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Exercises
I. Answer the following questions:

1. What main dangers to navigation do you know?
2. In which way are the dangers to navigation marked?
3. What do we call drying rock?
4. What do we call an under water rock?
5. What do we call a rock which is almost awash?
6. Explain the expression: "A shoal lying close to the
shore always breaks".
7. What do we call a shoal lying separately from the shore?
8. What guides help a navigator to avoid the dangers?
9. Why fog may be a great danger to navigation?
10. Describe the role of the Rule No.10 "Traffic separation
schemes" in the International Regulations for Preventing
Collisions at Sea.

II. Change into Passive:

1. We cannot depend on the buoy.
2. You cannot rely upon this signal.
3. They signalled for the pilot.
4. We asked for two strong tugboats.
5. All of us looked at the ship with admiration.

III. Give synonyms of:

Shore, height, building, ridge, almost, several, creek,
space, flat.

IV. Give opposites of:

Westward, southernmost, narrow, to increase, with, large,
low, long, little, outside, above, above water rocks.