四年级英语语法：现在进行时

现在进行时态一.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。二.构成：由be(am/is/are)+动词-ing形式构成三.标志性词语：现在进行时.通常用now,look,listen等词。四.动词现在分词的构成规则1一般情况下直接加ing （直）think-thinkingsleep-sleepingstudy-studyingspeak-speakingsay- sayingcarry-carrying2以不发音的字母e结尾的单词,去掉字母e，再加ing（去）come-comingmake-makingleave-leavinghave-havingtake-takingwake-wakingtake-taking3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（双）stop-stoppingget-gettingsit-sittingput-puttingsit-sittingrun-runningshop-shoppingswim-swimming五、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）六、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.4、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.现在进行时态练习题一.选择题1.Who _ over there now?A. singing B. are singC. is singing D. sing2. Its eight oclock. The students _ an English class.A. have B. havingC. is having D. are having3. Listen! The baby _ in the next room.A. crying B. criedC. is crying D. cries4. Look! The twins _ new sweaters.A. are wearing B. wearingC. are wear D. is wearing5. Dont talk here. Grandparents _.A. is sleeping B. are sleepingC. sleeping D. sleep二.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.三.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：_2.They are singing in the classroom.否定句：_一般疑问句：_肯定回答：_否定回答：_四、用所给动词的正确形式填空。1.The boy _ ( draw) picture now.2.Listen, Some girls _ ( sing) in the classroom.3.My mother _ (cook) some nice cakesnow.4.What _you always _ (do) on Saturday?5.Look, they _ ( have) an English lesson.6.They _ ( sit) on the chair now.7.The girls sometimes _ (dance) in the classroom.8.-Whatis our mother doing?-She is _ ( listen) to music.9.Its 5 o clock now. We _ ( have)dinner now.10.-_Helen _ ( wash) clothes now?-Yes, she is.11.Mr Zheng _ ( read) a book now.12.The rabbits _ (jump) now.13.Look! Tom and John are _ ( swim).14.My brother is _ ( read) a book in his room now.15.The buses usually _ ( come) here a thalf past four.参考答案：温馨提示：以下内容为本公众平台老师在业余时间人工整理，如发现有错误，欢迎大家留言指正。一、C D C A B二、1 are doing 2am singing 3 is mending 4 ismending 5 Are flying, I am. 6 Is sitting7Are asking 8 are playing 9 doing am eating 10 is working三、1. The boy isnt playing basketball.Is the boy playing basketball?Yes, he is.No, he isnt.2.They arent singing in the classroom.Are they singing in the classroom?Yes, they are.No, they arent.四、1. is drawing2. are singing 3. is cooking 4