TOKYO/SINGAPORE (Reuters) – Asian shares extended a global rally on Wednesday, with markets in China stabilizing and Japanese stocks posting their biggest one-day gain since the height of the global financial crisis in 2008. The upbeat mood was set to lift Europe, with financial spreadbetters expecting Britain’s FTSE 100 (.FTSE) to open up as much as 2.2 percent, Germany’s DAX (.GDAXI) 3.6 percent higher, and France’s CAC 40 (.FCHI) 2.2 percent higher. Japan’s Nikkei soared 7.7 percent, its biggest single-day gain since October 2008, apparently galvanized by hopes of corporate tax cuts.