The concept of “gap days”     1     (appear) on a variety of social media platforms recently. Unlike a gap year, a gap day means an     2     (extreme) brief period of relaxation and escape from everyday routine. After resting, people will continue to devote     3     (they) to the busy pace of normal life.

Apart from “gap days”, other similar expressions have made     4     hit on the Internet, such as “city walk”, “da zi (activity partner)” and so on. This growing trend of creating new phrases or euphemisms (委婉语) for something otherwise ordinary and common has caused     5     (heat) discussion.

Some people think that these kinds of new phrases better cater to (迎合) people’s mindsets,     6     (show) their optimism. For example, the common expression “taking a walk” is neutral (中性的). But “city walk”     7     (be) the positive version of it, meaning “to explore the city with a curious mind”.

Others disagree, however, and think that it’s simply just a kind of “sugaring up”, satisfying one’s need for showing off. For example, “city walk” is the same as “taking a walk”     8     general. But by calling it a “city walk”, people feel like they are doing something fancier than it actually is.

But no matter how we think of these phrases, they have taken root in our daily lives and have already gained wide     9     (recognize) among the younger generation. So     10     we need to do is not make them out to be bigger than they actually are.

Hua Zhibing announced     1     June 3 in her blog that she will study in the Department of Computer Science at Tsinghua University in the upcoming semester. Hua is China’s first virtual student     2     (power) by Wudao 2.0,     3     artificial intelligence (AI) system.

    4     really sets Hua apart from any average college student is her amazing learning     5     (able). She can learn much     6     (fast) than any average human being. “If she begins learning at the six year-old level this year, she can reach the level of a twelve year-old in one year,” said Tang Jie, the     7     (develop) of Hua Zhibing. “We aim     8     (teach) her to think and feel like a human being. Now, Hua is     9     (closely) to breaking the Turing Test in painting pictures, writing poems and answering questions. We hope that she will master these basic skills first and then seek breakthroughs in     10     (reason) and feeling.”

Drinking two or more cups of black tea a day     1    (be) associated with lower risk of death from all causes, according to a new study     2    (publish) Monday in Annals of Internal Medicine.

The study looked at nearly 500,000 men and women aged 40 to 69 years old who participated     3     the UK Biobank, which houses in-depth genetic and health information, between 2006 and 2010. The database included information participants reported about     4    (they) own tea drinking habits, such as     5    (frequent) and what they added to their cup.

Some participants didn’t drink black tea a tall, but since the data came from the United Kingdom, there were plenty of people who drank it     6    (regular) and some who drank up to 10 cups a day, said lead study author Maki Inoue-Choi.

The Biobank followed up about 10 years after the     7    (origin) survey, and researchers found that people who drank two or more cups of tea daily in the interim(其间) were less likely     8    (die) from causes such as heart disease.

The research is     9     exciting look into tea drinking habits, but there is still more work     10     needs to be done before recommending dietary changes, said Howard Sesso, an associate professor of medicine at Harvard Medical School, who was involved in the study.

Tea is a healthy drink. Drinking tea in China could be considered as an art and to help people achieve a sense of calm and renewed energy. It is also     1     way to enjoy life better.

Stories     2     are about the discovery of tea are different depending on the people who you ask, but we know that Chinese people have been drinking tea since Shennong, 5,000 years ago. Usually, tea     3     (believe) to be medicinal, and is so central to     4     (day) life that an old Chinese saying includes tea in a list of seven important contents to be gathered each morning, along with firewood, rice, oil, salt, soy and vinegar.

Tea serves three primary     5     (purpose) traditionally in Chinese society: to show status, to bring people together and to improve wellness.

Drinking tea together is a sign of respect. In ancient times, “tribute tea”(贡茶) was     6     (special) kept for and presented to the Emperor. Tea still has a place in the life of the average people. It is common     7     (give) guests a cup of tea to welcome them into the home. But tea is more than a key of social customs. It is meant to act     8     a medium through which people can become much     9     (close) to nature. Drinking tea out in nature will create a spiritual connection to the environment and make people feel     10     (relax).

Today, giant pandas are one of the world's most well-known animals. And they are     1     (global) recognized as being a leading symbol of both China and nature conservation in general. But global interest     2     the animal only took off early in the 20th century.

The idea of the WWF's logo(标志)     3     (come) from Chi-Chi: a giant panda that arrived at London Zoo in 1961 — the same year that WWF     4     (create).

Aware of the need for a recognisable symbol that would break through all language barriers(障碍), WWF's founders agreed that the big, furry bear with her special black and white coat would make a great logo. The first sketches(草图) were done by the British environmentalist and     5     (art), Gerald Watterson.

Based on these, Sir Peter Scott, one of WWF's founders, drew     6     first logo. He said at the time that “we wanted an animal that was beautiful,     7     (endanger), and loved by many people in the world for     8     (it) attractive qualities. We also wanted an animal that had an impact(影响力) in black and white     9     (save) money on printing costs.”

The panda has since become a symbol not just for WWF,     10     for the conservation movement as a whole.

Different kinds of birds build different kinds of nests. Birds build nests in all sorts of places, from on the ground to high up in trees and on the sides of mountains. Some birds make nests     1     float on water in wet areas. The materials birds use to build nests depend on the     2     (surround) area.

The reason birds make nests is to have a     3     (protect) place to lay their eggs in and take care of young birds after they hatch. When building a nest, birds try not to be seen. They do not want     4     (danger) animals to see     5     their eggs are. However, if you watch     6     (close), you may be able to see birds carrying     7     (branch) and other things to build their nests with.

Most birds nest during the spring and early summer of each year. They raise their babies in quite a short time. They lay the eggs, and then keep them warm for three to four weeks. After they hatch, many young birds learn to fly in     8     little as ten days. Some birds return to the same nest year after year if they     9     (raise) their young successfully in it before. Often, there are old and new nests in the same tree. This     10     (confuse) animals which are looking for baby birds to eat.