Once upon a time, there lived a very rich and wealthy man in a big town. He led a luxurious life. He always showed off his wealth to his friends and relatives.

    His son was studying in a distant city and he returned home for vacation. The rich man wanted to show off to his son how rich he was. But his son didn't like any luxurious lifestyle. However, the rich man wanted to make his son realize that his lifestyle was extremely rich and that poor people suffered a lot. He planned a day's visit to the entire town to show him the life of the poor people.

    The father and the son took a chariot and visited the entire town. They returned home after two days. The father was happy that his son was very quiet after seeing the poor people honoring（尊敬） the rich man and after witnessing the sufferings of the poor.

    The rich man asked his son, "Dear boy, how was the trip? Have you enjoyed it?"

    "Yes my dad, it was a great trip with you," the son replied.

    "So, what did you learn from the trip?" the father asked.

    The son was silent.

    "Finally you have realized how the poor suffer and how they actually live," said the father.

    "No father," replied the son. He added, "We have only two dogs, they have 10 dogs. We have a big pool in our garden, but they have a large bay（港湾） without any end! We have luxurious and expensive lights from various countries, but they have countless stars lighting their nights. We have a house on a small piece of land, but they have abundant fields that go beyond the horizon（视野）. We are protected by huge and strong walls around our property（财产）, but they bond with（与……连着） each other and surround themselves with their fellow beings. We have to buy food from them, but they are so rich that they can grow their own food."

    The rich father was stunned and speechless, on hearing his son's words.

    Finally the son added, "Dad, thank you so much for showing me who is rich and who is poor. Thank you for letting me understand how poor we really are!"

It seems that paleontology（古生物学） has nothing to do with fun. However，some online videos about it have become popular with young people. These videos are made by Fun Stuff，a science account（账户） on Bilibili. It has posted about 150 videos and most of them are for free. And these videos have been watched over 100 million times. 

The makers behind Fun Stuff are Tang Cheng and Cai Chunlin. They're a couple（夫妇） at the same university. Both of them studied science very hard and always discussed questions about science together. 

It all started on a small island in 2014，when Tang studied monkeys there. At the time，he started giving online classes to children. After one class，a student asked him what a cell（细胞） is. Then he decided to make more people fall in love with science. 

In 2018，Tang and Cai began to play some English science videos and share them on Bilibili. The next year，they began to make their own videos. They spent two months on their first video. It is about an amazing animal living in ancient times. In the video，Tang talks about the animal's look and habits and why it died out. The special and clear way to tell scientific facts soon made the video very popular. Since then，the couple has made lots of videos about ancient animals. 

"Fun Stuff has the interesting way to make science about the ancient world very interesting，" says a fan. 

Chinese students thank their teachers on September 10th, Teachers' Day. How do American students thank their teachers?

First of all, US schools thank their teachers the whole first week in May. Their special Teachers' Day falls on the Tuesday of that week. During the week, the school will have special parties and give teachers gifts. There are "Thank you" signs everywhere to thank teachers.

US students give small gifts to their teachers to let them know how great they are. It could be a simple gift like a thank-you card with a personal message. US teachers love it because they think it's meaningful. They like it even more when students say "thank you" directly (直接地) to them. US teachers like getting arts and crafts (手工艺品) from children best. Little things to decorate (装饰) their classroom are also common gifts in the US. This could be a small plant.

It doesn't take much to celebrate a Teachers' Day. But students shouldn't just wait until Teachers' Day. 他们应该一直都感谢他们的老师。

 My name is Mary. I'm a student. I have a good 1 . Her name is Nancy. I go to school and have 2 with her.

 In my school, many students have lunch in the school dining hall. Nancy and I eat there 3 . Today we have beef noodles for lunch. There are some 4 and carrots in the noodles. I say to Nancy, "The beef noodles are 5 and I like them. But I don't like carrots. Do you like them?"

"Yes, I do, "says Nancy. "But I don't like potatoes. "

"You can eat my carrots and I can eat 6 potatoes. "

"That's a good 7 !"Nancy says.

 After that, we exchange(交换) our vegetables.

"It's important for us to eat many kinds of vegetables. They are good for our health, " Nancy says. "How 8 this? I try to eat potatoes and you try to 9 some carrots. "

"OK, "I say. I know Nancy is right,10 we exchange our vegetables again. It's great and fun.

There is a popular (受欢迎的) club at Sunshine Middle School. It's the Cooking Club. Students call it the "fun club". More and more students spend their Tuesday afternoons at the club. 

Many parents don't think cooking skills are important. They don't let their children cook at home. In fact, the kitchen is a learning lab for students. Joining the Cooking Club is a good way for them to learn different skills and feel good. 

First, students can learn how to cook. When their parents are not at home, they can take care of themselves. 

Second, students can take their food home and share it with their family. They will have a sense of achievement. 

Third, the teachers in the club teach students not only how to cook but also the science behind the food they eat. They will learn a lot about how to eat healthily. 

Last, students can practise basic Maths skills like counting and measuring, they also learn social (社交的) skills by working together and making friends.