词根信息
pos / pon / pose — 放、放置
核心含义
拉丁语 ponere = to put, to place, to set。这是英语中派生词最多的词根之一——前缀决定”怎么放”,pose 决定”放”本身。
派生词网络
Tier 1 — 雅思高频核心(必须掌握)
| 单词 | 拆解 | 字面义 | 实际义 |
|---|---|---|---|
| position | pos(放) + -ition(名词) | 放置的位置 | 位置、职位、立场 |
| purpose | pro-(前→古法语) + pos(放) | 放在前面的东西 | 目的、意图 |
| propose | pro-(前) + pose(放) | 放在前面 | 提议、建议、求婚 |
| oppose | op-(=ob,反) + pose(放) | 反着放 | 反对、对抗 |
| compose | com-(一起) + pose(放) | 放到一起 | 组成、创作(音乐/文字) |
| expose | ex-(出) + pose(放) | 放出去 | 暴露、揭露、接触 |
| impose | im-(=in,上) + pose(放) | 放在上面 | 强加、征收(税) |
| suppose | sup-(=sub,下) + pose(放) | 放在下面(作为前提) | 假设、认为 |
| deposit | de-(下) + posit(放) | 放下来 | 存放、存款、押金 |
Tier 2 — 重要扩展
| 单词 | 拆解 | 字面义 | 实际义 |
|---|---|---|---|
| dispose | dis-(分开) + pose(放) | 分开摆放 | 处理、处置、使倾向于 |
| postpone | post-(后) + pone(放) | 放到后面 | 推迟、延期 |
| opponent | op-(反) + pon(放) + -ent(人) | 反着放的人 | 对手、反对者 |
| component | com-(一起) + pon(放) + -ent | 放在一起的部分 | 组成部分、零件 |
| composition | compose + -ition | 组成的方式 | 组成、作文、作曲 |
| proposal | propose + -al | 提议的行为/内容 | 建议、提案 |
| exposure | expose + -ure | 暴露的状态 | 暴露、接触、曝光 |
例句(IELTS 场景)
- position — The company holds a leading position in the global market.
- 写作 Task 2 / 阅读:take a position on / in a position to
- purpose — The purpose of this essay is to examine the impact of social media.
- 写作 Task 2 开头段:the purpose of this essay/report
- propose — Several solutions have been proposed to address the housing shortage.
- 写作核心动词:it has been proposed that / as proposed by
- oppose — Many people opposed the construction of the new highway.
- 写作 Task 2 讨论分歧:be opposed to / strongly oppose
- compose — The committee is composed of experts from various fields.
- 写作:be composed of = consist of(更正式)
- expose — Exposure to diverse cultures broadens one’s perspective.
- 写作/口语:be exposed to / exposure to
- impose — The government imposed a tax on single-use plastics.
- 写作 Task 2 政策类话题核心词:impose a tax/ban/restriction on
- suppose — It is widely supposed that the main cause of obesity is poor diet.
- 写作引出普遍观点:be supposed to / supposedly
- deposit — A security deposit is usually required when renting an apartment.
- 听力 Section 1 租房场景
- dispose — Proper disposal of electronic waste is an growing environmental concern.
- 写作环境话题:dispose of / waste disposal
- postpone — The event had to be postponed due to unforeseen circumstances.
- 听力/口语:postpone = put off(更正式)
- opponent — Opponents of the policy argue that it would stifle innovation.
- 写作 Task 2 讨论对立观点核心词
- component — Renewable energy is a key component of a sustainable future.
- 写作:an essential / key / major component of
常见搭配速记
| 搭配 | 含义 | 场景 |
|---|---|---|
| the position of | …的位置/职位 | 写作/阅读 |
| for the purpose of | 为了… | 写作(正式) |
| on purpose | 故意 | 口语 |
| on the opposite side | 在对面/反方 | 写作 |
| be composed of | 由…组成 | 写作 Task 1 |
| be exposed to | 暴露于/接触到 | 写作/口语 |
| impose a ban on | 对…实施禁令 | 写作 Task 2 |
| be supposed to | 应该/被认为 | 写作/口语 |
| dispose of waste | 处理废物 | 写作环境话题 |
| a key component | 关键组成部分 | 写作 |
前缀拆解公式
[前缀] + pose/pos/pon
pro- 前 + pose → propose 提议(放在前面)
re- 后 + pose → repose 休息(放到后面→躺)
op- 反 + pose → oppose 反对(反着放)
com- 一起 + pose → compose 组成(放到一起)
ex- 出 + pose → expose 暴露(放出去)
im- 上 + pose → impose 强加(放在上面)
sup- 下 + pose → suppose 假设(放在下面当基础)
dis- 分开 + pose → dispose 处理(分开摆放)
de- 下 + posit → deposit 存放(放下)
post-后 + pone → postpone 推迟(放到后面)
op- 反 + pon + ent → opponent 对手(反着放的人)
com- 一起 + pon + ent → component 组件(放在一起的部件)
易混辨析
- propose vs purpose:propose = 提议(动词),purpose = 目的(名词)——拼写差一个位置,写作别写混
- compose vs consist:be composed of = consist of(可互换,前者更正式)
- oppose vs object to:oppose + noun/doing,object to + noun/doing(object 不需要 be 动词)
- expose vs impose:expose = 暴露(把覆盖物去掉),impose = 强加(把东西放上去)
- dispose vs dispose of:dispose sb to = 使某人倾向于,dispose of = 处理掉