1. What is the passage mainly about?
A. The general details of Xu Xiake's life story.
B. The difficulties Xu Xiake faced in his travels.
C. The important discoveries made by Xu Xiake.
D. The influence of Xu's book The Travel Notes of Xu Xiake.

2. Which of the following best describes Xu's mother?
A. Strict but interesting.
B. Kind but uneducated.
C. Helpful and hard - working.
D. Supportive and open - minded.

3. Why did Xu prefer walking during his travels?
A. It gave him the chance to meet different kinds of people.
B. It helped him to save money and travel for a longer time.
C. It allowed him to see and study the environment in detail.
D. It was the only way to reach the places he was interested in.

4. What is true about Xu's book The Travel Notes of Xu Xiake?
A. It was only made public after Xu died.
B. It made Xu very famous during his lifetime.
C. It was the first travel book ever written in China.
D. It was mainly about the different people of China.

5. What is the correct order for the following events from Xu's life?
a. He went on his first journey.
b. His book was finally printed.
c. He returned to his hometown for the last time.
d. He developed an interest in books about other places.
e. He started managing the family farm after his father died.
A. a - e - d - c - b
B. d - e - a - c - b
C. d - e - a - b - c
D. e - d - a - b - c