现在进行时讲与练

 现在进行时讲与练

　　定义：表示现在正在进行的动作和发生的事情。如：

　　The boy is reading news-

　　papers now.

　　◆ 结构

　　A. 陈述句： ... 助动词be + doing ... 即am / is / are +动词的-ing形式。如：

　　I am drinking a glass of orange juice.

　　Sandy is reading a book.

　　The students are playing football.

　　B.否定句： ...be + not + doing ... 即在be动词的后面直接跟 not。如：

　　I am not drinking tea now.

　　C. 疑问句： be+主语+doing...? 即把be动词提前。如：

　　I’m drinking a glass of orange juice.→ Are you drinking a glass of orange juice?

　　◆做一做， 想一想：

　　一、注意斜体单词和词组，用所给动词的正确时态填空。

　　1. Listen!The lovely girl            (sing). She often             (sing) after school.

　　2. Look! Two women            (work) and a man           　(ride) a bike.

　　3. I usually                    (fish) at weekends. Now I                (fish) by the river.

　　4. The students                     (have) an English class at the moment. They            (have) an English class every day.

　　二、用所学的知识按要求改写下列句子。

　　1. Millie is exercising in the Fit Club.(改为否定句)

　　Millie                                                       in the Fit Club.

　　2. I am drinking some Coke now. (改为一般疑问句)  any Coke now?

　　3. The Greens often shop in the shopping mall.(用now把原句改为现在进行时)

　　The Greens                                              in the shopping mall now.

　　4. They are cleaning the house at the moment. (对划线部分提问)

                                                                        at the moment?

　　5. The child is lying on the sofa. (改为复数句)

　　The                                    on the sofa.

　　Key:

一、 1. is singing;sings                 2. are working;is riding

　　3. fish; am fishing                  4. are having; have

　　二、 1. isn’t exercising

　　         2. Are you drinking

　　        3. are shopping

　　        4. What are they doing

　　        5. children are lying