为什么th发的音和thank中的th发音不同？

th有两种发音。
(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θ。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, therefore, they。只有介词through是个例外。 (2) th位于词尾（或音节之尾）时，其读音多数是清辅音θ，如：bath, breath, tooth, 等。只有在少数单词中，如：with, smooth 中读浊音ð。 (3) th在词中并且后面接er时，或者最后一个字母是不发音的e时，通常也发浊辅音ð。例如：feather, weather, whether, leather, further, father, bathe, breathe, southern, northern, either等。在其他情况下发清辅音θ。例如：author, faithful, method, nothing, anything, healthy, wealthy。 试读下列单词: mother, father, another, brother, health, wealth

匿名回答于2024-06-07 02:59:20