题目内容
9.The number of private cars in China __________ since 2005,but only 15percent of them __________ made in China.( )A. | has been increasing; are | B. | have increased; is | ||
C. | has been increased; is | D. | had increased; are |
分析 中国私家车的数量自从2005年以来一直在增长,但是只有15%的是中国制造.
解答 答案是A.本题考查现在完成进行时.题干中"since 2005"是与现在相联系的段时间,是现在完成时的标志,故排除D;现在完成进行时表示表示从过去某时开始到现在这一段时间里一直延续着的动作还在继续进行;根据语境和常识判断,中国私家车数量的增长还在进行中,故选A.此外关注第一空的主语是"the number of+复数名词",表示"…的数量",谓语动词用单数;第二空句的主语是15%of them,是复数概念,谓语动词用复数.
点评 完成进行时的解题首先要理解其时态的基本用法--表示从过去某时开始到现在这一段时间里一直延续着的动作,特别关注其"在进行中"的特征;然后在语境中寻找动作的时间依据进行判断.

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