分词作状语1)beingexicted,icouldn'tgotosleep2)beingastudent,hewasinterestedinsports3）inspiredbyDr.Yang'sspeech.LiHuaandhisclassmatesdecidedtostudyphysicsharder.为什么1,2句子前面有BEING,而第三个句子前没BEI

Question

分词作状语
1)being exicted,i couldn't go to sleep
2)being a student,he was interested in sports
3）inspired by Dr.Yang's speech.Li Hua and his classmates decided to study physics harder.
为什么1,2句子前面有BEING,而第三个句子前没BEING?
第一个句子exicted,i couldn't go to sleep be exicted.

Answer 1

动词ING形式表示主动,第一句being exicted的动作执行者是后面的主语I,第二句也一样,是he is(being) a student.
动词过去分词表示被动,第三句,by表示被、由,是被动语态的标志.(Li Hua and his classmates was) inspired by Dr.Yang's speech.
第一句是I was excited,so I couldn't sleep.excited是形容词,意为感到兴奋的,感到激动的意思,这里不是被动语态,明白了吗?