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basic word stock and stand at the core of the English language. ? Loan words: Words borrowed from other languages. Borrowings constitue about 80% of the modern vocabulary. By origin 10 March 2020 By level of usage ? mon (常用語 ) ? literary (文學(xué)用語 ) ? colloquial (口語 ) ? slang (俚語 ) ? technical terms (terminology) (科技術(shù)語 ) 10 March 2020 ? Common words are connected with the ordinary things or activities necessary to everyday life. They are stylistically neutral, hence they are appropriate in both formal and informal writing and speech. By level of usage 10 March 2020 ? Literary words are chiefly used in writing, especially in books written in a more elevated style, in official documents, or in formal speeches. By level of usage 10 March 2020 ? In contrast with literary words, colloquial words or expressions are used mainly in spoken English, as in conversation among friends and colleagues. Such as: kid, guy, fellow, By level of usage 10 March 2020 ? Penalties for overdue books will be strictly enforced. ? You have got to pay fines for overdue books. ? They approved of the plan. ? They agreed to the plan. Compare: 10 March 2020 Page. 6 ? Active vocabulary ? Speaking vocabulary ? Writing vocabulary ? Passive vocabulary ? Reading vocabulary ? Guess vocabulary 10 March 2020 ★ The structure of words ? The ponent parts of a word ? Classification of morphemes ? Relationship between the two classifications of morphemes 10 March 2020 ★ The ponent parts of a word Words are formed by morphemes. ? Morpheme: the smallest meaningful linguistic unit of language. ? The term morpheme is derived from Greek morph and French eme, the former means form, while the latter the smallest unit. ? Chinese equivalents of morpheme : 語素; 詞素; 形位 10 March 2020 ? Analyze the position of the following words: house guns gun, s tolerate toler, ate unfaithful un, faith, ful lighthouse light, house 10 March 2020 Classification of morphemes I ? Morphemes may be classified into free and bound. Free morphemes may constitute words by themselves. These morphemes have plete meanings in themselves and can be used as free grammatical units in sentences. That is to say, a free morpheme can stand alone as a word. . b