Tim, Bob and Frank lost their schoolbags. They are in the Lost and Found case. The schoolbags are the same, but the things in them are different. Can you help them find the right schoolbag?

Tim: I have a math book and a pencil box in my schoolbag. There are three pencils, a pen and an eraser in the pencil case.

Bob: I have a Chinese dictionary, a math book and two notebooks in my schoolbag.

Frank: There are two CDs and three picture books in my schoolbag. My English books are also in it.

    Jim loved traveling in his free time. Once he walked to a sacred shrine(圣地) in the Himalayas. The journey was long and the mountain road was hard to walk on. Though he carried little baggage(行李),the road was very difficult for him. He kept sweating(流汗). Just ahead of him, he saw a little girl, less than 10 years old, carrying a boy on her back. She was also moving on slowly. She panted(喘气) heavily, but her hands still firmly held the boy on her back .

    When passing by the little girl ,Jim said to her, "My girl, you must be very tired because what you carry is so heavy！"Hearing this, the little girl said, "What you carry is a weight, but what I carry is not a weight; He is my little brother. I must take him to the hospital."

    It is true that both a brother and a burden(负担) have a weight. But what the little girl said is also true: What she carried was her little brother, not a weight. She loved her little brother from the bottom of her heart.

Good evening, ladies and gentlemen. Welcome to our fashion show (时装秀). I am Millie from Class, Grade 7. Today we are going to show you different styles of clothes. 

Look at me. I am wearing sports clothes and a pair of trainers. Trainers are light and comfortable and are popular among young people. 

Here comes Simon. He is wearing a purple shirt and a pair of gray trousers. His red and gray tie (领带) matches his clothes. He looks smart. 

Now Amy and Daniel are coming. They look cool! Amy is wearing a yellow cotton blouse and a blue scarf. Daniel is wearing a blue T-shirt. Both of them are wearing blue jeans (牛仔裤). Young people really like jeans！

Look! Here comes Sandy. She is wearing a red silk blouse, a black wool skirt and a pair of red boots. She looks modern and beautiful! 

……

That's all for today's show. Thanks for coming.

①Why do we do the things we do? What drives our behavior? Researchers have suggested different ways of thinking about motivation (动机), including looking at whether motivation comes from outside or inside a person.

②Extrinsic(外来的) motivation is when you decide to do something because you want to get a reward or avoid punishment. Intrinsic (内在的) motivation is when you do something because you find it enjoyable. The behavior itself is its own reward.

③There are many advantages of intrinsi c motivation. Firstly, it's lasting. It makes people willing to face challenges and work hard to achieve their goals. Besides, people with intrinsic motivation have a greater sense of satisfaction.

④Most people think intrinsic motivation is best, but it is not always possible in every situation. Sometimes a person has an unpleasant task and he may not have internal(内部的) wish to complete it. That's when we need extrinsic motivation. But studies have shown that offering too many external (外部的) reward can reduce intrinsic motivation. For example, in a study, they became less interested in the toys.

⑤Both extrinsic and intrinsic motivation play a key role in learning. Experts have argued that traditional education pays too much attention to external rewards, such as grades. This undermines the intrinsic motivation that students might already have. However, others have suggested that extrinsic motivation can help students feel more knowledgeable in class. It helps to build up their intrinsic motivation. 

⑥Understanding how each type of motivation works and when it is likely to be useful can help people complete tasks and improve their learning.

Zheng Qinwen, a 21-year-old Chinese girl who is talented in playing tennis, won the first gold medal in the women's singles tennis in Paris Olympic on August 3^rd.This is the first time that Chinese team has won the Olympic gold medal in women's singles tennis.

"Nothing can describe my feeling right now, it is unreal. I have always been hoping to get a gold medal for China. Finally, I made it." Zheng said excitedly after the last competition. She thinks national honor is the most important. She loves her country so much, playing for China has given her energy（精力）as well as power（力量）. Although she was very tired after 3 hours' competition, she always said proudly "What I can be sure is that I'm going to fight until the last moment, because I am not only playing for myself but also for my country. I'm so tired but I'd like to fight for another three hours for my country."

Zheng's journey to victory was filled with challenges but she faced these difficulties bravely and tried to do it better. In the end, she made the history. The whole world remembered her name.

She also encouraged young people to dream bravely because only by dreaming can they have a goal to achieve（实现）. "Be sure to enjoy the process（过程）and you will find that everything you did in the past are worth（值得的）it."