principal
用法要点
名词用法
principal 作名词时,常见于教育、金融和法律领域,指学校校长、投资本金或犯罪主犯,通常为可数名词,需根据上下文确定具体含义。
形容词用法
principal 作形容词时,意为“主要的”或“最重要的”,用于修饰名词,强调核心地位或首要性,常见于正式或书面语境。
介词搭配
principal 常与介词 of 连用,表示所属关系,如“the principal of the school”;在形容词用法中,可搭配 as 或 in,如“principal as a leader”。
基础例句
The principal announced a new school policy during assembly.
校长在集会上宣布了一项新的学校政策。
Her principal concern is her children's safety.
她最关心的是孩子们的安全。
We need to pay back the principal on the loan next month.
我们下个月需要偿还贷款的本金。
The principal reason for the delay was bad weather.
延误的主要原因是天气不好。
高级例句
In the financial report, the principal amount of the investment is highlighted for risk assessment.
在财务报告中,投资的本金金额被突出显示以进行风险评估。
The principal investigator oversees all aspects of the research project to ensure compliance with ethical standards.
首席研究员监督研究项目的各个方面,以确保符合伦理标准。
As the principal shareholder, she has significant influence over corporate decisions.
作为主要股东,她对公司决策有重大影响。
The principal objective of the study is to analyze the impact of climate change on agricultural yields.
这项研究的主要目标是分析气候变化对农业产量的影响。
高频搭配
verb
adjective
noun
adverb
preposition
phrase
常见错误
错误混淆了 principal(校长)和 principle(原则)。principal 作名词时指人如校长,而 principle 指抽象原则,需根据词义区分使用。
错误使用了多余的介词 of。lack 作为及物动词,直接接名词,如 lack time,无需加 of,应避免受中文“缺乏时间”直译影响。
近义词辨析
main
main 更通用,指主要的或最重要的部分,常用于日常语境;principal 更正式,强调首要性或核心地位,多用于专业或书面场合。
The main reason is cost. (日常) / The principal reason is outlined in the report. (正式)
head
head 作名词可指负责人,如部门主管,较口语化;principal 特指学校校长,更具正式和教育领域色彩。
She is the head of the department. (泛指领导) / She is the principal of the high school. (特指校长)