5．B　[上文中“Dog expressions are also used to describe the weather.”可知此处讨论的应该是用dog短语来描述天气的内容，故选B。]

　　Passage 5限时：7分钟

　　体裁：议论文　题材：科普知识类　难度：中词数：266

　　[2016·冀州中学一轮检测]

　　Doctors Say Most Heart Disease Preventable

　　Heart disease is the number one killer, worldwide, of men and women over the age of 60.But people of all ages die of heart attacks each year.And while death rates have declined in the U．S.and many western European countries, they are on the rise in the developing world.__1__.

　　No one would have guessed that Barbara Teng would have a heart attack.She was not overweight.She did not smoke or exercise.“In 2004, the week after I turned 49, when I was on a business trip in Chicago, I had a major heart attack，” she said.__2__.She now exercises daily, and monitors her heart health.

　　Dr Patrice Nickens, who is with the National Heart, Lung and Blood Institute, thinks that heart disease is 82 percent preventable.“__3__，” she said.“Men are also facing the same problem, and the key to staying healthy is knowing your numbers.”

　　“Your weight, your blood cholesterol, blood sugar and your blood pressure are important numbers that can help you take action and reduce your risk，” she said.

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