Wu Tingting is forty-two years old. She is China’s first woman doctor in polar expedition teams (极地探险队).

In 2010, Wu worked as a doctor in a big hospital in Shanghai. She was lucky to join China’s Arctic and Antarctic expeditions then. Before that, most doctors in polar teams were men. But Wu has her own advantages (优势). She is more careful. She can find small changes in team members.

Polar trips had challenges. Besides bad weather, team members felt lonely. They had little entertainment (娱乐) back then. Wu tried to keep everyone in good health.

1.1.How old is Wu Tingting?

A 22.

B 32.

C 42.

D 52.

解析：选C。C 细节理解题。文章第一句明确提到“Wu Tingting is forty-two years old”，因此她的年龄是42岁。故选C。

2.2.What was Wu’s job in Shanghai?

A A teacher.

B A nurse.

C A driver.

D A doctor.

解析：选D。D 细节理解题。文章第二段第一句指出“Wu worked as a doctor in a big hospital in Shanghai”，因此她在上海的工作是医生。故选D。

3.3.What’s Wu like?

A She is careful.

B She is beautiful.

C She is clever.

D She is lazy.

解析：选A。A 细节理解题。文章第二段提到“But Wu has her own advantages. She is more careful”，说明她的特点是细心。其他选项如美丽、聪明、懒惰均未在文中提及。故选A。

4.4.The underlined word “challenges” means “________”.

A 机会

B 挑战

C 爱好

D 变化

解析：选B。B词义猜测题。根据上下文，“Polar trips had challenges. Besides bad weather, team members felt lonely.” 可知，极地考察除了恶劣天气，队员还会感到孤独，这些都是困难或挑战，因此“challenges”意为“挑战”。故选B。