Today, nearly five hundred weather stations in sixty countries receive satellite pictures.  When they receive new pictures, the meteorologists compare（比较）them with earlier ones.  Perhaps they may find that the clouds have changed during the last few hours.  This may mean that the weather on the ground may soon change, too.  In their next weather forecast, the meteorologists can say this.
　 So the weather satellites are a great help to the meteorologists.  Before satellites were invented, the scientists could forecast the weather for about 24 or 48 hours.  Now they can make good forecasts for three or five days.  Soon, perhaps, they may be able to forecast the weather for a week or more ahead（提前）.

2023 is a breakout year for Al. It is changing how we live in every way. For example, there is an Al restaurant in Shanghai. Let's see what it is like.

The Al restaurant, located in the Hongqiao Area, covers about 130 square meters. It can serve about 300 people every day, most of whom are old people living nearby or office workers in the area. 

At the restaurant, people need to order food on a screen. For those who are not sure what to eat, the restaurant's robots can give advice. Then. the robots cook the dishes according to the order. They can make different kinds of Chinese dishes. like gongbao chicken and mapo toufu. What's more. the robots can control (控制) the temperature for dine-in or take-away food to keep the dishes warm. At the self-service area, people simply need to place their dishes on. a smart cash desk and the robots will tell them the price of the meal. People can pay in different ways, like asking bank cards or QR codes (二维码). The prices of the food at the AI restaurant are pretty low. Every meat dish costs only 8 yuan while every vegetable dish costs only 3. 5 yuan.

"The meals cooked by robots taste as good as those cooked by humans. It is cheap and convenient (方便的) for us to eat in the Al restaurant," said-an old man.

Would you like to have a meal in such a smart restaurant? How could AI help people next? Let's wait and see.

Do you like traveling? Have you heard of the volunteer travel? Do you know what the volunteer travel means?

The main purpose of the volunteer travel is to take part in service activities to help others. During the trip, volunteer travelers often provide service like teaching, cooking and animal caring. The volunteers may get free or discounted accommodation (住宿折扣), meals and laundry(洗衣), activities, or classes because of their help.

It seems that these long journeys could only be made possible in recent years by modern transport. However, the volunteer travel dates back to the 1960s, when Alec Dickson and his wife Mora from the UK founded Voluntary Service Overseas (VSO), an international volunteer organization.

Traditionally, the volunteer activities take place in a foreign country. But now, more volunteer trips have taken place within the volunteers' own countries in recent years. Volunteer projects in the countryside are now attracting more visitors living in the cities as a break from the fast and stressful city lives.

    ▲  By doing voluntary work while traveling, travelers may have a real and positive influence on the world. The service volunteers provide can reduce the costs for the communities they serve. Another advantage of volunteer travel is that it helps people living in cities experience the lives in the countryside. For those who are tired of city lives but can't move to the countryside, volunteer travel can be a way. In this way, travelers can relax themselves from their busy lives, while the countryside can get a lot by receiving more customers for local tourism industries.

There are many different kinds of jobs around the world. Many of the students have different ideas about their dream jobs in the future.

My name is Yu Sheng. I'm a reporter from the magazine- People's Life in Town. Last Monday afternoon,1 did a survey of the students in Grade 9 in Beijing Junior High School. There are 50 students in the class. And I found some popular jobs that they like. Here is the result.

The engineer is the most popular job. 20% of them want to work as engineers in the future. Nine students would like to be doctors because they want to help people be healthy. Eight of them want to be teachers when they grow up. Five of them are over 180 cm, so they want to be basketball players. Three of them want to be singers and actors. Four of them think they like to be computer programmers and three of them like to be cooks. The others. don't mind what to be.

No matter(无论) what you want to be in the future, study hard from now on.

 In nature, you may see many insects and animals of different colors. For example, have you ever wondered why locusts(蝗虫) are super hard for birds to catch? It is neither because locusts are good jumpers or runners nor because they are smarter than their enemies(敌人) . Actually, the reason is that the colors of locusts change with the colors of crops. When crops are young, locusts look green. But when autumn comes, locusts change to the yellow and brown color as crops do.

 Brown bears, tigers and other animals move quietly through forests. They can't be seen easily by their enemies. This is because they have colors similar to the trees. For the same reason, polar bears that live on a land of snow and ice are white. Butterflies and bees living among the flowers are colorful like flowers. Soil (土壤) insects are mostly dark- colored and they live under the soil in a dark and wet environment. However, insects with colors different from plants can easily be found and eaten by others. So in order to survive, they have to hide themselves in the daytime and appear only at night.

 The ink fish in the sea can send out some black ink when it faces danger. As the ink spreads over, its enemies will find themselves suddenly in a dark world. At the same time, the ink fish immediately swims away. That is how it keeps itself safe.

National Eye Health Day falls on June 6th every year in China. {#blank#}1{#/blank#}

Why are eyes so amazing?

{#blank#}2{#/blank#} They work hard every day, doing homework, watching television and playing sports. Eyes have been called"windows to the soul(心灵)". For example, they might look big and shiny when we' re happy to see someone. {#blank#}3{#/blank#}

How do eyes work?

 The eyes work by seeing light and then helping the brain turn this light into pictures. {#blank#}4{#/blank#} Dr Cheri Wiggs says that every night we experience a step of sleep called rapid(快速) eye movement(REM), which happens usually when we dream. Even though our eyelids(眼皮) are closed, our eyes are moving back and forth, up and down.

How can we take care of eyes?

 Starting with a healthy eating habit is important. {#blank#}5{#/blank#} Green vegetables such as spinach, and fish like salmon are good for eyesight. If we spend a long time watching films or playing video games, take breaks every 20 minutes to give our eyes a rest.