题目内容
15.Ihave been writing(write) a book on great people since last year.I should finish it next year.分析 自从去年起我就在写一本关于杰出人物的书.我今年应该完成这本书.
解答 答案是have been writing.本题考查语境中选用恰当的动词时态.本题需要关注现在完成时和现在完成进行时的区别:现在完成时常常表明动作已经结束;现在完成进行时是现在完成时的一种特殊形式,常常表示动作未完成;由题干中的since判断句中需要现在完成时,根据第二句可知"写书的动作还在进行中",故判断句中需要现在完成进行时,故答案是have been writing.
点评 本题是要求用所给动词的适当形式填空,解题时首先考虑句中需要的是谓语动词还是非谓语动词;其次,如果是谓语动词关注时态、语态和数的变化;如果是非谓语动词要联系非谓语的基本用法判断非谓语的形式.
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