A.three fourth; is B.three fourths; is
C.three fourth; are D.three fourths; are
51.【答案】B.
【解析】考查分数表达。句意:几乎地球表面的四分之三被海洋覆盖。分数的表达方式:分子用基数词,分母用序数词,当分子超过一了,分母变复数,本题中把地球看做整体,所以谓语动词用单数,故选B。
52. ______ of the land in that district ______ covered with trees and grass.
A.Two fifths; is B.Two fifth; are
C.Two fifth; is D.Two fifths; are
52.【答案】A.
【解析】考查分数的表达法,分子基数词,分母序数词,分子超过一,分母加s。分数做主语,此处代表不可数名词land ,故用单数。故选A。
53. It took us quite a long time to get here. It was ______ journey.
A.three-hour B.a three hour
C.a three-hour D.three hours
53.【答案】C.
【解析】考查数词加名词构成的合成词的用法。three-hour中间需加连字符左前置定语,journey可数需加不定冠词a。题意:用了很长时间才到那里。那是三个小时的旅程。故选C。
54. Two ______ died of cold last winter
A.hundreds old people B.hundred old people
C.hundreds old peoples D.hundred old peoples
54.【答案】B.
【解析】考查数词的用法。hundreds和具体数连用不用复数;people当作人们皆不加复数。句意:200老人去年冬天死于寒冷。故选B。
55. After the new technique was introduced, the factory produced tractors in1988 ______ as the year before.
A.as twice many B.as many twice
C.twice as many D.twice many as
55.【答案】C.
【解析】考查倍数表达法。倍数+as…as…句意:引进新技术后,这家工厂1988年生产的拖拉机是前一年的两倍。故选C。
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