3.基本结构:Be动词(am/is/are)+doing 4.否定形式:Be动词(am/is/are)+not+doing. 5.特殊疑问句:把be动词放于疑问词的后面。 6.例句:How are you feeling today? He is doing well in his lessons. 7. 一般表示位移的词如leave fly arrive go come. 等用现在进行时表将...