The following is a QUIZ(自测) from a magazine.

    With the rapid development of science and technology, communication methods of people have changed a lot in the past years.

    As we all know, in ancient times, people communicated with people who were far from them only by letters, which took a very long time to get the message.

    In the 19th century, telegraph was invented, but it was not widely used, letter is still the main method at that time. In1836, John Coker invented the first electromagnetic telegraph(电磁电报机) in the world, then telegraph appeared and was popular, which was much faster than letter, bringing great convenience to people.

    As time goes by, telephones become increasingly widely used. Now, the phone has been developed as mobile phone, fixed telephone, Internet telephone and other kinds, being an essential communication tool in the modern information society.

    In addition, network communication is popular as well. It is especially widely welcomed by the youths. A great number of people communicate with others on the Internet by using software, such as email, QQ, WeChat, bbs, MSN and so on. Using software is easy. A computer which is connected to the network is enough. In China, WeChat has become the most popular communication software nowadays. WeChat, known as Weixin in Chinese, is a mobile phone text and voice messaging communication software which is developed by Tencent. People can make video calls that not only can hear the sound, but also can see the people you talk to.

    Have you ever taken photos by using mobile phones with selfie sticks (自拍杆)?{#blank#}1{#/blank#} 

    However, a pair of US artists from New Mexico, Arie Snee and Justin Crowe believe they have invented a better one and they call it "selfie arm". {#blank#}2{#/blank#} It makes those people in the pictures seem to be holding hands with a love one.

The pair say it offers a far better experience than using a straight stick. The selfie arm makes people feel they are not alone when they take photos. {#blank#}3{#/blank#} They think their invention solves the main problem that the selfie stick has – people look alone while they are taking pictures of themselves with great interests. The product, at present, just an art project and a model, conveniently provides you a welcoming arm. {#blank#}4{#/blank#} The pair say they are fascinated by these new ideas.

    The "selfie are" is made of fiberglass. {#blank#}5{#/blank#}

    The project that they work on shows the growing selfie stick phenomenon (现象) directly and increasing need for narcissism (自恋) and Internet agreement.

    My name is Mary. I am a middle school student. I like traveling. And I dreamed of visiting Beijing many times before. Last month I went there with my parents. I was so excited that I couldn't go to sleep the night before we started. I got up early and packed my backpack for the trip the next morning. It took us 25 hours to get there by train .After the breakfast and a short rest, we began our visiting plan. We visited many places of interest in Beijing, such as the Great Wall, the Palace Museum and the Summer Palace. They are all very fascinating, especially the Great Wall. We really enjoyed ourselves that week.

    After visiting so many exciting places of interest, I felt tired but happy because I learned a lot about the history of the city. As soon as I arrived home, I talked about it on the Internet with my classmates and showed them some photos that I took. They were happy to see the photos and they said what a great trip I had had.

    The digital(数字的)A report in a newspaper says that school accidents, such as food poisoning(食物中毒) fires, electricity and traffic, kill more primary and middle school students than anything else. So we must learn how to protect ourselves better. Here are some tips for keeping safety in mind every day.

    On our way home or to school Wait for the green traffic light, and look left and right before we cross the road, we'd better war bright-color clothes, so the divers can see us easily. Don't believe in strange people in the street.

    At school: When students around us begin to push other, we need to stand sill and try to hold onto something, or stay in a comer until the crowd(人群) leaves. If we fall down in crowd use both hands to cover the head. Lean(斜靠)to one side, curl up(蜷缩)our body and bend(弯曲)the legs.

    In a fire: Stay calm. Leave the classroom quickly under the directions or the teachers. Smoke can be more dangerous than fire, so use a piece of cloth to cover our mouth and nose. What will we do if the clothes burn? Remember not to run! Drop and fall to the ground. Then roll! It will make the fire go out.

    For eating: Wash fruits carefully before eating them. Check the expiration dates (保质期)on the packages of the snacks, and if it looks or smells bad, don't eat it.

Dear humans,

It's the first time I write to you, my Children. I sent you many messages in the past, but you didn't take them seriously. So I decide to write you a letter.

First, let me tell you more about our family. Dear humans, besides you, I have many other children. Some of them fly in the sky; some of them swim in the water; some live in ice-covered places; some run in the grasslands.

They might be very close to you, or even live in your house. But there are others that you may never have the chance to meet.

You bring them home to be your pets, friends and helpers. You put them in the zoos. You kill them for their meat and fur. And you even hunt them for fun. They bring you money and happiness, but they also bring you illness and death.

I hope you remember that wild animals are not your food, clothes or furniture. They are not killers, either. They are, in fact, your brothers and sisters. You should grow up together. I'm worried that one day you will be lonely if you keep killing them.

So, grow up, humans. Grow up to be more loving and caring. I hope you and all the wildlife can live happily in my arms.

Yours,

Mother Earth