✨ 语义深度解析
expand
高考核心词 作文加分词 难度 2/5 ⏱ 3 分钟
核心
「扩大;扩展;膨胀」——强调规模/范围/体积的扩大;expand on = 详细阐述
释义
1
v.扩大;扩展(规模/范围/体积)
The university has plans to expand its research facilities and hire additional faculty over the next five years.
该大学计划在未来五年内扩大其研究设施并增聘教职人员。
2
v. (phrasal)详细阐述(expand on)
The author expanded on the concept of 'social capital' in the following chapter, providing concrete examples from three countries.
作者在随后的章节中对「社会资本」概念进行了详细阐述,并提供了来自三个国家的具体案例。
语感
expand one's horizons = 拓展视野——议论文谈教育/旅行益处的高频比喻表达
扩大/扩展(动)膨胀(物理义)扩张(expansion,名)
陷阱
⚠️expand(规模扩大)vs increase(数量/程度增加)
The number of international students at the university has increased by 30% this year.
用 expanded(the number of students expanded)
increase 用于「数量/比例/程度上的增加」(the number increased, price increased);expand 用于「整体规模/范围/体积的扩大」(the programme expanded, the city expanded);「数量增加了30%」用 increased,「规模扩大」用 expanded
今年该大学的国际学生人数增加了30%。
⚠️expand on(短语动词)不能写成 expand about 或 expand more
The speaker was asked to expand more on the economic implications.
演讲者被要求进一步阐述经济影响。
「详细阐述」的短语动词是 expand on(不是 expand more on / expand about);expand on 本身已经含「进一步阐述」的意涵,加 more 是重复
The speaker was asked to expand on the economic implications of the proposal.
演讲者被要求进一步阐述该提案的经济影响。
近义辨析
expand vs increase
expand 扩大/扩展,侧重规模、范围或体积的扩大,可及物或不及物 increase 增加,侧重数量、程度或幅度上的增大,常接 in(increase in demand)
The company plans to expand its operations into Southeast Asian markets within two years.
该公司计划在两年内将业务扩展到东南亚市场。
The company reported a significant increase in revenue following the product launch.
该公司报告称,产品发布后收入有大幅增加
写作加分
✨ 加分词
替换:get biggergrowmake bigger
议论文谈教育益处经济/商业话题社会政策分析
普通
Studying abroad helps students grow and learn new things.
出国留学帮助学生成长并学习新事物。
加分 ✨
Studying abroad expands students' cultural awareness and professional networks while equipping them with the adaptability needed to navigate an increasingly globalised workforce.
出国留学拓展了学生的文化认知和职业网络,同时赋予他们在日益全球化的劳动力市场中所需的适应能力。
常用搭配
expand one's horizons拓展视野(高频比喻搭配)
expand into + 市场/地区向……扩张/拓展(商业语境)
expand on详细阐述/进一步说明(短语动词)
rapid / global expansion快速/全球扩张(名词搭配)
an expanding economy / market扩张中的经济/市场(形容词)
词根
ex(向外)+ pand(展开/伸展)→ expand = 「向外伸展」→ 扩大;expand on = 向外延伸说明 = 详细阐述
考考你
Q1近义选词
选择最恰当的词填空:
Over the past decade, the proportion of women in senior leadership roles has gradually ___ from 15% to nearly 30%.
Aexpanded
Bincreased
✓ 过去十年,女性担任高级领导职务的比例逐渐从15%增加到近30%。
proportion(比例)是数量性指标,用 increased(数量/程度增加)更自然;expanded 通常描述「规模/范围/体积的扩大」,不常用于「比例增加」的表达。
Q2对错判断
判断下面句子里 expand on 的用法是否正确:
Could you please expand on your earlier comment about the role of media in shaping public opinion?
expand on(详细阐述/进一步说明)是正确的短语动词,后接阐述对象;此句结构完全正确。
Q3翻译应用
用 expand 翻译下面句子(可参考 writing_upgrade 字段):
良好的教育不仅应当传授知识,更应当拓展学生看待世界的视野,使他们能够理解不同文化、观点和生活方式。
A good education should not merely impart knowledge but should expand students' horizons, enabling them to appreciate diverse cultures, perspectives, and ways of life.
关键搭配:expand students' horizons ... enabling them to
expand one's horizons(拓展视野)是议论文谈教育益处的经典比喻;not merely X but Y 是「否定不足+提出更高要求」的议论文句型;enabling them to(使他们能够)是分词状语,继续展开「拓展视野」的具体内涵。
接着学
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