清清浊浊元后浊

清清浊浊元后浊简述 1.-s/-es(名词复数及动词第三人称单数的变化形式) (1)清辅音后读/s/ 如: maps books likes (2)浊辅音后读/z/ 如: bags leaves (3)元音后读/z/ 如: plays teachers (4)如名词/动词的原形本身是以/s/、/z/读音结尾的,后加的-s/-es读/iz/ 如:buses boxes oranges watches washes (5)特殊的,以/?/、/t?/、/d?/结尾的,后加的-s/-es读/s/ 2.-ed发音规律(动词过去式/过去分词的变化形式) (1)清辅音后读/t/ 如: watched stopped (2)浊辅音后读/d/ 如: saved recognized (3)元音后读/d/ 如: played referred (4)如动词的原形本身是以/t/、/d/读音结尾的,后加的-d/-ed读/id/ 如: wanted surrounded