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

    Although Tokyo is one of the most expensive cities in the world, you will be surprised that there are still some free activities in Tokyo.

Free temples

    There are many temples in Tokyo. The most famous one is Meiji Jingu. This is the most important temple in Tokyo. If you visit it, you can know more about Japanese history. Of course, it's free.

Free museums

    If you go to Kanto Earthquake Museum, you can see the exhibitions and the memorial for the people who died in the 1923 earthquake disaster.

Free parks

    There are two famous parks in Japan. They are Yoyogi Park and Ueno Park. Yoyogi Park is one of the largest parks in Tokyo. It is now a great place to see street performances. Ueno Park is popular with many Japanese people and foreign visitors.

Free snacks

    Japanese food is delicious and healthy. You can try different kinds of snacks, before spending money on them. You don't need to pay for them when you try them.

    When people are driving, they like listening to music on the radio in the car. Music makes the ride interesting. {#blank#}1{#/blank#}

    There is a kind of wonderful road in Japan- melody road. {#blank#}2{#/blank#} When you drive on it, you can hear nice songs. There are three melody roads in Japan. {#blank#}3{#/blank#} When you drive on it, you can hear the song Memories of Summer. Lots of drivers like this road very much. {#blank#}4{#/blank#} Many people drive their cars to the road only because they want to listen to the nice song.

    {#blank#}5{#/blank#} The designer (设计者) of this road says, "You can hear the beautiful song best when your speed (速度) is 50 kilometers an hour".

    You either have it, or you don't—a sense of1that is. But2is it that some people could find their way across the Sahara without a map, while others can3themselves in the next street?

    Scientists say were all4with a sense of direction, but it is not properly understood how it works. One theory is that people with a good sense of direction have worked hard at5it. Research being carried out at Liverpool University supports this idea and suggests that if we don't use it, we lose it.

    Children as young as seven have the ability to find their way6,"says Jim Martland, Research Director of the project. "However,7they are not allowed out alone or are taken everywhere by car, they will8develop the skills. ”

    Jim Martland also emphasizes that young people should be taught certain9to improve their sense of direction. He makes the following suggestions:

    If you are using a map, turn it so that it10to the way you are facing

    If you leave your bike in a strange place, put it near11like a big stone or a tree. Note landmarks on the route as you go away from your bike. When you return, go back along the12route.

    Simplify the way of finding your direction by using lines such as streets in a town, streams, or walls in the countryside to guide you. 13your steps 14you know how far you have gone and note any landmarks such as tower blocks or hills which can help to find out were you are.

    Now you will never get lost15!

Think about the colors of fruit and vegetables: the red of tomatoes, the orange of carrots, and the purple of grapes.

You can eat fruit and vegetables of all colors—green, yellow, blue, purple and white. Each color is important to our health. These colors work together for our bodies.

Red gives us a healthy heart. Red helps improve our memory (记忆力). Yellow is good for our eyes. White can reduce (降低) cholesterol. Green is good for our eyes, too. It also gives us strong bones and teeth. Blue helps us keep a good memory as we grow old. It also helps our heart. So when you are buying or eating fruit and vegetables, remember to try fruit and vegetables of different colors.

What did people do to communicate in ancient times? Here are some very interesting answers to this question.

Alphorns（阿尔卑斯长号角） were once used to communicate in the mountains in Switzerland. They are very long and they are very heavy, too. So, alphorns are hard work to blow. Then why use them? Well, they make a loud sound which travels much further than the human voice. Herdsmen（牧民） used them to call cows in the distance for milking. At sunset, alphorns were also used to send a message down to villagers that all was well. These days, they're mostly used as musical instruments.

The people of La Gomera, an island in Europe, have their own special way of sending messages from mountain to mountain. They use a whistled（口哨） language called el silbo, which comes from their language Spanish. Whistling can be heard within five kilorneters, which means it can be used across much greater distances than shouting. El silbo can be used for all kinds of messages, including greetings and announcements. El silbo is used a lot less than it used to be, but primary school students in La Gomera have to leave it.

Did you know it 's also possible to send messages without making a noise? This is called visual communication, and it includes the use of flags and even smoke. Long ago, soldiers along the Great Wall of China used smoke as a warning. If they noticed the enemy from their signal（信号） tower, they lit a smoky fire. When soldiers in other towers saw the smoke signal, they lit fires, too. In this way, messages about the enemy's arrival could travel as far as 800 km in just a few hours.