oo的长音短音区分

这个问题已经困扰国人儿童学习几十年了.我从78年开始学英语,偶有晓得,总结如下：首先,将其分为以tdk结尾和非tdk结尾.所有非tdk结尾都读长音/u:/以tdk结尾的又分为k和td结尾.所有k结尾都是短音/u/而td结尾基本上都是短音/u/,但是有两种情况要注意：food,mood,boot,root,shoot这5个单词读长音/u:/,而blood,flood这两个词读短元音/ /,就是倒过来写的v.

k /u/ book,look,brook,cook,took,hook

t/d /u/ foot,stood,wood,good

t/d /u:/food,mood,boot,root,shoot

t/d / /flood,blood读音同but,bus

非t/d/k /u:/ moon,noon,tool,school,spoon,too,loo,fool,pool,room

有这么一首顺口溜,希望对您有所帮助：oo发/u:/最常见,t,d 前面短音现（发短音/ u/),food foot记心间.注还有一个blood发//

oo读长还是短,记住口诀就简单。

d, k之前读短[u],food一词是特例;

t前读长[u:],foot需要特殊记;

复合词中要读短,其余多数读长[u:];

l, s, d间读作[Λ],例外还要特殊记。

oo在单词中的发音主要有长音[u:]和短音[u]两种:

(1) 重读音节词尾发[u:] too zoo bamboo cuckoo kangaroo shampoo

(2) 在辅音字母f,l,m,n,s,t,p,z前的重读音节发[u:]

roof proof

school fool cool pool tool stool (wool [wul]例外)

room broom groom bloom gloom

Soon moon noon spoon

goose loose choose

boot root tooth shoot smooth soothe (foot football [u]例外)

troop loop oozy

(3) 在字母d和k前发[u]

good goods wood stood goodness (food[fu:d] mood [mu:d]特例)

book look cook hook took shook brook outlook cookie

(4)在复合词(双音节或多音节词)的非重读音节中发[u]

bedroom bathroom classroom workroom childhood boyhood

neigbourhood readingroom mushroom understood

(5) 在复合词(双音节或多音节词)的重读音节中发[u:]

afternoon cartoon balloon cocoon moonlight noodle

typhoon saloon schoolboy

注意1：在字母l和d之间发[Λ] : blood flood

注意2：oor字母组合发[ ?:] : door floor (poor [ ??] 例外

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