现在进行时一、定义：表示目前或目前阶段正在进行的动作。 二、结构： am/is/are + 动词的-ing 形式 三、用法： 1.表示目前发生(进行)的动作(不指状态),常用时间状语有:now,at the moment 等,并常出现在祈使句的句子中,与 look, listen,quite 连用. eg. Are you writing a letter to your father at the moment? Listen! She is singing in the next room. 2.表示目前阶段正在进行,而此刻不一定在进行的动作. eg. They are planting trees these days. 3.表示按计划或安排即将进行的动作,表示这种动作的动词有:come, go, leave, arrive, start, see等,并常与表示将来时间的状语连用. eg. They are leaving for Australia tomorrow afternoon. 注意: 某些表示感觉或状态的动词,如 love, like, prefer, hate, see, know 等一般不用现在进行时. eg. Lucy prefers art to science. 练习题： ( ) 1. Maria is _ TV now .A. watching B. looking C. seeing D. reading ( ) 2. The students are _ their homework.A. Writing B. doing C. cleaning D. playing with ( ) 3. Its six oclock in the afternoon .Mr and Mrs Green are _ dinner. A. eating B. doing C. havving D. waiting ( ) 4. My grandfather often _ newspapers in the afternoon.A. wathches B. sees C. reads D. looks at ( ) 5. They are _ English.A. reading B. watching C. saying D. looking ( )6Tom _ his bed every morning.Amake Bmaking Cmakes Dmakeing( )7My mother _ cooking for us. Aam Bis Cbe Dare( )8_ your brother playing chess with Jack? Aare Bis CDoes DIs( )9What is Mary doing? Shes _ something. Alook at Blook like Clooking for Dlooking( )10The women are _ in the park. Amake photos Btaking photosCmaking photo Dtakeing photo