单选题
Preventing Child Maltreatment

Child maltreatment is a global problem with serious life-long consequences. There are no reliable global estimates for the prevalence of child maltreatment. Data for many countries especially low-and-middle-income countries, are lacking.
Child maltreatment is complex and difficult to study. Current estimates vary widely depending on the country and the method of research used. Nonetheless, international studies reveal that approximately 20 % of women and 5-10 % of men report being sexually abused as children. While 25-50 % of all children report being physically abused. Additionally, many children are subject to emotional abuse (sometimes referred to as psychological abuse).
Every year, there are an estimated 31,000 homicide deaths in children under 15. This number underestimates the true extent of the problem, as a significant proportion of deaths due to child maltreatment are incorrectly attributed to falls, bums and drowning.
Child maltreatment causes suffering to children and families and can have long-term consequences. Maltreatment causes stress that is associated with disruption in early brain development. Extreme stress can impair the development of the nervous and immune systems. Consequently, as adults, maltreated children are at increased risk for behavioral, physical and mental health problem. Via the behavioral and mental health consequences, maltreatment can contribute to heart disease, cancer, suicide and sexually transmitted infections.
Beyond the health consequences of child maltreatment, there is an economic impact, including cost of hospitalization, mental health treatment, child welfare, and longer-term health cost.
A number of risk factor for child maltreatment have been identified. These risk factors are not present in all social and cultural contexts, but provide an overview when attempting to understand the causes of child maltreatment.
It is important to emphasize that children are the victims and are never to blame for maltreatment. A number of characteristics of an individual child may increase the likelihood of being maltreated, such as being either under four years old or an adolescent, being unwanted, or failing to fulfill the expectations of parents and having special need, crying persistently or having abnormal physical features

单选题 The difficult situation in the global estimates of the child maltreatment is due to the following factors EXCEPT______according to the passage.
【正确答案】 C
【答案解析】文中第一段提到了虐待儿童是全球问题，无法获得中低收入国家中儿童受虐数字资料，第二段开头提到了儿童受虐数字难以统计的另外一个原因，即研究方法的差异性，只有专业统计人员是否缺乏没有提及，因此答案为C。
单选题 Which of the following statements is true according to the passage?
【正确答案】 B
【答案解析】文中第二段对数字有明确说明。
单选题 Many homicide deaths in children under 15 are wrongly categorized into the following types EXCEPT______according to the passage.
【正确答案】 B
【答案解析】文中第三段指出每年15岁以下儿童死亡大概在31，000人，该数字大大低估了实际情况，是因为有相当多的由于受虐而导致死亡的儿童被归因为摔死、烧死、淹死。没有明确指出腹泻，因此可推断出该题答案为B。
单选题 Which of the following is NOT mentioned as the bad impact caused by child maltreatment?
【正确答案】 A
【答案解析】文中提到虐待儿童会导致其出现身体上的疾病，包括神经系统、免疫系统、大脑发育以及成年后出现的疾病，但那没有提到是否会对其记忆力产生影响，因此答案为A。
单选题 The maltreated children often bear all the following characteristics EXCEPT______.
【正确答案】 D
【答案解析】Consequently，as adults，maltreated children are at increased risk for behavioral，physical and mental health problems．Via the behavioral and mental health consequences，maltreatment can contribute to heart disease，cancer，suicide and sexually transmitted infections．因此，那些曾被虐待的儿童，到了成人期，在行为、生理以及心理等方面出现疾病的危险性大大增加。通过行为和心理上对健康的影响，虐待又会导致其出现心脏病、癌症、自杀以及性传播疾病等。