Ⅲ. 回答问题
阅读下面短文，并用英语回答问题(请注意每小题的词数要求)。
The 24 Solar Terms are China's traditional culture and they are also the national intangible cultural heritage (非物质文化遗产). Start of Spring, the first solar term of the year, begins this year on February 4th and ends on February 17th. Here are some things you should know about Start of Spring.
As a solar term, Start of Spring had already entered people's lives during the Spring and Autumn Period. At that time, there were eight solar terms. According to some experts, the 24 Solar Terms were used for the first time in books during the Western Han Dynasty, when Start of Spring was set as the Spring Festival (the beginning of the year).
Spring is the best season for kite-flying. This traditional folk activity has a history of more than 2,000 years. It can help build one's health and prevent diseases. It also has the effect of promoting blood circulation and speeding up metabolism (新陈代谢).
In many parts of China, people observe the custom of "biting the spring" on the first day of Start of Spring. They eat spring pancakes, spring rolls, or carrots.
The custom of posting calligraphy and paintings on doors in spring first appeared during the Tang Dynasty. People would do so to welcome spring and wish for good luck on the first day of Start of Spring.
16. When did Start of Spring begin this year?(不超过 10 个词)

17. How many solar terms were there in the Spring and Autumn Period?(不超过 10 个词)

18. How long is the history of kite-flying?(不超过 10 个词)

Ⅲ.回答问题
16. On February 4th(this year). / It begins on February 4th this year.
17. Eight. / There were eight solar terms at that time.
18. More than 2,000 years. / It has a history of more than 2,000 years.