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1、语法专题现在进行时,现在进行时,一、含义：现在进行时表示现在（即说话人说话的时刻）正在进行的动作或正在发生的事情，现在进行时的标志性词语有now,look,at the moment,listen等,二、现在进行时基本结构,主语+be动词+动词的现在分词,I,am,He/She,We/You/They,is,are,writing.,speaking.,running.,结构:be+doing(be要根据主语作人称和数的变化),用现在进行时完成下列句子:1.What _ you doing?2.I_ singing an English song.3.What _she drinking?4.
2、He_ driving a car.5._ you flying a kite?Yes,_.6._ she sitting in the boat?7._you asking questions?8.We _ playing games now.,are,am,is,is,Are,I am,Is,Are,Exercises,are,现在进行时,现在分词的构成规则：1.一般在动词词尾加-ing，如：read-reading 2.以不发音e结尾，去e加-ing，如：write-writing 3.以重读闭音节结尾的动词，末尾只有一个辅音字母，应先双写这一字母，再加-ing。Eg：swim-swim
3、ming run-running cut-cutting shop-shopping sit-sitting特殊变化：lie-lying平躺，die-dying死亡,请写出下列动词的现在分词,speakplaytalksinglistendo,writedrivedance,sitputswimputrun,speaking,playing,talking,singing,listening,doing,writing,driving,dancing,sitting,putting,swimming,putting,running,现在进行时,现在进行时的四种句式：1.肯定句主语+be+doi
4、ngEg:I am doing my homework.2.否定句主语+be+not+doingEg:I am not doing my homework.3.一般疑问句be提到句首（注意人称变化）Eg:Are you doing your homework?4.特殊疑问句：特殊疑问词+一般疑问句Eg:What are you doing now?,句型转换1.肯定句转换成否定句,要在 be 后加 not 构成eg:We are reading English now.We are not reading English now.2.陈述句转换成一般疑问句,把be动词提到句首eg:The st
5、udent is drinking.Is the student drinking?3.陈述句转换成特殊疑问句,由“疑问词+一般疑问句”构成eg:He is working.What is he doing?,句型转换：1.They are cleaning the house.（一般疑问句）3.Tom is singing.（改为否定句）4.Kate is_（划线提问）5.She is sitting _（划线提问）,putting on her new skirt.,near the window.,Are they cleaning the house?,Tom is not singi
6、ng.,What is Kate doing?,Where is she sitting?,Some exercises.用现在进行时改写下列句子.1.She sits under the tree.She is sitting under the tree.2.I eat a hamburger and some fruit.I am eating a hamburger and some fruit.3.They clean the classroom They are cleaning the classroom.,1.The child _the windows now.(open),
7、2.The boy _ a picture now.(draw),3.Look!She _ a book.(read),4.I _an e-mail to my pen pal now.(write),5.You _ your homework at home now.(do),6.We _ at school now.(run),7.They _ TV now.(watch),is opening,is drawing,is reading,am writing,are doing,are running,are watching,Fill in the blanks:,用所给动词的适当形式
8、填空1.Look!Andy_(fly)a model plane.2.Listen!Amy_(sing)in the next room.3.Many students_(play)football in the football field now.4.Father isnt at home.He _(work).5.Its seven oclock now.His father _(watch)TV.,is flying,is singing,are playing,is working,is watching,Thank you Bye-bye!,6.Kitty_(dance)with
9、her friends.Cant you see?7.-Where is Millie?-She_(chat)with her classmates in the classroom.8.-What_Simon_(do)?-He_(draw)a picture on the blackboard.9.-_the girls_(sing)?-No,they_(shout).10.Dont talk with me,please.I _(do)my homework.,is dancing,is chatting,is,doing,is drawing,Are,singing,are shouting,am doing,
