Three children in every classroom have a diagnosable mental health condition. Half of these are behavioural disorders, while one third are emotional disorders such as stress, anxiety and depression, which often become outwardly apparent through self-harm. There was an astonishing 52 per cent jump in hospital admissions for children and young people who had harmed themselves between 2009 and 2015.    

    Schools and teachers have consistently reported the scale of the problem since 2009. Last year, over half of teachers reported that more of their pupils experience mental health problems than in the past. But teachers also consistently report how ill-equipped they feel to meet pupils’ mental health needs, and often cite a lack of training, expertise and support from the National Health Services (英国国家医疗服务体系).

    Part of the reason for the increased pressure on schools is that there are now fewer ‘early intervention (干预)’ and low-level mental health services based in the community. Cuts to local authority budgets since 2010 have resulted in a significant decline of these services, despite strong evidence of their effectiveness in preventing crises further down the line. 

    The only way to break the pressures on both mental health services and schools is to reinvest in early intervention services inside schools.

    There are strong arguments for why schools are best placed to provide mental health services. Schools see young people more than any other service, which gives them a unique ability to get to hard-to-reach children and young people and build meaningful relationships with them over time. Recent studies have shown that children and young people largely prefer to see a counsellor in school rather than in an outside environment. Young people have reported that for low-level conditions such as stress and anxiety, a clinical setting can sometimes be daunting (令人却步的).

    There are already examples of innovative schools which combine mental health and wellbeing provision with a strong academic curriculum. This will, though, require a huge cultural shift. Politicians, policymakers, commissioners and school leaders must be brave enough to make the leap towards reimagining schools as providers of health as well as education services.

解析：A。根据题干中的community health services可定位至第三段。本段主要介绍社区的“早期干预”和心理健康服务（mental health services based in the community），第二句指出，自2010年以来，对于地方政府预算的削减导致这些服务（these services）大幅减少，其中these service指的就是第一句中的社区心理健康服务，A项的deteriorated对应文中的decline，budget cuts对应文中的Cuts to local authority budgets，因此选A。

错项排除：B项内容在文中未提及，故排除。第三段最后指出，学校里的心理健康服务在预防未来危机方面是有效的，C项表述与此相悖，故排除。文中指出，这些服务在预防未来危机（preventing crises further down the line）方面很有效，根据上下文可知，此处的“未来危机”是指更为严重的心理健康问题，D项的preventative care（预防性护理）过于笼统，故排除。