Passage 4 Questions 16 to 20 are based on the following passage. The teenage years of an individual is marked by evaluating one's values, experiencing a shift in outlooks, and a tendency to act rebelliously. It can also be a time when someone becomes excessively vulnerable to negative influences and inclined towards dangerous situations. On the other hand, for parents the period of their children's adolescence means regular worrying about their safety and formation as a citizen. Thus, a method of ensuring teenagers' security is needed, and curfews are often seen as such a measure, since they have proved their efficiency. At the same time, certain peculiarities exist about establishing curfews for children. The first and foremost reason for establishing curfews is children's security.Typical curfews require that teenagers under 17 years stay out of streets starting from 11pm or midnight. This is believed to protect them from crimes committed after nightfall, as well as from violating the law, and there exists serious evidence in favor of this conviction. For example, when New Orleans enabled a dusk-till-dawn curfew in 1994, the rates of juvenile （青少年的） crime were reported to fall more than 20 percent. Even more impressive results were recorded in Dallas, which reported a 30 percent decrease in violent juvenile crime, and a 21 percent decrease in the overall rates of crimes committed by young people. On the other hand, curfews can be seen as a preventive measure which infringes on （诬害） the rights of young people, limiting their freedom. This thesis is particularly supported by the fact that curfew violations and the respective charges are among the most often committed juvenile crimes in the United States. In addition, there were reports claiming that police arrested more non-white teenagers for curfew violations. All this can cause a teenager to believe that they have crossed a psychological line dividing them as criminals; thus, such teenagers may start to see themselves as outlaws, which can contribute to committing more serious crimes than a curfew offense. What is important for a parent to remember when establishing a curfew for their kids is that a teenager's misjudged perception of certain rules may cause them to react differently, or misbehave in some other way; this is proved by research conducted by the University of Minnesota, according to which teens tend to react angrily against what they see as unfair. Considering this, parents should avoid the authoritarian（独断专行的） style of establishing curfews; instead, they should have a conversation with their teenager that would be aimed at finding best conditions for a curfew that would satisfy both sides. Also, flexible curfews with teens’ interests in mind tend to be more effective than rigid agreements.To make curfews more effective, parents had better________.
A、reach rigid agreement with their child
B、discuss the issue with their child
C、be with their child all night
D、leave their child alone
【正确答案】：B
【题目解析】：细节判断题。文章第四段针对青少年的心理特点就如何对子女采取宵禁的办法给家长提出了一些建议。作者认为父母should have a conversation with their teenager that would be aimed at finding best conditions for a curfew（和他们处于青春期的子女谈一谈，以便找到最好的实施宵禁的情况），可见父母最好能和孩子讨论这一问题。因此选项B为正确答案。
