you want to pronounce the /j/ in Beijing like a hard g - so, more like "giraffe" than the g in "massage"
The Chinese language has over 400 dialects in continental China alone. The people of each province have a special dialect, and then the people of each city, town, and village have their own special dialect as well. However, unlike many languages many of the Chinese dialects are vastly different from some of the other Chinese dialects. In many countries, a person with a southern vernacular can understand a person with a northern dialect. With Chinese dialects, some seem like an entirely different language
As a standard language, Mandarin is widely used as the communication medium during public activities while people use the dialect native to their area or province when communicating within their family or with other native speakers.
Only 18 per cent of those surveyed speak Mandarin while talking to the family members, while 42 per cent speak at school, work or play.
Sixty-six per cent of the urban residents speak Mandarin, a 21 per cent higher rate than rural residents.
The survey also showed that the young have better Mandarin fluency, with just 31 per cent of those aged 60 to 69 able to speak the language,while the figure has more than doubled among those younger than 29.