求一道高中英语非谓语动词题________and short of breath.Andy and Ruby were the first to reach the top of Mount Tai.A.Tired B.Being tired为什么选A不选B?这里的过去分词相当于形容词,为什么就不能用现在分词呢?还有下面这道________to sunlight for too much time will do harm to one's skin.A.Exposed B.Being exposed 为什么又选B不选A呢?是不是第一个tired是形容词,第二个exposed是动词被动式的原因啊?
问题描述：
求一道高中英语非谓语动词题
________and short of breath.Andy and Ruby were the first to reach the top of Mount Tai.
A.Tired B.Being tired
为什么选A不选B?
这里的过去分词相当于形容词,为什么就不能用现在分词呢?还有下面这道
________to sunlight for too much time will do harm to one's skin.
A.Exposed B.Being exposed
为什么又选B不选A呢?
是不是第一个tired是形容词,第二个exposed是动词被动式的原因啊?
答
being tired强调进行
tired and short of breath做伴随状语
后一个是动名词作主语 必须加being
答
being tired强调进行
tired and short of breath表示状态
（________to sunlight for too much time） will do harm to one's skin.
A.Exposed B.Being exposed
括号里的作主语,动名词作主语,又表示被动所以用动名词的被动being done ,
过去分词done不能作主语.