John was a very strong man． Once he got a job cutting wood in the forest（森林）． His boss gave him an axe（斧子）and showed him the area where he should work．
    The first day，John cut down 18 trees． "Good" the boss said，"Keep that up!"
    Happily，John tried harder the next day， but could only cut down 15 trees． The third day he tried even harder， but could only cut down 10 trees． Day after day he was cutting down fewer and fewer trees．
" I must be losing my strength（力氣）" John thought． He said sorry to his boss and he said that he could not understand what was going on"
    "When was the last time you sharpened（磨快） your axe？the boss asked．
    "Sharpened？I have no time to sharpen my axe． I have been very busy trying to cut down trees!" said John．
    Although John was working hard， he didn't work "smart"． He didn't think about the best way to do his job． Many of us never learn new skills， and we think that what we have learned is enough． Sharpening our skills from time to time is the key to success．

（1）What job did John get once？

Cutting wood（ in the forest ）/ Once he got a job cutting wood （in the forest）．

Cutting wood（ in the forest ）/ Once he got a job cutting wood （in the forest）．

（2）How many trees did John cut down the first day？

18/ 18 trees /He cut down 18 trees the first day．

18/ 18 trees /He cut down 18 trees the first day．

（3）Did John cut down fewer and fewer trees day after day？

Yes/ Yes，he did/ Yes，John cut down fewer and fewer trees day after day．

Yes/ Yes，he did/ Yes，John cut down fewer and fewer trees day after day．

（4）Why didn't John sharpen his axe？

Because he had no time to sharpen his axe．

Because he had no time to sharpen his axe．

（5）What do you learn from the story？

Sharpening our skills from time to time is the key to success．/ We should improve our skills from time to time．

Sharpening our skills from time to time is the key to success．/ We should improve our skills from time to time．