What should we do to keep healthy? One important rule is to exercise _41__.  My parents try to exercise every day. My father _42_ exercise in the morning because he must get to work at exactly  seven o’clock. But he runs every morning. He walks a lot, _43__. He walks to school every day, and after school he _44__ different sports with his friends. My father goes to a yoga (瑜伽功) class_45__.

    But it wasn’t_46__ this  way. Last year my parents used to __47__ everywhere in their car ,even to shop two blocks away. They thought they had to use the car all the time. They wouldn’t walk.

     My parents _48__ better now. They believe they shouldn’t be lazy. We __49__ exercise every day, but we should try our __50___ to exercise as often as possible.

41A. often                       B. sometimes                     C. late

42A. may not                     B. can not                        C. would not

43A. either                       B. also                           C. too

44A. Watches             B. plays                          C. loves

45A. in two weeks               B. for two weeks          C. twice a week

46A. always                      B. even                          C. sometimes

47A. riding                B. drive                          C. walk

48A. had                 B. make                         C. feel

49A. needn’t              B. don’t                         C. won’t

50A. best                B. good                          C. well

One afternoon, I went to pick up my mother from work.I got there a little early, so I _______ (41) my car by a small park, and _______ (42) for her.
As I looked outside the car window, I saw a little boy, around two years old, running _______ (43) on the grass as his mother _______ (44) from a short distance. The boy had a big smile on his face as if he had just been ______ (45) free from some sort of prison .The boy would then fall to the grass , (46) up , without looking back at his mother , run as_______ (47) as he could ,again , still with a smile on his face ,as if nothing had happened.
At that moment, I thought to myself , “why aren’t most adults this way ?” Most adults, when they fall down, make a big deal out of it and don’t even _______ (48) a second attempt. They would be so _______ (49) that they would not try again if someone saw them fall .Or , because they fall , they would find a good _______ (50) for themselves that they’re not fit for it . They would end up too afraid to attempt again for fear of failure.
However, with kids, when they fall down, they don’t consider their falling down as a failure, instead, they treat it as a _______ (51) experience. They try again and again until they _______ (52) .The answer must be that they have not connected“falling down” with the word “failure”. As a _______ (53), they are not discouraged in any way .Besides, they _______ (54) think to themselves that it’s quite okay to fall down and that it’s not wrong to do so. In other words ,they allow themselves to make _______ (55), so they remain energetic.
I was deeply impressed by the boy’s persistence (坚持不懈) and the manner in which he did.