18．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．
51．The writer bought the car in order toB． A．serve the public B．travel more easily C．take the trip alone D．save more money 52．Why did the writer camp in his car？A A．He was short of money． B．It was his habit． C．He could have a better rest． D．It would be warmer． 53．The writer asked the woman forC． A．a map B．a thermos C．some hot water D．a light breakfast 54．How did the young man feel at last？D A．Funny． B．Upset． C．Disappointed． D．Thankful 55．What's the main idea of the text？C A．Traveling alone is interesting． B．Sharing food is a pleasure． C．Kindness is the sunshine in life． D．Smile is important to everybody．
