ENGLISH

“情态动词:推断现在的事” (Modals: deductions about the present)

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约 6 分钟· #B1
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  • 推断过去要加 have + 过去分词,推断现在的情况就单纯多了,情态动词后面直接接原形动词。
  • must 表示几乎确定(一定是),can't 表示几乎确定不是(不可能)。
  • might / may / could 表示不确定但有可能,三者意思相近,may 最正式,might/could 口语更常用。
  • 所有情态动词后面都接原形动词,不能再加 be 动词(不是 must is,而是 must be)。
  • B1 核心语法,生活对话和考试都常见,跟上一篇推断过去的用法正好对照。

重点内容


must — 十分确定(一定是)

当你几乎确定某件事是真的,用 must

  • This must be her house. I can see her car in the garage.
    → 这一定是她家,我看到她的车在车库。
  • He must live near here because he always walks to work.
    → 他一定住在附近,因为他每次都走路上班。
  • You must be freezing out there!
    → 你在外面一定冻死了!

might / may / could — 可能(不确定)

认为某件事可能是真的,但不肯定,三个词意思相近。

  • She's not here yet. She might be stuck in traffic.
    → 她还没到,可能堵车了。
  • He's not answering. He could be in class.
    → 他没接电话,可能在上课。
  • Some services may be delayed due to the bad weather.
    → 部分服务可能因天气延误。

📌 may 最正式(多用于书面、官方通知),mightcould 日常口语更常用。


can't — 十分确定(不可能)

当你几乎确定某件事不是真的,用 can't

  • It can't be far now. We've been driving for hours.
    → 不可能还很远,我们已经开了好几个小时了。
  • She can't know about the complaint. She's promoted him to team leader.
    → 她不可能知道投诉的事,不然不会升他当组长。
  • It can't be easy for him, looking after three kids on his own.
    → 一个人照顾三个孩子,对他来说一定不容易。

📌 所有情态动词后面都接原形动词(infinitive without to)。


例句练习

英文中文
She must be tired. She's been working since 6 a.m.她一定累了,从早上六点工作到现在。
That might be John's car outside.外面那辆可能是 John 的车。
He can't be at home. His lights are all off.他不可能在家,灯全都关着。
It could be a mistake in the report.这可能是报告里的错误。
This can't be the right address. There's nothing here.这不可能是正确地址,这里什么都没有。

常见错误

❌ She must is tired. ✅ She must be tired. (情态动词 + 原形动词,不能再加 is)

❌ It can't be easy for he. ✅ It can't be easy for him. (介词后面要用宾格 him,不是主格 he)

❌ He might is at work. ✅ He might be at work. (might 后面直接接原形 be)


Sources

Blog / Website:

  1. Modals: deductions about the present – British Council
📝 语法点共 4 题
📝 常见错误辨析共 3 题