You could use this useful chart just for reference but also as a mapping exercise. How far is it from each of these host cities to your own country? We have a similar worksheet here.
Winter Olympics Host Cities Past Present and Future
Choose from three versions of this Winter Olympics sports frame, which captures all the excitement of the event. Can the kids spot their favourite winter sports in the pictures?
This PyeongChang Winter Olympics frame can be used in lots of ways. How about writing a report on one of the many events, or list the Olympic medal winners? It's available in colour, with lines or without, and also in black and white (with lines or without).