There was a famous scientist who made several important discoveries.Once he was asked how he was able to be so creative（有创造性的）.He r（1）

eplied

eplied

to them that it all came from an experience he had with his mother when he was 2 years old.He was trying to take a bottle of milk （2）o

ut

ut

of the refrigerator.But the bottle was too slippery（滑的） and he dropped it.The kitchen floor was covered in milk.
   When his mother came into the kitchen，（3）i

nstead

nstead

of shouting at him or punishing him，she said，" Robert，what a great and （4）w

onderful

onderful

mess you have made!I have never seen such a huge puddle（水坑） of milk.Would you like to play in the milk for a few minutes （5）b

efore

efore

we clean it up？"
   So he did.After a few minutes，they cleaned it up （6）t

ogether

ogether

.Then his mother said，"This was a failed experiment（实验） in how to carry a big bottle of milk with two tiny hands.Let's go out in the backyard and （7）f

ill

ill

the bottle with water and see if you can find a way to carry it without dropping it."
   The little boy learned that if he held the bottle at the top near the lip（瓶口） with both hands，he could carry it without dropping it.（8）W

hat

hat

a wonderful lesson!
   The scientist then added that it was at that moment that he knew he didn't need to be （9）a

fraid

fraid

to make mistakes.He learned that mistakes are just opportunities（机会） to learn something new---which is，after all，what scientific（科学的） experiments are all about.Even （10）t

hough

hough

the experiment doesn't" work "，we can still learn something valuable from it.