be good at、be famous for是形容词的固定搭配，he is good at speaking English.是主系表句型 speaking english介词短语看做状语
求救!be good at、be famous for…等这样的短语是动词短语还是介词短语?he is good at
be good at、be famous for是形容词的固定搭配，he is good at speaking English.是主系表句型 speaking english介词短语看做状语