对我国地理位置说法正确的是   （       ）

①美国是联邦国家                    ②实行总统制

③规定华盛顿为美国第一任总统        ④确定华盛顿为首都

阅读理解

    I was traveling alone through the UK. To reach places that were off the public transportation map，I bought an old car, which cost most of my money. I couldn't afford to stay in the hotel, so I had to camp in my car for the rest of the trip.

    One morning I awoke in my old car on a country road in Ireland and saw a single house. The water in my thermos (保温瓶）had gone cold, so I knocked on the door of the house. A woman opened it. I asked her for some hot water. But she wouldn't let me get away with just that! I was invited indoors. She asked me to sit at the table and have breakfast with her family. They filled my thermos before I left.

I was greatly moved. And I decided to pass the kindness on. The other day I met a young man who had been driving around to look for a parking lot. He looked increasingly upset. I was glad that I was able to point one out to him. His thankful smile was the hugest reward (奖赏）for me.