句號 結(jié)束一個陳述句或祈使句
He is a singer.
結(jié)束一個間接疑問句 I asked him what the word meant.
略縮語后 Mr.Zhang,Mrs.Green
問號 直接疑問后 What are you reading?
使用陳述句反問時
Lucy is your sister?
加強語氣 Who do you mean? To blame her?
To retreat?
冒號 引出對主要句子的解釋或
總結(jié) The essay is poorly written:no new ideas,no new expression.
引出同位成分 He has two best friends:Tom and Jack.
分號 連接兩個并列分句 Mary stayed there;I would not leave.
引號 標出強調(diào)詞或具有特殊意
義的詞 To rob her of her money,that's his "kindness"
表示直接引語
Jane yelled at her,"Are you crazy?"
逗號 隔開補充說明的成分 Your requirement,I regret to inform you,has been turned down.
分開連接列舉的東西 The hero in the novel is brave,honest,and kind.
將句中的狀語短語或狀語
從句分開 It being fine,we went for a walk.
簡短而聯(lián)系緊密的句子
也可不用逗號分開 The professor came in and everyone stood up.
分開兩個用and,or,but
for,yet等連詞引導的并
列句 I was born in Xi'an,and my parents live there.

