意的引入行为。
- Introduce sth with sth:: 更通俗,少些正式。
- Begin sth by doing sth:: 意思相近,但对引言目的描述不那么具体。
- Preface sth by doing sth:: 具体指正式准备或介绍某事。
常见搭配
以下是一些常与“preface”搭配使用的常见词汇及其含义:
- Preface a speech – to introduce a talk or presentation (为演讲作序——介绍一次谈话或演讲)
- Preface a book – to write an introduction before the main text (为一本书作序——在正文之前写一篇引言)
- Preface a statement – to begin a comment or declaration (为陈述作序——开始一段评论或声明)
- Preface remarks – to start with initial comments (序言评论——以初步评论开始)
相关短语动词
以下是相关短语动词 preface sth by doing sth:
现实生活中的对话
看看这段使用“Preface sth by doing sth”的简短对话:
Anna: How did the manager start the meeting?
安娜:经理是怎样开场会议的?
Ben: He prefaced the meeting by thanking everyone for their hard work.
本:他在会议开始时首先感谢了大家的辛勤付出。
Anna: That sounds like a good way to begin.
安娜:这听起来是个不错的开头方式。
练习
Try completing this sentence with the correct form:
She prefaced __________ by __________.
- a) her speech / thanking the audience
- b) thanking the audience / her speech
- c) her speech / to thank the audience
Answer: a) her speech / thanking the audience
常见问题解答
- Q: “preface”可以单独使用吗? A: 可以,但完整短语“Preface sth by doing sth”强调的是作为引入的动作。
- Q: “preface”是正式用语还是非正式用语? A: 它更偏正式,常用于书面或演讲中。
- Q: 我可以只用“preface”加名词吗? A: 可以,比如说,“她为这本书写了序言。”
- Q: “by”后面用什么时态? A: “by”后面用动名词形式(-ing形式)。
- Q: 我可以用“introduce”替换“preface”吗? A: 有时可以,但“preface”暗示的是一种更为刻意的引入行为。

