關系代詞意思

關係代詞（Relative Pronouns）是用來連接句子中的兩個名詞或名詞短語，用來引導關係子句（Relative Clauses），用來修飾先行詞（Antecedent），提供更多的資訊。以下是常用的關係代詞：

1. Who/Whom - 用於指人，who 可以用於主格或賓格，whom 則只用於賓格。

   • Who used the computer yesterday? (主格)
   • Who did you talk to on the phone? (主格)
   • Whom did you give the book to? (賓格)

2. That - 可以用於指人或物，在關係子句中作主語或賓語。

   • The person that won the lottery is my neighbor.
   • The book that you lent me is very interesting.

3. Which - 用於指物，在關係子句中作主語或賓語。

   • The car which I bought last month is very fuel-efficient.
   • The movie which we watched last night was fantastic.

4. Whose - 用於指明某人的或某物的，表示所有格。

   • The girl whose dog was lost is very sad.
   • The house whose roof is leaking needs repairs.

5. Where - 用於指明地點，作為關係副詞使用。

   • The restaurant where we had dinner last night was very romantic.
   • The park where I played as a child has changed a lot.

6. When - 用於指明時間，作為關係副詞使用。

   • The day when I met her was the happiest day of my life.
   • The year when I graduated from college was 2010.

關係代詞在句子中的作用是將先行詞和關係子句連接起來，提供更多的資訊。例如：

• The girl who won the competition is very talented.
• The book that you recommended is very good.
• The house which was built in the 1920s has a lot of character.
• The man whose car was stolen reported it to the police.
• The restaurant where we had dinner was very expensive.
• The year when I was born was 1990.

在使用關係代詞時，要注意先行詞的性質（人、物、地、時間），以及關係子句中的詞序（主語+動詞+其他）。此外，關係代詞在關係子句中通常不需要省略，除非它與先行詞重複，此時可以省略。