现在进行时定义、构成、用法

译林英语5B专项练习（现在进行时）姓名 一、现在进行时的定义，构成，标志性词语定义：表示现在或现阶段正在进行或发生的动作或存在的状态。构成：由be(am/is/are)+动词-ing形式构成 标志性词语：1.现在进行时.通常用“now”。 2.现在进行时.通常用“look”。3.现在进行时.通常用“listen”。二、动词现在分词的构成规则1 一般情况下直接加 think- sleep- study- speak- say - carry- 2 以不发音的字母e结尾的单词,去掉字母e，再加ing come- make- leave- have- take- wake- take- 3 以重读闭音节（重读闭音节即两个辅音中间夹一个元音并且重读的音节）结尾，呈现 “辅，元，辅”结构的动词，双写末尾的辅音字母，再加ing stop- get - sit - put- sit- run- shop- swim- 三、现在进行时的用法（1）用来表示说话时正在进行或者发生的动作，（2）用来表示现阶段正在进行的动作（但说话时不一定在进行）四、现在进行时的句型变化1、肯定式结构：主语+be+动词-ing形式+其他.例如：We are running now.2、否定式结构：主语+be+not+动词-ing形式+其他.例如：They arent doing their homework.3、一般疑问句式结构：Be+主语+动词-ing形式+其他？例如：Is she having English lesson?回答：肯定Yes, she is. 否定:No, she isnt.? 特殊疑问句式结构：疑问词+be+主语+其他？例如:What is he doing now?回答：He is swimming.（现在进行时）巩固练习一. 写出下列动词的现在分词形式 work_ sing_ play_ study_ have _dance _ write_ take_run_sit_ shop_swim_ 二.按要求改写句子 1. The boy is playing basketball. 否定句：_一般疑问句：_肯定回答：_否定回答：_对“is playing basketball”提问：_对“The boy”提问：_2. They are singing in the classroom.否定句：_一般疑问句：_肯定回答：_否定回答：_对“are singing”提问：_对“in the classroom”提问：_三. 用现在进行时完成下列句子1. What _ you _ (do)?2. I _ (sing) an English song.3. What _ he _ (mend)?4. He _ (mend) a car.5. _ you _ (fly) a kite? Yes, _.6. _ she _ (sit) in the boat?7. _ you _ (ask) questions?8. We _ (play) games now.9. What are you _(do) now? I _(eat) bread.10. Its nine oclock. My father_(work) in the office.11. Look, the boy_(put) the rubbish into the bin.12. _he_(clean) the classroom? No, he isnt. He_(play).13. Where is Max? He_(run) on the grass.14. Listen, who_(sing) in the music room? Oh, Mary_(sing) there.四。选择题 1. Who _ over there now? A. singing B. are sing C. is singing D. sing2. Its eight oclock. The 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 sleeping 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 _ to 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 Sundays he sometimes _ his clothes and sometimes _ some shopping.A. wash/ do B. is washing/ is doing C. wa