Many people talked of the 288,000 new jobs the Labor Department reported for June, along with the drop in the unemployment rate to 6.1 percent, as good news. And they were right. For now it appears the economy is creating jobs at a decent pace. We still have a long way to go to get back to full employment, but at least we are now finally moving forward at a faster pace.

    However, there is another important part of the jobs picture that was largely overlooked. There was a big jump in the number of people who report voluntarily working part-time. This figure is now 830,000 (4.4 percent) above its year ago level.

    Before explaining the connection to the Obamacare, it is worth making an important distinction. Many people who work part-time jobs actually want full-time jobs. They take part-time work because this is all they can get. An increase in involuntary part-time work is evidence of weakness in the labor market and it means that many people will be having a very hard time making ends meet.

There was an increase in involuntary part-time in June, but the general direction has been down. Involuntary part-time employment is still far higher than before the recession, but it is down by 640,000 (7.9 percent) from its year ago level.

    We know the difference between voluntary and involuntary part-time employment because people tell us. The survey used by the Labor Department asks people if they worked less than 35 hours in the reference week. If the answer is “yes”, they are classified as working part-time. The survey then asks whether they worked less than 35 hours in that week because they wanted to work less than full time or because they had no choice. They are only classified as voluntary part-time workers if they tell the survey taker they chose to work less than 35 hours a week.

    The issue of voluntary part-time relates to Obamacare because one of the main purposes was to allow people to get insurance outside of employment. For many people, especially those with serious health conditions or family members with serious health conditions, before Obamacare the only way to get insurance was through a job that provided health insurance.

    However, Obamacare has allowed more than 12 million people to either get insurance through Medicaid or the exchanges. These are people who may previously have felt the need to get a full-time job that provided insurance in order to cover themselves and their families. With Obamacare there is no longer a link between employment and insurance.

答案精析：根据题目中的Obamacare可定位至原文最后两段，这两段都是在针对奥巴马医改的相关内容进行描述。倒数第二段首句指出，奥巴马医改的主要目的之一是允许人们在没有工作的情况下获得保险，该段最后一句说到，在奥巴马医改之前，获得保险的唯一途径是提供健康保险的工作。文章最后一句表示，有了奥巴马医改，就业和保险不再有联系。由此可推断，就业不再是获得保险的先决条件，故正确答案为B。

错项排除：倒数第二段第一句提到，奥巴马医改的主要目的之一是允许人们在没有工作的情况下获得保险，也就是要让人们更容易获得保险，而且后文也说到之前获得保险的唯一途径是要通过一份工作得到，可见之前获得保险并非很容易，A项内容与原文意思相悖，故排除。C项内容为家庭成员投保仍然很困难说的是在奥巴马医改之前的事情，奥巴马医改后解决了这一困难，C项内容与原文意思不符，故排除。文章最后一句提到，有了奥巴马医改，就业和保险不再有联系，这说明全职工作已经不能成为获得保险的必要条件了，故D项内容错误。

长难句分析：For many people, especially those with serious health conditions or family members with serious health conditions, before Obamacare the only way to get insurance was through a job that provided health insurance.

本句主干为…the only way to get insurance was through a job…，主系表结构。句子开头的For many people作状语，表示主句的对象。两个逗号之间的内容为插入语，用于对people进行解释说明。before Obamacare为时间状语，主句后面的that引导定语从句，修饰job，用于解释job的作用。

句意为：对许多人来说，特别是那些有严重健康问题的人或家庭成员有严重健康问题的人，在奥巴马医改之前，获得保险的唯一途径是提供健康保险的工作。