Measles(麻疹), which once killed 450 children each year and disabled even more, was nearly wiped out in the United States 14 years ago by the universal use of the MMR vaccine(疫苗). But the disease is making a comeback, caused by a growing anti-vaccine movement and misinformation that is spreading quickly. Already this year, 115 measles cases have been reported in the USA, compared with 189 for all of last year.
The numbers might sound small, but they are the leading edge of a dangerous trend. When vaccination rates are very high, as they still are in the nation as a whole, everyone is protected. This is called “herd immunity”, which protects the people who get hurt easily, including those who can’t be vaccinated for medical reasons, babies too young to get vaccinated and people on whom the vaccine doesn’t work.
But herd immunity works only when nearly the whole herd joins in. When some refuse vaccination and seek a free ride, immunity breaks down and everyone is in even bigger danger.
That’s exactly what is happening in small neighborhoods around the country from Orange County, California, where 22 measles cases were reported this month, to Brooklyn, N.Y., where a 17-year-old caused an outbreak last year.
The resistance to vaccine has continued for decades, and it is driven by a real but very small risk. Those who refuse to take that risk selfishly make others suffer.
Making things worse are state laws that make it too easy to opt out(决定不参加) of what are supposed to be required vaccines for all children entering KS5U kindergarten. Seventeen states allow parents to get an exemption（豁免), sometimes just by signing a paper saying they personally object to a vaccine.
Now, several states are moving to tighten laws by adding new regulations for opting out. But no one does enough to limit exemptions.
Parents ought to be able to opt out only for limited medical or religious reasons. But personal opinions? Not good enough. Everyone enjoys the life-saving benefits vaccines provide, but they’ll exist only as long as everyone shares in the risks.
63．The first two paragraphs suggest that ____________.
A．a small number of measles cases can start a dangerous trend
B．the outbreak of measles attracts the public attention
C．anti-vaccine movement has its medical reasons
D．information about measles spreads quickly
64．Herd immunity works well when ____________.
A．exemptions are allowed
B．several vaccines are used together
C．the whole neighborhood is involved in
D．new regulations are added to the state laws
65．What is the main reason for the comeback of measles?
A．The overuse of vaccine.
B．The lack of medical care.
C．The features of measles itself.
D．The vaccine opt-outs of some people.
66．What is the purpose of the passage?
A．To introduce the idea of exemption.
B．To discuss methods to cure measles.
C．To stress the importance of vaccination.
D．To appeal for equal rights in medical treatment.
【收录时间】
2017-06-20
【知识点】
健康保健类阅读
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【答案】63 A 64 C 65 D 66 C
单日会员可无限次解锁答案，低至9.9》
2017-06-20
阅读理解
中等
常晟
考点梳理：
根据可圈可点权威老师分析，试题 "
Measles(麻疹), which once killed 450 children each year and disabled even more, was nearly wiped
" 主要考察你对
健康环保类阅读
等考点的理解。关于这些考点的"梳理资料"如下:
◎ 健康环保类阅读的定义
健康环保累阅读概念：
健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。体裁有记叙文、 说明文、议论文和各种应用文。
◎ 健康环保类阅读的知识扩展
类型主要是围绕饮食健康、医疗卫生及环境保护等方面选取实际的材料来设题。体裁有记叙文、
说明文、议论文和各种应用文。
说明文、议论文和各种应用文。
◎ 健康环保类阅读的知识点拨
健康环保类文章阅读技巧：
健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。阅读此类短文要以现象或事物为中心进行思考，理解现象产生的原因、条件和客观规律等。同时要抓住事物的特征、用途和相互关系等。科普环保类文章一般为说明文，从结构上看大致可分为三个部分：
第一部分一般是文章的首段，主要用来提出文章的主题，即文章想要阐述、说明的主要内容；
第二部分是文章的主体，可由若干个段落组成，对文章的主题进行展开说明；
第三部分是结尾段，对文章的主题进行归纳总结。这类文章多用一般现在时，而且一般多使用客观性词语表述。有时为了强调客观性，也常使用被动语态。
从近几年的考试题来看，科普环保类的文章越来越与人们的实际生活相接近。由于此类文章缺乏故事情节，很多同学对此类文章感到费解。但一般的科普类文章都是就事论事，需要逻辑推理和想象的时候较少，因此此类阅读题也没有同学们想象中的那么难，只要多加训练，就能较好地答题。
【阅读策略】
1、概要(Summarizing)：
阅完材料后，将所阅材料浓缩，摘要，做出所阅材料的书面或口头梗概。
2、组织(Organization)：
阅读后根据阅读内容，识别观点、人物、事件之间的关系以及文章的结构关系。如：时间关系、比较或对比关系、相关关系及因果关系等。
◎ 健康环保类阅读的教学目标
1.提高学生的环保意识。
2.扩大词汇量，提高阅读速度。
2.扩大词汇量，提高阅读速度。
◎ 健康环保类阅读的考试要求
能力要求：掌握/应用
课时要求：2
考试频率：必考
分值比重：5
课时要求：2
考试频率：必考
分值比重：5