Sending packets, shopping for everyday goods and even building a house, these are new skills that new robots show at the World Robot Exhibition.

    Here I want to tell you some informationabout water.

    Water covers most of our planet. People canfind it in oceans, lakes and rivers, and under the ground. Water moves in theenvironment by evaporation, condensation, and precipitation. The warm Sun helpswater change into vapour and rise up into the sky. It is evaporation. Thevapour in the air forms clouds in the sky. It is condensation. When the cloudsget heavy enough, the water falls back to the ground as rain or snow. This isprecipitation.

    Ocean water has too much salt in it. Muchof the water travels far over the land. When it travels over the land, thewater picks up salt from the rocks and soil. About 97.5% of the Earth's wateris salty water. It is expensive to take salt out of the water.

    All people need clean water. They need itfor drinking, for cooking, and for bathing. Some people in a village in SouthAmerica did not have clean water. Their water was full of oil and dirty things.People there got sick when they drank the water. Other people heard about theproblem. They sent empty water tanks (储水池) tothe village. Rainwater fell into the tanks. Now the people in that village havethe clean water.

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Future astronauts could travel with emotional support robots

    To help astronauts of the future survive (幸免于) the mental (精神的) challenges that come with staying in space for quite a long time, space travelers‟ tasks could soon be accompanied(陪伴) by AI-powered, empathetic (有同理心的, 同感的) robotic helpers.

    Not only does space travel present astronauts with lots of physical stresses, spending months or years in such a physically demanding (要求高的) place with limited space and the same people can also raise many mental tests as well. According to MIT Technology Review, scientists are working to alleviate astronauts from some of the latter challenges by creating "an AI assistant that's able to feel human emotion and respond (做出反应) with empathy."

    While such a technology would prove itself useful by being able to predict the needs of the

crew members in space and "intervene (干预) if their mental health is in danger," it has the potential to be life-saving when humans choose to explore beyond Earth's gravitational field (引力场) and towards deep space.

    Though astronauts currently on the International Space Station have an intelligent robot to interact with called CIMON, it is short of proper emotional intelligence according to NASA CTO Tom Soderstrom. As a result, a team at the organization's Jet Propulsion Laboratory is working on a more complex (复杂的) emotional support companion that can control a spacecraft's functioning in addition to tracking the crew members‟ behaviours.

    Right now in the lab, an AI-equipped robot called Henry the Helper can be found walking around the grounds assisting visitors who appear confused or lost based on their facial expression. Two more emotionally intelligent robots are expected to be introduced later this year, one of which is said to be able to take part in conversations more complex than giving navigation(导航) assistance.

    The team's final goal is to make a companion named Fiona the Future a reality, an emotionally intelligent cross-platform system. Fiona, if all goes according to the JPL's plans, will help keep astronauts of the future stay mentally fit as they start their journeys to deep space.

I'm forty. I left school 22 years ago. I don't regret many things about my school days but there are a few things I wish I'd known earlier as a girl. So here is my list of three things I'd learned at school.

□As a young child you try many new things. If you fail, you try again until you learn. Then you start school where you are usually only praised for doing things correctly. So what happens? You stop trying new things in case you get it wrong. I always remind myself: I won't give up halfway until I make it.

□I always wanted to be the best and one way of feeling good about myself was to see how much better I was than others. There was only one problem with this. When I saw they were better than me, I felt terrible. Now I compare me with myself. I asked myself if I did things as well as I could.

□How much time do you spend worrying about the future? I used to worry a lot. Now I know most things you fear usually never happen. If they happen, then they will most often not be as bad as you expected. In 6 months you probably won't remember most of the things you worry about now.

A Kind Grandmother

Mrs. Wallace had two grandchildren. They lived near her house. They visited her house every day after school.

She was very good at making things. One day she made some beautiful

dolls and gave them to her grandchildren to play with.

The grandchildren wanted some pet rabbits, and Mrs. Wallace said she

could make a hutch to keep them in. The children went to ask their parents.

"Can we please have some pet rabbits?" they asked.

"Where will you keep them?" their father asked. "You need a hutch for them."

"Grandma will make a hutch for them," the children said.

The father and mother talked about it. They told the children they could have two rabbits. But they must put them in the hutch.

Mrs. Wallace went to a shop and bought wood, paint and nails (钉子). She worked all daywhen the children were at school. After school they came to watch and help.

The next day Mrs. Wallace finished (完成) the hutch and painted it. Then she thought about how to get it to the children. It was too big to put into her car.

"I know," she thought. "I'll put it on the wheelbarrow(手推车) and wheel it there. It's not far."

On the way to the children's house, aman saw her and said. "That's very nice. Did you make it yourself?"

"Yes," she said happily." I made it for my grandchildren." "Really?" he said. "I thought it was for rabbits!

Nina felt nervous this morning. She couldn't believe that she decided to tryout for a talent show. She loved to sing but she disliked singing in front of other people. 

Taking a deep breath, she pushed open the door of the theater and went inside. 

The room was filled with laughing children. Nina saw Luz, James and others from her class. The bright, sunny room left her no place to hide. A few teachers sat on chairs. They waited for the children to become quiet. 

"Hi, Nina!" Luz called out. "I didn't think you would tryout. You are so timid(胆怯的) in front of people. "

"That's not true, " Nina said. "I'm not shy at all. "

"Yeah, right, " Luz chuckled(轻声地笑) and ran off to find a seat. 

One by one the students got up on the stage(舞台) and did their acts. 

"Nina Martinez!" a voice called out. It was Mrs. Brent, the music teacher. Nina rose from her chair. She felt small as she walked to the huge, empty stage. Her face was hot and her shaking hands were as cold as ice. 

"I-I-" Nina began, and then stopped. "I can't, " she said softly. 

"Close your eyes, " said Mrs. Brent gently. "Forget about everyone else. Just sing. "

Nina felt silly, but she gave it a try. She closed her eyes and raised her voice and sang out. Her hands stopped shaking. 

The song was so nice that everybody enjoyed it. 

Nina heard Mrs. Brent clap (鼓掌) loudly at the end of her song. "That's the first time I have really heard your voice, " she said. "You are in the show!"

Nina let out a big sigh(叹息) and smiled happily.