题目内容
9.The number of chairs in the room __ ten.I'm afraid a number of chairs in the room ___ lost.( )| A. | is; is | B. | is; are | C. | are; is | D. | are; are |
分析 房间内椅子的数目是十.恐怕房间里许多椅子丢失了.
解答 答案:B 此题重点考查the number of/a number of 的区别.它们修饰名词作主语时,谓语的数是不一样的.(1)a number of为量词短语,表示"许多…",中心词是这个短语所修饰的复数名词,所以作主语时,谓语动词用复数形式.(2)the number of表示"…的数量",中心词为number,指的是of后边名词的数量,数量是个抽象概念,因此谓语动词用单数.结合语境可知前文主语表达抽象含义,表椅子的数量,不可数,故谓语动词用单数,下文,a number of 为许多,大量的,主语为复数形式,故谓语动词用复数形式.
点评 由number构成的这两个短语是经常考查的对象,其一般解题原则是先区分这两个短语的含义,然后结合语境选择正确答案.其结构,含义比较固定,熟记即可.
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