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 (脑内啡）一chemicals in the body that cause happiness 一 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, along with many other chemicals. 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 change. However, when their endocannabinoids were block with a different drug, their runner’s 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 well 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 boost your mood if you have depression, and it's 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 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.
2.The scientists gave mice drugs in their experiment to .
A. find what reduces the runner's high symptoms
B. see the specific symptoms of the runner's high
C. identify what is responsible for the runner's high
D. test what influences the level of endocannabinoids released
3.The underlined word “notion” in Paragraph 7 has the closest meaning to .
A. effect B. goal
C. question D. belief
4.According to the UK’s National Health Service, regular workouts .
A. are the best way to treat depression
B. can help ease depression symptoms
C. only work for those with serious depression
D. can help people completely recover from depression
难度: 中等查看答案及解析
June 8
Culinary (烹饪的）Historians of Washington: Food historian Joel Denker discusses how certain foods acquired culinary significance and ceremonial and economic importance. 2-4 pm .Free. Bethesda-Chevy Chase Regional Services Center, Meeting Room A，4805 Edgemoor Lane，Bcthcsda. 202-487-6740.
June 11
Beers of Umbria: Beer director Scott Weiss leads a tasting of Italian beers. 7:30 pm. $35,Via Umbria, 1525 Wisconsin Avenue. NW. 202-333-3904.
June 13
Wine Dinner: A special menu paired with sparkling (气泡的）wine. 6:30 pm. $75, not including tax and gratuity (小费).Wildfire. Tysons Galleria. Third Floor. 1714 International Dr., McLean. 703-442-9110.
June 14
Cooking Class: Chef Gerard Pangaud demonstrates (展示) how to make several seasonal French dishes.11 am-2 pm.$85. Hill Center at the Old Naval Hospital, 921 Pennsylvania Avenue. SE. 202-549-4172.
Hot Drinks from Around the World: Participants learn about and sample drinks made from purple com. yak (牦牛) butter, orchid root and more. 10 am. $27. Green Spring Gardens, 4603 Green Spring Road, Alexandria.
June 18
pm-地 Columbu
Gourmet Symphony: A special American cuisine-inspired menu accompanied performance by the Inscape Chamber Orchestra. VIP option available.7-9 pm. $49 Columbia Firehouse, 109 S. Saint Asaph St, Alexandria.
June 28
Sips: Cocktail reception featuring local artisans (技工）and mixologists (调酒师) benefit D.C. Central Kitchen and Martha's Table. VIP tickets also availabi 7:30 pm. $125 by
June. 11；$150 thereafter. Newseum, 555 Pennsylvania Ave.NW.
June 29
Suppers：Fundraising dinners taking place in more than 35 area homes, featuring chefs Alon Shaya,Carla Hall,Tim Ma,
Amy Brandwein and more. Proceeds benefit D.C. Central Kitchen
and Martha's Table.6 pm. $600.
1.Suppose you were doing research on French cooking，you would probably want to attend .
A. Culinary Historians of Washington on June 8
B. Beers of Umbria on June 11
C. Cooking Class on June 14
D. Sips on June 28
2.If you can spend no more than 20 dollars on an event, the most likely choice is to call .
A. 202-549-4172 B. 202-487-6740
C. 703-442-9110 D. 202-333-3904
3.The events mentioned in the article are mainly intended for .
A. artists B. historians
C. doctors D. food lovers
难度: 中等查看答案及解析
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).0r 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.
2.Outside My Window is a blog intended to share .
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
3.It can be concluded from the article that Burke .
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
4.What does Burke hope to do now?
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.
难度: 中等查看答案及解析
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. tradui0ns and development of morris dancing in the UK.
2.Which of the following is TRUE about morris dancing according to the text?
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.
3.What crisis is morris dancing feeing?
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.
4.What is the author’s attitude toward morris dancing?
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.
难度: 中等查看答案及解析
Did you take part in a camp this summer ? 1. To choose which camp is best for you, first you must do a bit of research.
Maybe you've never thought about it before, but every great summer camp has the same main goals — opportunity, challenge and growth.
Opportunity means you are given a chance to do something special. 2. For example, if you are interested in writing, then you can choose to join a journalism camp. You may even have the opportunity to meet famous journalists there.
3. You must finish the task and succeed in overcoming the challenge. Then you will have a sense of accomplishment. For example, you could take a lifeguard course at some summer camps. If you pass the exam, then you will receive a certificate (证书）to become a real lifeguard.
This also leads to the third and most important goal of every great summer camp personal growth. It doesn’t mean growing taller and stronger or more beautiful. It means seeing yourself improve, learning something new and doing something you didn’t know you could do before. 4..
So in the future, when choosing your next summer camp, remember to ask yourself: Is it a special opportunity? Is it a challenge? Will I grow?
5. These will all happen naturally when you have the right goals at summer camp.
A. Challenge means you are given a task.
B. It also means becoming more confident in yourself.
C. Some camps focus on developing a certain skill or ability.
D. But what about friendship, fun and joy?
E. There are so many summer camps and not all of them are the same.
F. Of course, summer camps aren't all about adventure or study.
G. It also makes you special because other kids don't have the same opportunity.
难度: 中等查看答案及解析
As my husband, Doug, stood on the busy New York city street to stop a taxi,I tried to protect my daugher from the cold December wind and rain.I Put niy head down to kiss her tiny face.
___ and wet, my husband gave up his attempt to nag down a taxi.I knew the ___.Just after her first birthday,we were told our daughter Katie has a ___brain illness.Since that moment,Doung and I felt like runners in a marathon race where the finish line kept __ . We knew Katie was runn.ng out of ____. It had taken months before we finally had a name for the ___，but we were told only a few specialists in the world knew how to____ it. Now, as we finally found a brilliant doctor to ___ our girl, we were in a strange ___ in the cold rain.
Just at the moment, a middle-aged woman pulled over and said, “Pardon me? May I offer you a(n)_____?”
Before we could say anything, she continued, “It's really no____for me. Just get in.”
It was then that I noticed her thick Irish accent , which ___me up like hot soup. We simply said, “Thanks! Roosevelt Hospital, please,” as we got in her car for the ride.
“Are you going____the baby?” she asked us.
I nodded my head, holding back my ______.
At the hospital, we ___her a dozen times for the ride. As the woman hugged me, I____her face was wet with tears. She promised to ___for us before she left.
After three more visits to New York and two more ___surgeries (手术)，Katie is cured.But the ___ of the Irish Angel still rang as a constant reminder of a tiny ray of light that appeared in our____ days.
1.A. Excited B. Frustrated C. Worried D. Satisfied
2.A. feeling B. spirit C. message D. sense
3.A. simple B. rare C. normal D. natural
4.A. coming B. lowering C. disappearing D. running
5.A. time B. confidence C. money D. courage
6.A. race B. illness C. doctor illness D. challenge
7.A. explain B. check C. reach D. fix
8.A. protect B. meet C. save D. encourage
9.A. country B. hospital C. town D. city
10.A. seat B. ride C. car D. umbrella
11.A. trouble B. difference C. question D. loss
12.A. picked B. called C. warmed D. woke
13.A. to B. after C. for D. with
14.A. surprise B. anger C. smile D. tears
15.A. thanked B. praised C. respected D. accepted
16.A. guessed B. believed C. understood D. noticed
17.A. work B. sing C. pray D. drive
18.A. eye B. brain C. kidney D. heart
19.A. voice B. bravery C. reward D. advice
20.A. busiest B. luckiest C. happiest D. darkest
难度: 中等查看答案及解析
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Do you have a pet?1.you do, congratulations, you are likely to have a 2. (good) mental state than those who don’t, reported Time magazine
According to the report, people with pets usually have lower blood pressure, a lower heart rate and a lower risk of 3. (have) a heart attack. These benefits may come from extra exercise of walking and playing with pets, and stress relief for having a good “friend”.
One study shows that 4. (pet) living creatures can help people with 5. (anxious), while animal toys have no effect at all.
In a 2016 study 6. (publish) in the journal Gerontology,elderly people7. were given five crickets (蛾蟀）in a cage became happier than before.
Other researches studied the effect of pets 8. children who have difficulty reading. When the children 9. (ask) to read aloud to a dog and 10. trainer they were less upset.
难度: 中等查看答案及解析
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个瀨字符号(∧)，并在其下面写出该加的词。
删除：把多余的词下划斜线(\)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限-词；
2.只允许修改10处，多科(从第11处起)不汁分。
Alibaba founder Jack Ma, his company has been valued at more than $ 221 billion of which Ma owned 6%, is put in the top position among China's wealthiest. But he stays outside the list ^ the world's 10 rich people.
Fought against a hard life, young Ma still managed to learn English well enough to gain a degree and became a teacher. Afterwards he started a translation agency in which took him to the US，where he introduced to the Internet. His fate was bound to change before he was accidentally appointed to take an American visitor Jerry Yang, a co-founder of Yahoo, in a tour of the Great Wall. The meeting obvious proved to be a turning point for all of them, promoting the birth of Alibaba and later cooperation with Jerry Yang.
难度: 中等查看答案及解析
如你是李华，最近你的一个外国朋友Peter来信说想了解一些有关中国水饺的情况。根据下列要点写封回信：
1. 水饺在人们心目中的地位；
2. 水饺的种类和吃法；
3. 一些春节期间吃水饺的习俗。
注意：1. 根据提示要点写一篇不少于80词的文章；
2. 可适当增加细节以使行文连贯；
3. 开头和结尾已给出（不计入总词数）。
Dear Peter,
I’m glad to receive your letter asking for the information about Chinese dumplings. Here is some information.
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
______________________________________________________________________
Best wishes!
Yours,
Li Hua
难度: 中等查看答案及解析