文档介绍：??(说话瞬间)正在进行或发生的动作。通常和now,look,:1)Listen!))---Whatareyoudoing?---)---Whatclassareyouhavingnow?---+be+(现在分词)V-ing+其它动词be随人称变为is,am,areI→am,he/she/it→is,You/they→,通常和today,thisweek,thismonth等词连用。Eg:1)):主语+be+doingTomisdoinghishomework. 第一人称+am+doing 第二人称+are+doing 第三人称+is+doing  I’m/You’re/He’s/She’s/We’re/They’reworking. 口诀:我用am,你用are,is用在他她它。单数名词使用is,复数名词使用are。)直接加-ing 如: open—opening clean—cleaning sing—singingstudy—studying work—working 2)以不发音字母e结尾,去e加-ing 如: ing live—living take—takingmake—making dance—dancing close—closing drive—driving write—writing use—using 但是see—seeing 以ie结尾的动词:lie—lying die—)以“辅音字母+一个元音字母+一个辅音字母”结尾的重读闭音节且末尾只有1个辅音字母时,双写这个辅音字母,再+ing 如:sit—sitting run—running put—putting get—getting begin—beginning swim—swimming shop—shopping stop—,be加动词-ing;直加双写去哑e,分词构成须仔细;别说be词无词义,主语和它最亲密;变疑问be提前,否定not再后添;何时要用进行时look,listen, ingseeingdyinghelpingeatinggivinglying10.