四年级上册英语语法总结一、正在进行时：1、肯定句:主语+be（am， is， are）+动词 ing+其他例:1)She is reading a book 。 2）He’s taking pictures 。 3）I am listening to music. 4) They're playing chess。5) They're drinking milk。 6) She is riding the horse。2、...

时间:2025-04-10 07:49栏目:行业资料