四、阅读理解。
On a summer day, I visited Khiva in Uzbekistan. It is a beautiful city. The city is famous for its history. It was one of the top three Silk Road stops in Uzbekistan.
The most famous place of Khiva is the Itchan Kala, an old town. It has a history of about 2,500 years. Many people describe it as a living museum. There are lots of historical sites. They help visitors learn about the history and culture of Khiva.
I arrived in Khiva in the morning and visited the Itchan Kala first. Visiting it made me feel like a small child. The old town was like a labyrinth (迷宫). It was fun to walk around along the streets. And each time I thought I was on the same road as before, I found myself turning a different corner. Then I saw a different building. My favourite building was the Tash Hauli Palace. It had very beautiful rooms. I stopped again and again to see them.
People in Khiva are proud of their history and culture. They do a lot to protect (保护) them. For example, many people move out of the Itchan Kala and live in other places to protect the old town.
()21. What do we know about Khiva?
A. It was a museum.
B. It looks like a labyrinth.
C. It has a history of about 5,000 years.
D. It was a famous stop on the Silk Road.
()22. How did the writer feel when he was in the Itchan Kala?
A. Warm.
B. Proud.
C. Interested.
D. Tired.
()23. What is the last paragraph mainly about?
A. New rules in Khiva.
B. People's lives in Khiva.
C. The most famous place of Khiva.
D. People's efforts (努力) to protect Khiva's history and culture.
()24. Why did the writer write the passage?
A. To talk about his trip.
B. To show his love for history.
C. To remember his old days.
D. To let more people know his town.

21—24.DCDA