Shopping is a big part of the holiday season,when families and friends gather together and exchange gifts.While the popularity of shopping online has grown,such practices are not always eco-friendly or timely,as gifts bought online must be packaged and shipped,wasting valuable resources and time.

    The benefits of shopping locally go beyond convenience and reduce your carbon footprint.The following are a few ways that shopping locally this holiday season can directly benefit your community and the people who call it home.

    When men and women shop locally,they are putting money back into their local communities.Local businesses may be owned by your neighbors,and it can be comforting to know that your holiday shopping dollars are going to support a neighbor instead of a large company.Local businesses also employ your neighbors,so shopping locally can strengthen the local economy by creating jobs.

    Local businesses go a long way toward creating a neighborhood identity,and that identity can create a stronger sense of community among you and your neighbors.In addition,a unique community    identity can make your town more attractive to outsiders,and can also attract more people to local businesses in your neighborhood.

    The gifts you buy when shopping locally can also benefit your community.Gifts purchased from small local businesses tend to be more unique than items bought from national chains,as smaller retailers tend to sell more home-made items than their national competitors.Recipients of such items may find such gifts more thoughtful than mass produced items bought from national chains.

    The accessibility of customer service is another benefit of shopping locally.When you buy something from national chains,especially during the holiday season when such businesses may have to deal with orders,making contact with customer service departments can be a test of patience.A long wait on the phone or online can make the process of contacting customer service departments extremely frustrating.But such frustration is rare when shopping from local businesses,as consumers can simply buy their products in the store.In addition,shopping locally makes it more convenient for friends and family members who also live in your community to return their gifts.

    The clock struck eleven at night. The whole house was quiet. Everyone was in bed except me. Under the strong light, I looked sadly before me at a huge pile of that troublesome stuff they call “books”.

    I was going to have my examination the next day. "When can I go to bed?" I asked myself. I didn't answer, in fact I dared not.

    The clock struck twelve. "Oh, dear!" I cried, "ten more books to read before I can go to bed!” We pupils are the most wretched creatures in the world. Dad does not agree with me on this. He did not have to work so hard when he was a boy ."

    The clock struck one. I was quite desperate now. I forgot all I had learnd. I was too tired to go on. I did the only thing I could. I prayed, “Oh, God, Please help me pass the exam tomorrow. I do promise to work hard afterwards, Amen.” My eyes were so heavy that I could hardly open them. A few minutes later, with my head on the desk, I fell asleep.

    “Body clocks” are biological methods of controlling body activities. Every living thing has one. In humans, a body clock controls normal periods of sleeping and waking. It controls the times when you are most likely to feel pain. Eating, sleeping and exercising at about the same time each day will help keep body activities normal. But changes in your life—a new job, for example—destroy the balance and thus cause health problems. You could have difficult sleeping, for example. Scientists suggest that early afternoon is the best time of day for physical exercise. They say we are stronger and faster then. Later, about four o'clock, most people feel tired because of the drop of sugar level in the blood. Early afternoon also is a good time to do tasks about memory（记忆） and mathematics. If you must study, however, do it just before going to sleep at night. Scientists say you are more likely to remember information when there is a short delay（耽搁）between study and bed. Body clocks control all the activities from day to day. They also produce changes about every ninety minutes during the day. At the end of such a time period, our ability to think hard begins to become weak. That is the time we are most likely to day-dream. Within fifteen minutes, we are ready to go back to what we were doing.

    Sydney Trains is one of the most economical, reliable and convenient ways to travel throughout Sydney and its surrounds.

    Our network, the NSW Trains Intercity, covers suburban Sydney and extends to the Hunter, Central Coast, Blue Mountains, Southern Highlands and South Coast regions.

    The network is made up of several color-coded lines. Trains from different lines can share the same platform, so check display screen and listen to announcements.

    Ticket prices are generally based on the distance traveled. You can visit transportnsw. Info for details.

    Getting to the City.

    In Sydney, if you're near a train station, you're on your way to the city. Every rail line leads directly or indirectly to the City Circle. It's the loop around the central business district of Sydney. Most City stations are underground so look out for the sign on street level.

    Automatic ticket gates

    Large stations have automatic gates for entry to, and exit from, the station. If you have an Opal card or a ticket which has a magnetic stripe you must use the automatic gates. You may use the wide gate for wheelchair, pram or luggage access. Station staff will assist you.

    Night Ride buses

    Most trains do not operate between midnight and 4:00 a.m. For your convenience a special Night Ride bus service is available between these hours on most Sydney suburban lines.

    Track work

    In order for the tracks to the maintained, we sometimes have to replace train with buses, particularly at weekends, Please check the track work section for the latest service alterations on your line.

    The Ice and Snow Festival Highlights

    It will fall upon January 1st, 2019 and last till the early March, 2019. Based on the theme of “Bright Pearl of the Crown of Ice and Snow”, a variety of activities about ice and snow, concerning tourism, culture, fashion and sport, will be open to all tourists.

    A telescope, called Gaia, is being designed by astronomers in Europe, and it couldn't be more different from Pan-STARRS, which is another telescope being designed. While Pan-STARRS will be looking for asteroids (小行星) and comets headed for Earth, Gaia will be looking at our entire galaxy (银河系).

    Gaia is designed to draw a map of the Milky Way, our home galaxy. Just as a map of your town gives you a picture of where things are located, Gaia's map of the galaxy will tell astronomers where the stars are. Over five years, Gaia will observe (观察) about a billion stars and other objects in our galaxy. Each object will be observed about 70 times.

    Gaia will be sent into space connected to a rocket. It contains two telescopes, each focused at a different angle (角度). These two telescopes act like Gaia's “eyes”. The reason why humans can see things in 3D is that we have two eyes focused on the same object, at slightly different angles. By using two telescopes like eyes, Gaia can produce the first 3D map of the positions of the stars it views.

    Gaia, which is to be sent into space, will be a powerful telescope. If you were to use it on Earth, for example, you could stand 600 miles away from your best friends and still get a clear picture of their hair.

    Gaia is one of more than a dozen telescopes being designed by scientists right now. The next generation of telescopes will reveal new parts of our universe that will seem surprising. The universe, with all its planets, stars and other strange objects, is a puzzle with pieces that we can see by using powerful telescopes.