12．One afternoon，I went to pick up my mother from work．I got there a little early，so IB （41）my car by a small park，and waited for her．
As I looked outside the car window，I saw a little boy，around two years old，running freely on the grass as his motherA （42）from a short distance．The boy had a big smile on his face as if he had just beenD （43）free from some sort of prison．The boy would then fall to the grass，B（44）up，without looking back at his mother，run asC （45）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（小题大做） out of it and don't evenA （46）a second try．They would be so embarrassed（尴尬） that they would not try again if someone saw them fall．Or，because they fall，they would find a goodD （47）for themselves that they're not fit for it．They would end up too afraid to try 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 learning experience．They try again and again until theyD （48）．The answer must be that they have not connected"falling down"with the word"failure"．As a result，they are not discouraged in any way．Besides，theyC （49）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 makeA （50），so they are energetic．（有活力的）
I was deeply impressed by the boy's persistence （坚持不懈） and the manner in which he did．
| 41．A．left | B．stopped | C．repaired | D．drove |
| 42．A．watched | B．noticed | C．surveyed | D．supported |
| 43．A．cut | B．kept | C．found | D．set |
| 44．A．hold | B．get | C．end | D．pick |
| 45．A．well | B．long | C．fast | D．soon |
| 46．A．make | B．provide | C．practice | D．discover |
| 47．A．cause | B．sign | C．chance | D．excuse |
| 48．A．progress | B．improve | C．achieve | D．succeed |
| 49．A．hardly | B．perfectly | C．probably | D．nearly |
| 50．A．mistakes | B．choices | C．plans | D．wishes． |
