Heat Is Killer Extremely hot weather is common in many parts of the world. Although hot weather just makes most people feel

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问题                             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【C1】______serious medical problems—even death. Floods, storms, volcano eruptions and other natural【C2】______kill thousands of people every year. So【C3】______ extreme heat. Experts say heat may be nature’ s deadliest killer. Recently, extreme heat was blamed 【C4】______killing more than one hundred people in India. It is reported that the total heat of a hot day or several days can【C5】______health. Several hot days are considered a heat wave. Experts say heat waves often become dangerous when the nighttime temperature does not【C6】______much from the highest daytime temperature. This causes great stress on the human body.
    Doctors say people can do many things to【C7】______themselves from the dangers of extreme heat. Stay out of the sun, if possible. Drink lots of cool water. Wear light colored clothing made【C8】______ natural materials; avoid wearing synthetic clothing. Make sure the clothing is【C9】______, permitting freedom of movement. And learn the danger【C10】______of the medical problems, such as headache and vomiting, that are linked to heat. Most people suffer only muscle pain as a(n)【C11】______of heat stress. The pain is a【C12】______that the body is becoming too hot. Doctors say those suffering headache or muscle pain should stop all activity, rest in a cool place and drink cool liquids. Do not return to physical【C13】______for a few hours because more serious conditions could develop.
    Doctors say some people face an【C14】______danger from heat stress. Such persons have a weak or damaged heart, high blood pressure, or other problems of the blood system.
    Hot weather also increases dangers for people who must take【C15】______for high blood pressure, poor blood flow, nervousness or depression.
【C5】

选项 A、change
B、obtain
C、cause
D、affect

答案D

解析 该句意思是:据报道,一天或几天里遭受持续高温的袭击将影响健康。affect意思是“影响”,符合句意。change改变;obtain获得;cause引起。
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