How can foreign tourists pay for bus fares to Harbin Attractions?

I am planning to travel to Harbin, China to visit Harbin' tourists attractions like the sun island, polarland museum, zhaolin park & etc.. but how can foreign tourists pay for bus fares?
Please advise & any suggestions are welcome.

1) Should tourists bring chinese yens in the form paper dollar bills & coins for bus fares?
2) Should tourists pay by fare cards?
3) Does these buses have announcements of bus stops upon arrival ?
4) Are their billingual signs of Harbin's tourists attractions?
5) How would foreign tourists find out the bus schedules & know where to get off from the bus upon arrival?