Earth Day is on April 22^nd. People say thanks to the Earth and learn ways to keep the Earth safe and clean. But saying the Earth is not just for grow-ups. Kids are also taking an active part in it.

    The American writer and filmmaker Lynne made a film called Young Voices for the Planet. It lists a lot of stories about different kids who help to keep our environment clean.

Team Marine, US

A group of students an Santa Monica High School started an organization called Team Marine. They tell people why plastic bags are bad for sea animals and environment. In 2011, they successfully made lawmakers(立法者) in their city stop people using plastic bags.

Felix, 15 Germany 

   In 2007, a 9-year-old boy, Felix, started a club. Plant for the Planet. It encourages children around the world to plant trees in their own countries. Felix helped plant 25 million trees in Germany and 120 million trees worldwide.

Alec, 17, US 

    When he was 12, Alec set up Kids VS Global(全球的) Warming. It teaches kid about weather change and ways to stop the world getting warmer and warmer. Alec travels widely to encourage people to help stop global warming. He has given more than 70 talks across the country.   

Olivia, 13, US 

    When Olivia was 11, she heard about the 2010 oil spill(漏油) in gulf of Mexico. She painted 500 pictures of birds to raise money for the clean-up. She raised more than $200,000 to protect(保护) birds and other wild animals.

    What will the world be like if cars can drive themselves? Imagine seeing an empty car passing by on its way to pick up its owner or a car full of passengers who are reading, listening to music or even sleeping. The passengers in the car needn't worry about the road ahead.

    Well, all of this could be the future of driving. There are several companies, including Google, Tesla, Mercedes-Bens, Audi, BMW, Volvo and Toyota, working on driverless cars. They are now in the testing stages (阶段). If the tests are successful, these self-driving cars could be available very soon. But how is it possible for a car to drive itself?

    Modern cars are able to take the place of drivers during certain situations. For example, they can park themselves or slow down when they detect (发现) objects nearby. They can also control the speed if there are dangerous condi-tions, such as snowy roads. Scientists and engineers believe that, with the help of wireless signals (无线),cameras and GPS, creating a safe self-driving car might be possible in ten to twenty years.

    Self-driving cars may help cut down the number of serious accidents caused by careless drivers or dangerous condi-tions. However, there are still some people who do not like the idea. American lawyer, White Drake, for example, doesn't believe these cars are safe. He thinks the possibility of the technology making a mistake will be too high.

Many parents like twins(双胞胎) a lot. For many years, people think that twins have a secret language. A lot of parents of twins say that their children have a secret way of talking to each other by using some words they don't understand. "The twin language" was very special in people's minds for a long time. However, a study shows that twins hardly have secret languages. So why do people think that?

When babies are learning to speak, they often make sounds and their parents don't understand them. For example, a child may call a bottle "baba". Since twins are learning the language at the same time, they often make the same mistakes. So, if one of the twins calls a bottle"baba", the other possibly starts to do the same. Soon, the twins are using the same inaccurate word. Parents may think of this as a secret language. In fact, the twins are learning new words like any other child.

A study shows that true secret languages don't happen very often. It happens because babies spend a lot of time alone and don't have many people talking around them.

Some studies show that it often takes longer for twins to begin speaking than for non-twin children. This could be because parents of twins can be busier than parents with just one baby, so they don't have much time to spend with their twin babies. Because twins understand each other's language mistakes, it may take them longer to learn words right.

As twins get older, like many non-twin children, they may make secret words for things they don't want their parents to understand!

Do you feel lonely when your best friend isn't around? Here's our advice to you — and to all kids who feel lonely sometimes.

It's hard when a best friend isn't around — maybe because he or she moved to a different school or a different class. You may feel left out during breaks or lunchtime. You want to make new friends, but how do you find them? Maybe it seems like everybody else already has friends. But remember, there's always room for more friends.

Start by looking around your classroom — think about which kids you'd like to play with during breaks.! Look for chances to say hi to them, smile, and be friendly. Offer to share something or express your appreciation(欣赏)to them. Invite someone to play with you or say "Do you want to sit here?" in the lunchroom. When you're at a break, walk over to kids you want to play with, act in a friendly way, and say "Hi, may I join you?"or just join in.

If you have trouble doing this or if you're feeling shy, ask your teacher to help you make new friends. Teachers are usually pretty good at matching people up. The best way to make

friends is to be a friend. Being kind, being friendly, sharing, saying nice things, offering help — pretty soon, you'll have one, two or even more new friends.

You might still miss that special best friend. But when you see each other again, you can share something you didn't have before he or she left. You can introduce him or her to your new friends!

In China，there are many different kinds of food.Some of them are very popular.Dumplings are the real Chinese food.Now let's talk about them，OK？

Everyone in China likes dumplings very much，and there are many different kinds of dumpling—s.Some have meat and vegetables in them，others have sugar（糖）

Usually people make dumplings at home.If you have no time to make them，you can buy them in any supermarkets.Then you take them home and eat them with vinegar（醋）.

The Spring Festival is very important in China.When it comes，we make dumplings，usually we put a coin（硬币），he will be lucky in the year.

Now tell me，do you like dumplings？

Welcome to China，we'll ask you to eat the real Chinese food：dumplings.

Hi，I'm Helen. I am a Canadian girl. They are my grandparents. They are kind. My grandfather is 70 and my grandmother is 66. They have two sons and a daughter. My father is their first son. His name is Mike. He is a teacher. My mother's name is Sally. Bob is my uncle. Emma is my aunt. My uncle has a daughter. Her name is Alice. She is my cousin. My aunt has a daughter and a son. They are Kim and Tony. I like Kim. She is my good friend. She likes green very much，but I like yellow. We are in the same school. I like my family!