As Lia Bentley walked home from school on a cold October afternoon, she saw symmetry (对称) all around her: in the faces of people and the clothes they wore, in the buildings she passed and in the cars that went by. the birds in the sky were symmetrical, even the autumn leaves that covered the sidewalk.
All the month, Lia's class had been studying different forms of symmetry, and Lia was very interested. Mr. Ferris, their science teacher, had given them their final task: to find the most beautiful example of symmetry and give a report to the class on it.
Lia looked at the task in her notebook. The most beautiful example of symmetry, she thought. What on earth could that be? Halfway through the school year, she'd been given a microscope (显微镜) for her birthday. Now she realized that she could use it to study symmetry. She set up what she called “laboratory” in the small wooden house. The microscope stood on a table. She hoped to find an example of symmetry that would stand out from all the others. Lia spent hours on the examination of cells and drops of pond water full of strange symmetrical life. Although she was surprised by what she saw, it troubled her that none of it was truly beautiful. Lia stayed in the wooden house until her father called her inside. “Come on, Lia. It's getting cold out. The weather forecast says it's going to snow.”
Lia suddenly felt sad. Snow meant winter was on its way. The cold weather would mean fewer things to look at under the microscope. Snow would often cover the area like a blanket, hiding everything from sight.
“Come inside!” her father called again.
“Be there in a minute, Dad!” Lia called back.
Just then, the door of the wooden house was blown open by s short strong wind. As she turned her head against the wind, she caught sight of a single snowflake (雪花) that had blown into the wooden house and onto the stage (载物台) of her microscope.
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Lia looked through the microscope, and to her surprise, she saw the most beautiful example of symmetry she could ever have imagined.
Suddenly, Lia had an idea –– she ran to her house and picked up her camera.
