__4__.

　　“And the steps to take are simple: don't smoke, maintain a healthy weight, exercise, know your numbers and talk to your physician and control these risks，” she said.

　　AfricanAmericans are at higherthanaverage risk for heart disease and stroke; people don't even know they have it, which increases the risk.Medstar Washington Hospital Center is trying to reach this population.__5__.For example, helping the people monitor their blood pressure.If people realize they are at risk for heart disease, they'll make lifestyle changes: lose weight, exercise, eat the right foods and keep in touch with a doctor.

　　A．A healthy lifestyle can prevent heart disease

　　B．So we must cure heart disease

　　C．It is the leading cause of death for women

　　D．With the right training, they can play an important role in community health

　　E．And that changed her life

　　F．Lack of exercise causes heart attacks

　　G．Yet most heart disease is preventable

　　文章主题是：大多数心脏病是可以预防的。

　　1．G　[本段的功能是提出主题，即大多数心脏病是可以预防的，故答案为G项。]

　　2．E　[本空前面提到Barbara Teng在心脏病发作前不抽烟，不锻炼(did not smoke or exercise)，设空处后提到她开始每天锻炼(She now exercises daily)，由此可见心脏病发作改变了她的生活，故答案为E项。]

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