Exercise 1.Divide thetext intothree logical parts: an introductory part and three information ones. Entitle each of them.
Exercise 2.State what advances facilitated working with concrete in high-rise construction.
Exercise 3.Answer the questions to the second part of the text.
1. What are the materials for making formwork?
2. What are the main types of concrete formwork?
3. Characterize each type of formwork and state the difference between them.
Exercise 4.From the third part of the text copy out the names of all mechanisms used for delivering concrete to the construction site and mixing it.
Exercise 5.Use the information of the fourth part to speak on the technology of concrete placement in large quantities at high elevations until and after the 1960s. Make use of such key words and word combinations: hydraulically powered and controlled pumps; mounted on a truck; concrete pumping; type of pump; piping; high-pressure unit.
Exercise 6.Make up a short summary of the text.