Cui Chenxi is a middle school student from Shenyang，Liaoning Province.（1）

When

When

he is only 13，he knows more about biology than you may think.
    One day last term，when Cui was reading his English book，he found a mistake in one of its pictures.It was a picture（2）

of

of

an insect （昆虫）.Below it was the word "bee".Cui found that the insect was not a bee，but a hoverfly.So he made the（3）

decision

decision

（decide） to call the publisher.After（4）

checking

checking

（check） the picture they said he was right，they would change the picture soon.
    It was not difficult for Cui to find the mistake.He often（5）

lies

lies

（lie） on the（6）

icy

icy

（ice） ground to observe（观察）the animals.Because of this，he could tell different kinds of insects.He said，"Bees have two pairs of wings，but hoverflies only have one.Bees are fat，but hoverflies are thin."
    Cui is good at biology because he's（7）

interested

interested

（interest） in it.When he was in primary school，he（8）

kept

kept

（keep）over 10 kinds of ants.He could even tell what they like to do（9）

and

and

what they can do.In his home，there are many books and more than 300 of（10）

them

them

（they） are about biology.
    Well done，Cui Chenxi!