One day an American called Simon went to London to visit his friend, Rick. Rick told him that his flat was on the first floor. When he arrived, Simon went straight to the first floor of the building. But he was told that there was no Rick on that floor. Do you know why?

    In fact, the British call the first floor of a building the ground floor. The floor above the ground floor is the first floor, while Americans would call it the second floor.

    The story shows that there are a few culture differences between Britain and America, though the British and Americans both speak English.

    The British usually hide their feelings. They seldom start a conversation with strangers. For example, on the train the British often spend their time reading newspapers or books. But Americans are quite different. They're more active and easier to talk with.

    The British and Americans may use different terms for many things. The British usually use “football”, “eraser” and “mail” while Americans prefer to use “soccer”, “rubber” and “post”.

“她挑着孩子沉甸甸的梦想，她在春天播下希望的种子。”——“2009感动中国年度人物”李灵，在家乡创办希望学校。为给留守儿童撑起梦想的天空，她负债累累。在烈日下她骑着破三轮车穿街过巷，一斤斤地回收旧书本，满头大汗地载回“精神粮食”。对此认识正确的是    （   ）
①她克服困难、勇担重任，获得了社会的承认和赞誉
②她积极承担责任，为此付出了一定的代价
③她具有强烈的社会责任感，热心公益，服务社会
④她不珍惜自己的健康，完全放弃了个人利益