根据短文内容，选择正确答案。

    Do you know how to play a game called “Musical Chairs”? It is easy to play and most people enjoy it. All you need are some chairs, some people and some ways of making music. You may use a piano or any other musical instrument, if someone can play it. You may use a tape recorder. You can even use a radio.

Put the chaffs in a row. The chairs may be put in twos, back to back. A better way is to have the chairs in one row with each chaff facing in the opposite direction to the chair next to it.

    The game is easy. When the music starts, the players walk round the chairs. Everyone goes in the same direction, of course, they should walk in time to the music. If the music is fast they should walk quickly. If the music is slow, they should walk slowly.  

    The person playing music cannot see the people in the game. When the music stops, the players try to sit on the chairs. If a person cannot find a chair to sit on, he drops out: Then, before the music starts again, one chair must be taken away. When the music stops again, one more player will be out.

    At last, there will be two players and one chaff. The one who sits on the chair when the music stops is the winner.

一个不会游泳的人失足掉进路边一个水塘里。他害怕极了！天哪，我没救了，我必死无疑了！他挣扎一阵后就不动了。后来人们发现：他站起来，那水才淹没到他的腰部。这个故事告诉我们（  ）
①不自信的人，总是对自己抱着怀疑的态度，会在犹犹豫豫中失去机会，留下的便是遗憾
②自信的人在困难、挫折面前，能冷静、沉着应对，从而转危为安
③只有相信自己“能行”的时候，才真正“能行”
④总认为自己“不行”的人，即使具备了足以成功的能力，也会因缺乏自信而导致失败