[简答题]What are the differences between inflectional morphemes and derivational morphemes

参考答案: The distinction between inflectional morphemes and derivational morphemes is also known as the distinction between inflectional affix and derivational affix. The two types of affix have the following differences:
First, inflectional affixes are generally less productive than derivational affixes: they very often only add a minute or delicate grammatical function to the stem. They serve to produce different forms of a single lexeme. However, derivational affixes are very productive in making new words.
Second, inflectional affixes do not change the word class of the word they attach to, whereas derivational affixes might or might not. Derivational affixes often change the lexical meaning.
Third, whether one should add inflectional affixes or not depends very often on the other factors within the phrase or sentence. However, derivational affixes are more often based on simple meaning distinctions.
In English, inflectional affixes are mostly suffixes, which are always word final. But derivational affixes can both be prefixes and suffixes.
答案解析: [解析] 本题主要考查屈折形素(inflectional morphemes)和派生形素(derivational morphemes)之间的区别。只要知道这两者之间的区别实际上就是屈折词缀(i