I recently passed through Shanghai on my way to the nearby city of Ningbo. I landed at Shaghai Pudong and had to switch to Shanghai Hongqiao airports. At both the airports all the key signs were bilingual between Mandarin and English, whilst many of the staff spoke passable English. Furthermore there is a reasonable bus service linking the two airports, it costs about 30 RMB (at time of typing £1 = 13.25 RMB) and the journey lasted about an hour. From Pudong airport there are many other bus services which are also sign posted bilingually, such as to the central train station and to certain hotels and key areas around Shanghai.