题目内容
18.In our school library there a number of books on science,and in these years the number of them growing larger and larger.( )| A. | are; is | B. | is; are | C. | have; are | D. | has; is |
分析 在我们学校图书馆有许多关于科学的书,这些年它们的数量变得越来越大.
解答 答案A.
本题考查there be句型.首先,此句型中be动词的单复数由离它最近的名词来确定,其次a number of表示"若干的;许多的,后接复数可数名词作主语时,其谓语动词用复数形式;而the number of…表示"…的数量".作主语的中心词时,谓语动词用单数形式.在本题中,第一个横线根据a number of books on science,用复数 are,第二个横线根据the number of them用单数 is,故本题选A.
点评 本题考查两个知识点,首先是there be句型,其次是a number of和the number of 的意思的用法,要熟练掌握它们.
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