【seem后接动词不定式的用法】在英语中,“seem”是一个非常常见的系动词,通常用于表达一种“看起来像……”或“似乎……”的意思。除了后面可以直接跟形容词或名词外,“seem”还可以接动词不定式(to do),用来表达某种可能性或推测。
下面是对“seem后接动词不定式”的用法进行总结,并通过表格形式展示其常见结构和例句,帮助读者更好地理解和掌握这一语法点。
一、用法总结
1. seem + to do:表示“看起来/似乎做某事”,强调一种主观判断或推测。
2. seem + to be doing:表示“正在看起来像……”,强调动作的持续性。
3. seem + to have done:表示“似乎已经做了某事”,强调过去的动作对现在的影响。
4. seem + that从句:虽然不直接接动词不定式,但常与“seem to do”结构互换使用,表达类似意思。
需要注意的是,虽然“seem”可以接动词不定式,但这种结构不如“seem + 形容词”常见,多用于书面语或正式场合。
二、用法对比表
| 结构 | 含义 | 例句 |
| seem + to do | 看起来/似乎做某事 | He seems to know the answer. |
| seem + to be doing | 看起来正在做某事 | She seems to be waiting for someone. |
| seem + to have done | 看起来已经做了某事 | They seem to have finished their work. |
| seem + that从句 | 看起来……(从句中可用动词原形) | It seems that he is not coming. |
三、注意事项
- “seem to do”结构中,“to do”是不定式,不能省略。
- 在口语中,有时会省略“to”,如:“He seems (to) know the answer.” 但在正式写作中应保留“to”。
- 与“appear”类似,“seem”后接不定式时,语气较为委婉,不带有绝对肯定的意味。
四、常见搭配与误用
| 正确用法 | 错误用法 | 说明 |
| He seems to understand. | He seems understand. | 不定式必须带“to”。 |
| She seems to be working hard. | She seems working hard. | “be doing”结构需保留“to be”。 |
| They seem to have left. | They seem have left. | “have done”前需加“to”。 |
通过以上总结和表格,可以看出“seem后接动词不定式的用法”虽不常见,但在表达推测和不确定性时非常实用。掌握这些结构有助于提升英语表达的准确性和自然度。
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