shr --shrink,shred, shrill, shrimp, shrub

spl --splash,split, splice, splint, splurge

spr --spread,spring, spree, sprain, spray

squ --square,squad, squirrel, squat, squeak

str --string,strip, straw, stream, street

thr --throw,three, throne, thrift, thrill

在结尾的字母组合

ck(只发一个/k/音) --duck, pack, quick, luck, rock

ld --cold,gold, held, mild, bald

lk --milk,silk, elk, sulk, skulk

mp --lamp,damp, champ, hump, dump

   nch --inch,ranch, lunch, bench, crunch