题目内容
14．The astronaut is so tired that he ____ for eleven hours．（ ）| A． | has been asleep | B． | has fallen asleep | ||
| C． | has gone to bed | D． | has gone to sleep |
分析 这个宇航员是如此的累以至于他睡了11个小时了．
解答 答案：A．根据for eleven hours．可知这里的意思是11个小时，for后面跟的是一段时间通常用于现在完成时态，而且动词要用延续性动词，在这四个选项中只有be asleep表示状态，故选A．
点评 本题考查了现在完成时的用法．解答时注意在for引导的时间短语中所使用的动词应该用延续性动词．
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