Sharon，Aged 22

    The most important thing to keep in mind when going into high school is to be yourself．Besides, I don't know what your middle school was like, but high school teachers will not care about things such as how much homework you already have in one night．It's best to just learn to deal with things and manage your time wisely so you can achieve everything you need to.

Frank, Aged 21

    I think almost every kid feels both nervous and excited before their first day．You will probably love it．I know I did．You should join some sports or activities that will make your high school experience more enjoyable．Good luck!

Eddie，Aged 20

    When I started high school I was really nervous too，especially since I had been homeschooled all through middle school and didn't really know anyone．I suppose the best advice would be to just relax．The first couple of days can be a little bit hard，but things will become easier before you know it.

David，Aged 19

    I'm not going to lie．The first day is kind of frightening(令人恐惧的)．But you'll get used to it．Don't be afraid of anyone；upperclassmen will pick on(刁难) you more if you let them know you're afraid．Just take it easy．Making some friends and staying with them will greatly help you get used to high school quickly．After the first week it's really not bad at all．Don't worry.

    Our risk of cancer rises dramatically as we age. So it makes sense that the elderly should be routinely screened for new tumors — or doesn't it?

    While such vigilant(警觉的) tracking of cancer is a good thing in general, researchers are increasingly questioning whether all of this testing is necessary for the elderly. With the percentage of people over age 65 expected to nearly double by 2050, it's important to weigh the health benefits of screening against the risks and costs of routine testing.

    In many cases, screening can lead to additional biopsies(活检) and surgeries to remove cancer, which can cause side effects, while the cancers themselves may be slow-growing and may not pose serious health problems in patients' remaining years. But the message that everyone must screen for cancer has become so ingrained(根深蒂固的) that when health care experts recommended that women under 50 and over 74 stop screening for breast cancer, it caused a riotous reaction among doctors, patients and advocacy groups.

    It's hard to uproot deeply held beliefs about cancer screening with scientific data. Certainly, there are people over age 75 who have had cancers detected by routine screening, and gained several extra years of life because of treatment. And clearly, people over age 75 who have other risk factors for cancer, such as a family history or prior personal experience with the disease, should continue to get screened regularly. But for the remainder, the risk of cancer, while increased at the end of life, must be balanced with other factors like remaining life expectancy(预期寿命).

    A recent study suggests that doctors start to make more objective decisions about who will truly benefit from screening—especially considering the explosion of the elderly that will soon swell our population.

    It's not an easy calculation to make, but one that make sense for the whole patient. Dr. Otis Brawley said, “Many doctors are ordering these tests purely to cover themselves. We need to think about the rational(合理的) use of health care and stop talking about the rationing of health care.”

    That means making some difficult decisions with elderly patients, and going against the misguided belief that when it comes to health care, more is always better.

    The future of Australia's solar industry is looking bright after a record 3.5m panels(嵌板)were installed on rooftops last year, giving the equal output of a medium-sized coal-fired power station. The record 1,057 MW of capacity (产能) in small scale systems installed across the country broke the previous record set in 2012, figures from the Clean Energy Regulator showed on Tuesday.

    Australia's solar power prosperity could almost double capacity in a year, The data also revealed that the average system size has also doubled since then from three to six kilowatts as average prices continued to fall. A fully installed 5KW system costs an average of $5,930 in Australia, according to the energy broker Solar choice.net.au. Its records show that the price has roughly halved in many capital cities since 2012.

    The regulator's executive general manager, Mark Williamson, said there was increasing interest in renewals as a way to take control of electricity bills. But more importantly, he said it was also good news for reducing carbon emissions.

    “We are seeing a wide cross section of Australians—households, community centers, schools, and small businesses—receiving rewards under the small scale renewable energy scheme,” Williamson said, “Our data shows consumers are embracing renewable energy to take control of their electricity bills. ”

    In 2017, there was a 41% increase in installing renewable energy capacity across all states and territories compared to 2016. Queensland led the way with installed capacity at 295MW, with the Australian Capital Territory taking top place for the biggest annual increase by 57 %. “I he data collected by the Clean Energy Regulator in 2017 reflects the industry is going from strength to strength, It looks like 2018 will be another big year for the solar industry.”

    The total of installed capacity for last year is expected to rise to 1,070MW when all the data is collected. A large coal-fired power station such as Loyd Yang A in Victoria's Latrobe Valley has a capacity of 2, 200MW.

    Every country may have to consider what, if anything, to do about "global warming". We should understand that the oft-repeated claim that nearly all scientists demand that something dramatic be done to stop global warming is not true.

    Perhaps the most inconvenient fact is the lack of global warming for well over 10 years now. This is known to the warming establishment, as one can see from the 2009 "Climategate" email of climate scientist Kevin Trenberth: "The fact is that we can't account for the lack of warming at the moment and it is an irony that we can't." But the warming is only missing if one believes computer models where so-called feedback involving water vapor and clouds greatly amplifies the small effect of CO2. The fact is that CO2 is not a pollutant and it is a key component of the biosphere ( 生物圈)'s life cycle. Plants get better growth with more of it and part of the increase of agricultural yields in the past century certainly came from additional CO₂ in the atmosphere.

    Although the number of the scientists who are publicly opposed to the claim is growing, many young scientists secretly say that while they also have serious doubts about the global-warming message, they are afraid to speak up for fear of not being promoted or worse.

    Why is there so much passion about global warming? There are several reasons, but a good place to start is the old question "Cui bono?", or the modern update, "Follow the money". Alarmism (危言耸听) over climate is of great benefit to many, providing government funding for academic research, and thus those people who benefit from this fiercely defended their dogma (信条) and the privileges it brought them.

    Every country should support rational ( 合理 的) measures to protect and improve our environment, but it makes no sense at all to back expensive programs that turn away resources from real needs and are based on alarming but shaky claims of "incontrovertible" evidence.

    Beyoncé Knowles can do something that many humans struggle with: sing and dance at the same time. But, it turns out this great ability is not unique to humans. The superb lyrebird, already known to be a gifted singer, can perform coordinated(协调的)song­and­dance routines(一套舞蹈动作)that put most humans to shame.

    The superb lyrebird is one of only two lyrebird species living in Australia, the other named Albert's lyrebird. Male lyrebirds have tails in the shape of an ancient musical instrument when spread out. Like most animals with beautiful body parts, the males use their tails to attract females. Each one sets up a small mound(小丘)on the forest floor, where he walks around proudly and sings. He also shows his tail by holding it over his head.

    Lyrebirds are gifted mimics(模仿者), so their songs combine their own calls, the songs of other species, and sounds they have heard in the forest. That would be enough showing off for other animals, but male superb lyrebirds also dance.

    Anastasia Dalziell of the Australian National University in Canberra filmed 12 lyrebirds in the wild. She found that males only danced during four song types, and that each song type was accompanied by a specific move. “Lyrebirds match different dance styles to different types of songs, ”she says. For example, when the male sang a series of rapid notes he also stepped to the side and held his tail wide. Another song type was accompanied by jumping and moving up and down, with the tail held narrow.

    “Our results suggest that the coordination between song and dance—like movements we see in humans can occur in other animals,” says Dalziell. Female lyrebirds might prefer males that are better at coordinating song and dance, although there is no evidence of that yet.

    Food festivals are a common occurrence in the UK and take place in all sorts of places and at all sorts of times. Whatever your taste, there's a food festival to match -no matter how specialized.

    Meatopia

    This three-day, London-based festival takes place at the end of August and is a meat lover's paradise. In addition to a range of meat products, from burgers to steaks, attendees can listen to live music, watch butchery shows, and attend informal meat-based workshops.

    Vegfest

    If you prefer a festival that will help you meet your five a day, then Vegfest fest is for you. This vegan-friendly event takes place several times a year. Here you can enjoy a wide selection of freshly prepared vegetables, learn cooking tips and hear talks on nutrition to help you make the most of your plant-based search.

    The Marmalade Festival

    Held in Cumbria, this festival has been running for 13 years. It includes a competition to find the best homemade marmalade. There are thousands of entries from over 30 different countries across the globe.

    The Ginger (姜) and spice Festival

    The Ginger and spice Festival, held in Market Drayton, celebrates its town's historic connection to Robert Clive, who returned from India with ginger. Because of this, they specialize in baking gingerbread, but also sell a range of spices from mild to hot.

    The National Honey show

    It started in 1921 and is the largest event of its kind. This three-day event attracts over 2000 participants to their traditional competition and offers lectures and workshops on beekeeping and, of course, that syrupy golden honey.

    While people's tastes are different from each other, the UK has something to offer most people. From large-scale festivities, to the smaller gatherings, one thing is certain: people are passionate about their food. And while some of the products on offer might be strange to someone, when food is given that much attention, it's unlikely to leave a bad taste in anyone's mouth.