During the Jin Dynasty（265-420），there was a child named Che Yin.He was smart and loved to read.He grew up in a poor family and couldn't afford lamp（燈） oil（1）

to study

to study

（study） at night.
   One night he saw fireflies（螢火蟲(chóng)） outside his house and came up with（2）

an

an

idea，He caught some fireflies in a cloth bag and hung it up as a lamp.It was said that he spent all of his summer nights reading like this.
   （3）

Another

Another

child named Sun Kang who lived during same period also loved reading.One night during winter，Sun used up all of his lamp oil and couldn't study at night.When he（4）

woke

woke

（ wake） up at midnight，he saw the snow reflecting（反射） the moonlight outside his house.Suddenly，he thought that he could use the reflected light to read!He was freezing cold，（5）

but

but

he still took out his books and read.
   In the past，people had a much（6）

harder

harder

（ hard） time studying than we do now.Paper and writing brushes were so expensive（7）

that

that

many families couldn't afford them.Students even had to travel over（8）

mountains

mountains

（ mountain） and rivers in order to find a good teacher.However，these conditions did not stop young minds（9）

from

from

learning knowledge.
   This is an old Chinese story — nangyingyingxue（囊螢映雪）.People（10）

are encouraged

are encouraged

（ encourage） by the two boys' hard-working spirit.Today，we have better chances.We students should cherish it and learn from them.