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1、小学四年级现在进行时现在进行时预习资料 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。 中文翻译：正在 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ing think-thinking sleep-sleeping study-studying look-looking tell -telling sing-singing play-playing ema
2、il-mailing go-going teach-teaching 2 以不发音的字母e结尾的单词,去掉字母e，再加ing come-coming make-making have-having take-taking wake-waking 3 以重读闭音节结尾，通常呈现 “辅+元+辅”结构的动词，双写末尾的辅音字母，再加ing stop-stopping get -getting sit -sitting put-putting run-running shop-shopping swim-swimming 三、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.
3、 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：We arent running now. 3、一般疑问句式结构：Be+主语+动词-ing形式+其他？ 例如：Are they running now？ 回答：肯定Yes, they are. 否定:No, they arent 4.特殊疑问句式结构：疑问词+be+主语+其他？ 例如:What are they doing now? 回答：They are running. 四、Be动词的人称对应 第一人称单数：I am doing 第二人称单数：You are doing 第三
4、人称单数：He is doing、Lily is doing、My mum is doing. 所有的复数人称：We are doing、They are doing、The policeman are doing 五、朗读例句 1.I am doing my homework now. 2.I am emailing my friends. 3.I am running in the park. 4.I am singing in the music room. 5.You are doing housework. 6.You are watching TV. 7.You are havin
5、g an English lesson. 8.You are having a picnic. 9.Look! My mother is running. 10.He is sleeping. 11.Listen! The girl is singing with the bird. 12.Now Jiamin is reading an interesting book. 13.Listen! They are reading. 14.Look! The children are painting. 15.They are cooking meals. 16.The teachers are
6、 having lunch. 17.Are you doing housework? 18.Are you watching TV? 19.Is your mum running? 20.Is he sleeping? 21.Are they cooking? 22.Are the teachers having dinner? 23.What are they doing? 24.What is he doing? 六、试一试 1.Look!Mary_singing there. 2.I _ taking photos in the garden. 3._you reading a book
7、? 4.The boy _ playing football with his friends. 5.My sister _ playing computer games. 6.The children _ having an art lesson. 7.The girl _ swimming. 8.I _ washing hands 9.What _ you doing？ 10.The policewoman_ wearing uniforms. 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
8、_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
9、 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
10、 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. sing 2. Its eight oclock. The students _ an E
11、nglish class. A. have B. having C. is having D. are having 3. Listen! The baby _ in the next room. A. crying B. cried C. is crying D. cries 4. Look! The twins _ new sweaters. A. are wearing B. wearing C. are wear D. is wearing 5. Dont talk here. Grandparents _. A. is sleeping B. are sleeping C. slee
12、ping D. sleep 6. Tom is a worker. He _ in a factory. His sisters _ in a hospital. A. work/ work B. works/ work C. work/ works 7. Who _ English best in your class? A. speak B. speaks C. speaking 8. Mrs. Read _ the windows every day. A. is cleaning B. clean C. cleans 9. We _ music and often _ to music
13、. A. like/ listen B. likes/ listens C. like/ are listening 10. She _ up at six in the morning. A. get B. gets C. getting 11. On Sundays he sometimes _ his clothes and sometimes _ some shopping. A. wash/ do B. is washing/ is doing C. washes/ does 12. The twins usually _ milk and bread for breakfast, but Jim _ some coffee for it. A. have/ have B. have/ has C. has/ have
