Australia is the smallest continent in the world. It is a little smaller than China. It is on the Southern Hemisphere of the earth. Australia is big, but its population is small. The population of Australia is nearly as large as that of Shanghai.

    Enough laws have been made to fight against pollution. The cities in Australia have little air or water pollution. The sky is blue and the water is clean. You can clearly see fish in the rivers. Plants grow very well.

    Last month we visited Perth, the biggest city in Western Australia, and went to a wild flower exhibition. There we saw large numbers of wild flowers on show, most of which we had never seen before. We had a wonderful time. Perth is famous for its beautiful wild flowers. Every year in spring Perth has a wild flower exhibition. After visiting Perth, we spent a day in the countryside. We sat down and had a rest near a path at the foot of a hill. It was quiet and we enjoyed ourselves very much. When we heard bells ringing at the top of the hills, we looked up, but what we saw made us pick up all our things and run back to our car as quickly as we could. There were about three hundred sheep coming towards us along the path.

    Australia is famous for its sheep and kangaroos. After a short drive from any town, you will find yourself among the white sheep. Sheep, sheep, everywhere you can see sheep.

    Believe it or not, school uniforms are absolutely not only clothes for students. They stand for the culture or beauty appreciation standard of a country. To wear uniforms has become a trend in most countries in modern society. Well, let's take a look at school uniforms in different nations. This will be interesting. And here, you will detect diverse allure (魅力)！

    The style of England school uniforms is rather classic, simple and respectable. Middle school students must wear traditional western-style school uniforms. Boys wear traditional western-style clothes, regular leather shoes and must wear neckties. Girls also wear western-style clothes, regular leather shoes and must wear bow ties. This classic clothing style unconsciously affects England students' temperament(性格)and also sense of beauty.

    Both boy and girl students in Australia are required to wear black leather shoes and white socks. They wear school uniforms all the time except the physical education, when they need to wear gym suits.

    Students in Malaysia obey rather strict rules. Girls' dresses must be long to cover the knees. Shirts must cover the elbow. Comparing with Thai students, they are much more conservative. School uniforms in most schools of China are only different in size. You can't find big differences between boys' uniforms and girls' uniforms only from the appearance. Both of them are loose sport suits.

                                                                                      The Lifecycle of a T-shirt

    We all probably have a lot of T-shirts, but do you ever stop and think about the influence of a T-shirt on the planet? You'd probably be surprised to learn what's involved in the lifecycle of just one T-shirt.

    There are 5 major stages: material, production, shipping, use and disposal. The material stage involves farming, irrigating, fertilizing, harvesting and ginning. While cotton is a natural fiber (纤维) and not as harmful to the environment as manmade fibers, it still takes a toll in the material and production stages. Commercial cotton farming uses a large amount of water, and the use of pesticides (杀虫剂) is widespread across the globe, especially in cotton farming. Studies have shown that farmers spend around $4.1 billion on pesticides annually, of which 25% was spent on cotton crops in the US.

    Once the cotton is grown and harvested, so begins the production stage: spinning, knitting, bleaching, dyeing, cutting, sewing, etc.——these processes also use a great deal of water and energy. Commercial dyes and bleaches are harmful pollutants and can eventually pollute groundwater.

    After the T-shirt is produced, it enters the transportation stage. This often involves overseas shipping. Take a look in your closet. Chances are that most of your cotton garments (衣服) are made in China or India. Garments can be shipped via plane, ship or truck…, all of which spill CO₂ into the atmosphere. Calculations show that CO₂ emissions from light trucks alone amount to 1.15 pounds per mile.

    Once the T-shirt reaches the retail market, it is purchased. This stage may seem like the leastenvironmentally damaging part. But consider the number of times you've washed and dried your favorite T-shirt. Washing machines are certainly becoming more efficient. However, the average American household does 400 loads of laundry per year, using about 40 gallons of water per load. Such excessive water use is combined with the large amount of energy used by dryers.

    The final stage of life is disposal. This releases harmful emissions, or involves a landfill where cotton takes years to break down. Current US records show that an estimated 15% of clothes and shoes are recycled, which means that consumers send a shocking 85% of these materials to landfills.

    We all need new clothes every once in a while, but let's all try to keep in mind what goes into the production of clothing... It has a real impact on the planet.

    There are a lot of things you can do to help reduce your impact. Reuse and recycle clothes. If they're too worn out to wear, cut them up and use them as cleaning rags. Donate them to charity or another organization that recycles textiles. When possible, make an effort to buy organic cotton. Turn down the thermostat on your washer, and line dry your clothes when the weather will allow it.

    Renowned British physicist Stephen Hawking died peacefully at his home in the British university city of Cambridge in March 14 at age 76.

    Hawking, whose 1988 book "A Brief History of Time" became an unlikely worldwide bestseller and cemented (奠定) his superstar status, dedicated his life to unlocking the secrets of the Universe. He held the post of Lucasian Professor of Mathematics at the University of Cambridge, which is a position that was once held by Sir Isaac Newton.

    Born in 1942 in Oxford, where his parents spent the final months of pregnancy to avoid the bombings of London, Hawking was said to have been a good student although it wasn't until he was in his 20s that his true potential began to really shine through. Having initially wanted to study Mathematics, Stephen Hawking chose, instead, to read natural sciences with emphasis on Physics.

    Having found University life boring, so much so that he joined the University rowing team to relieve the boredom, it was only following an oral examination that he was awarded a first class degree.

    While at Cambridge, Hawking was diagnosed with a motor neurone (神经元）disease. He was initially given two to three years to live. The illness gradually robbed him of mobility, leaving him confined to a wheelchair, almost completely paralysed and unable to speak except through his trademark voice synthesiser (合成器）.

    Stephen Hawking led an incredible and well documented life. He was referred to in many TV programs, films, and even songs, and appeared as himself in a number of programs including Red Dwarf and the Big Bang Theory. His genius and wit won over fans from far beyond the world of astrophysics (天体物理学）, earning comparisons with Albert Einstein and Sir Isaac Newton.

    Spending money on time-saving services reduces stress and boosts(增进）happiness according to a new research, but shockingly, few of us do it.

    Whillans, a professor at HBS said, "Buying time helps to protect us from the stress in our lives caused by time pressure, and the feeling that we don't have enough minutes in the day to complete our tasks."

    The effect was clearest in the Canadian experiment, in which 60 working adults were given $40 to spend in two different ways. One weekend, they were told to spend the money on a material purchase—a gift for themselves. The next weekend, they were instructed to spend the $40 on anything that saved them time,  from paying the neighbor ' s kid to run errands (跑腿）to taking an Uber instead of a bus.

    "On the day they made the time-saving purchase, they felt happier, in a better mood, and lower feelings of time stress than on the day they bought a material purchase, " said Whillans.

    The biggest surprise to the researchers was how few people would spend money on time-saving services. When they asked 98 working adults how they would spend a "windfall"(意外之财) of $40, only two percent named a purchase that would save them time.

    "One reason," said Whillans, "is that we're very bad at remembering how much we hate doing certain tasks once the suffering has passed. That makes us less likely to take active steps to avoid that overburdened feeling in the future. "But another possible cause is good old-fashioned guilt." If you feel guilty about getting someone to clean your house for you, then you might get less happiness from outsourcing (外包）that task, " said Whillans, "or you might just be less likely to spend your money in that way."

The following four famous paintings—from Jan van Eyck's portrait to Pablo Picasso's masterpiece—have stood the test of time.

The Arnolfini Portrait

The Arnolfini Portrait of Jan van Eyck, an oil painting on wood produced in 1434, in which a man and a woman hold hands with a window behind him and a bed behind her, is undoubtedly one of the masterpieces in the National Gallery, London. This painting is as visually interesting as it is famed. It is also an informative document on fifteenth-century society with Jan van Eyck's heavy use of symbolism—while husbands went out to engage in business, wives concerned themselves with domestic duties.

The Starry Night

Vincent van Gogh painted The Starry Night, oil on canvas(画布), and a moderately abstract landscape painting of an impressive night sky over a small hillside village, during his 12-month stay at the mental hospital near Saint-Rémy-de-Provence, France between 1889 and 1890. When the Museum of Modern Art in New York City purchased the painting from a private collector in 1941, it was not well known, but it has since become one of Vincent van Gogh's most famous works.

The Harvesters

The Harvesters is an oil painting on wood completed by Pieter Bruegel the Elder in 1565. It depicts(描绘) the harvest time which most commonly occurred within the months of August and September. Nicolaes Jonghelinck, a merchant banker and art collector from Antwerp, commissioned this painting. The painting has been at the Metropolitan Museum of Art in New York City since 1919.

Guernica

Guernica, a large black-and-white oil painting, was painted by the Cubist Spanish painter, Pablo Picasso in 1937. The title "Guernica" refers to the city that was bombed during the war. The painting depicts the horrors of war and as a result, it has come to be an anti-war symbol and a reminder of the tragedies of war. Today, the painting is housed at the Museo Nacional Centro de Arte Reina Sofía in Madrid.