"Dinosaurs Flying into the Blue Sky" is a popular science article written by Xu Xing. The article mainly introduces to people a hypothesis put forward by scientists based on research: Birds are likely to be descendants of small dinosaurs. Descendants. At the end of the 20th century, Chinese scientists discovered dinosaur fossils with feather impressions for the first time in western Liaoning.

It provides evidence for people to imagine the evolutionary process of dinosaurs flying into the blue sky and transforming into birds. The article not only reveals the major discoveries made by scientists in paleontology research, but also opens a scientific door to students to explore paleontology, arousing their strong interest in science. This article is included in the Chinese Lesson 31 of the first volume of the fourth grade of the People's Education Curriculum. The reader is Lu Yang.

The text is titled "Dinosaurs Flying into the Blue Sky", which breaks people's inherent impressions of dinosaurs and is quite attractive. The article begins with vivid and vivid language, showing readers the heavy, slow dinosaurs and the light and agile birds - two animals that seem to have nothing to do with each other in people's minds.

Tell us: During the Mesozoic Era, a branch of dinosaurs evolved into a soaring bird after a long evolution, and then introduced the general process of this scientific discovery. At the end of the text, the scientists expressed their best wishes: they hope to find more and more sufficient evidence to recreate the historical process of dinosaurs flying into the blue sky.

The third and fourth paragraphs of the text are the key paragraphs of the whole text. The third natural paragraph follows the reader's reading ideas, asking "How did dinosaurs fly into the blue sky", which naturally leads to the following, directing our attention to the Mesozoic Era, reproducing the transformation of dinosaurs into birds before our eyes. The evolution process of the class.

This process is in chronological order. It first talks about the size, shape, and walking style of the first dinosaur 230 million years ago; then it introduces its descendants after tens of millions of years. Reproductive changes and different forms; due to changes in their body shape, body surface, living habits, etc., a predatory dinosaur eventually became the favored one and flew into the blue sky.