1. (2022九上·长春月考) 根据短文内容，回答下列问题。

Dragon Head Raising Day: time for a haircut

China is a country with many colorful days and festivals. The Dragon Head Raising Day（Longtaitou） is one of them.

This special day is on the second day of the second month in the Chinese lunar calendar（阴历）.It stands for（代表） the start of spring and farming. This year, the day fell on March 4.

The dragon is important in Chinese culture. We Chinese people call ourselves the "descendants（ 传人 ） of the dragon". Therefore, people celebrate the Dragon Head Raising Day with many customs about dragons.

On the day in ancient times, people put ashes（ 灰 ） in the kitchen. This was to "lead the dragon into the house". People believed that with the help of the dragon, they could have a good harvest in autumn.

Also, people eat special foods on that day. The foods are usually named after dragons. For example, people eat "dragon whisker（细须）" noodles and dumplings called "dragon teeth".

Today many customs have faded away（消退）.But one that has remained is the cutting of hair. It was said that a haircut during the first lunar month may bring bad luck to the mother's brothers. So many people have their hair cut on the Dragon Head Raising Day.

1. （1） Which country does the Dragon Head Raising Day belong to?
3. （2） When was the Dragon Head Raising Day this year?
5. （3） On the day in ancient times, why did people put ashes in the kitchen?
7. （4） Besides food, what is the custom that has remained according to the passage?
9. （5） How did people believe the dragon could help them?