你好，很高興回答您的問題！for和of是英文中常用的兩個介係詞。for這個介係詞在英文中的基本含義是“為了”，即表示目的或原因，還可以引導一個間接賓語。如：Isn"t that enough for you?I have some free advice for you.a room for rent.Tom left for New York.The train for New York has already arrived.of這個介係詞在英文裡的基本含義是“的”，構成名詞的所有格形式，用在兩個名詞之間，如：The door of the room is open.I know the mother of the boy.The doors of the car are closed.The problem of air pollution in cities is getting more and more serious. 在形式主語的句子中（it句型中）for 某物（某事）對於某人，如： it"s good for us to do sports every day.of 是指某人的品格，如： it"s kind of you to help my English.
你好，很高興回答您的問題！for和of是英文中常用的兩個介係詞。for這個介係詞在英文中的基本含義是“為了”，即表示目的或原因，還可以引導一個間接賓語。如：Isn"t that enough for you?I have some free advice for you.a room for rent.Tom left for New York.The train for New York has already arrived.of這個介係詞在英文裡的基本含義是“的”，構成名詞的所有格形式，用在兩個名詞之間，如：The door of the room is open.I know the mother of the boy.The doors of the car are closed.The problem of air pollution in cities is getting more and more serious. 在形式主語的句子中（it句型中）for 某物（某事）對於某人，如： it"s good for us to do sports every day.of 是指某人的品格，如： it"s kind of you to help my English.