1、4、动词加ing的变化规则一般在动词原形后+ing do ask doing asking以不发音的e结尾的,去e,+ing write take dance writing taking dancing重读闭音节以一个辅音字母结尾的,双写这一字母+ing get run swim put begin getting running swimming putting beginning5、现在进行时的句式A、(1)I am reading a book. (2)He is listening to music. (3)My mother is sweeping floor. (4)The do
2、g is running after the cat. (5) They are making the bed. (6) My sister and I are doing homework. (7) Tom and his sister are playing football.以上句子为:肯定句,其结构可总结为:主语+be +v-ing+其它.B:(1)I am not reading a book. (2)He isnt listening to music. (3)My mother isnt sweeping floor. (4)The dog isnt running after
3、the cat. (5) They arent making the bed. (6) My sister and I arent doing homework. (7) Tom and his sister arent playing football.否定句,其结构可总结为:主语+be +not+v-ing+其它.C:(1)Are you reading a book? Yes, I am. /No, Im not.(2)Is he listening to music? Yes, he is. / No, he isnt. (3)Is your mother sweeping floor
4、? Yes, she is. / No, she isnt.(4)Is the dog running after the cat? Yes, it is. / No, it isnt.(5) Are they making the bed? Yes, they are. /No, they arent.(6) Are you and your sister doing homework? Yes, we are./No, we arent.(7) Are Tom and his sister playing football? Yes, they are./No, they arent.一般
5、疑问句,直接把be提前,肯定回答:Yes,主语 +be。 其中要特别注意be动词的变化。D:(1) What are you doing? I am reading a book. (2) What is he doing?He is listening to music. (3) What is your mother doing? My mother is sweeping floor. (4) What is the dog doing? The dog is running after the cat. (5) What are they doing?They are making t
6、he bed. (6) What are you and your sister doing? My sister and I are doing homework. (7) What are Tom and his sister doing? Tom and his sister are playing football.特殊疑问句,借助特殊疑问词,用实际情况回答。 其中要特别注意be的变化。一、选择题练习1. Who _ over there now? A. singing B. are sing C. is singing D. sing2. Its eight oclock. The
7、students _ an English class. A. have B. having C. is having D. are having3. Listen! The baby _ in the next room. A. crying B. cried C. is crying D. cries4. Look! The twins _ new sweaters. A. are wearing B. wearing C. are wear D. is wearing5. Dont talk here. Grandparents _. A. is sleeping B. are slee
8、ping C. sleeping D. sleep6. Tom is a worker. He _ in a factory. His sisters _ in a hospital. A. work/ work B. works/ work C. work/ works7. Who _ English best in your class? A. speak B. speaks C. speaking8. Mrs Read _ the windows every day. A. is cleaning B. clean C. cleans9. We _ music and often _ t
9、o music. A. like/ listen B. likes/ listens C. like/ are listening10. She _ up at six in the morning. A. get B. gets C. getting11. On Sunday he sometimes _ his clothes and sometimes _ some shopping. A. wash/ do B. is washing/ is doing C. washes/ does12. The twins usually _ milk and bread for breakfas
10、t, but Jim _ some coffee for it. A. have/ have B. have/ has C. has/ have二、填空:1. My father always _(come) back from work very late.2. The teacher is busy. He _ (sleep) six hours a day. Joan _(sing) in the classroom. She often _ (sing) there.4. _ your brother _(know) Japanese?5. Where _ you _ (have) lunch every day?6. The girl _(like) wearing a skirt. Look! She _(wear) a red skirt today.三、写出下列动词的现在分词形式1. work_ sing_ play_ study_2. dance_ have_ write_ take_3. run_ sit_ shop_ swim_2
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