The percentage of women working in technology has decreased since the 1990s.Women make up only a quarter of all jobs in computer and math professions.I think all girls should learn how to code（编码）.Here is why.

    If we want to be part of one of the fastest growing job markets out there,we need to jump on board!Over the last ten years the growth in STEM jobs has been three times faster than that in non-STEM fields.Women will never be able to keep up with men in the professional workplace if we don't join the fastest growing fields.

    Just like hundreds of years ago,people who could read and write controlled the future,and now those who are at home with technology will shape the world we live in.You can use coding in every aspect of your life,even if you don't enter a field that involves coding.You cant use coding to create your own website or to program games.You can animate your YouTube videos,or make graphic designs.Programming is now being used in every profession, including medicine and airplane design.

    You can have fun creating your own website,programming a robot to get the remote for you when you're lying on the couch,photoshop pictures to change the color scheme to something better than the Instagram filters,and so much more.Coding allows you to realize your wildest dream,and create anything you can imagine.Coding allows you to rule the world.

    It's not very hard to learn to code.You could learn to code on YouTube,in the Girls Who Code club;you could take a free course online on Code Academy;you could even just Google how to code.

You learned to read,you learned to drive-now learn to code.

    Queensland is one of the most amazing states in Australia. It has some of the most beautiful natural scenery on the planet, with the Great Barrier Reef, rainforests and impressive beaches.

The Great Barrier Reef

    It is one of the world's largest natural features. It stretches more that 2,300 km along the north eastern coast of Australia from the northern tip of Queensland to just north of Bundaberg. The things that most surprise visitors to the reef are the colors.

Without doubt, the best way to see the Great Barrier Reef is by diving. If you have a little extra money and you are feeling a bit lazy, you can fly over the reef in a plane.

Fraser Island

    Another area of natural beauty is Fraser Island. This is the world's largest sand island. It's best visited from Hervey Bay on the mainland, where there are a number of places offering trips around the island. To fully appreciate Fraser Island you should go for three or four days. Attractions include some beautiful fresh-water lakes, particularly Lake Wabby and Lake Mckenzie. You can walk around these on white sands untouched by human footprints. Indian Head also has some beautiful views. Braver travelers can go and watch sharks circling the water hundreds of meters below.

The Whitsunday Islands

    It would be a pity to travel around Queensland without taking a trip around the Whitsunday Islands. They were named by Captain Cook in 1770, after the day on which he arrived. Here are some of the great things you can do there.

●Cruise around them on a relaxing trip.

●Take a sailing course.

●Look at the aboriginal (土著的) paintings in caves on Hook Island.

●Have fun in the water doing lots of water sports.

    So, will you be going to Queensland?

    If humans were truly at home under the light of the moon and stars，we would go in darkness happily，the midnight world as visible to us as it is to the vast number of nocturnal(夜间活动的) species on this planet. Instead，we are diurnal creatures, with eyes adapted to living in the sun's light. This is a basic evolutionary fact, even though most of us don't think of ourselves as diurnal beings. Yet it's the only way to explain what we've done to the night: We've engineered it to  receive us by filling it with light.

    The benefits of this kind of engineering come with consequences 一 called light pollution 一 whose effects scientists are only now beginning to study. Light pollution is largely the result of bad  lighting design，which allows artificial light to shine outward and upward into the sky. III-designed lighting washes out the darkness of night and completely changes the light levels 一 and light  rhythms — to which many forms of life, including, ourselves, have adapted. Wherever human light spills into the natural world, some aspect or life is affected .

    In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze(霾) that mirrors our fear of the dark. We've grown so used to this orange haze that the original glory of an unlit nigh, - dark enough for the planet Venus to throw shadow on Earth, is wholly beyond our experience, beyond memory almost.

    We^'ve lit up the night as if it were an unoccupied country, when nothing could be further form the truth. Among mammals alone, the number of nocturnal species is astonishing, Light is a powerful biological force, and on many species it acts as a magnet(磁铁). The effect is so powerful that scientists speak of songbirds and seabirds being “captured” by searchlights on land or by the light from gas flares on marine oil platforms. Migrating at night, birds tend to collide with brightly lit tall buildings.

    Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times righter than normal, throwing nearly every aspect of their behavior out of joint including most other creatures ,we do need darkness .Darkness is as essential to our biological welfare, to our internal clockwork, as light itself.

    Living in a glare of our making,we have cut ourselves off from our evolutionary and cultural heritage—the light of the stars and the rhythms of day and night .In a very real sense light pollution causes us to lose sight of our true place in the universe, to forget the scale of our being, which is best measured against the dimensions of a deep night with the Milky Way—the edge of our galaxy arching overhead.

    Humans and many other mammals have unusually efficient internal temperature regulating systems that automatically maintain stable core body temperatures in cold winters and warm summers. In addition, people have developed cultural patterns and technologies that help them adjust to extremes of temperature and humidity (湿度).

In very cold climates, there is a constant danger of developing hypothermia, which is a life-threatening drop in core body temperature to below normal levels. The normal temperature for humans is about 37.0℃. However, differences in persons and even the time of day can cause it to be as much as 6℃ higher or lower in healthy individuals. It is also normal for core body temperature to be lower in elderly people. Hypothermia begins to occur when the core body temperature drops to 34.4℃. Below 29.4℃, the body cools more rapidly because its natural temperature regulating system usually fails. The rapid decline in core body temperature is likely to result in death. However, there have been rare cases in which people have been saved after their temperatures had dropped to 13.9-15.6℃. This happened in 1999 to a Swedish woman who was trapped under an ice sheet in freezing water for 80 minutes. She was found unconscious, not breathing, and her heart had stopped beating, yet she was eventually saved despite the fact that her temperature had dropped to 13.7℃.

In extremely hot climates or as a result of uncontrollable infections, core body temperatures can rise to equally dangerous levels. This is hyperthermia. Life-threatening hyperthermia typically starts in humans when their temperatures rise to 40.6-41.7℃. Only a few days at this extraordinarily high temperature level is likely to result in the worsening of internal organs and death.

Last year, I baked biscuits for complete strangers to say "thank you". I'd had to call 999 because I found my husband unconscious on the floor. Within minutes, a police car arrived and soon my husband received medical care in hospital.

A week later, when I dropped off still-warm biscuits and presented a thank-you note at the police station, the policemen thanked me for delivering gifts.

I drove away feeling light and happy. Later, I realized that my natural high might have been more than it seemed. Research has shown that sharing gratitude has positive effects on health. People who express gratitude will increase their happiness levels, lower their blood pressure and get better sleep.

What about people who receive gratitude? Research has confirmed that when people receive thanks, they experience positive emotions. "Those are happy surprises," says Jo-Ann Tsang, a professor of psychology. When someone is thanked, he's more likely to return the favouror pass kindness on, and his chances of being helpful again doubles, probably because he enjoys feeling socially valued.

The give-and-take of gratitude also deepens relationships. Studies show that when your loved ones regularly express gratitude, making you feel appreciated, you're more likely to return appreciative feelings, which leads to more satisfactory in your relationships.

Nowadays, however, many people don't express gratitude. Our modern lifestyle may be to blame. With commercial and social media, everything is speeding the younger generation to feel they're the centre of the world. If it's all about them, why thank others?

Why not thank others? Just take a look at how many positive effects can saying "thank you" have on personal health—and the well-being of others.

If you aren't particularly grateful, I strongly suggest you learn to be. People who are instructed to keep gratitude journals, in which they write down positive things that happen to them, cultivate（培养） gratitude over time.

China's tea culture is an ancient and profound（意义深远的）cultural heritage that has been passed down and developed for thousands of years. It weaves an complicated and fascinating pattern within Chinese society.

Tea growing in China is an art form in itself. The tea- growing areas, with their special climates and lands, produce teas of exceptional quality. From the misty mountain s of Fujian to the green landscapes of Yunnan, different areas offer a rich variety of tea types.

The process of making tea is careful and detailed. It involves exact measurements of water temperature, the right amount of tea leaves, and a certain steeping time to get the fullest flavor and smell. This care for details shows the Chinese people's search for excellence in all parts of life.

Tea is not merely a beverage; it is a thing that helps social relations. It brings people together, whether in family get- togethers, friendly meetings, or business talks. The act of sharing a cup of tea is a sign of kindness and connection. And the many tea- houses all over the country offer places for people to relax, talk, and enjoy the peace that tea gives. Moreover, tea ceremonies are an important part of Chinese culture. These ceremonies are complex and formal, showing the grace and elegance of Chinese traditions. They involve exact movements and a deep respect for the tea and the process.

In addition to its social and cultural importance, tea in China is also known for its possible health benefits. It is thought to have anti- oxidant（抗氧化的）features and is linked to various good effects on physical health.

As China keeps moving forward and modernizing, its tea culture is still strongly fixed, a proof of its historical and cultural importance. It keeps attracting both the Chinese people and those from around the world, inviting them to explore and enjoy the beauty and depth of this great cultural phenomenon.