题目内容
20.-He is _______ in class and has _________ for two hours.-He is so tired these days preparing for the mid-term exam.( )
| A. | alseep; sleeping | B. | sleep; sleeping | ||
| C. | slept; asleep | D. | sleeping; been asleep |
分析 --他正在课堂上睡觉,并且已经睡了两个小时了.--他这些天为了准备期中考试很累.
解答 答案:D.考查动词时态.句意"--他正在课堂上睡觉,并且已经睡了两个小时了.--他这些天为了准备期中考试很累."根据回答他这些天为了准备期中考试很累.可知他正在课堂上睡觉,并且已经睡了两个小时了.句子前半句为现在进行时,构成:be+现在分词.所以第一个空填sleeping.后半句有时间段结合has,可知句子为现在完成时,构成:have/has+动词的过去分词.强调睡的状态,应用be asleep,所以第二个空应填been asleep.故选D.
点评 根据句子结构确定句子时态,再结合具体语境进行作答.
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