It is     1     (challenge) to keep the balance between the progress of society and the protection of cultural sites with the     2     (develop) of economy. However, the Aswan Dam project has set an example of finding solutions     3     such problems.

In the 1950s, the Egyptian government wanted to build a new dam across the Nile.    4     the proposal met with protests from people,    5     were concerned about the destruction of cultural relics.    6     (prevent) their loss, the government turned to the United Nations for help.

Later,    7     (country) around the world worked together with the Egyptian government. Cultural sites     8     (remove) piece by piece and then put back together in another place. The project ended     9     (success), in 1980. It can be learned that with the joint efforts of the global community, we can build     10     better tomorrow.

The warm weather outside may look perfect for outdoor exercise. But for those     1     are not that sporty, what could be nicer than having     2     (relax) afternoon tea with a few good friends     3     taking a break?

But are you familiar with the culture of afternoon tea ― its origins, what is included, and     4     proper etiquette(礼仪)?   Here are a few things you need to know about this     5     (tradition) English custom so that you can enjoy it more.

While the tradition of drinking tea    6     (date) back to about 3000 BC in China, it was not until the mid-17th century that the concept of “afternoon tea” first appeared in the UK.

In 1840, Anna Maria Russell, the     7     (seven) Duchess of Bedford, started asking for a tea tray with butter, bread and cakes at 4 pm every day, as she found she was hungry at this time every day while the evening meal in her house    8     (serve) late at 8 pm. She found this new habit difficult    9     (break) and soon invited other ladies in society to join her.

This pause for tea quickly became a fashionable social event.     10     the 1880s, the upper class would put on gowns, gloves and hats for their afternoon tea.

The first day of the first lunar month is Spring Festival, the beginning of a new year for China. Spring Festival is China’s     1     (big) festival and a day for family reunion. Being around family members at the turn of the year is     2     vital custom for the Chinese people.

The Spring Festival celebration is a continuous process,     3     (start) from the 23rd or 24th of the 12th lunar month. People often worship the kitchen god, clean their houses, do their shopping     4     put up Spring Festival couplets until New Year’s Eve on the lunar calendar.

In addition     5     staying up late on New Year Eve,     6     (have) an elaborate dinner is also key to the Spring Festival celebration. The New Year’s Eve dinner     7     (celebrate) in different ways around China.

Those in South China must have a dish of fish, because “fish” in Chinese     8     (sound) similar to the character for “prosperity”, symbolizing an abundant and     9     (comfort) life. Those in North China often eat dumplings,     10     symbolize “reunion” and “fortune”.

More and more students spend the day looking at their personal electronic devices. They are thinking mainly     1     these devices, and not much else. But recent research suggests that using technology during class time may     2    (significance) harm college students’ ability     3    (process) the subject material they are learning.

In the study     4    (involve) 118 students who were taking the class in psychology, the students     5    (permit) to use any electronic device as much as they wanted during half of their daily class periods. During the other half, researchers closely watched them to make sure no one was using any technology.

The students’ academic     6    (perform) was measured in several ways throughout the term. The researchers found that the average daily quiz results showed no evidence of harmful effects. However, the results of the larger tests and final exam told     7     different story. They showed that all the students performed poorly on questions covering material taught on days     8     they used technology in the classroom. The students hear what the professor is saying. But they might     9    (buy) things online or reading unrelated email at the same time. So they are not thinking deeply about the subject which makes     10     harder for the information to enter their long-term memory.

The United Kingdom, Great Britain, Britain, England- many people     1     (confuse) by what these different names mean. Getting to know at little bit about British history will help you solve the puzzle.

From the 16th century to the 19th century, Wales, Scotland and the Kingdom of Ireland were joined one by one     2     (create) the United Kingdom of Great Britain and Ireland. In the 20th century, the southern part of Ireland broke away     3     the UK,     4       (result) in the full name we have today: the United Kingdom of Great Britain and Northern, Ireland. The four countries     5     belong to the UK work together in some areas.     6    , they also have some differences. The United Kingdom has a long and interesting history to explore. Almost everywhere you go in the UK, you will be surrounded by     7     (evident) of four different groups of people who     8     (take) over at different times throughout history.

There is so much more to learn about     9     interesting history and culture of the United Kingdom. Studying the history of the country will make your visit much more     10     (enjoy).

Olympic and Paralympic medals for the Tokyo 2020 Games will be made from recycled mobile phones donated by the public.

Olympic host cities have    1    (tradition) obtained the metal from mining firms. But Japan,    2    lacks its own mineral resources, is keen on taking the theme of a sustainable future a step    3    (far).

“A project which allows the people of Japan    4    (participate) in creating the medals is really good, and helps raise the environmental awareness of our citizens,” said Tokyo 2020 sports    5    (direct) Koji Murofushi. “    6    the resources of our earth are limited, we need to recycle more and avoid waste. This program is setting an example.”

Collection boxes    7    (place) in local offices and telecom stores by now and they will remain there until the metal required is collected. Members of the organizing committee suggested the idea    8    government officials and companies earlier this year and won their support.

As a result, the medals hanging around Olympic winners’ necks will carry even more meaning than usual. People’s personal memories, once    9    (store) in their smart phones and other handheld devices, will take the round shape of an Olympic medal, one of the most precious    10    (prize) in sport.