The first few years in the 21st century ______ the rapid rise of China as a worl

The first few years in the 21st century ______ the rapid rise of China as a worl

题型:不详难度:来源:
The first few years in the 21st century ______ the rapid rise of China as a world economic power.
A.witnessB.has witnessedC.will witnessD.have witnessed

答案
B
解析

试题分析:考查时态题。根据The first few years in the 21st century可知应该用现在完成时。本句是无生命的东西作主语,此处的the past two years作主语。witness 解释为:见证了。句意:21世纪的前几年见证了中国做为经济大国的快速成长。选B。
点评:时态的考查主要看动词发生的时间,如果没有时间就看上下文,这题的解题关键是The first few years in the 21st century,说明是过去到现在一直做的事情。
举一反三
With more forests being destroyed in that area, huge quantities of land _______ deserts each year.
A.has been turned into B.had been turned into
C.is being turned into D.are being turned into

题型:不详难度:| 查看答案
The new dictionaries are very useful. They _______ well and _______ already.
A.sell; have been sold out
B.sold; had sold out
C.sell; sell out
D.are sold; have been sold out

题型:不详难度:| 查看答案
The new generation of computers, with artificial intelligence, _______and perfected now.
A.are being developedB.have developed
C.developedD.will develop

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---John, why are you so upset?
---I­­­      my cell phone all morning but it is nowhere to be found.
A.am looking forB.have looked for
C.have been looking forD.had looked for

题型:不详难度:| 查看答案
Sun Yang, a young Chinese swimming talent,       several gold medals before the 2012 London Olympics.
A.wonB.has wonC.had wonD.were to win

题型:不详难度:| 查看答案
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