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---The number of the students in our school is about nine _____.   ---I see. ______of them are boys.
A.hundred; Two thirdsB.hundred ; Two third
C.hundreds; Two thirdsD.hundreds; Two third

答案
A
解析

试题分析:英语中数词表示概数时,后面加s,和介词of搭配使用。用原形时表示具体数字和数词搭配使用。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。句意:我们学校学生的三分之一大约是九百人。——我知道了,他们中三分之二是男生。结合语境可是上文表示具体数字,故用原形。下文分子大于一,故序数词用复数形式。选A。
点评:英语中关于hundred、thousand和million三个数词的用法只需要记住一个原则就行。即;前有数词则不加s,加s必加of。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。
核心考点
试题【 ---The number of the students in our school is about nine _____.   ---I see. __】;主要考察你对钟点等知识点的理解。[详细]
举一反三
    the students in this school is about four thousand,      of them are boys.
A.A number of, three fifthB.The number of, three fifths
C.A number of, three fifthsD.The number of, three fifth

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Our teacher said there would be ______ books in the new library.
A.thousandB.thousandsC.thousands ofD.thousand of

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—How many birds can you see in the trees?
—I can see        birds in them.
A.hundreds ofB.five hundredsC.hundred ofD.five hundreds of

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Tom lives on the ________ floor.
A. twoB. twice    C. second
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______ of the floor _______ wet.
A.Three quarter;isB.Three fourths; is
C.Three fourth;areD.Three quarters; are

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