初一英语语法——时态-凯发k8国际首页登录

　　1、一般现在时

　　表示普遍、经常性的或长期性的动作时使用一般现在时，它有：

　　be 动词：

　　she's a worker. is she a worker? she isn't a worker.

　　情态动词：

　　i can play the piano. can you play the piano? i can't play the piano.

　　行为动词：

　　they want to eat some tomatoes. do they want to eat any tomatoes?

they don't want to eat any tomatoes.

　　gina has a nice watch. does gina have a nice watch? gina doesn't have a watch.

　　2、现在进行时

　　表示动词在此时正在发生或进行就使用进行时态，结构为sb be v-ing sth 其它.

　　i'm playing baseball. are you playing baseball? i'm not playing baseball.

　　nancy is writing a letter. is nancy writing a letter? nancy isn't writing a letter.

　　they're listening to the pop music. are they listening the pop music?

they aren't listening to the pop music.