字母th发音 规则 谢谢各位老师。答:第一类:四种词类 th 读清音,即国际音标的/θ/:1、名词:thing, theatre, thumb, thunder, thermos, Thursday 2、动词:think, thank, throw, thrive, thicken,3、数词:three, thirteen, thirty, third, thousand 4、形容词:thin, thick, thirsty, thoughtful, thorough 第二类:在以下两种词类 ...