C.Hard work.

　　D.Self­confidence.

　　解析：通读全文可知，这三个人有一个共同的特点，即自信。如Sir Steven Redgrave说的“I could still be a winner if I believed in myself.”；Karen Pickering说的“Trust yourself，write down your goals for the day...”；及Kirsten Best 所说的“...increases my confidence.”

　　答案：D

　　C

　　I suddenly heard an elephant crying as though frightened.Looking down，I immediately recognized that something was wrong，and ran down to the edge of the near bank.There I saw Ma Shwe with her three­month­old calf struggling in the fast­rising water，and it was a life­and­death struggle.Her calf was floating and screaming with fear.Ma Shwe was as near to the far bank as she could get，holding her whole body against the rushing water，and keeping the calf pressed against her huge body.Every now and then the rushing water would sweep the calf away.

　　There was a sudden rise in the water and the calf was washed clean over the mother's body and was gone.Ma Shwe turned quickly to reach it and pressed the calf with her head and trunk (象鼻) against the rocky bank.Then with a huge effort，she picked it up in her trunk and tried until she was able to place it on a narrow shelf of rock.

　　Just at this moment，she fell back into the river.If she were carried down，it would be certain death.I knew，as well as she did，that there was one spot (地点) where she could get up the bank，but it was on the other side from where she had put her calf.

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