题目内容
7.Over the past 16years,the population of the Amish people to 230,000,with roughly 5children per family.( )A. | had nearly doubled | B. | has nearly doubled | ||
C. | nearly doubled | D. | has nearly been doubling |
分析 在过去的16年里,亚米希人的人口数将近增加了一倍达到了23万,每个家庭大约有5个孩子.
解答 答案:B
根据句中的时间状语"Over the past 16years"可知,此处表示在过去的16年里发生的事情,即人口数将近增加了一倍;故应使用现在完成时;A.过去完成时表示发生在过去某时间之前的动作;C.一般过去时,表示过去发生并且现在已经结束的动作,此处指的是人口数的增长情况,因此应表示现在没有结束的动作;D.现在完成时态的被动语态;此处的主语the population 与谓语double构成主谓关系,不能使用被动语态;因此A.C.D都不合句意;故选B
点评 本题考查了现在完成时的用法.做本题时,首先可以根据句中的时间状语,判断出本句应使用的时态;其次应熟练掌握各时态所表示的意义以及它们之间的用法区别.
练习册系列答案
相关题目
8.The reading material might be easier for me to understand if you get this sentence
into Chinese.( )
into Chinese.( )
A. | translating | B. | to translate | C. | translated | D. | translate |
12.-Have you got any particular plans for the coming holiday?
-Yes, ,I'm going to visit some homes for the old in the city.( )
-Yes, ,I'm going to visit some homes for the old in the city.( )
A. | if possible | B. | if anything | C. | if ever | D. | if busy |
19. news that the Chinese Men's National Football Team was disqualified for the next World Cup finals came as no surprise at all.( )
A. | \;a | B. | The;\ | C. | A;a | D. | The;a |
16.Chinese senior leaders,________ lawmakers in panel discussions of the government work report ________ by Premier Wen Jiabao.( )
A. | joined; delivered | B. | had joined; delivering | ||
C. | would join; to deliver | D. | have joined; being delivered |