Word · Frequency #40
if
如果；假如
Supposing that; used to introduce a condition that may be true or false.
- 1.
Supposing that, assuming that, in the circumstances that; used to introduce a condition that may be (or prove to be) either true or false.
假设,如果,在......情况下；用于引入一个可能为真或为假的条件。
- 2.
Supposing that; used with past or past perfect subjunctive to indicate a counterfactual or hypothetical condition.
假设；与过去或过去完成时虚拟语气连用,表示反事实或假设条件。
- 3.
Considering the fact that; given that; introducing a condition that is known to be true.
考虑到......；鉴于；引入一个已知为真的条件。
- 4.
When; whenever; every time that.
当......时；每当；每次。
- 5.
Although; used to introduce a concession; may..but.
虽然；用于引入让步；可能......但......。
- 6.
Introducing a relevance conditional; in case.
引入相关性条件；万一。
假如；要是；既然；如果；每当；每次；虽然；尽管；如果；要是；万一
In use
If you heat ice, it melts.
If she calls, tell her I'm busy.
If I had more time, I would travel.
if + subject + present simple, subject + will + infinitive
真实条件句，表示很可能发生的情况。
If it rains, I will stay home.
如果下雨，我就待在家里。
if + subject + past simple, subject + would + infinitive
与现在事实相反的虚拟语气。
If I were you, I would study harder.
如果我是你，我会更努力地学习。
if + subject + past perfect, subject + would have + past participle
与过去事实相反的虚拟语气。
If I had known, I would have come.
Connections
Collocations
- if only
- 要是…就好了；但愿
- If only I had more time, I would visit you.要是我有更多时间，我就去看你了。
- if so
- 如果是这样
- Are you free tonight? If so, let's have dinner.你今晚有空吗？如果是这样，我们一起吃晚饭吧。
- if not
- 如果不是这样；否则
- We need to finish today; if not, we'll miss the deadline.我们今天必须完成；否则就会错过截止日期。
- if possible
- 如果可能的话
- Please let me know if possible by tomorrow.如果可能的话，请在明天之前告诉我。
- if necessary
- 如果有必要
- You can call me if necessary.如果有必要，你可以给我打电话。
- if any
Learner notes
Memory Tip
把'if'想成一把锁，‘如果’有钥匙就能打开。
Context & Register
neutral
Pronunciation & Spelling
All words ending with -iff rhyme with /ɪf/. Beware that 'off' (/ɒf/) looks similar but sounds different.
High-value vocabulary
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
Usage priority
Collins 词频等级为 5，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from AI_FALLBACK, DICTIONARY_API_DEV, ECDICT, WIKTIONARY.