2. 外语
  3. The ability to move to find new work has long been a cornerstone of the American Dream. There is growing concern that being st

The ability to move to find new work has long been a cornerstone of the American Dream. There is growing concern that being st

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问题     The ability to move to find new work has long been a
cornerstone of the American Dream. There is growing concern that
being stuck in place contributes to higher levels of unemployment.
Our analysis, therefore, finds no correlation whatsoever between【M1】______
the percentage of residents who were born in a state and either the
overall rate of unemployment and its change over the past year.【M2】______
There is also no correlation between it and the level of income
inequality. States with higher percentages of home grown up【M3】______
residents do however have higher poverty rates. State mobility
appears to be related to residents’ perceptions of their future
economic conditions. The percentage of residents born in a state is
closely associated with the percentage of people in the state who
see the economy getting worse and negatively associated with the【M4】______
percentage who perceive the economy to be getting better. This
likely reflects a difference in the levels of income and skills what【M5】______
underlie these divergent perceptions about the economy.
    State-level mobility is also associated with key dimensions of
health and well-being. Low mobility states have higher levels of
obesity and smoking and higher levels of happiness and【M6】______
well-being. The percentage of residents born in a state is positively
correlated with smoking and obesity, as well as deaths from【M7】______
cardiovascular disease, heart disease, and cancer. Converse, the【M8】______
level of happiness or subjective well-being is negatively associated
with the percentage of residents born in a state. And many have【M9】______
focused on the economic effects of mobility, our analysis suggests
it play an important role in health and happiness as well.【M10】______
【M1】
选项
答案therefore一however
解析 语篇错误。由上下文语义判断。此句与前句之间应为转折关系，而不是因果关系。前句提到现在越来越担心停留在一个地方会导致更高的失业率，本句则说二者之间没有关联，后者与前者语义刚好相反，故应改为表示转折关系的副词however。
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