Do you love outdoor challenges? And there are a bunch of really awesome hiking challenges out there now that will not only inspire you to get outside more and push yourself physically，but also provide you access to an awesome community of hikers and often-times hiking groups focusing on the same challenges.
1 THE 52 HIKE CHALLENGE
The goal of the 52 Hike Challenge is to get you outside moving every week for an entire year. The difficulty and length is entirely up to you，but the point is to get out and to get moving! Register online now and the resources on their website allow you to track your journey as you complete each weekly hike and earn completion badges as you go.
2 WE HIKE TO HEAL
We Hike to Heal is a month-long women's empowerment and wellness campaign that organizes group hikes all over the world on the last Saturday of March. The organization's mission is to encourage women all over the world to tap into the healing and empowering influences within themselves and the Great Outdoors. You can join the movement for free in the link above and find free group hikes that will be happening all over the world.
3 CURE-SEARCH ULTIMATE HIKE
This event is put on by CureSearch on February 4th every year, a non-profit organization dedicated to finding a cure and a way to raise money for children's cancer. To join this event that supports an incredible cause, you attend an informational session, register and get your own online fund-raising page and raise money to support your trek for children's cancer research.
4 THE 365 MILE CHALLENGE
This challenge is great because it is so simple. The goal is to get outside every day and walk a mile. This challenge focuses on small efforts that, over time, have big results and focuses on, creating healthy habits to benefit your mind, body, and soul. To join all you have to do is register, join the Face book group, and start moving.
Carl Wilhelm Scheele ranks as one of the greatest scientists of all time, but he paid a big price for this honor.
Born in 1742 in present-day Germany, Scheele learned about chemicals from his parents starting at a young age. When he was 14, he was sent away to Gothenburg (哥德堡) to become the apprentice (学徒) of a family friend. There he spent eight years studying chemistry and conducting experiments late into the night. Next, Scheele moved around the Holy Roman Empire, working for different chemists and becoming more learned in his trade. In 1767, he moved to Stockholm, where he discovered tartaric acid (酒石酸).
After three years in Stockholm, he became the director of the Locke Laboratory. It was there, while he was analyzing a strange reaction, that Scheele became the first person to identify oxygen.
He called the element "fire air" because he believed, based on the theories of his time, that a substance that made up fire was released from items when they burned. Scheele believed oxygen to be this substance, not understanding that oxygen is merely an element that facilitates (促进) the chemical reaction that is fire.
As historic as this discovery was, Scheele seldom got credit for it, largely because English scientist Joseph Priestley published findings on oxygen before Scheele, even though it is now generally accepted that Scheele made the actual discovery first.
Through his work, he thus exposed himself to many harmful materials. These chemicals had a deadly effect on Scheele, and he eventually died of kidney failure in 1786.
Sadly, in spite of his many achievements and the fact that he gave his life to chemistry, Carl Wilhelm Scheele is often forgotten in the history of science. Though he discovered many elements before other better-known scientists did, his unwillingness to both attend meetings of the Royal Swedish Academy of Sciences and to publish his work allowed other scientists to take credit for discoveries that he had made.
Girls should take part in competitive sport to build confidence, and the leaders of a group of girls' schools will argue this week. Helen Fraser, director of the Girls' Day School Trust (GDST), will tell the group that sport can help girls deal with failure.
"All girls, not just the sporty ones, should take physical exercise," Ms. Fraser says. Research that girls are far less active than boys is worrying, she argues. Ms. Fraser will tell the group that she supports "sport for all". "That's why I love it when our schools have A, B, C and D teams and beyond," she says.
The GDST draws on research from the Women's Sport and Fitness Foundation which suggests only a quarter of girls in England meet basic levels of activity each week. One in five girls do no activity at all, twice the proportion of boys, the research suggests.
Ms. Fraser says other research suggests that more than 80% of women business leaders played sports while growing up. She uses the examples of former US Secretary of State Condoleezza Rice, who once was a skater and tennis player, and the head of the International Monetary Fund, Christine Lagarde, who was in the French national swimming team. Ms. Fraser says Olympic medallists like Jessica Ennis and Katherine Grainger are excellent role models for young women but says women's sport needs more money and more news reports.
Valerie Dunsford, head of Sheffield High School for Girls, part of GDST, said it was important to offer a large number of sports to attract different types of girls. "Not everyone wants to be out playing the hockey." said Ms. Dunsford.
Do you continue to be healthy in social isolation? NASA is looking for people to spend 8 months locked in a Russian lab for a new experiment.
When humans go to the moon and travel to Mars, they will need to be prepared for long-term space travel and even longer stays on these far-off destinations. Currently, NASA's Artemis program aims to land humans on the moon for the first time since NASA's Apollo 17 mission landed in 1972.
While the moon is the main goal of NASA's Artemis program, the agency's larger goal is to send people to Mars. But long-term space travel and habitation won't be easy. Such missions will present both physical and mental challenges as astronauts work to not only survive, but perform important scientific research in uniquely difficult environments.
In the upcoming NASA-Russia experiment, a group of people will live in a closed facility at Russia's Institute for Biomedical Problems, which is in Moscow. This habitat facility was used in 2011 for notable series of Russian mock (模拟的) Mars missions known as Mars 500. During these missions, groups of people spent 520 and 105 days on two separate missions in the facility.
The facility, according to the statement, will have "environmental factors similar to those astronauts are expected to experience on future missions to Mars". The group of people will spend 8 months living together in isolation and working on scientific research.
By living and working in this Mars-like environment, participants in this study will help NASA researchers better understand the psychological and physiological (心理和生理的) effects of isolation. These missions help researchers not only perform relevant science experiments but also see how people might get on under strange conditions for long periods of time.
So, if you're finding that living in social isolation works for you, you might be particularly well-suited for living in a Mars-like environment and this could be for you. But first, you have to qualify. NASA is looking for "highly motivated" Americans between the ages of 30-55, who must speak both Russian and English fluently and have a Master of Science, Doctor of Philosophy, Doctor of Medicine, or military officer training. Applicants with other related experience may also be considered. Those who are chosen to be a part of this group will be paid for their work.
D.
Do you find yourself taking a nap (打盹) at your desk, even after what you thought was a good night's rest? Then you probably have the same question as so many others: How much do I need to sleep? . This is put forward by Dr. Raj Dasgupta, an assistant professor at the Keck School of Medicine of the University of Southern California. However, here are a few ways to improve your sleep.
Stick to a bedtime routine. . You can even keep a journal to note down these sleep times and how often you wake up at night, said Dasgupta. By doing this you can have an idea of what works for you. Besides, you should also make sure your room is dark, cool and comfortable when you go to sleep.
Turn off the electronic devices. Do this as early as possible before bed. . "Particularly if you are aiming to fall asleep earlier, it's important to expose yourself to bright natural light as early as possible in the day, and to limit exposure to light in the hours before bedtime," she said. "Electronic devices mimic (模仿) many of the wavelengths in sunlight that cue your body to stay awake."
. Dasgupta's recent study showed that focusing attention training could also help children sleep over an hour more per night. They can take breathing exercises and yoga, for example.
Set good food and exercise habits. Finally, eating healthily and keeping a daily fitness routine can support better sleep at night. "," he said. "Exercise relieves stress. It also helps build up your drive to sleep at night."
A. Try focusing attention techniques
B. The answer is not so straightforward
C. Seek to get training of some relaxing exercises
D. You should be consistent with exercise during the day
E. Light exposure can affect your body's sleep-wake cycle
F. There will be a new electronic device on the market soon
G. It is great to go to bed and wake up at the same time every day
I teach biology at UNLV three times per week. Last Monday, at the beginning of class, I 1 asked my students how their weekend had been. One young man said that his weekend had not been so good. He had his wisdom teeth2. Then he went on to ask me why I3 to be so cheerful.
His question 4 me of something I'd read somewhere before: "Every morning when you get up, you have a choice about how you want to 5 life that day," I said. "I choose to be cheerful."
"Let me give you an 6," I continued,7 all sixty students in the class. "In addition to teaching here at UNLV, I also teach out at the community college in Henderson, 17 miles down the freeway from where I live. One day a few weeks ago I drove to Henderson. I 8 the highway and turned onto College Drive. I only had to drive another quarter mile down the road to the college. But just then my car 9. I tried to start it again, but the engine wouldn't 10. So I put my flashers on, took my books, and11 down the road to the college.
"As soon as I got there, I called AAA (汽车协会) and 12for a tow truck to meet me at my car after class. The secretary there asked me what had happened. "This is my 13 day," I replied, smiling.
"Your car breaks down and today is your lucky day?" She was puzzled. "What do you mean?" "I live 17 miles from here", I replied. "My car could have broken down anywhere along the freeway. It didn't.14, it broke down in the 15 place: off the freeway, within walking distance of here. I'm still able to teach my class, and I've been able to arrange for the tow truck to meet me after class. If my car was 16 to break down today, it couldn't have been arranged in a more convenient fashion." The secretary's eyes opened wide, and then she smiled. I smiled back and headed for class. So I ended my story to the students in my economics class.
I17the 60 faces in the lecture hall. Despite the early hour, no one seemed to be asleep.
18, my story had touched them. Or maybe it wasn't the story at all.19, it had all started with a student's 20 that I was cheerful. A wise man once said: "Who you are speaks louder to me than anything you can say". I suppose it must be so.
A(major) of young Chinese are taking scientists such as Yuan Longping, known as "the father of hybrid rice", as their idols, with many of them ( want) to pass on their spirit, a recent survey(调查) found.
The nationwide survey, conducted in Beijing by China Youth Daily, interviewed 1,630 people aged 14 to 35 and found that 81% said they(encourage) by the stories of the top scientists and wanted to become scientists ( they).
Yuan diedthe age of 91 in Changsha, Hunan province, on May 22.
The survey also found that the "spirit of scientists" included love for the country and a willingness(serve) the people, the courage and efforts to reach (science) breakthroughs.
Huang Chong，the head of the social investigation(调查) center at China Youth Daily led the survey, said the findings were unexpected. Huang had not expected to find that in the Internet age,online celebrities attract much attention and quickly gain fame and benefits, so many young people would want to become scientists—a somewhat low- key occupation that requires long hours of hard work, for which rewards come (slow).
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
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注意：1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者（从第11处起）不计分。
Mary, my favorite teacher, is a pretty lady. I like him best because she is not only friendly but also professional. She has good teaching methods. Her class is full of funs so we don't feel boring. To improve our grades, she usually gives us some advice about what to learn English well. What's more, she spends much time help every student. Sometimes, she nearly has no time to have lunch. When I ask her questions, she always tries to make me to understand with much patience and care. I'm luckily enough to have such good teacher in my life. Mary have a great influence on me. Many thanks with her help.
注意：1）写作词数应为100词左右；
2）请按如下格式在答题卡的相应位置作答。
Dear fellow students,
……
The Students' Union
