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Ask and answer the questions to the text (work in pairs).
1. What specialists are involved in constructing and maintaining tunnel systems? 2. Are most tunnel jobs positions government or commercial? 3. What are the geologists and surveyors responsible for? 4. What obligations are imposed on civil engineers? 5. Who authorizes the design of a new tunnel? 6. What important tunnel jobs do explosive workers and blasters hold? 7. What do ironworkers do? 8. What kind of work do cement masons and rebar workers perform 9. What do specialists do for maintenance of roads or railways? 10. What does the Building reliable structure involve? 11. What hazards may cause accidents on construction site?
Exercises: Work on lexis. Choose the word combinations from A. and B. Some variants are possible. a watch, the machine during its operation, rocks and soil, reinforcement, the rail, a cable in ground, from solid granite, platform, a beam to the bridge, site, into a ball.
2) Read the text again. How many specialists are engaged in the tunnel construction process? What are their responsibilities at work? A. Match the jobs with the duties in the box.
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