1 . Running is often tiring and a lot of hard work, but nothing beats the feeling you get after finishing a long workout around the track.
But while it’s long been believed that endorphins (内啡肽) —chemicals in the body that cause happiness—are behind the so-called “runner’s high”, a study suggested that there may be more to this phenomenon than we previously knew.
According to a recent study published by a group of scientists from several German universities, a group of chemicals called endocannabinoids (内源性大麻素) may actually be responsible for this familiar great feeling.
To test this theory, the scientists turned to mice. Both mice and humans release high levels of endorphins and endocannabinoids after exercise. After exercising on running wheels, the mice seemed happy and relaxed and displayed no signs of anxiety. But after being given a drug to block their endorphins, the mice’s behavior didn’t seem to change. However, when their endocannabinoids were blocked with a different drug, their runners’ high symptoms seemed to fade.
“The long-held notion of endorphins being responsible for the runner’s high is false. Endorphins are effective pain relievers, but only when it comes to the pain in your body and muscles you feel after working out,” Patrick Lucas Austin wrote on science blog Lifchacker.
Similar studies are yet to be carried out on humans, but it’s already known that exercise is a highly effective way to get rid of stress or anxiety. The UK’s National Health Service even prescribes (开药 方) exercise to patients who are suffering from depression. “Being depressed can leave you feeling low in energy, which might put you off being more active. Regular exercise can improve your mood if you have depression, and its especially useful for people with mild to moderate (中等的) depression,” it wrote on its website.
It seems like nothing can beat that feeling we get after a good workout, even if we don’t fully understand where it comes from. At least if we’re feeling down, we know that all we have to do is to put on our running shoes.
1. What did scientists from German universities recently discover?| A．Working out is a highly effective way to treat depression. |
| B．The runner’s high could be caused by endocannabinoids. |
| C．Endorphins may contribute to one’s high spirits after running. |
| D．The level of endorphins and endocannabinoids could affect one’s mood. |
| A．To find what reduces the runner’s high symptoms. |
| B．To see the specific symptoms of the runner’s high. |
| C．To identify what is responsible for the runner’s high. |
| D．To test what influences the level of endocannabinoids released. |
| A．Effect. | B．Goal. | C．Opinion. | D．Question |
| A．They can help ease depression symptoms. |
| B．They are the best way to treat depression. |
| C．They only work for those with serious depression. |
| D．They can help people completely recover from depression. |
2 . China’s Most Mysterious Internet Celebrity(网红)
Her life looks like one straight out of a fairy tale (童话). Li Ziqi impresses millions of people with her videos, where she makes seemingly everything with her own two hands, from dyeing a dress with fresh grape skin to fashioning traditional lipstick from roses in her garden.
She has millions of fans at home and overseas, but she remains a mystery to many of them. She barely speaks in her videos, and she rarely gives interviews. But now, she’s ready to open up to us.
To find Li, we had to travel to rural Sichuan Province in southwestern China, where she grew up. Li grew up with her grandparents there. But they were poor, so when she turned 14, Li went to work in the city. In 2012, she decided to return to the countryside to take care of her grandmother.
Four years later, she started filming her life there. Whatever she makes, she leaves no stone unturned, going as far as raising baby ducklings just to make a sauce out of salted duck eggs.
Apart from food, she’s also known for her videos presenting traditional crafts, like building a bamboo furniture set, which she says was inspired by one of her grandfather’s old benches. Li’s stylized presentation of rural life stands out in China’s extremely competitive field of online videos.
Today, four years after she first picked up the camera, Li is one of China’s most successful online video makers.
1. How does Li Ziqi impress millions of people with her videos?| A．She makes seemingly everything with her own two hands. |
| B．She returned to the countryside to take care of her grandmother. |
| C．She grew up with her grandparents in rural Sichuan Province. |
| D．She has been filming her life where she grew up. |
| A．She lives a rural life far away from them. |
| B．She barely speaks in her videos, and rarely gives interviews. |
| C．They don’t know about the things that she makes. |
| D．They don’t understand how she becomes so successful. |
| A．She goes past many stones. |
| B．She turns every stone. |
| C．She thinks the opposite. |
| D．She searches thoroughly. |
| A．Humorous. | B．Objective. | C．Approving. | D．Negative. |
3 . An ageless question: When is someone “old”?
What does “old” really mean these days? This isn’t a meaningless question — not only does the definition of “old” have an outsized impact on how we feel about ourselves (not to mention how others view us), it also matters to policymakers determining how to plan for aging populations.
The United Nations historically has defined older persons as people 60 years or over (sometimes 65). It didn’t matter whether you lived in the United States, China or Senegal, even though life expectancy is quite different in each of those countries. Everyone became old at 60.
Researchers Sergei Scherbov and Warren Sanderson, who study aging, are suggesting overturning the one-size-fits-all-across-the-globe definition of old. Instead, they talk about “prospective age”, which looks to the future. Everyone with the same prospective age has the same expected remaining years of life.
Scherbov explained that young and old are relative concepts, and their common reference point is life expectancy. It makes sense that “old” would vary between nations, especially between more-and less-developed countries, with differences in education, death rates, access to health care and life expectancy.
But who is “old” also varies-widely-between individuals. The point, says Scherbov, is that personal age is dependent on our “characteristics” — understanding abilities, disability, health history and even education levels. Those with more education tend not to smoke, exercise more frequently, have better diets and have regular checkups — and, therefore, live longer, meaning the beginning of their old age comes later, says Scherbov.
1. What is the first paragraph mainly about?| A．How do we feel about ourselves? |
| B．How do others view us? |
| C．The importance of the definition of “old”. |
| D．The plan for aging populations. |
| A．The expected remaining years of one’s life. |
| B．The beginning of one’s old age. |
| C．The differences of our “characteristics”. |
| D．The age when one becomes old. |
| A．Understanding abilities. | B．Nations. |
| C．Education. | D．The reference point. |
| A．As much exercise as possible. | B．Losing weight. |
| C．Studying history. | D．Improving the education level. |
4 . Affordable Quality Rechargeable
Digital Hearing Aid — For Only $199*
(* Each when you buy a pair)
The new HearClear GOTM Rechargeable Digital Hearing Aids feature advanced digital technology at an unbelievably affordable price! The GO has the same key elements that all high-end digital hearing aids share while leaving out fancy bells and whistles that increase cost and require expensive adjustments. You'll be happier saving a lot of money and reconnecting with friends and loved ones!
Your lightweight and discreet（考虑周到的）GO hearing aids are amazingly convenient! With the GO's included charging station, you won't have to keep replacing tiny hearing aid batteries, and the GO is pre-programmed for most mild to moderate（中等的）hearing losses-no costly professional adjustments needed.
You can spend thousands on an expensive hearing aid, or you can spend just $239 for a hearing aid that's great for most mild to moderate hearing losses (only $199 each when you buy a pair). We're so sure you'll be happy with your new hearing aids. We offer a 100% Money Back Guarantee -Risk Free.
Money saving offer: 1-888-870-7201 Use Coupon（购物优惠）Code RDZS
Visit and save: www.AdvancedHearing.com/RDZ5
1. What are included in the hearing aids?| A．Bells. | B．Whistles. |
| C．Charging stations. | D．Expensive adjustments. |
| A．Most mild. | B．Mild. |
| C．Moderate. | D．Severe. |
| A．$199. | B．$239. | C．$398. | D．$478. |
5 . The Water Angel（天使）
From June to September, the temperature in Phoenix is so high that it can easily hit the century mark. But that doesn't stop hikers（徒步旅行者）from
Unfortunately, many people
Cullymore was on Camelback Mountain one day in 2015 when a British
One hiker who was
| A．refusing | B．planning | C．attempting | D．finishing |
| A．Signs | B．Signals | C．Offices | D．Officials |
| A．at most | B．at least | C．at all | D．in all |
| A．supplied | B．suggested | C．warned | D．wasted |
| A．up | B．down | C．over | D．through |
| A．notice | B．ignore | C．give | D．take |
| A．Fortunately | B．Surprisingly | C．Generally | D．Immediately |
| A．found | B．kept | C．caught | D．set |
| A．up | B．off | C．out | D．in |
| A．made | B．created | C．desired | D．earned |
| A．journalist | B．scientist | C．artist | D．tourist |
| A．light | B．wind | C．heat | D．rain |
| A．required | B．inspired | C．advised | D．allowed |
| A．unforgiving | B．unbelievable | C．unforgettable | D．unwilling |
| A．picks up | B．puts on | C．clears out | D．reaches into |
| A．offered | B．handed | C．shown | D．lent |
| A．water | B．sign | C．desert | D．city |
| A．afraid | B．sad | C．lucky | D．proud |
| A．rushed | B．broke | C．changed | D．ran |
| A．danger | B．search | C．hope | D．support |
6 . Could bike share programs lead to greater cycling safety?
In April 2015, Philadelphia introduced a bike share program. By 2019, there were more than 1,300 bikes and 400 pedal-assisted electric bicycles available. People used them for about 50,000 trips a month.
Before the introduction of the bike share program, the rate of bicycle-car accidents had been gradually increasing. By May 2015, the month after the introduction of the program, the rate was twice that of January 2010.
But the researchers, writing in the American Journal of Public Health, found that from that time through the end of 2018, the rate decreased by an average of 13 percent a year, despite the increases over those years in the number of bicycles on city streets, and even though Philadelphia made no major basic construction changes, like adding many protected bike lanes (自行车道).
The lead author, Ghassan B. Hamra, an assistant professor at the Johns Hopkins Bloomberg School of Public Health, said it appeared that there is safety in numbers: the more bikes on the road, the more car drivers adapt to their presence, and the safer cyclists may be.
“We all know that bike riding is a healthy activity, physically and mentally,” he said, “but there might be concerns that if you introduce a bike share program there will be negative consequences. We saw no evidence of that in Philadelphia.”
1. What has happened to the number of bicycle-car accidents with the introduction of the bike share program?| A．It has increased. | B．It has reduced. |
| C．It remains the same. | D．It is unknown. |
| A．Many protected bike lanes have been added. |
| B．Car drivers are more used to their presence. |
| C．More people take up bike riding as a healthy activity. |
| D．Negative consequences have appeared. |
| A．He is in favor of it. | B．He disapproves of it. |
| C．He brought it in. | D．He is concerned about it. |
| A．Sharing bikes, cutting accidents | B．Problems with sharing bikes |
| C．Basic construction changes | D．Share program in Philadelphia |
注意：1.词数100左右；2.短文题目和首句已为你写好。
My favorite sport
Many people like sports.
_________________________________________________________________________________________________________________________________________________________________________________________________________________________
8 . How to enjoy being a teenager
Being a teenager can be challenging with your hormones going wild.
Setting individual expectations.
Everyone is different, especially in their teenage years.
For lots of people, the teenage years are full of worries-stop paying so much attention to them! Many worries are based on what other people think, rather than what you think. Go ahead and do what you want to do, without factoring in the opinion of others; choose your own path in life, and don't worry about what others think of your choices! Live it the way you want to.
Work to improve your social skills.
Some teens have trouble with social interaction, with the reasons behind it varying. Since social interaction is necessary in order to succeed, it's important to learn how to cope with shyness and social anxiety. Consider working with a friend or a family member of close age to develop your social skills.
Keep good relations with your family.
Many teenagers become bad-tempered, withdrawn, and stop valuing family as much as they used to. Try to avoid this. Family is one of the most important connections in your life.
| A．Develop your sense of self. |
| B．Realize that the teen years are not all alike. |
| C．Family members-especially parents probably worry about you during your teenage years. |
| D．But that doesn't mean you can't enjoy the teen years. |
| E．It's the building blocks for all relationships you develop. |
| F．There's really no "way" to enjoy being a teenager except for the "way" you make on your own! |
| G．It may not replace new social exchanges, but it's good practice. |
9 . Andreea, 18, from Romania, sent a photograph of the view from her window and included a brief (简短的）apology: “Sorry, this picture is plain and boring. No one would like it.”
At home in New Jersey, US, Coreen Burke, 16, clicked on the same image in her inbox. She saw a village with its old houses, and a distant chimney puffing smoke.
“Isn’t this amazingly different from my country?” she thought to herself.
Burke saw potential in that photo. She posted it to her blog, Outside My Window，which features a daily snapshot (快照）of someone’s window view from different people around the world.
The concept (理念）is simple: We can all relate to the act of staring through a pane of lass (一块玻璃)，onto the scene on the other side,
“Maybe if we understood the way people from all over the world live,” she added, “we would get along better than we have been lately.”
On the sit，Can see Frederic's window in the south of France, looking out on sailboats anchored in a tranquil harbor(宁静的港湾).Or Virginia's view in Canada, a winter scene with trees
laced in white.
Like most high school students, Burke has yet to travel the world. But she hopes to someday collect many stamps in her passport,starting in Greece and India. In the meantime,
however, she's devoting herself to her website.
she posted the first window view from Switzerland, a sunset captured (拍摄）by an 18-year-old.Then others came flowing in by email, up to seven a day, from as far as Kazakhstan and Indonesia.
Contributors are marked on a map on her bedroom wall: A blue dot indicates (表示）their country and a pink dot shows their city, if they provide it. The most responses have come from Europe - Estonia, Poland, Italy, Germany and Sweden, to name a few. She is crossing her Angers that she 11 receive a photo from Africa or Antarctica, which are unrepresented so far.
And while Burke’s become a cyber crusader (斗士）for appreciating the beauty outside our own windows, it will probably come as a surprise to learn that she doesn’t actually have a window in her own bedroom. But with the views out of other people’s she can enjoy whenever she wants to, she surely doesn’t mind.
1. How might Burke describe Andreea’s picture?| A．Boring. | B．Charming. |
| C．Strange. | D．Plain. |
| A．the view from Burke’s window |
| B．pictures of rural New Jersey |
| C．photos of window views from people worldwide |
| D．beautiful scenes of places of interest |
| A．believes we should reach out to people of different cultures |
| B．has been invited to visit various places thanks to her website |
| C．was inspired to create a website after her trip to Switzerland |
| D．has collected the most pictures from America and Europe |
| A．To have a window of her own. |
| B．To become a cyber crusader. |
| C．To own a large world map in her bedroom. |
| D．To get responses from Africa or Antarctica. |
10 . If you ever visit an English village,make sure to look out for morris dancing.Undoubtedly one of the strangest of English culture, morris dancing is a form of folk dancing that dates back to the 15th 15th century.If you ever get the opnortunity,you really have to see it.
Men and women wearing old-fashioned,tattered(褴褛的)clothing dance in the street of towns and villages across the country during the holiday periods. Women wear long，frilly (有 褶皱边的）skirts and men wear short trousers w.th bells attached to them. They dance to traditional folk music which is often played on traditional musical instruments.
Some groups carry heavy black sticks which they bash (击打）against each other while they dance. Other groups wave handkerchiefs in the air whilst they perform. The dances are usually performed near a pub so that when it s over, the dancers and spectators (观众）can sing some traditional folk songs over a pint of beer. The festivities (欢庆）will often continue long into the night, by which point most people are too drunk to think about performing again.
Morris dancing is a great English tradition but it’s facing a big crisis (危机).As the years go by, fewer and fewer young people are joining morris dancing groups. The dancers are getting older and older and eventually, if nothing is done to change this trend, the tradition will die out within the next few decades.
If you’ve ever had the fortune to see morris dancing, you may understand why teenagers aren’t rushing to sign up. Putting it bluntly (直截了当地)，it’s not exactly the coolest thing for an 18-year-old to be doing. Why dress up in bells and funny costumes when you could be going clubbing (逛夜店)？ Or playing sport? Or doing anything else?
However, it would be a great shame to lose such a fun and vibrant (有活力的)part of England’s history and culture. It’s important to look after some traditions and customs especially when it’s something as harmless and happy as morris dancing. So here's a toast to the next generation of would-be morris dancers! Let's hope they don’t leave it too late.
1. What is the article mainly about?| A．The popularity of morris dancing in the UK. |
| B．The origins of mortsdancing in the UK. |
| C．Different attitudes toward morris dancing in the UK. |
| D．traditions and development of morris dancing in the UK. |
| A．Dancers usually wear long dresses with bells attached. |
| B．People sing traditional folk music while they dance. beers |
| C．Dancers perform with sticks or handkerchiefs in their hands. |
| D．People prefer to dance till nighttime in pubs and then stop to drink beers. |
| A．There is a lack of professional dancers. |
| B．It is losing appeal among young people. |
| C．It is accused of lacking fun and variety. |
| D．Its traditions and customs have been forgotten. |
| A．It is a good way for people to stay healthy and positive. |
| B．It is a cultural heritage that deserves more attention. |
| C．It is too old-fashioned and needs to be improved. |
| D．It is flin and vibrant and every teenager should learn to do it. |
