There are two main types of non­verbal communication. Body language is the first. Body language is body movements that depend on a person's attitude or feelings. Body language includes the way people walk，how they stand，and their facial features. In other words，any kind of meaning is shown by a person's attitude or body movements. For example，when a boy is sad he may drop his head and walk slowly. Or，if a girl is happy，she might run and jump or stand up straight and put her hands in the air. People don't have to say anything to show how they feel about things. The colour of people's skin may even show how they feel. For example，if people with light coloured skin get embarrassed，their skin may turn red，or if they are worried，they might get pale. Body language can be voluntary(主动的) or involuntary(无意识的)．An interesting fact is that blind children will smile when happy even though they have never seen a smile.

    The next main type of non­verbal communication is gestures. Gestures are communications like facial expressions，hand signals，eye gazing，and body postures. Examples include smiles，handshakes，waving，and raising certain fingers to say something. For instance，if you saw a friend at a noisy carnival，you might smile and wave at your friend. You might also point at the Ferris wheel if you wanted to meet your friend there. You could do all of these things without saying a word. Another great example is in baseball when the catcher signals to the pitcher the kind of pitch to use for the batter that is up.

    Courses Available at North Coast College Campuses

    Agriculture

    Specialist agriculture centres of the North Coast College offer courses ranging from agricultural skills to beef production, horse studies and rural management. The Wollongbar Campus is famous for its Tropical(热 带的) Fruit Growing program and has introduced courses on bush foods and coffee production. Taree offers the Veterinary(兽医的) Assistant program and has introduced “Agristudy”, which enables students to learn flexibly and by correspondence( 函 授 ), using a mixture of student learning guides, telephone tutorials, information sessions and workshops. Mullumbimby has the popular Rural Business Management program, which can also be studied by correspondence. Grafton, meanwhile, offers traineeships in agriculture including beef and dairy.

    Health Programs

    The continued improvement of healthier living within the community has seen an increase in fitness awareness and a need for trained staff in the Fitness and Sport industries. Fitness Instruction courses are offered at Tweed Heads and teach students how to keep healthy and lead a safe fitness program.

    Lismore offers the Aged Support program and Port Macquarie offers the Early Childhood Nursing program. These courses give you the theoretical skills, knowledge and practical experience needed to work in a variety of residential and community-based health care institutions. For students interested in working in the Medical Health Care industry, Kingscliff is a specialist centre for the Natural Therapy Diploma and has a health clinic on campus.

    Environmental Studies

    The Environmental Studies courses offered by the North Coast College have been developed to help students increase their awareness and understanding of environmental issues and to enable them to determine their environmental impact. The Environmental Practice course, which includes Coastal Management, is offered through the Ballina Campus.

    For people interested in working to protect natural forests, the North Coast College offers the Forest Protection course at Casino. This course can provide a pathway for students into the Natural Resource Management Diploma at university.

    Red leaves are a symbol of autumn. Enjoying red leaves in the clear, refreshing autumn weather is indeed a good choice.

    Now let's have a look at the best red leaves around China and the beauty of autumn.

    Destination 1

    With different red colors, the Red Leaf Valley extends (延伸) more than 50 kilometers from Jiefang village in Qingling town to Yanjiang village in Songjiang town, Jilin province, Northeast China. Leaves are like different red pigments (颜料), including Chinese red, orange red, ruby red and bright red.

    Best time: October

    Destination 2

    Tachuan or Tashang village is in Huangshan city, Anhui province, East China. The beautiful autumn scenery there is known as one of the four best in China. The red leaves and clear spring add beauty to traditional houses, offering material for photography lovers.

    Best time: early to late November

    Destination 3

    As a result of low temperatures, maple leaves in areas south of the Yangtze River are like shy girls, gradually showing their beauty, turning from green to gold, gold to orange and finally to red. And as it changes slowly, different colors can be seen on the same trees called "colorful maple trees". Viewing at the mountainside is the best choice.

    Best time: October to November

    Destination 4

    For Guangdong province in South China, autumn always comes a little late and lasts longer. Through the end of January, you can see the red leaves any time you want. If you feel pity at saying good-bye to red leaves in North China, you can head to South China to view the beautiful scenery again.

    Best time: end of November to end of January

    Auctions(拍卖行) are everywhere. Here are just a few standouts and some of the areas they specialize in. All have brick-and-mortar(实体的) sales rooms in addition to online buying.

    Leslie Hindman Auctioneers

    Headquarters(总部): Chicago

    Founded: 1982

    Best bets: contemporary art, jewelry

    The founder, Leslie Hindman, has been on an expansion kick from her Chicago base and now runs eight offices across the country. Ms. Hindman said that plenty of items sell at her house for around $500. As in the auction world generally, jewelry and contemporary art receive lots of attention from bidders(出价者), and in2017 a diamond ring sold for $97,000.

    Swann Auction Galleries

    Headquarters: New York

    Founded: 1941

    Best bets: books, works on paper, African-American art

    Founded as a rare-book auctioneer, Swann still holds dozens of such sales a year. The president, Nicholas D. Lowry, noted that Swann was the first auction house to sell old photographs, in 1952.The house has also had a department of African-American art for 12 years.

    Stair Galleries

    Headquarters: Hudson, N.Y.

    Founded: 2001

    Best bets: English and Continental furniture and paintings, modern and contemporary art

    Colin Stair, the founder and president, comes from a long line of antiques dealers (商人). Stair is frequented by dealers and bargain hunters, and it's a place to find interesting things like a George I carved walnut wing armchair, coming up as part of a sale on April 28 and 29.

    Heritage Auctions

    Headquarters: Dallas

    Founded: 1983

    Best bets: coins, sports memorabilia, movie posters

    With roots in coin auctions, Heritage has grown quite large. But their bread and butter are items that the company president, Greg Rohan, calls "the kinds of things that everyone has." "People aren't buying what were selling for decoration or for resale," he added. "They're buying things they absolutely love."

    The summer I turned 16, my father gave me his car — a gift wasted on me at that age. The important thing was that Hannah and I could drive around.

    Hannah was my best friend, a year younger but much taller, almost five foot ten. "Hannah's a knockout, "my mother always said. And that summer she signed with a modeling agency. She was already doing runway work.

    A month after my birthday, Hannah and I went to the movies. On the way home, we stopped at the McDonald's drive-through, putting the fries on the seat between us to share. "Let's ride around a while, "I said. It was a clear night, full moon slung(悬挂)low over the desert. Taking a turning too fast, I plowed (撞)through a neighbor's wall and drove into a full-grown tree.

    We were taken in separate ambulances. I'd cracked(使裂开)my cheek bone; Hannah's forehead had split wide open. End of her modeling career. What would I say to her?

    When her mother, Sharon, came into my hospital room, I started to cry. She sat beside me and took my hand. "I rear-ended(追尾) my best friend when I was your age, "she said. "I totaled her car and mine."

    "I'm so sorry," I said.

    "You're both alive," she said." The rest is window dressing. I forgive you. Hannah will too."

    Sharon's forgiveness allowed Hannah and me to stay friends throughout high school and college, to be at each other's weddings … The scars are so faded no one else would notice, but in the sunlight I can still see it just below her hairline — for me, a mark of grace(优雅).

Hot Technology Products at CES 2020

The consumer electronics show, or CES, presents new technology developments annually. Here are some latest products launched at CES 2020.

The Sero TV

Samsung introduced a TV that can be used to watch video designed for a smartphone. The Sero TV does this by turning itself from the normal TV position to an upright position that looks like the shape of a phone. The V can connect to mobile devices to play video directly from the phone.

Smart waste can

A company called TOWNEW presented; waste can designed for the home that does a lot of the dirty work on its own. When the can is full, the user touches a button to activate the machine's smart abilities. The device then completely closes off the waste bag inside, puts a new one in place, all by itself, and raises its top so the user can pick up and throw away the bag.

Invisible car hood(引擎盖)

Automobile industry company Continental showed off a new technology that seems to make the front end of a vehicle disappear. The technology, called "Transparent Hood," aims to make driving safer and easier. Cameras provide video of the area underneath the vehicle, permitting the driver to see objects and road conditions that might present danger.

Wearable air purifier

A company called Aō Air introduced a wearable air purifier. Designed to be a high-tech face covering to block pollution, the device pulls air through a filtration(过滤)system and then uses fans to create a small area of clean air at its front, allowing the air to be purified-without the need for a solid container.