When we use the word（）we mean that an idea or theory is being applied: that whatever the teacher does, certain theoretical principles are always borne in mind.

（） provides the head or pressure to supply the domestic water where required.

Every act of assistance or salvage，which has had a useful result，should give a right to （）remuneration.

Ships carrying 15 or more seafarers and engaged in a voyage of more than three day’s duration shall provide separate hospital accommodation to be used（）.

The SMS should provide for specific measures aimed at promoting the（）of equipment or systems the sudden operational failure of which may result in hazardous situations.

Practice 4　　You should spend about 40 minutes on this task.　　Write about the following topic:　　Money for postgraduate research is limited. Therefore some people think that financial support from governments should only be provided for scientific research rather than research for less useful subjects. Do you agree or disagree?　　You should write at least 250 words.

（）will normally provide sufficient information to seaward of fairway buoy or pilot station.

What should be used to steer an open lifeboat if the rudder becomes lost or damaged?（）

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

The （） is used for hauling in or letting out the wires or ropes.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.