1 Lesson One------Introduction of Curtain Wall Ⅰ Introduction （技术简介） Once we mention curtain wall, we will think of ①those transparent glass buildings in big cities. It even has become the proof of companies’ strength, the symbol of a city, the reflection of human advancement and the mark of the times. Curtain wall industry has begun since 1978, and after twenty years development, China has become the largest curtain wall producing and using country. In order to understand curtain wall, we should first know some basic knowledge about the Wall. In a building there are many walls that can be divided into② main walls and non-main walls that include partitions, complementary walls and curtain walls. The partitions are used for comparting the internal space of a room, and their weight is burdened by the floor or by the beam. Those walls filled between columns of the building are called complementary walls, and those hung among or in the surface of the outer-framework of the building are called curtain wall. II Conversation （会话） Welcome to Yuan Da exhibition hall. It is my honor to introduce our products to you. After my introduction, you can look around③ in the hall. If you have any questions, please don’t hesitate to ask me. M―manufacturer, C―customer C: I’m still a little bit④ confused about curtain wall, would you please tell me something more about it? M: Yes! Curtain wall is made up of supporting structure and panel, which is moveable from the main structure and can share load and effects applied upon the building. It is an envelope or decoration for the building. 2 C: Compared with⑤ the traditional wall made of bricks and concrete, what features does curtain wall...
