instruct, virus, construction, contribute, positive, movement, backward, complete, enthusiastic, spin, reject, view, steam engine, put forward, draw a conclusion, in addition, link...to..., be strict with, lead to, make sense, point of view.

　　While practising using the language, the students will learn about Copernicus' Revolutionary Theory, and their skills of reading, speaking and writing will be improved.

　　In listening and speaking, more chances will be given to the students to learn about other scientists and their spirit. The students are encouraged to make up their mind to make contributions to science.

　　The students will be asked to write a letter to Copernicus on the basis of the understanding of the text. The letters are sure to be full of imagination and creativity.

　　Assessment will help the students to look back what they have learned and focus on the difficult and important points.

　　So, this unit will be divided into seven periods as follows: 

　　Period 1　Welcome to the Unit 

　　Period 2　Reading

　　Period 3　Listening and Speaking

　　Period 4　Reading and Writing

　　Period 5 Grammar

Period 6　Language Focusing