字母组合th和wh的发音规律

字母组合wh在大多数情况下发/w/音，字母h不发音。只有后接o时，字母w不发音，字母h发/h/音。例如：who whom whose whole
试读下列单词：why, which, while, wholly
11.从A、B、C、D四个选项中，找出其划线部分与所给单词的划线部分读音相同的选项。
(1) weather A. wealth B. health C. smooth D. tooth
(2) faithful A. southern B. breathe C. author D.with
th---有清与浊 两种读音：
(1) th位于词首时，可以从词性上判别其应有的读音。在名词、动词、形容词和数词中th发清辅音。如：thing, theatre, thunder, thermos, Thursday, theory, theme, throat, thread, think, thank, thrive, thicken, thirteen, thirty, third, thousand, thick, thirsty, thoughtful, thorough 在代词和一些功能词中th发浊辅音.如： them, their, theirs, there, the, than, then, though, thus,