AFTER-TEXT EXERCISES 1.Answer the following questions:
What is the name of the industry processing the natural compounds of silicon?
What materials are used for making silicate bricks?
What are the initial materials for getting glass?
How do we get concrete?
What is the difference between cement and concrete?
2.Read and translate the following word combinations into Russian:
natural compounds of silicon; production of cement; coefficient of thermal expansion; bath-shaped furnace; property of glass; to retain the shape; binding material
3.Finish the sentences:
1. When cement is mixed with water, it…
2. The materials used to make silicate bricks are…
3. Cement is used widely as…
4. The initial materials for the production of ordinary glass are mainly…
5. When these articles are dried and then baked, that is, ignited at a high temperature, they become…