2 words The word is composed of one or more than one morpheme. Words can be classified In two ways 1)Classified in terms of word-formation In terms of word-formation, words can be divided into simple words(na #f in) derivatives派生词) and compounds(复合词).[ see examples on Pages3-6] 2)Classified in terms of grammatical function In terms of grammatical function, words can be divided into two main groups closed words((封闭词类) and open- class words(开放词类) Closed-class words refer to those sets of words whose items areclosed" or limited in number and are only exceptionally extended by the creation of additional members, such as prepositions, pronouns, determiners, conjunctions, auxiliaries, etc Open-class words refer to those sets of words whose items are indefinitely extendable. New items are constantly being created and old items are giving place to new ones, such as nouns, adjectives, adverbs, main verbs(主动词) There is another class existing between the two, which includes cardinal numeral ordinal numeral, interjection, etc2. words • The word is composed of one or more than one morpheme. Words can be classified in two ways: • 1) Classified in terms of word-formation • In terms of word-formation, words can be divided into simple words(简单词), derivatives(派生词) and compounds(复合词). [see examples on Pages 3-6] • 2) Classified in terms of grammatical function • In terms of grammatical function, words can be divided into two main groups: closed words(封闭词类)and open-class words(开放词类). • Closed-class words refer to those sets of words whose items are “closed” or limited in number and are only exceptionally extended by the creation of additional members, such as prepositions, pronouns, determiners, conjunctions, auxiliaries, etc. • Open-class words refer to those sets of words whose items are indefinitely extendable. New items are constantly being created and old items are giving place to new ones, such as nouns, adjectives, adverbs, main verbs(主动词). • There is another class existing between the two, which includes cardinal numeral, ordinal numeral, interjection, etc