A. medical B. so C. considered A. Several hot days are【T7】______a heat wave. B.【T8】______does extreme heat. C. cause ser

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问题 A. medical     B. so     C. considered
A. Several hot days are【T7】______a heat wave.
B.【T8】______does extreme heat.
C. cause serious【T9】______problems
    Extremely hot weather is common in many parts of the world. Although hot weather just makes most people feel hot, it can【T10】______—even death. Floods, storms, volcano eruptions and other natural disasters kill thousands of people every year.【T11】______. 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.【T12】______. 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.
【T7】

选项 A、 
B、 
C、 

答案C

解析 根据句法原则,该空格在be之后,填入considered,表示被动语态:几个热天被认为是一股热浪。
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