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

    It may be difficult to start high school. Thinking about making new friends might make you feel nervous.{#blank#}1{#/blank#}You are going to school with a group of students of your age. Here are several suggestions for you to follow.

    Forget your fear and just talk to someone. It's easier said than done. But try to take a deep breath and find your voice. Don't be afraid to approach (接近) people.{#blank#}2{#/blank#}Sit in the middle of the classroom with as many new friends around you as possible.

    {#blank#}3{#/blank#}Take part in after-class activities that interest you. Try to make friends in the clubs. If you don't join anything, you will be just going to class and then going home. Being in a club makes you more social.

    Stay clean. No one likes a bad smell that could knock someone over. Shower every day, brush your teeth and wash your hair.{#blank#}4{#/blank#}

    Be respectful (尊重的) of people's differences.{#blank#}5{#/blank#}And everyone believes in different things. It is a good thing to have different friends with different opinions because you can each share your own.

    When the weather is hot, you go to a lake or an ocean. When you are near a lake or an Ocean, you feel cool. Why? The sun makes the earth hot, but it cannot make the water very hot. Although the air over the earth becomes hot, the air over the water is still cool. The hot air over the earth goes up. Then the cool air over the water moves in and takes the place of the hot air.

    Then you may ask, "Why is the ocean full of salt?" Scientists will say that the salt comes from the rocks. When the rocks get very hot or very cold, they crack (爆裂). Rain falls into the cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. And then you may doubt, "But the ocean does not get more salty every year. Scientists are not sure about the answer to this question.

    We know a lot about our world. But there are still many answers that we do not have, and we are curious about them.

    Being street smart is an important skill to have and a good way to take care of yourself.

    Always carry your phone with you, but do not look at 1 while you are walking. Being able to communicate or call for help is important, so keep a list of useful numbers. But put your phone away while you are walking so that you can keep your 2 up and see what's going on around. If you do need to check your phone, 3 and look at it quickly.

    Don't wear earphones 4 you are out. If you have to 5 something when you're out, use only one earphone or play it at a very low volume(音量).

    Travel with 6 or family members when possible and never go anywhere with a stranger. It's 7 to be careful with strangers. Remember not to get into a stranger's car if they call you over.

   8 dark and out-of-the-way places. Do not take short cuts through dark areas, even if it will make your trip much faster. If you have to go to unsafe places, go 9 someone you know or speak to someone over the phone while you are there.

    Run and shout if you feel unsafe. Run away as fast as you can towards a police station, hospital, or nearby business for 10. Shout as loudly as you can to get the attention of people nearby.

Every year, wildfires destroy millions of hectares of forest land. Homes are damaged, and thousands of people die. Smokejumpers help to stop this. 

Smokejumpers are a special type of firefighter. They jump from planes or are lowered by helicopters into areas that are 1 to reach by car or on foot, such as the middle of a mountain forest. They race to put out fires as fast as they can. 

At a fire site, smokejumpers first examine the land and decide 2 to fight the fire. Their main goal is to stop a fire from spreading or to slow its progress  3 ground—based firefighters arrive. Using basic equipment such as shovels (铲子) and axes(斧头), smokejumpers clear land of burnable material, like dry grass and dead trees. They carry water with them, too, but only a limited amount. 

Most smokejumpers are men. The most important factors are your height and  4 .Smokejumpers employed in the United States must be between 54 and 91 kilograms so they don't get blown away by the strong winds or get 5 when they land. 

The work is dangerous, and the hours are long. But for these firefighters, smoke jumping isn't just a job. They6 being able to jump out of planes, fight fires, and live in the forest. As 28-year-old Russian smokejumper Alexi says, "This is the best job for tough guys. "

Are you interested in robots? If so, try out robot Little Q at our science center from August Ist to August 6th. Little Q is a cute robot with a round head, two big eyes and two long legs. It's like a big toy that our children will love.