Frank is my brother. He is twenty-one years old. He is a waiter. He works in Green Restaurant. He works very hard. And he is kind to people. So his boss Mr. Green likes him very much. Every weekend he always gets some money from his boss. But Frank isn't happy because he doesn't like his job. He thinks it's boring. He likes singing. He sings very well and he can sing songs in English. So he wants to be a singer. He likes Jay Chou best and he likes his English song Thousands of Miles Apart.

    When Jason's parents saw him for the first time, they were shocked（震惊）.This lovely little baby with shining blue eyes and curly hair was born disabled（残疾的）. But soon the young couple accepted this fact: Jason's arms are just half without hands and his legs aren't fully grown either. They even forgot to think of him as disabled.

    At the age of six, he told his mother he wanted to get down from the prosthetics（假肢）and play with other kids. This was the last time Jason had worn them. He now has an electric wheelchair（轮椅）, but he never uses it at home or when it is easy for him to move using only his body.

    Jason learned handwriting and coloring at school, holding the pen between the ends of his arms. He also learned to eat with forks at home. When he was ten, he fell in love with football. He never had a pair of shoes in his life because of the shape of his feet. He only wore socks on the football field. He never won a match, but he refused to give up. His strong arms and body, as well as some fantastic ways made him a respected（受尊重的）player on the school team. He went to a famous university after high school.

    Now Jason still faces many hardships in life, but he will make you believe that you can do what he has done. “Never be afraid of any difficulty”, Jason often encourages others in his speeches.

David Strayer never texts or talks on a phone when he is driving. Strayer is a famous psychologist (心理学家) at the University of Utah. His research shows that, when driving using a phone can be as dangerous as drinking wine.

Strayer and other scientists warn against multitasking (多任务处理). When we do many things at the same time, Strayer says our brain becomes tired easily. So we may make mistakes and lose attention.When we spend hours on digital devices like videos and computers, our productivity reduces. Too much multitasking reduces our ability to think clearly and creatively. This can result in stress (压力).

What is the best way to help us lower too much stress? David Strayer says the answer is simple: Spend some time in nature.

Strayer and other scientists are studying nature's effect on our brains and bodies. When we are in natural environment, the brain's control center relaxes. Studies show that when people can see trees and grass, they do better on different tasks.

Other psychologists are also studying "nature therapy (疗法) ". In a study at Chiba University in Japan, a researcher named Yoshifumi Miyazaki found that forest walkers did better than the city walkers. He has an explanation for these results. "Our bodies relax in the natural environment," he says. "Humans evolved (进化) in that environment, not in places with tall buildings and lots of traffic. This allows our brains to rest and recover from the stresses of city life. Imagine a therapy that could improve your cognitive (认知的) ability at zero cost. Why not try it at once?

My name is Liam Wong and I work in a video game company (公司). To make games more interesting and more enjoyable, I travel a lot. I have traveled to lots of places around the world since I got the job two years ago.

And of all the cities I have visited, I love Tokyo best. I fell in love with Tokyo when I first visited it in 2014. And during my second trip there, I bought my first DSLR and used it to take many photos of different parts of Tokyo.

Then one night it rained and the city seemed more beautiful. I enjoyed the beauty of Tokyo that night, and kept taking pictures. After putting the pictures online, many people asked me, "How could you take such wonderful photos? Do you have great shooting (摄影) skills? Did you wait hours to take the photos?" I said no. I just walked around and captured (拍摄) what was in front of me.

I'm looking forward to my third time in Tokyo. Would you like to go with me?

What is the most stressful thing in school? It is probably exams. Exams can put us under a lot of pressure. But some students do well under pressure while others feel terrible. {#blank#}1{#/blank#}

It all comes down to dopamine (多巴胺). {#blank#}2{#/blank#} It has many important roles: influencing memory, attention. and how we learn. Our brains work best when there is an even balance of dopamine—not too much or too little. The brain controls dopamine in two ways. It either takes out dopamine quickly, or gradually. Exam success can be related to how fast dopamine goes back to an even balance.

 {#blank#}3{#/blank#} if you become stressed, your brain will start to have too much dopamine. {#blank#}4{#/blank#} The quicker you are able to go back to an even balance of dopamine, the quicker you can fix yourself perform better on a test. 

Scientists found that, during a test, people who slowly got back to an even balance of dopamine scored 8 percent lower. {#blank#}5{#/blank#} The answer is yes. So don't fear, there is some good news. The study also found that the more practice you get, the less stressed you'll be. So, it turns out that practice really does make perfect.

A．What happens when we sit for an exam?

B．It is like a cup flowing over with water.

C．So, why do some students perform better under stress?

D．That's the difference between a good mark and a bad mark.

E．Dopamine is a chemical in our brain that sends information to our body.

F．Is there anything that can help change the speed of dopamine getting into our body?