动词双写加ing形式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！ ！beginbeginningcutcuttingdigdigginggetgettinghit -hittinglet -lettingputputtingrunrunningsetsettingshutshuttingsit -sittingspit -spittingsplit -splittingswim1swimmingwinwinningbegbeggedbeggingdripdrippeddrippingdotdotteddottingdropdroppeddroppingfitfittedfittinghughuggedhuggedplanplannedplanningpatpattedpattingridriddedriddingrobrobbedrobbingrebetrebettedrebettingregretregrettedregrettingstopstoppedstoppingstirstirredstirringrubrubbedrubbingtravel -travel(l)edtravellingwhipwhippedwhipping现在进行时1 .现在进行时表示现在正在进行或发生的 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： 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 swimmakego likewrite skiread have singdanceput see buylovelive take comegetstop sitbegin shop二、用所给的动词的正确形式填空：I.The boy(draw)a picture now.2. Listen .Some girls (sing)in the classroom .3. My mother(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 )clothe s? Yes ,she is .三、句型转换：1. They are doing housework .(分另 U 改成一般疑问句和否定句)2. The students are cleaning theclassroom .(改一般疑问句并作肯定和否定回答)3. Im playing the football in the playground .（对划线部分进行提问）4. Tom is reading books in his study .（对划线部分进行提问）