It is said that the gravity on Mars is only about of the gravity on ear
题型：不详难度：来源：
It is said that the gravity on Mars is only about of the gravity on earth.| A．three-eighths | B．third-eighth | C．third-eighths | D．third-eight |
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答案
| A |
解析
试题分析：英语中一般用基数词表示分数的分子，用序数词表示分数的分母。当分子是一时，分数的分母用单数形式，在表示分数时，当分数的分子大于一时，分数的分母要用复数形式。由分数修饰的主语后面谓语动词的数，和被修饰主语的单复数保持一致。根据分析可知选项BCD结构有误，故选A。
点评：英语分数的表达规则比较固定，学习中应牢记这些基本规则。需注意的是，由分数修饰的主语后面谓语动词的数，和被修饰主语的单复数保持一致。 |
举一反三
______ people were found ______ after that earthquake.| A．A number of; died | B．The number of; died | | C．A number of; dead | D．The number of; dead |
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—Mother’s Day is celebrated across the world on the Sunday in May.
—That’s right. People show their love for their mothers by giving some presents.| A．first | B．second | C．third | D．last |
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--- Do you mind telling us something about this area?
--- Not at all. ________ of the land in this area _________ covered with trees and grass.| A．Two fifth, is | B．Two fifth, are | C．Two fifths, is | D．Two fifths, are |
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_____of the warm water _____already been used up.| A．Two-third;has | B．Two-third;have | | C．Two-thirds;has | D．Two-thirds;have |
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