Don't throw away your old phones. You are actually throwing away real gold! Smartphones have many kinds of useful metals. People can recycle them to make new electronics.

    But many people may not knowthis. In Australia alone there are more than 25 million unused mobile phones lying around, The Sydney Morning Herald reported. The gold in these phones can add up to a value of more than $80 million. There are about 2 billion smartphone users around the world, who change their phone once every 11 months on average. So in China, eighty million old phones come along every year.

    However, it's not easy to get the useful things out of the phones. Smartphones have not only useful things but also harmful materials. Guiyu, a small town in Shantou, Guangdong, is one of the world's biggest dumping grounds for electronic waste, Reuters reported. Many recycling centers in Guiyu simply break the old electronics by hand and don't think about the pollution it causes. It's reported that 81 percent of children in Guiyu are harmed by lead poisoning(铅中毒).

    Veena Sahajwalla, a professor at Australia's University of New South Wales, has made a mini factory. It makes smartphone recycling cleaner and easier. The mini factory is very small and easy to move around. It breaks the phones and automatically(自动地)removes the phone's useful things. That way, humans do not get poisoned.

    Well, have you ever wondered what happens to the old phone after it's no longer yours? A part of your old smartphone could soon be proudly worn around the neck of one of the world's top athletes. Organizers of the 2020 Tokyo Olympics say that medals for the event will be made from recycled phones. They will also be made out of people's thoughts for avoiding waste. They think there is an important message in this for the future.

①Have you ever thought about what's more important, looking fashionable or feeling comfortable? You might have noticed many people choosing style over comfort and some even go to extremes(极端)to follow fashion. But we should remember: being fashionable isn't everything. It's more important to be healthy.

②Some people believe that they need to be a certain size to look good. So, they start extreme diets(日常饮食) that are not good for their health. They might not eat meals or eat too little, which can make them feel sick. Is it a healthy way to live?

③Also, many girls wear shoes with very high heels. They might think high heels make them look taller. But these shoes can actually hurt their feet and make it hard to walk comfortably, and it can increase risks of falls. Some even wear tight(紧的)clothes that influence blood circulation(循环), making it hard to breathe. Should we put fashion over comfort and physical health?

④Besides, some boys and girls spend a lot of time and money changing their hair color. The material they use is usually harmful to their health, To make their hair straight or curly, they also use tools that are hot enough to burn their hair. But using these tools too often or at very high temperatures can make the hair dry or even burnt. Is it really worth it to risk our health, spending so much time and money?

⑤So, let's rethink what's really important. Is it fashion or is it our well-being? Clothes or hairstyles don't tell us anything about a person's character. Instead of spending a lot of time choosing clothes, we could use that time to do fun things with friends. And instead of following extreme diets，let's eat properly and exercise regularly. Remember, your worth is not decided by your appearance(外貌), but by who you are as a person.

Ten years ago, I took up studying luck. I wanted to know why some people are always in the right place at the right time, while others always experience ill luck. Many people volunteered for my research. Over the years I interviewed them, watched their lives and had them take part in my experiments(实验).

I carried out a simple experiment to discover why there were differences in their ability to find lucky chances. I gave both lucky and unlucky people a newspaper and asked them to look through it and tell me how many photographs were inside. I had secretly placed a large message halfway through the newspaper saying, "Tell the researcher you have seen this and win $50." This message took up half of the page and was more than two inches(英尺) high. It was looking at everyone straight in the face, but unlucky people tended to(倾向于) miss it and lucky people tended to notice it.

Unlucky people are just more nervous than lucky people. They are busy looking only for what they need and this stops them from noticing the unexpected. As a result, they miss out on chances. Lucky people tend to be more relaxed and open. They can see everything that is in front of them, rather than just what they are looking for.

My research shows that lucky people live by several principles(原则). Here are some of these principles:

* Listen to your gut instincts(直觉) — they are often right.

* Be open to new experiences and break your normal thought patterns.

* Spend a few moments each day remembering things that went well.

* See yourself being lucky before an important meeting or phone call.

这些年共享单车进入汕头，请你就此写一篇短文谈谈你的看法。

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Musical instruments

Learning to play a musical instrument can change your brain, according to a US study. {#blank#}1{#/blank#}

Although it was said in the past that listening to Mozart or other classical music could make you smarter, there was little evidence to show music could improve brainpower.

{#blank#}2{#/blank#}They are about effects of musical training on skills of language, speech, memory, attention and even emotion. Researcher Nina Kraus also studied and analyzed the data(数据). He suggested that musical training could improve other parts of human communication. The effects of music training are similar to physical exercises and its effect on body fitness. Music has positive effects. "{#blank#}3{#/blank#}" the researchers said in the study. The study finds that playing an instrument makes the brain choose what is relevant in a complex process. {#blank#}4{#/blank#} It also includes coordination with other musicians. In addition, it says that musicians are more successful than non-musicians in learning to put sound pattern into words for a new language.

A. Music training can improve people's reading ability.

B. It finds that music training can improve speech and foreign language skills.

C. It may includes reading or remembering a score, timing issues.

D. The study by Northwestern University has studied lots of researches.

E. Researchers give many examples to show the positive effects of musical training.

F. So it requires us to re-examine the role of music in personal development.

Everyone likes festivals, because they mean a break from work. However, for some people, they mean {#blank#}1{#/blank#} work. Danny is a doctor in the hospital. He  {#blank#}2{#/blank#} many meals with his family because he is often called to the hospital suddenly. He is thankful for his {#blank#}3{#/blank#} support. He says,"I am just one of millions of {#blank#}4{#/blank#} in the world. "There are many people devoting(贡献) themselves to making our life a lot {#blank#}5{#/blank#}. We should thank all of them.