分词做状语需要注意的一个问题
分词与句子主语的逻辑关系
Seeing from the hill , the city looks beautiful. （错误）
Seen from the hill , the city looks beautiful . （正确）
Seeing 与the city 不是主谓关系；seen 与city 是动宾关系
悬垂分词： considering speaking supposing judging providing
Judging from his accent, he is from Shanghai.
