extent

美 { "us": "", "uk": "" }
英 { "us": "", "uk": "" }
数据源: ai_enrichment
extent 指事物的大小、范围或程度,常用于描述物理空间或抽象概念的影响范围。

用法要点

介词搭配

extent 常与介词 to 连用,表示“到...程度”,如 to some extent(在某种程度上)。也可与 of 连用,表示“...的范围”,如 the extent of the damage(损害的范围)。

• to a great extent
• to the full extent
• the extent of the problem

句型结构

常用句型包括“to what extent...?”(到什么程度?)用于提问,以及“to the extent that...”(到...的程度)引导从句,表示条件或结果。

• To what extent do you agree?
• He helped to the extent that he could.

语域说明

extent 在正式和学术语境中常见,如报告、论文,用于量化分析。日常对话中较正式,但也可用于强调程度。

• The extent of climate change is alarming.
• I didn't realize the extent of her injury.

基础例句

I was surprised by the extent of the park; it's much larger than I expected.

我对公园的范围感到惊讶;它比我想象的要大得多。

To what extent do you think the weather affected our plans?

你认为天气在多大程度上影响了我们的计划?

She helped me to the extent that she could, but it wasn't enough.

她尽她所能帮助了我,但这还不够。

高级例句

The study aims to assess the extent of environmental pollution in urban areas.

这项研究旨在评估城市地区环境污染的程度。

To a great extent, the success of the project depends on adequate funding.

在很大程度上,项目的成功取决于充足的资金。

The report details the full extent of the economic impact caused by the policy change.

报告详细说明了政策变化造成的经济影响的全范围。

高频搭配

verb

assess the extentdetermine the extentmeasure the extentreduce the extentunderstand the extent

adjective

full extentgreat extentlimited extentcertain extentunknown extent

noun

extent of damageextent of knowledgeextent of influenceextent of area

adverb

largely to the extentpartly to the extentfully to the extent

preposition

to the extent ofwithin the extent ofbeyond the extent of

phrase

to some extentto a certain extentto the fullest extentto a large extent

常见错误

❌ 错误:I don't know the extent about this issue.
✓ 正确:I don't know the extent of this issue.

错误使用了介词 about,extent 通常与 of 搭配表示“...的范围”,应改为 of 以符合习惯用法。

❌ 错误:He helped me to extent.
✓ 正确:He helped me to some extent.

遗漏了限定词,extent 前常需加修饰语如 some、a certain 等,以明确程度,否则句子不完整。

近义词辨析

degree

degree 更强调等级或强度,常用于量化比较,如温度、角度;extent 更侧重范围或广度,多用于空间或抽象概念。

The degree of difficulty varies (强调等级), while the extent of the forest is vast (强调范围).

scope

scope 指活动、项目或能力的范围或领域,常与具体任务相关;extent 更通用,可指物理或抽象的程度,如影响范围。

The scope of the research is limited to biology (具体领域), but the extent of its impact is global (广泛程度).