题目内容：

Sichuan has long been known as the "Province of Abundance". 1.(history) speaking, Sichuan was the home of the ancient 2.(state) of Ba and Shu. Their conquest by Qin 3.(strength) it and paved the way for the First Emperor's unification(统一) of China under the Qin Dynasty. During the Three Kingdoms era, Liu Bei's Shu 4.(base) in Sichuan. The area became one of China's 5.(productive) areas by the 19th century. The people of Sichuan speak6. unique form of Mandarin, which took shape during the area's repopulation 7. the rule of the Ming Dynasty. The family of dialects is now spoken by about 120 million people, which would make 8. the 10th most spoken language in the world if counted separately. The area's warm damp climate long caused local people 9. (advocate) spicy dishes. The native Sichuan pepper was supplemented by Mexican chilis during the Columbian Exchange to form modern Sichuan cuisine, 10.dishes—including Kung Pao Chicken and Mapo Tofu—have become famous around the world.