3 . Earth Hour is organized by the World Wide Fund for Nature. It's a big event usually at the end of March every year. On this evening, people “go dark”.     1    

It's true that turning off lights for just one hour saves only a small amount of power.    2    On one level, joining in Earth Hour makes people think about the problem of climate change and what we can do in everyday life to protect nature.

But on another level, a large number of people’s acting together sends a powerful message to governments and companies.     3     They begin considering green issues when big decisions.

The logo(标识) of Earth Hour is “60+” .The number 60 is for the 60 minutes of Earth Hour.     4     In fact, people who join in Earth Hour say that taking part makes them want to do more for the environment.

    5     Musicians give concerts by playing acoustic(原声的) instruments instead of electric ones, and using candles instead of electric lights. Celebrity chefs have created special recipes for families to prepare and eat by candlelight. Tree-planting sessions, group walks and runs are also among the options.

4 . Bird pattern carved on Yubi in Chinese, comes alive and circles around, while an audio guide introduces the cultural relic and the bird’s connotation (寓意). Such is the experience of watching a cultural relic through a pair of augmented reality (AR) glasses at the Liangzhu Museum.

The museum displays various burial objects found in the Archaeological Ruins of Liangzhu City in Hangzhou, showcasing the civilization of prehistoric rice agriculture and a state-level society between 3,300 B.C. and 2,300 B.C. The site was included on the UNESCO World Heritage List in July 2019, providing profound and compelling evidence that Chinese civilization started 5,000 years ago.

Using AR to tell Liangzhu’s ancient story and let the young people sense and feel close to cultural relics through modern technology is an important task at the museum, making it a pioneer in using modern technology and a hot place for tourists.

“I found that most students were very curious about it, and it could inspire students to have the desire to learn more,” said Chen Xi, the AR glasses provider. “I’ve never seen this before. The illustration of the ancient wild birds above is not that clear. But with the AR glasses, I know what the ancient wild bird exactly looks like and how it is different from what we see on TV,” said Rong Mei, a visitor in her twenties. “Compared with traditional ways of appreciating a cultural relic, AR glasses guide has virtual images which help people visually understand the information behind the relic, such as in which life scenarios was the relic used, its function and its cultural connotation,” said Zhou Liming, director of the Liangzhu Museum.

From digitalization to intelligentization (智能化), the Liangzhu Museum took more than five years. It started to collect the digital information of the ruins and relics since 2015. It paves the way for the museum to deliver Liangzhu’s story through multimedia approaches to attract more people, especially the youth, as modern technology bridges the gap between young people and cultural relics.

According to Xinhua News Agency, the Palace Museum and Huawei signed a strategic cooperation agreement on March 15. The two sides will set an example     1     5G application.

The Palace Museum received more than 17 million visitors in 2018,     2    (make) it the most visited museum in the world. In the past 20 years, an office information network covering the whole museum     3     (build) gradually. The museum has developed an App that provides an in-depth     4    (explain) of cultural relic information and cultural services. Also, the museum has research on the application of VR, AR, Al and other     5    (technique) in museums.

    6     signing of the agreement marks a new chapter in the strategic cooperation between the Palace Museum and Huawei Technologies Co. So, Huawei will make efforts     7    (accelerate) the intelligent construction of the Palace Museum.

“The 600-year-old Palace Museum has never been so close to science and technology.” Shan Jixiang said     8     (proud), director of the Palace Museum.

Shan shared many ideas about the 5G Palace Museum. With the help of advanced technology,    9     is expected that in the future, audiences around the world will be able to experience and visit the Palace Museum, whether it is a field trip or a virtual tour. Also, the use of Al technology provides a     10    (broad) platform and stronger knowledge support for cultural relics among young people.

The Students’ Union

7 . The Worlds' Best Bookshops

There's nothing like being surrounded by books， wherever you are． Here are the finest oases of literature that travellers can bring you．

Daikanyama T﹣site | Tokyo

It is well worth visiting even if just to admire the building's beautiful， crisscrossed architecture． Once you've had your fill of roaming three floors' worth of bookshelves， there's the bar， the coffee shop， or even the video rental space to give you more reason to stay just that little bit longer． Grab a book， order a beer and dive into its pages． I could have stayed hours here．

City Lights | San Francisco

The three﹣storey establishment publishes and sells titles in poetry， fiction， translation， politics， history and the arts． It hosts events and readings， and runs a non﹣profit of the same name that aims to promote diversity of voices and ideas in literature． It's opposite Vesuvio， a bar frequented by Kerouac and other Beat﹣generation writers and artists．

Shakespeare and Company | Paris

I made a special trip to the Left Bank for this one when I was in Paris． It has two floors packed with English﹣language texts， and I was particularly struck by any spare wall space devoted to notes from visitors ﹣ heartfelt messages to a loved one， dedications to the shop itself， or a quote from a favourite author or philosopher．

Hutatma Chowk | Mumbai

A few years ago I visited India， investigating Rudyard Kipling's connections with the country． I spotted a cheap copy of The Jungle Book on one of the tarp﹣covered book stalls at Hutatma Chowk （Martyrs' Square）． The booksellers here are like amateur librarians， able to lay their hands on almost any title you ask for． To me， those well﹣thumbed （翻旧了的） books spoke volumes about the changes of Mumbai's readers in the 150 years since the city gave us Kipling．

In order to encourage literacy (读写能力) among kids who are more used to playing on their smart devices. LA County     1    (library) are no longer charging library late fees for young readers. To make it even     2    (easy) for the kids, their schools have also signed up for library cards for them.

For those     3     already have a late fee balance, the library offers a unique way to pay it back by reading it away.

Kids can now go to their local library and tell the librarian that they would like     4    (pay) off their balance. In turn, the Librarian will start a timer and for every hour kids spends reading $5     5    (take) off of their debt. At least 100 students every week     6    (read) away their debt and a total of 3, 500 blocked accounts have been cleared. This debt relief can also be used for paying off lost or     7    (damage) books as well.

The program has already had a major effect     8     readership in the county. 15,000 kids have used their new library cards and parents said they allowed their children to check out books due to the     9    (decide).

    10     seems that the smell of old books can still have a place in the younger generation’s hearts — they just need a bit of encouragement.

9 . Every year, over 7.72 trillion kilograms of plastic is washed into the oceans. There are five huge areas in the world’s oceans that are a “soup” of floating rubbish. One of these areas, the Great Pacific Garbage Patch (GPGP), is three times as large as France.

Over a year ago, a group called Ocean Cleanup began using a huge floating screen to try to clean up plastic pollution in the ocean. After several failures, the group is now collecting plastic in the Great Pacific Garbage Patch. But the plastic is spreading out over a large area, so it's impossible to collect it piece by piece. So, the Ocean Cleanup had a plan. They got a long floating U-shaped tube with a screen hanging below it. As the tube and screen are pushed by the water and the winds, the U is meant to collect plastic rubbish, making it easy for a ship to collect and remove the plastic. The system uses the power of the wind and ocean, so it doesn’t need fuel.

The group began testing the first version, called “System 001”, last September. But it soon became clear that the screen was just moving with the plastic, not collecting it. Sometimes plastic would wash over the top of the tube. Even worse, System 001 got broken by surging seas and had to be towed to Hawaii for repairs.

But Mr. Slat, who got the idea for the Ocean Cleanup system, sees the project as an experiment, which means a failure is a chance to learn. The team collected and studied lots of information about what worked well and what didn’t. Then they changed the design. In June, an improved version, called “System001/B” was towed back to the GPGP.

The new version has a parachute (降落伞) attached to it. This makes the system move slightly slower than the plastic, allowing the plastic to be collected inside, as planned. But this success is still just the beginning of the work of the Ocean Cleanup. They want a better and larger system.