We often find that weekends and holidays feel so short while classes and work feel so long. Actually, though, we know that this is not true. But we still wonder where that strange feeling comes from.

    In fact, this is one of the ways that we're tricked by time, according to the website. All that S interesting. The website lists several wrong impressions (印象) we often have about time. Let's have a look.

    First of all, emotions affect (影响) our time-keeping abilities. Negative emotions (消极情绪). especially anxiety and boredom, make time seem longer because they make us concentrate (集中) more on the passage of time. However, when we are enjoying ourselves, we pay more attention to what we are doing and are likely to lose track of (失去对……的意识) time.

    Here is another example. In 2007, a group of scientists carried out a test. In the test, people fell 50 meters into a safety net and were then asked about their experience. Although the experience took shorter than 3 seconds, the people thought it was much longer than it actually was.

    This is because of the way our bodies reply to danger, according to the scientists. Our bodies produce a chemical called adrenaline (肾上腺素) when we are faced with danger. It allows us to concentrate better so that we can stay alive. As a result, we are able to remember far more details (细节) over a short period of time, which makes it seem like time is going more slowly.

    Another situation when we make mistakes about time is when we take afternoon naps (午觉). Have you ever had trouble telling what time it is after a long nap? That's because the best amount of time for a nap is 20 minutes. After 20 minutes, you enter a new stage of sleep called slow-wave sleep. If you wake up mid-way in this stage, it will take a while before you can correctly perceive (感知) time again.

    Yes, time can be mysterious (神秘的) and there is no way to control it. So, perhaps the best thing to do is to make good use of every minute.

Dear Alice, 

Welcome to my home town—Wenzhou. Wenzhou is a city {#blank#}1{#/blank#} a long history. It is in the {#blank#}2{#/blank#} of Zhejiang Province. It has a population of over nine {#blank#}3{#/blank#}. 

My home town is a popular tourist attraction(旅游景点). It is especially famous for many {#blank#}4{#/blank#} of interest, such as the Nanxi River, Yandang Mountain and Yuliao Beach. The weather here is not too hot {#blank#}5{#/blank#}too cold. You can visit it at {#blank#}6{#/blank#} time of the year. In recent(最近的) years, my home town has changed a lot. A large number of people have moved here who are now called New Wenzhounese, so the population is much {#blank#}7{#/blank#} than before. With the fast development, more and more hills are replaced by(被······代替) tall  {#blank#}8{#/blank#}. More and more factories are built, and it causes a lot of environmental problems. I hope my home town will become better and {#blank#}9{#/blank#} .

I'm looking forward to {#blank#}10{#/blank#} from you. 

Yours

Lucy

With lots of delicious food, different shops and exciting people, night markets (夜市) are very popular with Chinese people. They become the {#blank#}1{#/blank#}( one) place people would like to go to when they have a trip. People love to go there to spend time with{#blank#}2{#/blank#}(they) friends and family.

 It's easy to get popular snacks (小吃) at night markets with little money! These snacks show the food culture (文化) of {#blank#}3{#/blank#}( differently) places. But now, people can enjoy{#blank#}4{#/blank#}( have) special food at a night market. Eating all the snacks is a delicious way to spend an evening, so it's popular around {#blank#}5{#/blank#} country.

 There {#blank#}6{#/blank#}( be) not only delicious snacks in the markets. People can play games, shop for clothes and buy all kinds of interesting{#blank#}7{#/blank#} ( thing) !I {#blank#}8{#/blank#} ( go) to the night markets last night, and I didn't know where to start.

 Night markets are great places for people to have fun{#blank#}9{#/blank#} enjoy different cultures. They are also very important {#blank#}10{#/blank#}a country's economy (经济) . So, let's have fun at a night market!

Thousands of years ago, in the south of ancient China, there lived Shen Nong, a man who had an ox (4) head and a human body. Seeing that local people were suffering from diseases, he built ladders and houses on a high mountain to store hundreds of medical plants. To remember him, people named the place Shennongjia.

The legend(传说 )makes Shennongjia in Hubei an inviting place for tourists. Traveling there is a unique experience, as you can see scenery of the four seasons from different altitudes.

" When the bottom of the mountain is summer, the top is spring and while the foot of a hill is autumn, the top is covered with ice, " local people speak of the special climate of Shennongjia.

Shennongjia is also home to thousands of species of animals and plants. Many endangered animals live there, such as the golden monkey, the clouded leopard and the Asian black bear.

One interesting and mysterious thing about Shennongjia is its legend of wild men. Some people once claimed that they saw big prints or big-foot creatures. Yet so far, scientists haven' proved that it is true and some say they are just bears.

The beautiful place has received a new title. On July 17,2016,$hennongjia Forestry District was added to the World Heritage List as a natural site. China now has 56 world heritage(进产) sites, second only to Italy in the world.

Helping Hands—Lectures for students