An optional college course named Appreciation of Jiangxi Opera     1     (teach) in a packed house recently at Nanchang. University in east China’s Jiangxi Province due to the professor’s     2     (innovation) way of teaching—putting on actual opera performances in her classrooms.

Waving water sleeves, and spinning folding fans while wearing traditional makeup and costumes, Chen Li, the instructor of this course, displayed the enchanting charm of Jiangxi Opera, a several-hundred-year- old local opera in front of the students. Many of the students recorded the performances and posted the video clips of the class on social media platforms,     3     (receive) millions of views and likes from netizens.

Instead of adopting the traditional form of stage play, Chen devotes more attention to her students’ interactive experience. “I invite my students to come to the stage and experience the whole process of the performance by     4     (they),” Chen said.

The course     5     she teaches has been open for many years, mainly introducing the history, tunes and performance characteristics of Jiangxi Opera. It’s not well known that this course, which is full of people now, was     6     ( original) rarely attended. “Before, I used to focus on the form of speech and lectures while the teaching effect was unsatisfying: the classroom was quiet     7     the students seemed uninterested, many even playing on their phones in class,” said Chen. To stir the enthusiasm of the students, Chen decided to put on a costume and turn the class into a stage to perform. With traditional garments(服装) and brandishing water sleeves, students are interested     8     the world of Jiangxi Opera. Faced with the unexpected fame, Chen was satisfied but also realized that a greater     9     (responsible) now rested on her shoulders. “I hope that even though     10     popularity of Jiangxi Opera wanes, this art can still be passed down through generations,” Chen said.

China’s traditional tea-making was added on Tuesday to the intangible cultural heritage list of the United Nations Educational, Scientific and Cultural Organization (UNESCO). The item “Traditional tea processing techniques and associated social practices in China”     1     (pass) the examination at the 17th session of the UNESCO Intergovernmental Committee.

China now has 43 items on the intangible cultural heritage list,     2     (continue) to be the most enlisted country in the world.

The traditional tea processing techniques and associated social practices in China consist     3     knowledge, skills, and practices concerning the     4     (manage) of tea plantations, picking of tea leaves, manual processing, drinking, and sharing of tea.

Since ancient times, Chinese people have been planting, picking, making and drinking tea.

    5     (base) on natural conditions and local customs, Chinese tea producers have developed six     6     (category) of tea: green, yellow, dark, white, oolong and black. Besides, there are other varieties,     7     contain flower-scented teas, and more than 2,000 tea products.

The traditional tea making techniques are     8     (main) concentrated in the four tea regions in China. Associated social practices, however,     9     (spread) throughout the country and shared by multiple ethnic groups.

Tea is popular in Chinese people’s daily life, served in families, workplaces, tea houses, restaurants and temples, to name a few.     10     is also an important part of socialization and ceremonies such as weddings and sacrifices.

Sunzi was a general, military strategist and thinker in the Spring and Autumn period, a time of constant warfare. His ingenious military strategies were recorded in a book     1    (entitle) Sunzi Bingfa. Written more than 2,000 years ago, this masterpiece is the world’s earliest existing book on military strategies and still remains     2    (value) to us today.

In his book, Sunzi attached great importance     3     war, believing it was vital to a country, which would determine the rise and fall of the country as well as the life and death of its people. Meanwhile, Sunzi also argued leaders should think twice    4     starting a war, because war was costly and would result in loss of life and destruction of resources. Apart from these general guidelines on war, Sunzi put forward specific strategies for     5     (win) a war. For example, he argued that in order to win victories in war, people should know    6     (they) and their enemies well. Carrying out surprise attacks and making good use of such natural conditions     7     climate also played an important role in defeating enemies. Sunzi’s ideal of military strategy, however, was making enemies surrender without     8     (actual) fighting a war.

These military strategies are the fruits of ancient Chinese wisdom, with a far-reaching influence on China and the rest of the world,     9     goes beyond the military world to other areas like business and politics. Today, Sunzi Bingfa     10     (study) in military academies and business schools around the world, and it continues to guide us in various aspects of our lives.

Why do many of us find     1     difficult or impossible to fall asleep in a bed other than our own? Is it because the bed is not     2     (comfort)? According to a new study, a significant reason     3     people cannot sleep well is what the scientists call "first night effect". They believe that one side of the brain acts     4     a "night watch" to warn us about potential dangers. It forces us     5     (stay) awake on the first night in a new environment. In the study, 35 young volunteers     6     (ask) to sleep in a lab for several days. Meanwhile, researchers watched their brain activities.

According to the researchers, on their first night, the left brains were more active than the right brains and people had     7     hard time sleeping. However, the activities of the left hemisphere of the brain decreased as days went by,     8     (fall) even to the point of complete calm. In this process, the participants got an increasingly better sleep experience.

The     9     (finding) suggest that the different rhythms of the two sides of the brain affect our sleep. When the two sides work     10     (different), the balance between them is broken.

The day starts early for Zheng Baogang and his tree-planting team. At about 5 a. m., they are on their way to the site of     1     abandoned mine in Huzhou, Zhejiang province.

Since June, they     2    (work) to restore the land to its past natural glory. It is the most difficult reforestation project related to the former coal mines and stone quarries in the area     3     Zheng has participated in. The Huzhou mine was put into operation in the late 1980s     4     it is about 200 metres deep now. Today, the entire site for restoration is more than 200,000 square metres.

    5    (wear) ropes and straps like mountaineers, Zheng and his team take     6    (step) down the cliff to loosen the soil and plant trees or grass seeds every day. In summer, the ground temperature can reach over 40°C, while in winter, it is     7    (extreme) cold.

Although the work is     8    (danger) and laborious, Zheng says it is rewarding to see the brown fields turning green. Estimated to be completed by the end of this month, the project will enter a two-year maintenance period     9    (restore) the area’s greenery.

In the past decade, Zheng has helped     10     such work at over 60 former sites. Some sites are even reviving parklands.

Marie Curie was one of the     1     (much) famous and greatest people of her time. Together with her husband Pierre, she was awarded the Nobel Prize in 1903, and she tried her best     2     (win) another in 1911. Marie     3     (be) the daughter of a teacher, and in 1891 she went to Paris to study physics and mathematics at the Sorbonne (索邦大学)    4     she met Piere Curie, professor of the School of Physics. They got married in 1895. At the end of 1898, they announced     5    discovery of radium. The Curies, were awarded the Nobel Prize for Physics in 1903.

Pierre's life was cut short in 1906 when he     6     (kill) by a carriage. Marie took over his teaching work,     7     (become) the first woman to teach at the Sorbonne. She received a second Nobel Prize for Chemistry in 191l. Despite her     8     (succeed), Marie continued to face great objection (反对) from men     9    (scientist) in France. In the late 1920s, her health was beginning to become worse, and she died     10    July 4th, 1934 from high-energy radiation from her research.