题目内容：

Look to many of history’s cultural symbols, and there you’ll find an ancestor of Frosty, the snowman in the movie Frozen. It appeared on some of the first postcards, starred in some of the earliest silent movies, and was the subject of a couple of the earliest photos, dating all the way back to the 1800s. I discovered even more about one of humanity’s earliest forms of life art during several years of research around the world.

For example, snowmen were a phenomenon in the Middle Ages, built with great skill and thought. At a time of limited means of expression, snow was like free art supplies dropped from the sky. It was a popular activity for couples to leisurely walk through town to view the temporary works of chilly art. Some were created by famous artists, including a 19-year-old Michelangelo, who in 1494 was appointed by the ruler of Florence, Italy, to build a snowman in his mansion’s courtyard.

The Miracle of 1511 took place during six freezing works called the Winter of Death. The city of Brussels was covered in snowmen—an impressive scene that told stories on every street corner. Some were political in nature, criticizing the church and government. Some were a reflection of people’s imagination. For the people of Brussels, this was a defining moment of defining freedom. At least until spring arrived, by which time they were dealing with damaging floods.

If you fear the heyday of the snowman has passed, don’t worry: I’ve learned that some explosive snowman history is still being made today. Every year since 1818, the people of Zurich, Switzerland, celebrate the beginning of spring by blowing up a snowman. On the third Monday of April, the holiday Sechselauten is kicked off when a cotton snowman called the Boogg is stuffed with explosive and paraded through town by bakers and other tradesmen who throw bread to the crowds. The parade ends with the Boogg being placed on a 40-foot pile of firewood. After the bells of the Church of St. Peter have rung six times, representing the passing of winter, the pile is lit. When the snowman explodes, winter is considered officially over—the quicker it is burnt down, the longer summer is said to be.

1.According to the passage, why did snowmen become a phenomenon in the Middle Ages?

A. People thought of snow as holy art supplies.

B. People longed to see masterpieces of snow.

C. Building snowmen was a way for people to express themselves.

D. Building snowmen helped people develop their skill and thought.

2.“The heyday of the snowman” （paragraph 4） means the time when___________.

A. snowmen were made mainly by artists

B. snowmen enjoyed great popularity

C. snowmen were politically criticized

D. snowmen caused damaging floods

3.In Zurich, the blowing up of the Boogg symbolizes__________________.

A. the start of the parade

B. the coming of a longer summer

C. the passing of the winter

D. the success of tradesmen

4.What can be concluded about snowmen from the passage?

A. They were appreciated in history

B. They have lost their value

C. They were related to movies

D. They vary in shape and size