The world is in danger. At one time there were 1,300 different plants, trees and flowers in Holland, but now only 860 remain(剩余). The others have been destroyed(破坏) by man. We are changing the earth, the air, the water and everything that grows and lives. We can't live without these things. If we continue doing like this, we will destroy ourselves.

    What will happen in the future? Perhaps it is more important to ask "What must we do now?" The people who will be living in the world of tomorrow are the young of today. A lot of them know that conservation(对自然环境的保护) is necessary. Many are helping to save our world. They plant trees and protect animals in forest. In a small town in the United States, a large group of volunteers cleaned the banks of their rivers. Young people may hear about conservation through a record called No One's Going to Change Our World. It was made by the Beatles, Cliff Richard and other singers. The money from it will help to protect wild animals.

More and more scientists are interested in learning about dinosaurs. They want to find out the reasons why dinosaurs died out.

Most scientists think that millions of years ago, dinosaurs lived on the earth happily and safely because the {#blank#}1{#/blank#} earth was warm and wet. At that time, there were rain forests everywhere. Dinosaurs could easily find enough food. About 95 million years ago, most of the earth became cold and dry because a little planet hit the earth heavily. As a result, almost all the forests {#blank#}2{#/blank#}. The dinosaurs couldn't find enough food, so most of them died.

However, other scientists don't think so. Some of them think fighting between the animals is the main {#blank#}3{#/blank#} for the dinosaurs' death. At that time, there were also many {#blank#}4{#/blank#} between dinosaurs. Another reason is that they think about 95 million years ago some new kinds of animals with big brains came to the earth and they killed many dinosaurs. Although these happened more than 100 million years ago, we can tell by the animals' {#blank#}5{#/blank#} they left.

Yu, 32,is a maker of automata（机关人偶）in Chengdu,Sichuan.Thanks to him,wood not only comes alive, it also tells wonderful stories.

Interested in handcrafts as a boy, Yu first learned about automata by Kazuaki at a show in 2015 when he studied at the Communication University of China in Beijing. As an art and design student, he began to learn the craft by himself, and with the help of his tutor Lu Ying, he kept studying and examining automata in school.

When he finished school in 2016, Yu got a job at an advertising（广告） company in Beijing. He stayed at the company for three years because, at that time, he was not sure that he could make a living out of his hobby. Finally, in 2019, Yu quit（辞职） his job and returned to Chengdu to open his automata workshop. His hobby has become a career（事业）.

"A fascinating thing about automata is that they interest people of all ages. Adults see them as art, while children see them as toys to be played with,"Yu said, smiling.

Yu knows that there are many more creative ideas waiting to be shown."It feels quite good to pay attention to automata and I am still searching for myself."

I often hear some students say English is difficult and gives them a headache. So they can't learn it well. But English is very easy for me. {#blank#}1{#/blank#} I'm very glad to tell you something about how I study English. 

{#blank#}2{#/blank#} When I was in Grade Three, we had a new subject— English. It was new to me. I was interested in it, so I worked hard at it. Soon we had an English exam and I got a very good mark. How happy I was!{#blank#}3{#/blank#} Our English teacher often teaches us English songs, and the songs sound nice. I often think how interesting English is!

Second, as English is a foreign language, I learn it well in the following ways:{#blank#}4{#/blank#}Then practise again and again, and never be tired.{#blank#}5{#/blank#} Whenever I have a question, I must make it clear by asking our English teacher. How happy I am when I understand it!