Example sentences of "it [is] essential [conj] [noun sg] " in BNC.

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1 As it is estimated that 25 per cent of schoolchildren will have a sight problem that needs attention ( Optical Information Council ) it is essential that vision screening procedures should be effective .
2 It is essential that back-up copies of computer programs are made .
3 4.11 If it is essential that money be delivered to clients in their own homes , this must be sanctioned by the line manager and , where possible , should not be done at the same time each week .
4 Thus , tourism and conservation are closely interlinked and , as Farrell and McLellan ( 1987 ) point out , it is essential that tourism and its policy-makers should take account of the sustainability concept which , while being particularly relevant to agricultural development and forestry practices , is equally important in the context of tourism .
5 The power supply for the ventilation system introduces another factor , since it is essential that emergency power to other functions in the accommodation should not be jeopardised .
6 It is essential that development of the Single Market does not compound regional inequalities , causing massive emigration from poorer regions and inefficient ‘ overheating ’ in richer regions .
7 It is essential that assessment in a Catholic school should be compassionate .
8 It is essential that management reward rather than punish the risk taking required in abandoning the old and trying the new .
9 It must be emphasised , therefore , that it is essential that management monitor and frequently check the competence of their surveying staff , the methods of measurement used , and that sub-contractor 's accounts are accurate and up to date .
10 But in times of growing resource and environmental problems it is essential that energy is used and distributed as efficiently as possible .
11 Many journeys contain an element of bus travel and it is essential that bus , ferry , train and even air services should be coordinated to give the best possible connections to passengers whose journeys require the use of more than one form of transport .
12 It is essential that line 1 is connected to pin 1 of the connector .
13 It is essential that control should be kept over all stock , whether it be food , drink or items of equipment .
14 ‘ Therefore , it is essential that sound guidance is available to those who need it . ’
15 It is essential that healthcare staff know how to prevent cross-infection of HIV without letting it affect patient care .
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