题目内容
20.They must be very tired now,for they ______ in the field the whole morning.( )| A. | worked | B. | are working | ||
| C. | had worked | D. | have been working |
分析 他们现在肯定很累了,因为他们整个早晨都在田里工作.
解答 答案是D.本题考查现在完成进行时.题干中"now"判断"the whole morning"是与现在相联系的段时间,是现在完成时的标志,故排除A、B和C;现在完成进行时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;根据语境判断,他们整个早晨都在田里工作中,故选D.
点评 对时态的选择,要在把握时态的基本用法的基础上,根据具体语境和题干中的时间推断时态,同时关注特殊的结构.
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Inside,with his parents,and Army personnel (31)C,the ceremony began.(32)Bthe commander announced that Tom was an honorary soldier,the gathering crowd (33)Dinto applause and Tom's mother felt excited.She wanted (34)Ato serve the country and the people.With a tear on his cheek,Tom (35)Din agreement.Harris walked over and shook the boy's hand.
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