1 . A new study shows that when heavy cognitive (认知的) work is lasted for several hours, it causes potentially poisonous materials to build up in the part of the brain known as the prefrontal cortex (前额叶). This in turn changes your control over decisions, so you shift toward low-cost actions requiring no effort or waiting as cognitive tiredness sets in.
Influential theories suggested that tiredness is a sort of illusion (错觉) cooked up by the brain to make us stop whatever we are doing and turn to a more pleasing activity but new findings show that cognitive work results in a true functional change — accumulation of poisonous materials — so tiredness would indeed be a signal that makes us stop working but for a different aim: to preserve the perfection of brain functioning.
To look for evidence of this, researchers monitored brain chemistry over the course of a workday. They looked at two groups of people: those who needed to think hard and those who had relatively easier cognitive tasks.
They saw signs of tiredness only in the group doing hard work. Those in that group also showed in their choices a shift toward options with rewards at short delay with little effort. Critically, they also had higher levels of poisonous materials in the brain. Together with earlier evidence, the researchers say it supports the concept that poisonous materials accumulation makes further activation of the prefrontal cortex more costly, such that cognitive control is more difficult after a mentally tough workday.
So, is there some way around this limitation of our brain’s ability to think hard? The answer is negative. But there is good evidence that poisonous materials disappear in the brain during rest and sleep. The study result may have other practical uses. For example, the researchers say, monitoring of prefrontal metabolites (前额代谢物) could help to detect severe mental tiredness. Such an ability may help adjust work plans to avoid burnout. They also advise people to avoid making important decisions when they’re tired.
1. What is the purpose of our tiredness according to the new study?| A．To keep our brains in a good condition. | B．To make us stop whatever we are doing. |
| C．To force us to improve our abilities to work. | D．To change brain chemistry over the workday. |
| A．The loss of our abilities to work. | B．The poisoning of our brain tissue. |
| C．The attitude to our responsibilities. | D．The difficulty in cognitive control. |
| A．By summing up the old data. | B．By comparing experiment data. |
| C．By referring to historical reports. | D．By interviewing many scientists. |
| A．They get round the brain’s limitations. | B．They shouldn’t work out key decisions. |
| C．They try to avoid sleeping and resting. | D．They have to leave work for a holiday. |
2 . TEC Community Event Series
Date and time
Thursday, July 13, 11 a.m.—11:45 a.m.
Location: Online
Duration: 45 minutes
Join our monthly community event! At TEC we have found that community increases success and consistency.
Have you ever wondered why the needle does not move, even when you get your 10.000 steps in? Do you still feel overly sore after a weekend full of activities? Or you can’t seem to break the pattern with ongoing injuries?
If this sounds like you, then TEC has you covered! From movement to mindset, we will help you engage your body and give you easy-to-follow movements that you can do from anywhere. This will help you accomplish your fitness goals, feel great in all your summer activities and avoid the roller coaster of injuries!
TEC monthly community event!
Stay active beyond your training for performance, and prioritize your overall health.
Each movement will help you maximize your recovery and avoid any of the bad effects of your workouts, for example, overuse injuries, tightness, range of motion issues, etc.
Have a body and mind ready to interact in all the activities the healthy way!
Connect with other athletes and individuals.
Ask TEC coaches and other athletes questions and collaborate (合作) on best practices to optimize (优化) your mindset!
This event is for you if：
★You desire a community to grow with.
★You have strong feelings of enthusiasm for workouts.
★You enjoy achieving at a high level.
★You are looking for support for your mindset, sport or fitness.
This event is not for you if：
★You are close-minded and are not looking to be challenged or encouraged.
★You don’t value learning from others.
★You are looking for a place to sell your products or services.
1. What can we learn about this event?| A．It takes place every month. |
| B．It offers 45-minute offline training. |
| C．It shows people the secret to success. |
| D．It aims to help measure people’s weight. |
| A．They will recover immediately when injured. |
| B．They will gain permanent free workouts. |
| C．They will get one-to-one guidance from a coach. |
| D．They will learn how to avoid some injuries when exercising. |
| A．Those who hope to enjoy a quiet weekend. |
| B．Those who want to attract potential customers. |
| C．Those who attach importance to an active lifestyle. |
| D．Those who desire good academic performance. |
3 . It was a Sunday and the heavy storm had lasted all night. The morning after the storm, though, was beautiful: blue skies, warm air and a calm, inviting sea touching the shore gently.
My father realized it was a good day for fishing and invited my sister and me to go with him. I was only 14 and fishing had never been my thing, but I decided to go all the same. I’m so glad I did.
On the road to the harbor, we could see the terrible destruction on the coast, but the harbour itself was in fairly good shape. After all, it was protected by the arms of a bay that had only one tiny channel to the sea. As we got on board, we noticed two big humps (脊背) in the distance.
On approaching them, we saw it was a mother whale with her baby. We couldn’t believe it—there aren’t any whales along the coast here. The storm must have driven them across the ocean into the bay, in which the still water was so badly polluted that nothing could survive.
The little baby whale—actually as big as our boat—was obviously stuck and could not move. The mother dived under the water and came up suddenly, making big whirlpools (漩涡) and waves. “She’s trying to help her baby, but on the wrong side,” my father said. At this point, my father moved our boat in a semicircle to the other side and, heading the boat towards the baby whale, pushed it gently. With our several gentle pushes the big hump turned over and disappeared under water. Then it swam up right beside its mum. They struggled in their desperate attempts to escape but missed the exit and started heading in the wrong direction. We hurried up to the whales and tried to lead them towards the bay channel. Slowly, they let us lead them, sometimes rising from the water right beside us to breathe, and to give us a trusting look with those huge eyes. Once they hit their first part of clean water flowing straight from the sea, the mum gave us a wave with her tail and off they swam into the distance.
In the excitement it had felt like only a few minutes, but we had been with those wonderful animals for almost an hour and a half. That was the simple and lasting beauty of the day. Nearly four decades later, I still look back fondly to that golden day at sea.
1. The author says “I’m so glad I did.” in Para.2 because __________.| A．he witnessed the whole process of fishing | B．he enjoyed the beauty of the calm sea |
| C．he experienced the rescue of the whales | D．he spent the weekend with his family |
| A．the shape of the harbour | B．the arms of the bay |
| C．the still water in the channel | D．the long coastline |
| A．she had stayed in the polluted water for too long |
| B．the whirlpools she had made were not big enough |
| C．she had no other whales around to turn to for help |
| D．the waves pushed her baby in the wrong direction |
| A．Saving lives brings people a sense of happiness. |
| B．Fishing provides excitement for children. |
| C．It’s necessary to live in harmony with animals. |
| D．It’s vital to protect the environment. |
4 . You may have been told before not to be afraid of anything. Fear is often associated with weakness. Fear is something to be avoided. But that’s not true, according to Time For Kids magazine. Fear can be good for us. Fear tells us about danger. Without fear, we wouldn’t know to run away from a tiger or step back from a cliff (悬崖).
In a study published in the Justice Quarterly journal in August, researchers from Michigan State University said that a healthy fear of crime keeps teenagers away from potentially dangerous people, places, and activities. Fear makes us jump, scream and sweat. But interestingly, sometimes we make ourselves feel fear on purpose. Think about scary books and movies, and also the long lines for a scary roller coaster ride (过山车).
Margee Kerr, a US sociologist, explained why to Time For Kids. Fear fills our brain with healthy chemicals, especially endorphins and dopamine, and these things create feelings of happiness and excite us, according to Kerr. In addition, when you’re scared, your body produces a chemical which helps people bond with each other.
“Watch people walking out of a haunted house (鬼屋), and you’ll see lots of smiles and high fives (击掌),” Kerr told Time For Kids. That also explains why schools and companies organize challenging trips and physical activities to build up team spirit. People experience and deal with fear in different ways. If you happen to be a “coward” who gets scared easily, don’t worry. There is some evidence that being scared can help a person manage stressful situations.
Kerr said that things like giving a report in front of your class or performing in a school play help build a sort of endurance (忍耐力) to fear that makes us more confident. “You become more comfortable with the physical experience of fear, and so you’re better able to work through it during tense situations,” said Kerr.
So learn to love your fear. It only grows when we forget how helpful our fear is trying to be.
1. What’s the best title for the passage?| A．Ways to build up team spirit. | B．Different ways to deal with fear. |
| C．Love your fear. | D．Fear, a sign of weakness. |
| A．Experiencing fear helps us to build a sort of endurance to fear. |
| B．People who get scared easily have no chances to get changed. |
| C．Fear is harmful to our health. |
| D．Fear is something to be avoided. |
| A．fight against | B．look down upon | C．be more careful with | D．get closer to |
| A．Attend challenging trips or physical activities. |
| B．Take some medicine containing endorphins and dopamine. |
| C．Read scary books or see scary movies. |
| D．Take a scary roller coaster ride. |
5 . The Grey’s Anatomy doctors are navigating the patients that have kept them on our screens for some 400 episodes of the show. But in this episode, for the first time, the
But can seeing the realities of climate change affecting characters on the screen help us relate
Non-profit storytelling consultancy Good Energy believes it can. It is among a small but growing number of organizations
The Good Energy Playbook’s suggestions are appropriately wide-ranging: characters with climate anxiety and those fighting against injustice; utopian (乌托邦的) narratives that explore climate solutions; storylines that quietly
The playbook was created by Good Energy founder Anna Jane Joyner, “It started as a personal
Many research studies looked at the impact introducing climate stories had on viewers, and found it prompted greater concern about climate change. It also
Climate stories, then, seem like a pretty good idea. But these sorts of narratives have been few and far between. Julie Doyle, professor of media at the University of Brighton in the UK, says climate change has
It’s time to break the climate silence, says Doyle. “Mainstream media has tended to follow rather than lead, and it would be great if mainstream media could lead this.” Day-to-day mentions of climate change in media are especially important because, while blockbuster climate films can have a positive impact on awareness and action, the effect is sadly
| A．resistance | B．background | C．response | D．application |
| A．fictional | B．scientific | C．educational | D．theoretical |
| A．logical | B．moral | C．occasional | D．spiritual |
| A．differently | B．effortlessly | C．reluctantly | D．systematically |
| A．depending on | B．referring to | C．identifying with | D．calling for |
| A．restore | B．feature | C．demonstrate | D．sponsor |
| A．reflect | B．maintain | C．eliminate | D．strengthen |
| A．integrate | B．reverse | C．initiate | D．publish |
| A．transition | B．campaign | C．achievement | D．association |
| A．transferred | B．promoted | C．shifted | D．underestimated |
| A．For example | B．As a result | C．On the contrary | D．In addition |
| A．narrative | B．character | C．plot | D．memory |
| A．explored | B．competed | C．struggled | D．appealed |
| A．narrow-minded | B．ever-changing | C．short-lived | D．far-sighted |
| A．resumes | B．fades | C．deepens | D．increases |
6 . Humans have many unique behaviors among animals. For example, we have a formal language that permits communication about things that exist in the past, present, and future. Yet we share at least one emotion with many other species fear.
To really understand our fears we have to go further to study how animals long before humans came into being assessed (评估) and managed predation (捕食) risk in the wild. All animals, past and present, must assess life-threatening predation risks (风险) and make decisions to avoid or otherwise manage those risks. It is a proper balance: being too fearful is costly if fear means that you miss out on getting food, mates, or other important resources. However, being too brazen could end very poorly indeed. It is the context that influences all decisions. If they’re hungry, it’s wise to take more risks or they will go hungry. And, if they’re powerful and can steal food from others at will, perhaps it’s OK to be a bit more careful. Successful individuals are those that make right assessment, and because of this, leave more descendants.
Natural expressions of fear influence the structure of ecological communities, and the removal of predators changes entire ecosystems. To manage predation risks, animals modify(调整) their activity patterns, habitat selection, and their diet. Fear of predators can also reduce an individual’s reproductive(繁殖)success. All of these fear-driven modifications can have a great influence on both the environment and the diversity of many species. Fear, as it turns out, is an essential part of healthy ecosystems and helps keep biodiversity.
Fear is a natural emotion, and that it’s impossible to completely avoid it. It is comforting to know that fear comes from a long line of ancestors, both human and nonhuman. It is a compass(指南针)that, when used I properly, guides us away from danger and toward opportunity.
1. What do we know about animals’ risk assessment and management according to paragraph 2?| A．Animals are too fearful to make right assessments. |
| B．Animals will fail to get food when they are fearful. |
| C．Animals have to make proper decisions based on different situations. |
| D．Animals which arc more fearful are more likely to make right assessment. |
| A．brave | B．afraid | C．hungry | D．strong |
| A．The ways animals manage fear |
| B．The influence fear has on ecosystem |
| C．The approaches to keeping a healthy ecosystem |
| D．The problems fear brings about to the ecosystem |
| A．Fear from Our Deep Past | B．Survival of the bravest |
| C．Emotion from human and nonhuman. | D．Path to risk management |
 | Hello, I’m Anna Green. I’m a student at Star Middle School. I’m in Class Two. My parents are teachers. I have a friend in my class. His name is Jackson Smith. He likes black. Look! He has a black cup and three black pens. |
 | My name is Alice. Jones is my last name. I’m at Ziyang Middle School. Yellow is my favorite color. I have a nice family. Jack and Tom are my parents. Scot is my grandfather. And I have a sister Grace. We like the same color. |
 | Hi! I’m Dave Brown. I’m an English boy. Now I live with my uncle and aunt in China. They have a daughter May and a son Peter. Peter likes drawing very much. Here is picture. Look! A black dog is in it. |
| A．Class One. | B．Class Two. | C．Class Three. | D．Class Four. |
| A．Three. | B．Four. | C．Five. | D．Six. |
| A．A brown cat. | B．A black cat. | C．A brown dog. | D．A black dog. |
8 . In general, people talk about two groups of colors: warm colors and cool colors. Researchers in psychology think that there are also two groups of people: people who prefer warm colors and people who prefer cool colors.
The warm colors are red, orange and yellow. Where there are warm colors and a lot of light, people usually want to be active. People think that red, for example, is exciting. Sociable people, who like to be with others, like red. The cool colors are green, blue and violet. These colors, unlike warm colors, are relaxing. Where there are cool colors, people are usually quiet. People who like to spend time alone often prefer blue.
Red may be exciting, but one researcher says that time seems to pass more slowly in a room with warm colors than in a room with cool colors. He suggests that a warm color, such as red or orange is a good color for a living room or restaurant. People who are relaxing or eating do not want time to pass quickly. Cool colors are better for offices or factories if the people who are working there want time to pass quickly. Researchers do not know why people think some colors are warm and other colors are cool.
However, almost everyone agrees that red, orange, and yellow are warm and that green, blue, and violet are cool. Perhaps warm colors remind people of warm days and the cool colors remind them of cool days. Because in the north the sun is higher during summer, the hot summer sunlight appears yellow.
1. Which of the following colors belong to cool colors?| A．Blue, violet and green. | B．Yellow, green and violet. |
| C．Black, blue and red . | D．Brown, white and orange. |
| A．Sociable people like warm colors. |
| B．Cool colors can make people relaxed. |
| C．People who like to be spend time alone don’t like blue. |
| D．Where there are warm colors, people want to be active. |
| A．Red or orange for offices. | B．Orange for dining-rooms. |
| C．Blue for bedrooms. | D．Red for factories. |
| A．Two Groups of Colors. | B．Sociable People Like Warm Colors. |
| C．Places and Colors . | D．Colors and People. |
9 . Farmers and hunters are calling for an extension (延期) to the Victorian duck hunting season, saying certain species are doing great harm to crops and waterways and need to be controlled. This season runs from 8:00 am today and will end in 20 days, down from the usual 12 weeks, with a bag limit of five listed game ducks per day.
Wayne Shields grows leafy greens on the Mornington Peninsula and he said the decision to reduce the duck hunting season would take its toll on farmers. “The wood ducks are the ones causing all of the damage; the black ducks are no problem around here. The wood ducks come in at night and they just clean me out completely and they’ve done it a number of times over a number of years,” he said.
Mr. Shields and his wife, Natasha, run Peninsula Fresh Organics and he said there was nothing he could do to stop the invasion (入侵). “I nearly went broke a few years ago. Back then I was planting 10,000 lettuce (生菜) a week and they would quite happily eat 10,000 lettuce a week.” Due to the damage caused by the wood ducks, Mr. Shields said there should be a year-round open season on the wood ducks and farmers should be allowed to shoot birds.
Professor Richard Kingsford, Director of the Centre for Ecosystem Science at UNSW, said although the wood ducks ate crops, extending the duck season may not achieve what farmers wanted. He is calling on the government to invest more in research to address the threat certain species of waterbirds caused for some farmers, so other nonlethal (非致命的) ways to destroy the birds can be found.
1. How is this year’s duck hunting season different?| A．It is put off. | B．It is cut short. |
| C．It is about five species. | D．It takes place mainly on farms. |
| A．Make way for. | B．Keep an eye on. |
| C．Cause damage to. | D．Take control of. |
| A．The invasion of the black ducks. |
| B．The difficulty of keeping business. |
| C．The negative influence of the hunting season. |
| D．The daytime trouble caused by the wood ducks. |
| A．Scientifically managing them. |
| B．Encouraging hunters to catch them. |
| C．Extending the duck hunting season. |
| D．Using deadly ways to drive them away. |
10 . Pick-your-own farms are set for a post-lockdown boom this summer, as people look to support local businesses and spend more time outdoors. Here are four of our favorites.
Parkside Farm, Enfield
Juicy blackberries, and strawberries are the stars of the show at this pick-your-own place on the northern edge of London. One key selling point is the “table-top” strawberry-growing system, which means plants are grown in places at waist height — no more bending down in the dirt to pick your berries. Parkside is also one of the few farms accessible without a car, as long as you don’t mind a walk — it’s 25 minutes from Gordon Hill station.
Craigie’s Farm, Scotland
Just outside Edinburgh, Craigie’s Farm is bursting with produce including cherries, peas, broad beans and, perhaps surprisingly, sunflowers. The onsite shop, deli and cafe have a lot more to offer besides fruits and vegetables — you can pick up homemade jams, meat, cheese and an apple press for making your own juice. There are activities for children too, including a Nature Detective Trail involving encounters with sheep and goats.
Hewitts Farm, Kent
This family-run farm in Kent offers everything from spinach to apples and blackberries during its pick-your-own season, which runs from June to October (for Halloween pumpkins). There’s also a shop selling farm-grown and local produce, as well as free tractor rides for youngsters on Sundays during the summer.
Bellis Brothers Farm, Wrexham
This farm in North Wales started growing strawberries back in 1860 and has operated as a pick-your-own since 1967. More fruits have been added since then, but it’s still mostly known for its strawberries. Pickers can download Bellis family strawberry recipes from the farm’s website, including those for jams and a baked strawberry cheesecake.
1. Which of the following is TRUE about Parkside Farm?| A．You can enjoy sunflowers in the sunshine. |
| B．You can pick berries without bending down. |
| C．You need not worry about getting dirty on the farm. |
| D．You must drive there due to its long distance from the station. |
| A．Parkside Farm. | B．Craigie’s Farm. |
| C．Hewitts Farm. | D．Bellis Brothers Farm. |
| A．Business. | B．Books. | C．Sports. | D．Travel. |
