【正确答案】
B
【答案解析】[听力原文]
A new study says people are living longer, but many are living longer in poor health. Researchers found that life expectancy has increased by about five years since 1990. On average, men worldwide can expect to live 67 and a half years. Women can expect to live to age 73.
Almost 500 researchers in 50 countries took part in the study of global disease and disability. The findings appear in a series of articles in the medical journal Lancet. Richard Horton is the editor-in-chief of the journal.
He said, "All of us in the world of health focus on diseases and often bad news. Actually, the Global Burden of Disease 2010 Study broadly presents very good news."
The research found that far fewer people died of infectious diseases in 2010 than in 1990. Deaths from infections, childbirth-related problems and malnutrition fell about 17 percent to 13.2 million.
Global efforts have focused on reducing HIV/AIDS, tuberculosis and malaria. HIV/AIDS deaths have dropped since 2006, and TB deaths fell almost 20 percent since 1990. But each of these diseases still kills more than a million people every year. The number of malaria deaths increased by an estimated 20 percent, to almost 1.2 million in 2010.
"Those three big, big diseases are not just going to go away," Mike Cohen said. He is the head of global health research at the University of North Carolina at Chapel Hill. He was not involved in the research, but says it shows a change taking place worldwide.
"As infectious diseases have been better controlled and people live longer, and as their diets change and lifestyles change, the inevitable consequence in health is, you have to deal much more broadly with non-infectious health problems."
The study found that non-communicable diseases caused more than half of the global burden of disease in 2010.
The two biggest killers were heart disease and stroke, and they have caused one-fourth of all deaths in 2010. That was up from one-fifth in 1990.
What did Richard Horton think of the global health status in 2010?
文中说：我们医疗界的人都关注疾病和坏消息。但实际上，报告总体上传递的是好消息。也就是说全球总体的健康状况比较乐观。