How much is the taxi fee from Tianjin airport to Tianjin railway station and from Beijing South Railway Station to Beijing Days Inn Forbidden city?

i will arrive in tianjin airport,would like to take a bullet train,what is the best procedure??and how much is the taxi to tianjin railway staion,
and from south railway station to days inn forbidden city,how much is the taxi,
and i print out the hotel name in english,will the taxi driver know english??thanks