A short dialogue is presented in Chinese, then (non-accentuated) Pinyin. You can try to participate with this video by speaking along. From the lesson:
Woman: "Ni hao." Man: "Ni hao." Woman: "Ni hui shuo pu tong hua ma?" Man: "Wo hui shuo yi dian er. Wo shuo de bu hao." Woman: "Ni shi mei guo ren ma?" Man: "Shi." Woman: "Ke shi ni pu tong hua shuo de hen hao."
"Putonghua" means "mandarin." "Ni hui shuo pu tong hua?" means "Do you speak Mandarin?"