1     is known to all that the Great Wall of China is a monument to thousands of years of culture. But today many parts of the wall, like the Jiankou section, risk erosion and     2    (destroy). As much as 30% of the wall lies in ruins because of the wind and rain. It can be too dangerous to reach some of the most fragile parts of the ancient wall especially the Jiankou wall, which winds through peaks and cliffs,    3    (make)the preservation of it no easy task.

Here comes the good news     4    the China Foundation for Cultural Heritage Conservation is cooperating with Intel to launch a revolutionary approach     5     its restoration: artificial intelligence and drones (无人驾驶飞机). The drones are used to map and measure sections of the wall.     6    (base) on the highly accurate images taken by the drones,     7    3-D model can be created and help the Foundation to plan for the restoration. Besides, the data collected by them has helped workers build support structures for the wall. Solutions like this can     8     (apply) to the restoration of the whole section of the Great Wall.     9     (hope), more of the Great Wall will remain for future     10     (generation) to see.

4 . Festival Season is Back

Lollapalooza

Where: Chicago, IL             September 29—October 1

Lollapalooza has been around for more than two decades. The three-day music festival, which is held at Chicago's central Grand Park, will run from late September to early October. A full vaccination or a negative COVID test will be required for entry. As for performers, Lollapalooza 2021 will be headlined by Foo fighters and Tyler, the Creator.

Bottlerock

Where: Los Angeles, CA       September 3—5

Bottlerock, which is Napa Valleys first large-scale music festival, will return in early September. As much as the festival is about the music, it's also about the food, cooking shows from famous chefs and more than 40 local wine factories featured each year. Headliners include the Foo Fighters and Guns N' Roses.

Life Is Beautiful

Where: Las Vegas, NV        December 17-19

Hosted in downtown Las Vegas, Life Is Beautiful is as glamorous as music festivals. Along with big names in hip-hop and electronic music, the festival also includes comedy acts and artists who create large art pieces live for attendees to see. Headliners include ASAP Rocky, Billie Eilish and Young Thug.

LA3C

Where: Los Angeles, CA            December 2-4

LA3C—which stands for Los Angeles, the Capital of Creativity & Culture — will host its festival in early December. Along with live music, the event will also include comedy shows, cooking experiences, fashion shows and class experiences.

The event is hosted by Penske Media Corporation, which is led by Chairman and CEO Jay. This will be the first festival of its kind to contribute to a city that combines talent, diversity and culture like no other while it is also engaged in an attempt to solve some of the city's pressing challenges,” said LA3C Chief Executive Juan Mora. “Jay's vision and the commitment to positively impact the city of Los Angeles is inspiring.”

5 . Six "sacrificial pits (祭祀坑)", dating back 3,200 to 4,000 years, were newly discovered in Sanxingdui Ruins site in Guanghan, Southwest China's Sichuan province. Over 500 artifacts, including gold masks, bronze wares, ivories, jades, and textiles, were unearthed from the site.

Sanxingdui site, first found in 1929, is generally considered as one of the most important archaeological sites along the upper reaches of the Yangtze River. However, large-scale excavation on the site only began in 1986, when two pits — widely believed for sacrificial ceremonies — were accidentally discovered.

Investigation in the area around No 1 and 2 pits was relaunched in October 2019, and No 3 pit was found in December 2019, according to Lei Yu, a researcher of Sichuan Provincial Cultural Relics and Archaeology Research Institute who heads the ongoing excavation. Thirty-four research universities and research institutes have cooperated in this project. He said the new discoveries will help to better understand many unexplained findings in 1986.

More excavation followed in March 2020, and five more pits were found last year. And detailed research began in October. Excavation capsules with hi-tech equipment were set up in the pits to better conserve the site.

Sanxingdui site covers an area of 12 square kilometers, and its core zone of an ancient city covers nearly 4 square kilometers. According to the National Cultural Heritage Administration, studies of Sanxingdui site will become a crucial project in an ongoing program Archaeology China, which tries to explain the origins of Chinese civilization and how diverse cultures communicate and come together.

March 12th is China’s annual National Tree-planting Day. On this day, millions of Chinese , from all walks of life, will put their work at hands aside    1     a moment, take spades and buckets as well as young trees, and go out     2     (green) up their hometowns.

China’s Tree-planting Day could date back to a proposal    3     (make) by Sun Yat-sen (1866-1925) and Tomb-sweeping Festival (April 5th)     4     (adopt) as Tree-planting Day then. However, April 5th was a late time for tree-planting in Southern China, so it was changed to March 12th in order to memorize Sun Yat-sen,     5     passed away on March 12th.

In February 1979, the 5th National People’s Congress of PRC made a     6     (decide) that March 12th would be taken as Chinese Tree-Planting Day, requiring the whole country to carry out tree-planting    7     (activity) on this day.

Now tree-planting in spring become a bit of tradition for Chinese. For those    8     (live) in the big cities, Tree-planting Day is     9     excellent time for city skipping. They often take the planting as a nice short tour back to nature with their family members. After their fieldwork together, they not only harvest    10     ( good) environment but also more harmonious family relations as well as enthusiasm for the future.