Drinking
Refrigerated soft drinks are widely available, but beware ice cubes made from tap water, as most tap water in China is unpotable and should be at least boiled before drinking.
Beer (pijiu, pronounced pee-jyoh) is very popular in China, but it is all very similar (about 3–5% alcohol), with none of the stronger or darker varieties brewed in the West. The other popular alcoholic drink is rice wine (baijiu, pronounced bye-jyoh). Beware, this can be very strong (40%+ alcohol).
In China, drinking alcohol is still mainly a male custom. Male guests are routinely offered alcohol and cigarettes at meal times (usually not breakfast). Just politely refuse if you don't want them. An empty glass is always refilled, no matter about protests that the guest has had enough, as a mark of politeness or good will. Often a refusal has to be given three times. See Chinese Guest and Host Customs. Maybe if you've had enough a good thing would be to leave your glass full. Getting drunk is generally not seen as a problem in China and is often encouraged.