Ⅶ. 阅读与回答问题
根据短文内容，回答下列问题(每题答案不超过 8 个词)。
(2025·淮安二模) In Chinese dishes, good vinegar (醋) is like magic. It makes noodles, dumplings, and even vegetables taste amazing—so amazing that it's part of China's cultural treasure! One of the best kinds of vinegar comes from Qingxu County in Shanxi. The red sorghum (高粱) grows tall under the sun there.
Qingxu County in Taiyuan, Shanxi Province, is famous for growing high - quality sorghum. Sorghum is used to make vinegar, and there are many workshops that produce it. The aged vinegar from this place has been famous for hundreds of years. In 2006, the county's vinegar - making skills were considered as a national cultural treasure.
At Shanxi Shuitai Vinegar Company, where buildings were built in an ancient style, workers wear the Ming Dynasty clothes while making vinegar in the traditional way. “They are not actors, but real workers,” said Zhang Ce, the general manager. “As our company grows, customers want to know how we make our aged vinegar and learn about its history.”
In recent years, the vinegar industry has been changing with the times. While keeping old traditions, it has also added exciting new flavours (风味). For example, some companies are trying to make apple vinegar for kids and honey vinegar for salads.
Qingxu County has 81 vinegar businesses. They produce about 800,000 tons of vinegar each year. This industry offers jobs to almost 100,000 people. The county is working hard to grow its vinegar industry. A vinegar industry development fund (基金) has been set up.
The aged vinegar produced in Shanxi so far has been exported (出口) to 36 countries and areas, including the United States, Canada, Australia and Japan.
1. What is vinegar made of in Qingxu County?

2. How long has Qingxu County been famous for the aged vinegar?

3. Are the people in the Ming Dynasty clothes at Shanxi Shuitai Vinegar Company workers or actors?

4. Why are the companies trying to make apple vinegar for kids and honey vinegar for salads?

5. What can we know from the last paragraph?