Mike is an English boy. Now he studies (学习) in Beijing. He has a good friend, Li Gang. They often play together. Today they want to climb (爬) the Xiangshan Mountain. They buy some snacks in the shop. And then they go to the mountain by car. Mike climbs quickly (快地). Li Gang climbs slowly. Mike is so happy. But he falls (摔倒) and hurts his knee. Luckily (幸运地), Li Gang has some plasters (创可贴) in his bag. He puts one on Mike's knee. Mike is okay now.