二、句 子的种类

1、简单句 (只有一个谓语动词)

2、并列句 (有两个谓语动词以上，用并列连词连接起来，他们的地位是平列的)

3、复合句 (有连个以上的谓语动词，其中一个是主句的谓语动词，其他都是从句的谓语动词 )

She is laughing. She opened the door. She is a girl.

主 + 谓（vi） 主 + 谓（vt） + 宾 主 + 谓 (link-v) +表

She is a girl and he is a boy. She is a girl and comes from Beijing. She is clever but doesn’t work hard.

I didn’t go out because it rained a lot. I want to be a doctor when I grow up.