根据短文内容,填写合适的单词或用所给单词的正确形式填空,使短文意思完整。
43. one of the world's favorite drinks, tea has become more and more popular. Chinese tea art with its custom was included in the intangible cultural heritage list by UNESCO in 2022.
China is the birthplace of tea. And tea has a long history in China. It is said that a Chinese ruler called Shen Nong was the first person 44. (discover) tea as a drink. When a leaf dropped into 45. (boil) water, the taste of the water changed, and tea was born. From that moment on, the Chinese began to explore the soul(灵魂) of this special leaf.
It's known that tea culture gradually 46. (enter) normal people's life in the Tang Dynasty. The people in the Tang Dynasty not only drank tea, 47. also ate the tea leaves. That was why the process of tasting tea was 48.
(call)"tea eating". However, the Song people preferred "whisking tea(点茶)". In the Ming Dynasty, tasting tea gradually went back to 49. (it) true nature of "drinking tea". Later, the tea culture of our country 50. (final) spread into normal families. Now, tea is drunk by people all over China every day.

43. As
44. to discover
45. boiled
46. entered
47. but
48. called
49. its
50. finally

43. 此处表达“作为世界最受欢迎的饮品之一”，用介词As，位于句首首字母大写。
44. 固定结构the first person to do sth. 表示“第一个做某事的人”，用不定式作后置定语，故填to discover。
45. 此处表示“煮沸的水”，用形容词boiled修饰名词water，boiled water是固定表达“开水”。
46. 根据时间状语in the Tang Dynasty（在唐朝）可知句子为一般过去时，动词enter的过去式是entered。
47. 固定搭配not only...but also...意为“不但……而且……”，故填but。
48. 此处是一般过去时的被动语态，结构为was/were+过去分词，call的过去分词是called，表达“被称为”的含义。
49. 此处修饰名词短语true nature，要用it的形容词性物主代词its，表示“它的（茶文化的）”。
50. 此处修饰动词spread，要用final的副词形式finally，意为“最终”。