就是這個(gè)單詞后三個(gè)字母是“輔－元－輔”結(jié)構(gòu)的話，那么就要雙寫(xiě)最后一個(gè)字母了??！begin

beginning

cut----

cutting

dig----

digging

get----

getting

hit----

hitting

let----

letting

put----

putting

run----

running

set----

setting

shut----

shutting

sit----

sitting

spit----

spitting

split----

splitting

swim----

swimming

win----

winning

beg

----

begged

----

begging

drip

----

dripped

----

dripping

dot

----

dotted

----

dotting

drop

----

dropped

----

dropping

fit

----

fitted

----

fitting

hug

----

hugged

----

hugged

plan

----

planned----

planning

pat

----

patted

----

patting

rid

----

ridded

----

ridding

rob

----

robbed

----

robbing

rebet

----

rebetted

----

rebetting

regret

----

regretted

----

regretting

stop

----

stopped

----

stopping

stir

----

stirred

----

stirring

rub

----

rubbed

----

rubbing

travel----

travel(l)ed

----

travel(l)ing

whip

----

whipped

----

whipping現(xiàn)在進(jìn)行時(shí)1．現(xiàn)在進(jìn)行時(shí)表示現(xiàn)在正在進(jìn)行或發(fā)生的動(dòng)作，也可表示當(dāng)前一段時(shí)間內(nèi)的活動(dòng)或現(xiàn)階段正在進(jìn)行的動(dòng)作。2．現(xiàn)在進(jìn)行時(shí)的肯定句基本結(jié)構(gòu)為be+動(dòng)詞ing.3．現(xiàn)在進(jìn)行時(shí)的否定句在be后加not。4．現(xiàn)在進(jìn)行時(shí)的一般疑問(wèn)句把be動(dòng)詞調(diào)到句首。5．現(xiàn)在進(jìn)行時(shí)的特殊疑問(wèn)的基本結(jié)構(gòu)為：疑問(wèn)詞不達(dá)意+be+主語(yǔ)+動(dòng)詞ing?但疑問(wèn)詞當(dāng)主語(yǔ)時(shí)其結(jié)構(gòu)為：疑問(wèn)詞不達(dá)意+be+動(dòng)詞ing?動(dòng)詞加ing的變化規(guī)則1．一般情況下，直接加ing，如：cook-cooking2．以不發(fā)音的e結(jié)尾，去e加ing，如：make-making,taste-tasting3．如果末尾是一個(gè)元音字