4．
Think back to a time in your life when you tried something new．
When I was a teenager I volunteered to pass out water at a local race．I was so excited to see all the different runners who passed by and quickly took a cup of water．Some ran past，some walked past and a few wheeled past．
I saw so many types of people doing it．I thought maybe I could do it too!The next year I decided to run for the race，but I had little running practice．I just wanted to finish．
On the day of the race，it was terribly hot．After running for about 5miles，I was thinking，"I must be crazy．Why did I do this？What was I thinking？"And at one moment，I said to myself，"I am never doing this again！"
That first 10km race was quite an experience．I jogged （慢跑），I walked，I jogged and walked．At times，I didn't know if I could finish．
Near the end，a 70yearold man ran past me，very fast，and I felt a little embarrassed （尴尬的） that I was more than 50years younger than he and I couldn't even keep up with him．But then I realized something．He was running his race and I was running mine．How often in life do we compare（比较） ourselves to others when we really shouldn't？I decided that I would not give up on running races，and that one day I would be one of those 70yearolds who were still running．
As I crossed the finishing line，I was proud of myself．I didn't regret （后悔） having such an experience．
52．What did the writer do at a local race as a volunteer？C
A．He helped old runners．
B．He cheered up the runners．
C．He passed out water to the runners．
D．He took back the cups from the runners．
53．Why did the writer join the race？A
A．He just wanted to experience．B．He was crazy about running．
C．He had practiced running very hard．D．He wanted very much to win a prize．
54．How did the writer's feeling change after running about 5miles？C
①He regretted．
②He encouraged himself．
③He felt a little embarrassed．
A．①-②-③B．②-①-③C．①-③-②D．②-③-①
55．What is the best title （标题） of the passage？D
A．To be No.1． B．Let's compare．
C．A volunteering job． D．Running your own race．
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