One day，a few years ago，I was rushing from the pool when a man stopped me and said， "You must come to swim with the team." I was in my early 50s--- too old for a swim team，I thought.But the coach--- Igor was his name---insisted： "I can see you are a good swimmer."
   Encouraged，I joined his group of swimmers.Workouts started at 5：30 in the morning when most people were still in bed.Although we were all at different swimming levels，we had one thing in common：We wanted to get better.
   After a few days，a bunch of us were complaining about how little progress we were making，how slow we were.Igor smiled and said， "You are all confused!Speed is not the goal；it is the result of perfectly beautiful technique." What really mattered to Igor was the technique.Once you mastered that，he argued，speed would follow naturally.Speed was simply the welcome side effect of swimming well.
   I've been thinking lately that there's a lesson here that goes beyond the pool.We all wanted to swim faster and the more hysterically（歇斯底里般地）we tried，the more speed escaped us.The same goes for happiness.Everyone wants to be happy，yet the more directly we go after happiness，the more elusive （難以捕捉的）it becomes.
   Research shows that thinking too much about how to be happy actually weakens well-being.This is in part because all that thinking consumes a fair amount of time，and is not itself enjoyable.Study after study shows that good social relationships are the strongest，most consistent predictor of a happy life.
   Our technique has improved，thanks to Igor.Some days，I swim only a little faster than I did before.But even if I don't，I feel great.
   In the end，happiness is a side effect of living well - just like speed can be the result of excellent swimming technique.Now，if you'll excuse me，I'm off to the pool.

（1）How did the author react when Igor invited him to join the team？

A

A

A．He hesitated at first.
B．He refused firmly.
C．He accepted it at once.
D．He consulted his coach.
（2）Why did some teammates feel unhappy after a few days？

B

B

A．They learned nothing new.
B．They were unable to swim faster.
C．They got up too early in the morning.
D．They were at different swimming levels.
（3）What happens when the author focuses on swimming？

C

C

A．He becomes the best on the team.
B．His social relationships have improved.
C．He makes progress and enjoys himself.
D．His swimming speed has increased greatly.
（4）What can we know about happiness？

C

C

A．Happiness comes to those trying hard to achieve it.
B．Happiness is a side effect of a personal hobby.
C．Happiness is a natural result of living well.
D．Happiness arises from a healthy body.