根据短文的内容，回答下列题目HeatIsKillerExtremelyhotweatheriscommoninmanypartsoftheworld.

共享题干题根据短文的内容，回答下列题目 Heat Is Killer Extremely hot weather is common in many parts of the world. Although hot weather just makes most people feel hot, it can cause serious medical problems--even death. Floods, storms,volcano eruptions and other natural disasters kill thousands of people every year. __________ (46)Experts say heat may be nature's deadliest killer. Recently, extreme heat was blamed for killing more than one hundred people in India. It is reported that the total heat of a hot day or several days can affect health. __________ (47). Experts say heat waves often become dangerous when the nighttime temperature does not drop much from the highest daytime temperature. This causes great stress on the human body. __________ (48). Stay out of the sun, if possible. Drink lots of cool water. Wear light colored clothing made of natural materials; avoid wearing synthetic clothing. Make sure the clothing is loose, permitting freedom of movement l. And learn the danger signs of the medical problems, such as headache and vomiting, that are linked to heat. __________ (49). The pain is a warning that the body is becoming too hot. Doctors say those suffering headache or muscle pain should stop all activity and rest in a cool place and drink cool liquids. Do not return to physical activity for a few hours because more serious conditions could develop. Doctors Say some people face an increased danger from heat stress. __________ (50).Hot weather also increases dangers for people who must take medicine for high blood pressure,poor blood flow, nervousness or depression.1.[不定向选择题]第49题____________A.Such persons have a weak or damaged heart, high blood pressure, or other problems of the blood syste B.Several of these conditions are present at the same tim C.Most people suffer only muscle pain as a result of heat stre D.Several hot days are considered a heat wavE.So does extreme heaF.Doctors say people can do many things to protect themselves from the dangers of extreme heaABCDEF确定 2.[不定向选择题]第50题____________A.Such persons have a weak or damaged heart, high blood pressure, or other problems of the blood syste B.Several of these conditions are present at the same tim C.Most people suffer only muscle pain as a result of heat stre D.Several hot days are considered a heat wavE.So does extreme heaF.Doctors say people can do many things to protect themselves from the dangers of extreme heaABCDEF确定

1.参考答案：C
参考解析：该空后面句子中有特指的the pain，说明前文一定出现过pain这个词。选项C的句子中有pain，且C的句子填入后，上下文意思连贯，所以是答案。故选C。?
2.参考答案：A
参考解析：该空前面的句子意思为：某些人身处热浪时会面临巨大的危险。读者或许会问，是哪些人呢?选项A回答了这个问题，所以是答案。故选A。?3.[不定向选择题]第47题____________A.Such persons have a weak or damaged heart, high blood pressure, or other problems of the blood syste B.Several of these conditions are present at the same tim C.Most people suffer only muscle pain as a result of heat stre D.Several hot days are considered a heat wavE.So does extreme heaF.Doctors say people can do many things to protect themselves from the dangers of extreme heaABCDEF确定

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