Exercise 28. Write if these statements are true or false

Exercise 27. Answer the questions.

Exercise 26. Complete the sentences.

LISTENING COMPREHENSION EXERCISES

Exercise 24. Correct the mistakes.

Exercise 23. Make the sentences passive.

Exercise 22. Put disjunctive questions to the sentences.

1. Ladders made of heat-treated aluminum alloy permit a reliable visual inspection of all ladder parts. 2. The firefighter wiped the ladder dry. 3. They are standing on the ladder for roof work. 4. He was not sleeping when I came in. 5. Regular and systematic inspections will help to find damaged and weakened portions of ladders. 6. I am leaving for Odessa tomorrow. 7. Your friends are not going to help you. 8. Fire service ladders are used for saving people and extinguishing fires. 9. This ladder has adequate strength. 10. They didn’t brush the dirt and dust from the ladder.

1. At present mankind is making considerable investments to eliminate air pollution. 2. Many scientists are constantly carrying out experimental work to solve the problem of environmental protection. 3. The company was making plans for the future. 4. They will construct ladders under rigid specifications. 5. Firefighters use many tools and devices. 6. They designed the roof ladder for one specific purpose. 7. They were cleaning the ladder. 8. Straight ladders provide access to windows and roofs of one and two-storeyed buildings. 9. They found damaged portions of the ladder. 10. I saw him at the fire scene.

1. Aluminum are good conductor of electricity. 2. They is using solvent cleaners now. 3. Aluminum become very cold in winter and noticeably hot in summer. 4. Aerial ladder were trussed to provide adequate strength. 5. He is inspect the ladder now. 6. They will standing on the ladder for roof work. 7. Extension ladders are more heavy than straight ladders. 8. He rescue two people yesterday. 9. We doesn’t use this type of ladder. 10. Metal fire service ladders are build of heat-treated alloy.

Exercise 25. Listen to the text “Turntable ladders”.

1. Turntable ladders are constructed of ….

a) metal; b) wood; c) plastic.

2. The weight of turntable ladder is ….

a) fifteen tons; b) four tons; c) fourteen tons.

3. The turntable ladder can reach up to … in height.

a) thirteen meters; b) thirty meters; c) thirty-three meters.

4. The crew of … people operates the turntable ladder.

a) two; b) three; c) four.

5. The usual width of the ladder is ….

a) 2,5 meters; b) 2,4 meters; c) 4,2 meters.

1. What are turntable ladders used for?

2. What is the length of the ladder?

3. Why do firefighters work in pairs?

4. What is a tower ladder?

5. How is turntable ladder sometimes called?

1. Modern turntable ladders are hydraulic or pneumatic in operation.

2. There are no turntable ladders longer than 100 feet.

3. Turntable ladders are used to get access to fires occurring at height.

4. In order to increase its length the ladder is telescopic.

5. The monitor can pump up to 1,500 liters of water per minute down or up.

Дата добавления: 2014-12-29