阅读理解。 Usually, Chinese baby gets a surname (姓) from his or her parents' family name, most often the father's. Then the family chooses a given name for the newborn. The given name will have one or two Chinese characters, though recently, people have begun to choose some three-character given names. Chinese given names are meant to have special meanings and often express the parents' wishes for the child, for example, Jiankang (health) and Xingfu (happiness). Some refer to birthplace, birth time or a natural phenomenon (现象), such as Jing (Beijing), Chen (morning), Dong (winter) and Xue (snow). Meanings in given names also show the culture of an era (时代). In the old days, given names such as Wangcai ( the family prosperous and rich) were popular. During the 1950s and 1960s, many boys had given names such as 'building the country' (Jianguo) and 'celebrating National Day' (Guoqing). A study showed that there were 290,000 Jianguos in the late 1960s. At that time, girls were often named for flowers like Guihua and Hehua. The reform and opening policies (改革开放政策) in the late 1970s gave more choices for given names, such as Bo (搏), and Yuhang (宇航). Parents wanted their children to learn more and have big dreams. In 2008, thousands of newborn babies were named Aoyun (Olympics) because of the Beijing Olympic s. The 2010 Shanghai World Expo made Shibo (世博) a popular given name. Over 6,200 newborn babies were named Shibo in the first nine months of 2010, according to Xinhua News Agency. 1. The given names in China can show the _____of an era. A. life B. culture C. health D. Interest 2. What does the name 'Jianguo' mean? A. Celebrating the National Day of China. B. Celebrating the building of New China. C. Wishing the family to make a lot of money. D. Wishing the person to be as beautiful as a flower. 3. The parents may name their child _____if they hope he/she will be an astronaut. A. Guihua B. Aoyun C. Shibo D. Yuhang 4. What is the passage mainly about? A. How to name a newborn baby. B. What makes a good Chinese name. C. Chinese given names then and now. D. The history of Chinese family names.