1．“ a”在词尾不发音：
cocoa—coco
2． b” 在以“—mb” 结尾的词中不发音
climb—clime, lamb—lam, plumb—plum, jamb—jam,coomb—coom,subtle--suttle
3．“ c” 不发音：
schort—short, schorl--shawl
4． “ d” 不发音：
handsome--hansom
5．“e” “ a”在词尾不发音：
ore—or—oar—awe, grate—great, brake—break,parol—parole,griff—griffe, prose—pro, dyeing—dying, sale—sail,pale—pail,male—mail, lute—loot, pane—pain, base—bass
6． “n” 前的“g”常常为无声字母：
reign—rein, gnaw—nor, sign—sine, feign—fain—fane, gneiss—nice
7． 不发音的“h” 常常在 “w”, “ t”, “c”, “a”, “g”之后
while—wile, when—wen, whack—wack, whale—wale—wail,whit—wit,whet—wet, whiz—wiz, wheal—weal--wheel, thyme—time,chord—cord,choral—coral, minah—miner—minor, donah—dona,ghyll—gill
8． “k”在“ n”前常常不发音：
knot—not, know—no, knit—nit, knight—night—nite,knap—nap,knob--nob, knock—nock, knobble—nobble, knay—nay,knave—nave
9． 无声字母 “l” 多在 “n”, “m”前：
halm—harm, holm—home, balm—barm,yolk—yoke
10．以字母组合mn结尾的单词“n” 不发音时造成的同音词：
damn—dam, hymn—him, limn—limb
11． 声字母“p”
corps—core—cow, psych—sike
12． 无声字母 “r”
iron—ion
13． 无声字母 “s”
islet—eyelet, hors—hoar
14． “t” 在“ch” 前或在词尾不发音时造成的同音词：
retch—reach, letch—lech, witch—which, batch—bach,tchick—chick,trait—tray, mot—mo—mow
15． “w”在 “r” , “h”前不发音：
write—wcenter—rite—center, wring—ring, wrick—rick,wrest—rest,wrap—rap, wrack—rack, wreck—reck—rec, wretch—retch,whole—hole,whoop—hoop, wholly—holy
16． “u” 在“ b”, “g”后不发音
buy—by—bye, buoy—boy, buyer—byre, guilt—gilt,guild—gild,guerilla—gorilla, guelder—gelder
17． “q” 后面的 “ue’ 不发音
clique—cleek, casque—cask, masque –mask,coque—cock,pique—peak—peek—peke
18． 字母组合“gh”不发音
eight—ate, might—mite, sight—site—cite,sought—sort,straight—strait,bought—bort, slight—sleight,through—threw,bough—bow, sleigh—slay, weigh—way—whey, aweigh—away,high—hi—hie,weight—wait
