To us, it seems so natural to put up an umbrella to keep the water off when it rains. But in fact the umbrella was not invented as protection against the rain. Its first use was as a shade against the sun.

    Nobody knows who first invented it, but the umbrella was used in very ancient times. Probably the first to use it were the Chinese, way back in the eleventh century B.C..

    We know that the umbrella was also used in ancient Egypt and Babylon as a sunshade. And there was a strange thing connected with its use: it became a symbol of honor and power. In the Far East in ancient times, the umbrella was allowed to be used only by those in high office or by royal people such as the kings or queens.

    In Europe, the Greeks were the first to use the umbrella as a sunshade. And the umbrella was in common use in ancient Greece. But it is believed that the first persons in Europe to use the umbrellas as protection against the rain were the ancient Romans. During the middle ages in Europe, the use of the umbrella most disappeared. Then it appeared again in Italy in the late sixteenth century. And again it became a symbol of power.

    Umbrellas have not changed much in style during all this time, though they have become much lighter in weight. It wasn't until the twentieth century that the umbrellas for women began to be made in all kinds of colors.

    A fourth-grade teacher allowed one of her students to shave her head in the schoolyard, after bullies（仗势欺人者）teased him about his own short buzz cut（短寸头发型）. Tori Nelson got the idea after noticing that Matthew Finney, a shy boy from her homeroom at Winlock Miller Elementary School in Washington state, was standing outside his classroom crying and wearing a winter hat.

    Ms. Nelson could see the back of his neck had been shaved, and since Matthew usually had very thick brown curly hair, she realized that he'd had a haircut over the weekend. She asked him what was wrong, and he said he'd gotten a buzz cut for the summer. But this morning, a fifth grader on the bus made fun of him, and he didn't want to come to class and get teased by other kids. Ms Nelson tried to convince Matthew to come inside, but since school rules prohibit kids from wearing hats indoors he refused – explaining that he was afraid of showing his haircut to the other children in case they also made fun of him.

    Finally I said: "If you take off your hat and come to class, I'll let you give me a buzz cut, too," 'Ms Nelson told Yahoo Parenting. I figured it's just hair, and mine is already short anyway. I might as well get it shorter in time for the warm weather.'

    Matthew excitedly took her up on the offer, and Ms Nelson and another teacher gathered all the fourth graders together during break time. A school employee brought in scissors, which Matthew used to the cheers of his classmates, excitedly watching as his teacher's hair fell away onto the ground in the schoolyard.

    'It was a lot of fun for the kids, and it helped Matthew feel better about himself,' said Ms Nelson.' You have to do what it takes to reach children. Teaching isn't just about reading and writing, it's about self-esteem and accepting differences.'

    Researchers continue to show the power behind our sense of smell. Recent studies have found, among other things, that the smell of foods like pizza can cause uncontrollable anger in drivers on roads.

    The review explains that smell is unique in its effects on the brain. According to Conrad King, the researcher who carried out the review, "more than any other senses, the sense of smell goes through the logical part of the brain and acts on the systems concerned with feelings. This is why the smell of baking bread can destroy the best intentions of a dieter."

    Smell, which dictates(决定) the unbelievable complexity of food tastes, has always been the least understood of our senses. Our noses are able to detect up to 10,000 distinct smells. Our ability to smell and taste this extremely large range of smells is controlled by something like 1,000 genes (基因), which make up an amazing 3% of the human genome. Researchers Richard Axel and Linda Buck were together awarded a Nobel Prize in 2004 for their ground-breaking research on the nature of this extraordinary sense. These two scientists were the first to describe the family of 1,000 olfactory (嗅觉) genes and to explain how our olfactory system works.

    According to one study in the research review, smelling fresh pizza or even the packaging of fast foods can be enough to make drivers feel impatient with other road users. They are then more likely to speed and experience uncontrollable anger on roads. The most reasonable explanation is that these can all make drivers feel hungry, and therefore desperate to satisfy their appetites.

    In contrast, the smells of peppermint and cinnamon were shown to improve concentration levels as well as reduce drivers' impatience. Similarly, the smells of lemon and coffee appeared to promote clear thinking and mental focus.

    However, the way genes regulate smell differs from person to person. A study by researchers in Israel has identified at least 50 olfactory genes which are switched on in some people and not in others. They believe this may explain why some of us love some smells and tastes while others hate them. The Israel researchers say their study shows that nearly every human being shows a different pattern of active and inactive smell-detecting receptors.

    I started reading Shakespeare when I was nine, after my grandfather, an actor, sent me a copy of Romeo and Juliet. The story and the language attracted me. I found out about Shakespeare Globe Centre New Zealand (SGCNZ) and started volunteering for them when I was about 10. When I was 13, I managed to run a film project with SGCNZ.

    I'm home-educated and a part-time correspondence student (函授生) as well. We have a drama group made up of quite a few people who are also home-educated .I've also joined Wellington Young Actors, a youth theatre company. There are many similarities and differences between being home-educated and attending a five-day programme. I love hearing other students' reactions when meeting them and share my different ways of experiencing the world with them. While explaining the way I learn can be a challenge, I love helping people to understand there isn't just one way of learning.

    Being home-educated has offered me the freedom to have an individualized education and to pursue my passions. My education has always been about making those focuses but I do lots of the same things as people who attend five-day programs do. Shakespeare is a great approach to lots of things around English, history and the arts. I think something you learn when you perform is connection. You have to have a connection with your fellow actors, with the audience and with Shakespeare. I learn this from actually being on stage and from taking part in different Shakespeare festival programs.

    I believe it's the emotion in Shakespeare that makes it relevant today. You can be reading something that was written 400 years ago and be able to see parts of your life in the work as it shows you how to understand the world and explore a lot of different ideas.

    Last summer, after finishing my work in China, I took the trip of a lifetime on the Trans-Siberian Railway (西伯利亚铁路). Leaving Beijing early on a Wednesday morning in July, my wife and I travelled through some awesome (令人惊叹的) countryside before we arrived in Moscow the following Monday.

    The first part of the journey took us past the Great Wall and through the grasslands of Inner Mongolia. At the Mongolian Republic border, we had a delay(耽搁)while the wheels were changed because the railway is different.

    On our way to the capital, Ulan Bator, we saw herdsmen (牧人) on horseback looking after their cattle. There was a great thunderstorm as we crossed a vast open plain. Later we had a quick tour of Ulan Bator.

    Next, the train took us into Siberia. After a stop at Irkutsk, a popular holiday resort(度假胜地), where a tour group left the train, we passed the great Lake Baikal. Later, we saw some lovely wooden houses in pretty, sunny countryside. This surprised us, as we had imagined Siberia as being covered with thick snow.

    Over the next few days, we passed through Novosibirsk, Omsk and other cities in the heartlands of the Russian Federation. By now, our body clocks were losing their sense of time. We wanted to sleep and eat at the wrong time!

    At last we reached Moscow. We were so tired that we slept for 16 hours that night. The next day we went sightseeing. We saw the Dremlin and some other magnificent (宏伟的) buildings in the Russian capital. Then, all too soon, it was time for us to return to our home in London.

    When I was about twelve, I headed to a restaurant for dinner with my family. It was winter, and on that night, the wind was really blowing hard.

    As my mom and I headed to the restaurant from our car, a girl about my age and her mother came up to us. They asked if we had any spare change (零钱). My mom right away asked where they lived. They pointed to an old car in a parking lot across the street. The girl said there were six of them living in that car. My mom said she had something to do after handing the people a few dollars. She sent me inside the restaurant with my dad and my three siblings (兄弟姐妹). But she didn't come. Later, I found out she had gone home and put all the food in our cupboards (食橱) into a few bags. Then, she brought that food over to the car and handed the bags to the family. I wasn't there when that happened, but I can only imagine the joy it brought to those people.

    A few days later, when I actually found out about what she had done, I asked her why she helped those people. She told me that they were not lucky. I remember the face of that girl who had asked us for change. She was the same age as me, yet we looked so different.

    Here I stood, dressed in almost new clothes, headed to eat in a restaurant and then back home to the bedroom I shared with my younger sister. I remember thinking that the other girl didn't have any food to eat and she was heading back to a cold car shared with five other people.

    After painting this picture in my mind, I understood why my mom had done what she did. I will never forget what she did that night, and how she taught me one of the best lessons I ever learned.