I was always tired when I was in school because I had a lot of pressure.（1）

Making

Making

（make）progress was difficult for me.After I heard a（2）

meaningful

meaningful

（meaning）story，I made up my mind to change myself.One day，a teacher was giving a talk to his students.He put a glass of water on a desk and（3）

asked

asked

（ask）them，"How heavy do you think this glass of water is ？"
   The students began to think and guess.Their answers were（4）

different

different

（difference），from 20 g to 500 g."It doesn't matter how heavy this glass of water is.It depends on how long we hold it.If I hold it（5）

for

for

a minute，it is OK.If I hold it for an hour，I will have a pain in my right arm.If I hold it for a day，in（6）

my

my

（I）opinion，you will have to call 120 at once：Do you want to know why？Let me tell you the（7）

reason

reason

（reason）.As a matter of（8）

fact

fact

，the weight of the glass of water doesn't change，but the longer you hold it，the（9）

heavier

heavier

（heavy） it becomes.
   "If we carry our burdens（負擔）all the time，we will become crazy sooner or later.（10）

So

So

we must learn to relax such as having our own daily outdoor activities."the teacher said to them at last.