第8题:[不定项选择题]Which of the following is closest in meaning to the underlined word “plummeted” in Paragraph 3? A.Punished timely. B.Spread widely. C.Continued gradually. D.Dropped sharply. 参考答案:D 词义题。根据画线词定位到第三段。前面说学生考试分数不高,就会在情感上对其造成消极的影响,导致他们质疑自己的学习能力,失去信心,不想继续尝试。随着这样的想法不断加深,他们的表现也不可逆转地急剧下降。由此可以推断出plummeted与Dropped sharply“急剧下降”意思相近。故本题选D。