什么是介词短语?
介词短语(Prepositional Phrase)是由一个介词(如 in, on, at, by, with 等)加上其宾语(通常是名词或代词)构成的短语。它在句子中可以充当形容词、副词或名词成分。
介词短语的基本结构
结构公式: 介词 + 宾语(名词/代词)
- in the morning(在早上)
- on the table(在桌子上)
- with my friends(和我的朋友们)
- about this topic(关于这个话题)
介词短语在句中的作用
- 作定语(形容词性):The book on the shelf is mine.
- 作状语(副词性):She walked through the park.
- 作表语(较少见):The keys are under the mat.
常见介词短语示例
- at home, at school, at work
- in time, in trouble, in love
- on purpose, on vacation, on fire
- by chance, by hand, by bus
- with care, with joy, with confidence
学习建议
记忆介词短语时,建议结合语境理解,而非死记硬背。多阅读英文文章、观看英语视频,并尝试在写作和口语中主动使用这些短语。