现在进行时态的用法是什么?
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(1)表示(说话瞬间)正在进行或发生的动作.(2)也可表示当前一段时间内的活动或现阶段正在进行的动作.(二)谓语构成:be (am/ is/ are)+v-ing (动词的现在分词) I’m watching TV now.They’re playing football.(三)现在分词的构成.(1)一般情况下在动词词尾加ing.go→going ask →asking look→looking (2)以不发音的e结尾的动词,去掉e加ing.have →having take→taking make→making write→writing (3)以一个辅音字母结尾的重读闭音节,双写最后一个字母,再加-ing.get→getting sit→sitting put→putting run→running swim→swimming begin→beginning shop→shopping (四)现在进行时态的肯定式、否定式、疑问式及简略回答.(1)肯定式:be+v-ing She is singing in the next room.(2)否定式:be+not+v-ing The students aren’t cleaning the room.(3)一般问句:be动词提前.肯定答语Yes,主语+be,否定答语No,主语+be not.Are you playing the computer game?Yes,I am./No,I am not.(4)特殊问句:对谓语动词进行提问的:What+be +主语+doing+其他?What is the old man doing under the tree?对其他成份进行提问的,疑问词+一般疑问句?Where is the boy swimming?Who is she waiting for?三.现在进行时与一般现在时的区别 (一)现在进行时表示动作的暂时性,而一般现在时表示动作的习惯性和经常性 I am watching TV now.(暂时性) I watch TV every day.(经常性) (二)现在进行时可表示短暂性动作,而一般现在时表示长久性动作.Lucy is living in Beijing.(短时间居住) Lucy lives in Beijing.(长久性居住) (三)现在进行时表示的动作可带有感情色彩,而一般现在时所表述的动作通常是事实.You’re always forgetting the most important things.(责备) He is always helping others.(赞扬) He often helps others.(事实) (四)有些动词不能用进行时,know,understand,love,like,hate,wish,want,think,hope,have,believe,agree,hear,see,notice,等等.这些动词通常用一般现在时表示说话时发生的动作.I have a lot of friends here.She wants to buy a new bike.其他用法 (1)当句子中有now时,常表示动作正在进行,这时要用现在进行时.如:They are playing basketball now.现在他们正在打篮球.(2)以look,listen开头的句子,提示我们动作正进行,这时要用现在进行时.如:Listen!She is singing an English song.听,她正在唱英语歌.(3)表示当前一段时间或现阶段正在进行的动作,且此时有this week,these days等时间状语,这时常用现在进行时.如:We are making model planes these days.这些天我们在做飞机模型.(4)描述图片中的人物的动作,也为了表达更生动.此时也常用现在进行时.如:Look at the picture.The children are flying kites in the park.看这幅图,那些孩子正在公园放风筝.

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