1、就是这个单词后三个字母是“辅元辅”结构的话，那么就要双写最后一个字母了！begin beginningcut -cuttingdig -diggingget -gettinghit -hittinglet -lettingput -puttingrun -runningset -settingshut -shuttingsit -sittingspit -spittingsplit -splittingswim -swimmingwin -winningbeg-begged-beggingdrip-dripped-drippingdot-dotted-dottingdrop-dropped-d
2、roppingfit-fitted-fittinghug-hugged-huggedplan-planned - planningpat-patted-pattingrid-ridded-riddingrob-robbed-robbingrebet-rebetted-rebettingregret-regretted-regrettingstop-stopped -stoppingstir-stirred-stirringrub-rubbed-rubbingtravel - travel(l)ed-travel(l)ingwhip-whipped-whipping现在进行时1现在进行时表示现在
3、正在进行或发生的动作，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。2现在进行时的肯定句基本结构为be+动词ing.3现在进行时的否定句在be后加not。4现在进行时的一般疑问句把be动词调到句首。5现在进行时的特殊疑问的基本结构为：疑问词不达意 + be + 主语 + 动词ing?但疑问词当主语时其结构为：疑问词不达意 + be + 动词ing?动词加ing的变化规则1一般情况下，直接加ing，如：cook-cooking2以不发音的e结尾，去e加ing，如：make-making, taste-tasting3如果末尾是一个元音字母和一个辅音字母，双写末尾的辅音字母，再加ing，如：
4、run-running, stop-stopping现在进行时专项练习：一、写出下列动词的现在分词：play_ run_ swim _make_go_ like_ write_ _ski_read_ have_ sing _ dance_put_ see_ buy _ love_live_ take_ come _ get_stop_ sit _ begin_ shop_二、用所给的动词的正确形式填空：1.The boy _ ( draw)a picture now.2. Listen .Some girls _ ( sing)in the classroom .3. My mother _
5、( cook )some nice food now.4. What _ you _ ( do ) now?5. Look . They _( have) an English lesson .6.They _(not ,water) the flowers now.7.Look! the girls _(dance )in the classroom .8.What is our granddaughter doing? She _(listen ) to music.9. Its 5 oclock now. We _(have)supper now10._Helen_(wash )clothes? Yes ,she is .三、句型转换：1. They are doing housework .(分别改成一般疑问句和否定句)_2The students are cleaning the classroom . ( 改一般疑问句并作肯定和否定回答)_3Im playing the football in the playground .(对划线部分进行提问)_4Tom is reading books in his study . (对划线部分进行提问)
