3 . 阅读下面材料,在空白处填入1个单词或括号内单词的正确形式。
As you can see, many Chinese families drink tea after dinner or serve tea when greeting 1 (visitor). This is not only a 2 (health) habit but also shows rich culture and history. Chinese people can chat with a friend for a whole afternoon over a pot of good tea. In China, tea can be commonly seen as 3 sign of respect to the older generation. In the Chinese traditional wedding ceremony, 4 (express) their gratitude, both the bride and bridegroom kneel in front of their parents and serve them tea. People also make a serious 5 (apologize) to others by presenting tea. These various tea customs make up the rich Chinese tea culture.
As for 6 (it) history, tea, originating from China, is consumed around the world now. About 2,000 years ago, tea 7 (introduce) in Chinese texts as a healthy drink that made people live longer. Additionally, both green and black tea are said to be useful to prevent cancer, heart disease, and many other deadly diseases. The only thing 8 needs paying attention to is that tea should not be drunk along 9 meals.
Today, tea is gaining popularity around the world. In Japan, a tea ceremony is often held while people are 10 (drink) tea together. The ceremony, usually hosted in a teahouse, dates from the 16th century.