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1、语法专题现在进行时现在进行时现在进行时一、含义：一、含义： 现在进行时现在进行时表示现在（即说话人说话的时刻）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行时的标志性词语有now, look, at the moment, listen等等二、现在二、现在进行时基本结构进行时基本结构主语主语 + be动词动词 + 动词的动词的现在分词现在分词IamHe / SheWe / You / They isarewriting.speaking.running.结构结构结构结构: be+doing ( be要根据主语作人称
2、和数的变化要根据主语作人称和数的变化)现在进行时现在进行时现在进行时的四种句式：现在进行时的四种句式：1.1.肯定句肯定句主语主语+be+doingEg: I am doing my homework.2.2.否定句否定句主语主语+be+not+doingEg: I am not doing my homework.3.3.一般疑问句一般疑问句bebe提到句首（注意人称变化）提到句首（注意人称变化）Eg: Are you doing your homework?4.特殊疑问句：特殊疑问词特殊疑问句：特殊疑问词+一般疑问句一般疑问句Eg: What are you doing now?句型转换句
3、型转换句型转换句型转换1.肯定句转换成否定句肯定句转换成否定句,要在要在 be 后加后加 not 构成构成eg:We are reading English now. We are not reading English now.2.陈述句转换成一般疑问句陈述句转换成一般疑问句,把把be动词提到句首动词提到句首eg:The student is drinking. Is the student drinking?3.陈述句转换成特殊疑问句陈述句转换成特殊疑问句,由由“疑问词疑问词+一般疑问句一般疑问句”构成构成eg:He is working. What is he doing?现在进行时现在
4、进行时现在分词的构成规则：现在分词的构成规则：1.一般在动词词尾加一般在动词词尾加-ing，如如：read-reading 2.以不发音以不发音e结尾，去结尾，去e加加-ing，如如：write-writing 3.以重读闭音节结尾的动词，末尾只有一个辅音字母，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，再加应先双写这一字母，再加-ing。Eg：swim-swimming run-running cut-cutting shop-shopping sit-sitting特殊变化特殊变化：lie-lying平躺，平躺，die-dying死亡死亡用现在进行时完成下列句子用现在进
5、行时完成下列句子:1. What _ you _(do)?2. I_ (sing) an English song.3. What _she _(drink)?4. He_ (drive) a car.5. _ you _(fly) a kite? Yes, _.6. _ she _ (sit) in the boat?7. _you _ (ask) questions?8. We_ (play) games now.are playingdoingaream singingisdrinkingis drivingAre flying I am IssittingAreaskingSome e
6、xercises.一、用现在进行时改写下列句子一、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) 2.The boy _ a picture now.(draw)3.L
7、ook! 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 openingis drawingis readingam writingare doingare runningare watching二、用所给动词的适当形式填空二、用所给动词的适当形式填空1.Look! Andy_(fly) a model plane.2.Listen! Amy_
8、(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.isis flyingflyingis singingare playingis workingis watching6.Kitty_(dance)with her friends. Cant you see?7. -Where is Millie? -She_(chat)
9、 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 dancingis chattingisdoingis drawingAresingingare shoutingam doing句型转换：句型转换：1.They are cleaning the house.（一般疑问句）（一般疑问句）3.Tom is singing.（改为否定句）（改为否定句）4.Kate is_（划线提问）（划线提问）5.She is sitting _ （划线提问）（划线提问） putting on her new skirt. near the window.Are they cleaning the house?Tom is not singing.What is Kate doing?Where is she sitting?
