Ⅳ．Define the following terms.（10%）

51．morpheme

52．homonym

53．connotation

54．elevation

55．idiom

Ⅴ．Answer the following questions. Your answers should be clear and short. Write your answers in the space given below.（20%）

56．As far as growth of present-day English vocabulary is concerned, what are the three main sources of new words?

57．What are the semantic features of compounds? Give an example to illustrate your point.

58．Decide whether the following statement is true or false, based on your understanding of the characteristics of antonyms. State your reason with one example.

Contrary terms are non-gradable and allow intermediate members in between.

59．How do you account for the context function as indication of referents?

Ⅵ．Analyze and comment on the following. Write your answers in the space given below.（20%）

60．Analyze the following dialogue and comment on the rhetoric use of homonym in italicized font.

—“You’re not eating your fish,” a waitress said to a customer. “Anything wrong with it?”

—“Long time no sea.” the customer replied.

61．Analyze the three causes of meaning change within the scope of the linguistic factors, based on the given words below.

（1）gold, bulb;

（2）deer, beast, animals;

（3）fortuitous, fruition.