英语的逗号(功能:分隔,但句子未完):
相当于汉语的顿号(、),列举并列的成分;
He loves reading books, sining and playing basket ball.
分隔修饰成分,也就是句子的状语或定语可以用逗号与句子的其它成分分隔,但并不总是用逗号;
When you arrive, please let me know.
The boy, who has arrived here, will come to my office.
并列句之间可以加逗号,但须带有并列连词;
He got up late, and he had to hurry.
主语谓语、谓语宾语、系动词表语、谓语宾语宾补之间是不能用逗号的;(五个基本句型中间是不带逗号的)
He walks. I love you. He is my brother. He made me happy.
在直接引语中可以有逗号;(He said, “I don't believe you.")
刚问过度娘