题目内容
5.Two fifths of the area _____ covered with trees,most of which ______ been planted recently.( )A. | is; has | B. | are; have | C. | is; have | D. | are; has |
分析 五分之二的区域被树覆盖,大部分的树是最近才种植的.
解答 答案为C
分数所修饰的area表示"区域,地区"是可数名词,做主语时谓语动词用第三人称单数形式.most of which引导定语从句修饰先行词trees,因which指代trees,并且 been 和recently提示 故谓语动词用 have,构成了现在完成时被动语态.故答案为C.
点评 当分数修饰名词做主语时,名词决定谓语动词形式.在定语从句中,先行词决定从句谓语动词形式.
练习册系列答案
相关题目
18.The routes turned out to be marked in red in the brochure.I _______ learning the places by heart.( )
A. | should have bothered | B. | couldn't have bothered | ||
C. | needn't have bothered | D. | must have bothered |
14.Before she______thethe door,she____what had happened to her computer.( )
A. | walked;noticed | B. | walked; had noticed | ||
C. | walks; has noticed | D. | had walked; noticed |
8.---Can you finish the difficult task in such a short time?
---No,it is beyond my __________.( )
---No,it is beyond my __________.( )
A. | complex | B. | competence | C. | comprehension | D. | competition |