No one enjoys hearing the sound of someone else chewing their food. Most of the time, though, it's not that big a deal but a minor annoyance.

    But for a small group of people with misophonia (恐音症), the sound can be painful, causing extreme anger and deep discomfort. The most ordinary sounds of chewing and breathing can drive them crazy. Past attempts to explain the causes of misophonia have suggested everything from compulsive disorder to an easily-annoyed personality—but according to a study published yesterday in the journal CurrentBiology, the true criminal is the structure of the brain.

    For the study, a team of researchers led by Newcastle University neuroscientist Sukhbinder Kumar recruited (招募) 42 volunteers, of whom around half had extreme misophonia and the other half served as the control group, and played them several different noises: some ordinary; some harsh, like the sound of a person screaming; and some that were ordinary for the control group but known to be annoying for misophonics, people with misophonia, like the sound of breathing. As the participants listened, the researchers monitored them for signs of anxiety, both physical symptoms and behavioral expressions, and observed their brain activity using FMRI scans.

    The only significant difference in reaction between the two groups happened, during the misophonia-specific sounds, when those with the condition showed physical changes that suggested they were entering fight-or-flight mode.

    Misophonics had increased activity in the AIC, an area known to play a central role in the system that determines which things we should pay attention to. When the trigger sounds were played, there was not only more activity in this region but also abnormally high levels of connection to other regions.

    Misophonia, in other words, may be a result of misplaced attention the brain of a misophonic focuses on things that other people normally tune out (不予理会). On a related note, on behalf of misophonics and manners-minded moms everywhere: Please, chew with your mouth closed.

    Forests are always losers at the Olympics, and that's unlikely to change anytime soon.

    For the winter games in PyeongChang, South Korea, virgin forest was destroyed on Mount Gariwang to accommodate ski runs. For the 2022 Winter Olympics in Beijing, a ski run is set to wipe out part of the Songshan National Nature Reserve. And let's not forget the 240 acres of Atlantic Forest that were leveled for the 2016 games in Rio de Janeiro to make way for a golf course.

    For the upcoming Tokyo games, environmental and human rights advocates have been raising alarms about the use of tropical (热带的) wood to build the New National stadium. Activists have fought against such environmental destruction. The damage is often permanent, threatens endangered plants and animals and in some cases, causes conflicts with native people. But frequently the country's organizing committee, and the International Olympic Committee (IOC) have found ways to make it reasonable — despite a paragraph in the Olympic Charter (宪章) that states that the IOC's role is to "encourage and support a responsible concern for environmental issues".

    "As it stands now, the IOC has little authority over a city's local organizing committee, which finally plans the event, " Chappelet, professor of public management at the University of Lausanne, told Earther. "Even if the IOC is dissatisfied with the way host cities have prepared for the games, they have no built-in systems to watch them so that they strictly follow the Olympic Charter." The only thing they can do if they're not happy is to withdraw (= take back) the right to organize the game. "But the IOC could include more enforcement (执行) systems into the contract they make with the host city," he added. That contract must be signed and obeyed by everyone and those who break it must be fined.

    Boykoff, the author of several books on the Olympics, suggested a similar solution. "The IOC could insist that host cities take their ecological (生态的) promises into account first, but instead they look the other way, time and time again," he said.

    Raccoons are smaller relatives of bears. They are native to North America, but they can also be found in Asia and Europe. Raccoons live in wooded areas close to water, but they can be often found near urban areas. There are about 7 different species of raccoons. Pygmy raccoon is the only endangered species.

    Raccoons usually reach 40 to 70cm in length and weigh between 5­26kg. Raccoons that live in colder climates are larger and heavier. They have grayish fur, black masks around eyes and long tails covered with black and brown bands. Because of their tails, they are also called "ringtail".

    Raccoons are omnivores. They like to eat insects, eggs, small mammals, fruit, berries, garbage, and so on. Raccoon's hands look like human's. They each have five fingers and are used to collect food, open shells, door or trash cans. Raccoons often place food in water before they start to eat it. They have highly sensitive sense of touch and water increases their sensitivity even more. By touching the food, they get better insight about things they will eat.

    They are easily adaptable (适应的) to various environments. They can live in hollow (中空的) trees equally happily like they can in useless cars. Raccoons live on their own and hunt at night. They don't hibernate (冬眠), but they spend the coldest days of winters in their holes.

    Mating (交配) season takes place from January to mid March. Two months later, female will give birth to 3­4 babies. Their tails don't have bands, and the mask around eyes is still missing. Mother is very protective and she will teach them how to survive and what to eat as they become­ready to leave the hole. Raccoons usually can live only 1.8 to 3.1 years in the wild, but they can live up to 20 years at a zoo.

    Raccoons can pass rabies, a kind of disease, to home­raised animals and people, which is very dangerous. What's more, their waste often has roundworms.

    Are you happy with your appearance？{#blank#}1{#/blank#} "Almost all the girls with single﹣fold eyelids in our class have had double﹣eyelid operations," Zeng, a Senior 2 student from Chengdu, told Xinhua. Zeng had the same surgery done this summer. {#blank#}2{#/blank#}

    From popular photo﹣editing apps to plastic surgery, it seems that large eyes, pale skin and a skinny body are the only standard for beauty these days. But can following this standard really make us feel good about ourselves？

   {#blank#}3{#/blank#} According to Huxiu News, over six in ten girls choose not to take part in certain daily activities, such as attending school, because they feel bad about their looks. As much as 31 percent of teenagers avoid speaking up in class because they worry that others will notice their looks.

    Many teenagers are upset about their appearance because they believe in unrealistic standards of beauty, experts say.{#blank#}4{#/blank#} Seeing all these things can make anyone believe that they're too dark, too fat, too short, or too tall.

However, trying to live up to strict standards can make us feel anxious. What troubles us is not just our "imperfect" looks, but the fact that we criticize ourselves too much.

    {#blank#}5{#/blank#} Plus﹣size models are being featured in some fashion shows. All of us should be just as confident as they are.

A．Beauty comes in all shapes and sizes．

B．Body image anxiety is common among teenagers．

C．Guys care just as much as girls do about their body image．

D．Some teenagers might feel negatively about their appearance．

E．She and many of her classmates believe bigger eyes look more beautiful．

F．It's not uncommon for teenagers to feel confident about their appearance．

G．Perfect faces and bodies are everywhere in advertising TV shows and social media．

You have an important test tomorrow. {#blank#}1{#/blank#}But you're still worried. You need to relax. What can help? Maybe a quiet walk? A cup of tea? A little yoga? Psychologists have another idea: Sit down and write! Write about your stress.

Why does writing help? There are two reasons. First, your memory works like the memory in a computer. You need to delete (删除) some documents to make room for other documents.{#blank#}2{#/blank#} So they need a lot of room in their brains for memory. They need to delete their "documents" of stress. Writing helps them by moving the stress out of the brain and putting it on paper. The second reason is writing helps you to focus. People write about their stress. As a result, they feel less worried. Then they can focus better on other things.

Psychologists are studying the connection between stress and writing. They do experiments with students. They put students into two groups.{#blank#}3{#/blank#}The other group sits quietly. Then all the students take a test. What are the results? The students in the writing group do better than the other group of students.

{#blank#}4{#/blank#}Some people don't sleep well. Writing at night will help them sleep better. Some athletes get stressed about winning or losing. They can't focus on playing well. Writing before a game can help them play better. People in job interviews get stressed, too. Writing before an interview can help them relax.

{#blank#}5{#/blank#}Try this experiment: Go to class ten minutes early, and write about your stress. You can write in English or your own language. Then take the test. Maybe the psychologists are right. Maybe writing will help you, too.

A. Do you get stressed about tests?

B. Writing can help other people, too.

C. Writing can help you perform well in an exam.

D. Students need to remember a lot of information.

E. One group writes about their stress for ten minutes.

F. Do you feel relaxed after writing about your stress?

G. You study very hard and you're doing well in the class.

Insect numbers have decreased by half in some parts of the world due to climate change and intensive agriculture,a study has found.The combined pressures of global heating and farming are driving a "substantial decline" of insects across the globe,according to the UK researchers.

Lead researcher,Dr Charlie Outhwaite of UCL,said losing insect populations could be harmful not only to the natural environment,but to human health and food security,particularly with losses of pollinators(传粉昆虫)."Our findings highlight the urgency of actions to preserve natural habitats,slow the expansion of high-intensity agriculture,and cut emissions to reduce climate change," she added.

In the latest study,the researchers pulled together data on the range and number of nearly 20,000 insect species,including bees,ants,butterflies,grasshoppers and dragonflies,at about 6,000 different locations.In areas with high-intensity agriculture and substantial warming,insect numbers have decreased by 49%,compared with relatively untouched places that have so far avoided the most severe impacts of climate change,according to the research published in Nature.

But the researchers said there was some cause for hope.Setting aside areas of land for nature creates a refuge(庇护所) for insects,which need shade to survive in hot weather."Careful management of agricultural areas,such as preserving natural habitats near farmland,may help to ensure that vital insects can still survive," said Dr Tim Newbold,also of UCL.

Study researcher,Peter McCann,added,"We need to acknowledge how important insects are for the environment as a whole,and for human health and well being,in order to address the threats we pose to them before many species are lost forever."