Sharon Reasonover first started volunteering at the age of 16. She hadn't really understood the meaning behind doing something for others until that summer day.

    Sharon got to the Ronald McDonald House (RMH) in Dallas, Texas. RMH is a "home away-from-home" for families so they can spend little money or no money to stay close by their sick children.

    Sharon remembered her first time walking into RMH-nervous and afraid of doing something wrong. After only 5 minutes, she began to communicate with families. "That day, I played with kids, laughed with their parents, and heard so many stories," says Sharon.

    Now Sharon is a 21-year-old student at the University of North Texas. She is still volunteering with RMH. "I met so many people there, and they changed my life," she says.

    A smile that Sharon will always remember came from a girl named Caroline. Caroline was badly ill, and she had great difficulty in eating. One day, Caroline's mom was angry with her, because she refused to have dinner. To help, Sharon said to Caroline that if she ate 5 bites. Sharon would do whatever she wanted. Little Caroline ate dinner that day, and Sharon had to dance in front of everyone! Although Caroline has passed away (去世), Sharon will never forget her smile.

Michelle, a famous lady, has found that more than 25% students are too fat in her country. It is a very serious problem. So she starts a Health Program to deal with it. The Health Program is to reduce the number of fat students today and in the future.

The program will get families, schools, newspapers, magazines and TVs to join together and deal with the students'obesity so that students will be at a healthier weight.

The program includes: Food stores should sell healthier foods; schools should arrange(安排) healthier meals without too much fat and more gym classes.

The lady is trying to fight the students' obesity all over the country because it can cause illnesses and high food cost. She wants the students to eat right, exercise more and control their weight. She also wants the students to understand it is important to have less sweet food and drink water, milk and fresh juices, but not to choose cokes. At the same time, she has also set a good example by planting a vegetable garden. She hopes that the garden will encourage more people to plant one, too.

The Health Program is really meaningful to the students today and in the future. As she says, "We can't always build the future for the young, but we can build the young for the future."

As the weather gets warmer，there are few things that are better to do than travel．But traveling might not be that fun for everyone，especially for those who have motion sickness（晕动症）．

Motion sickness is also called travel sickness．It is a common experience for many people．Depending on how you travel，it can be called carsickness or seasickness．People with motion sickness feel very uncomfortable while they are in motion．They feel sick and dizzy，like the room around them won't stop spinning．

It is generally believed that motion sickness happens when your senses become confused （困惑的）with each other，Scientific American reported．

We use different parts of our body to sense movement．Our eyes tell us if we are moving．The inner ears （内耳） contain a special liquid that helps us sense our direction and balance．Our muscles react to movement．

When you move around，these body parts work well together．But when you are in a car or an airplane，they get confused．Your inner ear signals that you're moving．This mismatch gives us motion sickness．

But some people are less sensitive to motion sickness．This may be because they have certain genes （基因） that prevent mismatching senses，Bethann Hromatka，told the Atlantic．

Although there are many ways to deal with motion sickness，scientists believe that the key is to simply try to adapt to it．For example，some astronauts do special exercises that give them mild motion sickness．After a week or two，the astronauts become used to it and don't feel uncomfortable anymore，a NASA flight doctor，told the BBC．

Most of us like to know where we are and where we're going. It can feel strange to be 1 . The words "being lost" make us think of a dark and scary wood or street, 2  that's not always the case. 

Once we were on holiday in Venice. Dad planned to go out to take photos early the next morning. Mum wasn't 3 , but I would go with him. That's only because he 4  I could have the biggest bowl of Italian ice cream if I did. 5  else would I get up so early?

We left the hotel and started walking in the 6  streets the next day. When the sun came up, Dad started taking photos and I 7  him. 

After about an hour, I turned to Dad and asked, "Where are we?" He said, "I have no idea. "I immediately felt a bit 8 , but Dad just laughed and said, "We're lost!"I told him to 9  his map or phone. He said, "I only brought the 10 . Come on, let's enjoy being lost!" He laughed again. 

His laughter 11  me and made me feel safe. I began to 12  that we were lost, and just started watching and taking in everything that was happening around me. 13 , after about four hours of walking around, we were back. Mum asked anxiously(担心地), "Where have you been?"I said with a big 14 , "We got lost!"

These days we 15  get lost with so many things around us — maps, GPS, apps on our phones and so on. But Dad showed me that being lost can sometimes simply be something to enjoy. 

Recently, a junior high school sent several students back home because they broke the school uniform(校服) rules. Should students wear school uniforms? The Young World magazine held a discussion on this topic. 

Kennedy: The school uniform is very important, because it always reminds me that I am supposed to go out of my way to study hard. It also helps prevent school bullying(欺凌). If everyone wears the same clothes, it is impossible to laugh at other people's clothing. 

Manson: The uniform has to be got through hard work. Students should start school with no uniforms. As they make progress at school, they start wearing it. I always think children need to be proud of their schools. The uniform is important for that. So, make students work hard to get it! If they don't behave(表现) well, they should not be allowed to get one. 

Moorhead: In my opinion, kids don't have to wear uniforms. There should be more choices open to kids in education. They should develop their own independence and just be themselves. Their personalities(个性) would be shown through their own clothes at school. And different dress could be one way of showing their understanding of beauty. Besides, they make the school lively and colourful. 

Patrick: I can see the advantages of wearing school uniforms. They play a very important role in managing schools. However, a school should not depend heavily on uniforms to improve students' behaviour. Teaching them how to express themselves with confidence is more important. 

Bill Smith is an 80-year-old man. He lives with his brother Bob Smith in Texas, America. In his free time, he likes making things and helping others. There are many stray (流浪的) dogs in the street, so Bill wants to help them.

The brothers find nine dogs. The dogs always have no food to eat, so they are not healthy. Then they let these nine dogs live with them and eat with them.

"Everyone needs a little fun in life. Stray dogs need it, too," Bill Smith says. "I think it must be very interesting for them to travel by train."

So Bill and his brother buy some old buckets(桶子)and make a dog train. It is very long. The dogs are happy to see the train, and Bill Smith takes them on trips by train every week.

"These dogs don't have families, but they are lucky to have a good time with us now. I'm very happy to be with them, too," Bill says.