【正文】
g? is playing the suona, but the phone rings. is playing the suona again, but the bell rings. is playing the suona for the third time, but the dog starts to very loudly. 自學指導: 請同學們再讀對話, 重點讀短文中含有“ ing” 的句子 。 { 行為動詞原形 行為動詞后面 +s或 es 第三人稱單數 :he , she it,人名 如 : We play football. He plays football. 一般現在時 :表示經常發(fā)生的事情,動作或存在的狀態(tài) Daming is p