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帮忙看一句英语句子.Hisbodytemperaturehasbeenabnormalfor3days,thehighestpointreaching40.5degreecentigrade.问,这里的hasbeenabnormal是什么成分,hasbeen不是加动词吗?而abnormal却是个形容词,这种结构我没

题目详情
帮忙看一句英语句子.
His body temperature has been abnormal for 3 days,the highest point reaching 40.5 degree centigrade.
问,这里的has been abnormal是什么成分,has been 不是加动词吗?而abnormal却是个形容词,这种结构我没见过.
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答案和解析
has been abnormal是系动词+表语的结构.has been 是系动词be的完成形式,后面加形容词作表语.比如我们可以说I am happy today.I have been unhappy for three days.这里一句是一般现在时,一句是现在完成时.