现在进行时——表示正在做某事
A、构成形式：主语+be动词+动词的ing形式+其他。
B、判断依据：句中往往有now、look、listen等词。注意：千万不要忘了一定得有be动词。
练一练：
A、用所给的动词的正确形式填空。
1) The boy ______ ______ ( draw ) a picture now.
2) What______you ______ ( do ) now?
3) Listen. Some girls ______ ______ ( sing ) in the classroom.
4) My mother ______ ______ ( cook ) some nice food now.
5) Look. They ______ ______ ( have ) an English lesson.
6) They ______ ______ ( not water ) the flowers now.
7) Look! the girls ______ ______ ( dance )in the classroom.
8) What is our granddaughter doing? She ______ ______ ( listen ) to music.
9) ______ Helen ______ ( wash )clothes? Yes, she is .
B、根据中文，完成句子，每空一词。
1) 刘涛的父亲正在浇花。
Liu Tao’s father is ______ ______.
2) 看，孩子们正在操场上踢足球。
Look! The children ______ ______ ______ in the playground.
3) 她正在公园里散步吗?是的。
- _____ she______a walk in the park?
-Yes, she______.
4) Jack正在哪读书?在他书房。
- ______ ______ Jack ______ the book now?
-He is______ ___ ___ ______.
