從句是什麼意思

從句(Subordinate Clause)是句子的一種,它用來修飾另一個主要子句(Main Clause),或者說是從屬於主要子句。從句通常用連接詞(如 because, although, when, if 等)來連接,並且不能單獨成為一個完整的句子。從句可以依其功能分為幾種類型,例如:

  1. 名詞從句(Noun Clauses):用來擔任句子中的名詞功能,可以當作主詞、賓語、補語等。例如:

    • 主詞:What he said is not true.
    • 賓語:I don't know who you are talking about.
    • 補語:The question is whether we should go or not.
  2. 形容詞從句(Adjective Clauses):又稱為修飾從句或關係從句,用來修飾名詞或代名詞,通常由關係詞(who, which, that 等)引導。例如:

    • The man who is speaking is our boss.
    • The book that you recommended is very interesting.
  3. 副詞從句(Adverb Clauses):用來修飾主要子句中的動詞、形容詞或副詞,通常由連接詞(如 because, although, when, if 等)引導。例如:

    • I can't go because I'm busy.
    • Although he tried his best, he failed.

從句在英文句子中是很常見的結構,它們使得句子能夠更細膩地表達複雜的思想和關係。