小学阶段必备的英语语法知识点，时态，句型，常用词大全，你需要的都在这儿了，多读几遍，记在脑子里哦！
1现在进行时
表示正在发生的事情或进行的动作，常与now,listen,look等词连用，结构是主语+be动词(am, is, are)+动词ing.
如：It is raining now. 外面正在下雨
It is six o’clock now. 现在6点了
My parents are reading newspapers in the sitting room.
我父母正在客厅看报纸
Look! The children are having a running rac
