阅读理解
Passage 3
Questions 11 to 15 are based on the following passage:
When Bill de Blasio ran for New York City mayor last year, he promised to end a controversial （有争议的）, citywide cell-phone ban（禁令）in public schools, which is not equally enforced in all schools. Now, under his leadership, the city is preparing to end the ban. It will be replaced by a policy that allows phones inside schools but tells students to keep them packed away during class.
Many schools have a rule about enforcing the ban that says, “If we don't see it, we don't know about it.” That means teachers are OK with students bringing in cell phones, as long as they stay out of sight and inside bags and pockets.
But at the 88 city schools with metal detectors, die ban has been strictly enforced. The detectors were installed to keep weapon out of schools，but the scanners（扫描器）can also detect cell phones. So students at these schools must leave their phones at home or pay someone to store it for them.
The ban was put into place in 2007 under mayor Michael Bloomberg. Ending the ban will also likely end an industry that has sprung up near dozens of the schools that enforce the ban. Workers in vans（厢式货车）that resemble food tracks store teens' cell phones and Other devices for a dollar a day,
(79) Critics of the ban say cell phones are important safety devices for kids during an emergency. They also say that enforcement of the ban is uneven and discriminatory. Where the ban is enforced, it puts a disadvantage on students who can't afford to pay to store their phones.
Before putting an official end to the cell-phone ban, city education officials are working on creating a new policy. (80) It will include rules about not using the phones during class or to cheat on tests.
单选题
Which of the following is the main idea of the passage?
【正确答案】
D
【答案解析】[解析] 第一段第一、二句“When Bill de Blasio ran for New York City mayor last year, he promised to end a controversial, citywide cell-phone ban in public schools, which is not equally enforced in all schools. Now, under his leadership, the city is preparing to end the ban. ”。
主旨大意题。题干问的是“下列哪一个是文章的主旨?”根据定位句“当比尔竞选纽约市长的最后一年，他承诺要结束一个有争议的、范围广的公立学校手机禁令，这并不是在所有的学校同样执行。现在，在他的领导下，该市正准备结束这个禁令”。故选D。
单选题
Students pay ______ a day to leave their cell phones in a van parked near their school.
【正确答案】
A
【答案解析】[解析] 第四段最后一句“Workers in vans that resemble food trucks store teens" cell phones and other devices for a dollar a day. ”。
细节题。根据定位句“在货车这种类似食品车内保管青少年的手机和其它设备，一天收取一美元”。故选A。
单选题
Metal detectors were installed in 88 city schools, mainly to keep _______ out of schools.
【正确答案】
B
【答案解析】[解析] 第三段第二句“The detectors were installed to keep weapon out of schools, but the scanners can also detect cell phones. ”。
细节题。根据定位句“该探测器的安装是为了使武器远离校同，但扫描仪也可以检测到手机”。故选B。
单选题
The word discriminatory in Paragraph 5 probably means________.
【正确答案】
D
【答案解析】[解析] 倒数第二段第二句“They also say that enforcement of the ban is uneven and discriminatory. ”。
词义猜测题。通过uneven(不均匀的)。可以推测出discriminatory是不公平的意思，故选D。
单选题
According to the passage, which of the following statements is TRUE?
【正确答案】
D
【答案解析】[解析] ①倒数第三段第二句：“Ending the ban will also likely end an industry that has sprung up near dozens of the schools that enforce the ban. ”；②第一段第一句“When Bill de Blasio ran for New York City mayor last year...which is not equally enforced in all schools. ”；③倒数第三段第一句“The ban was put into place in 2007 under mayor Michael Bloomberg. ”。
细节题。根据定位句①可以反推出D项正确。A项明显错误。根据定位句②，B项错误。根据定位句③，C项时间与人物都不对。故选D。