A) follow a direct line of ascent

　　B) also appeal greatly to adults

　　C) are not characterized by technological progress

　　D) reflect the pace of social progress

　　40. The author uses the example of a rattle to show that ________.

　　A) in toy-making there is a continuity in the use of materials

　　B) even the simplest toys can reflect the progress of technology

　　C) it often takes a long time to introduce new technology into toy-making

　　D) even a simple toy can mirror the artistic tastes of the time

　　Part Ⅲ Vocabulary and Structure

　　Directions: There are 30 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE answer that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the centre.

　　41. He came back late, _______ which time all the guests had already left.

　　A) after

　　B) by

　　C) at

　　D) during

　　42. I m very sorry to have _______ you with so many questions on such an occasion.

　　A) interfered

　　B) offended

　　C) impressed

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