9．She _____ concerts every day since last week．（　�。�
A．was performingB．has performed
C．has been performingD．had performed

分析 從上周末她每天都在進(jìn)行音樂會(huì)的演出．

解答 答案：C．根據(jù)時(shí)間狀語every day since last week可知音樂會(huì)的演出從過去開始一直持續(xù)到現(xiàn)在，而且現(xiàn)在每天都在進(jìn)行，所以用現(xiàn)在完成進(jìn)行時(shí)，因此答案是C．D項(xiàng)是現(xiàn)在完成時(shí)，不強(qiáng)調(diào)現(xiàn)在正在進(jìn)行．

點(diǎn)評(píng) 考查現(xiàn)在完成進(jìn)行時(shí)．perform作為動(dòng)詞，主要分三層：

1．vt．&vi．上演（戲）；扮演（角色）；演奏（樂器）
如：When will the play be performed？那出戲什么時(shí)候上演？
2．vt．做/進(jìn)行；完成/履行
perform one's promise 履行承諾
3．vi．運(yùn)轉(zhuǎn)；行動(dòng)
如：The machine performs/works well．機(jī)器運(yùn)轉(zhuǎn)良好．

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