1 According to some observers, television has acquired a disquieting monopoly over people s leisure time. A recent B business C noisy D troubling 2 Professor Smith continued his research work and disregarded his colleague’s advice. A ignored B deplored C explored D implored 3 Before the development of movable metal type in the mid-fifteenth century, news was disseminated by word of mouth, by letter, or by public notice. A organized B requested C distributed D limited 4 Corn, domesticated by the American Indians, was brought to Europe by Columbus. A trained B cultivated C implanted D reared 5 Of all the wild dogs, none is more closely related to the domesticated dog than the wolf. A ordinary B tame C faithful D hunting 参考答案：1. D2. A3. C4. B5. B