a e i o u y-主发音
oo-ee-ea-ae-oi-eao-io-ai-ia
1.begin-began-begun
2.top-tip-tap
3.sing-song
4.gold-gild
5.enemy-inimical
full-fill=fulfill
注意英语单词过去式,总是元音字母改变
1.b-p-ph-f-v-w
wine-vine-vinegar
bother-frater
2.c-k-ck-que-ch-tch
bench-bank
candle-kindle
check-cheque
blank-blanch
peak-pitch
3.h,e不发音字母可脱落
mother-maternal-maternity
father-paternal-paternity
brother-fraternal-fraternity
4.v-w/g/ct
5.w-g
ward-guard
wane-gaunt