2. 外语
  3. Noise constitutes a real and present danger to people’s health. Day and night, at home, at work, and at play, noise can produce

Noise constitutes a real and present danger to people’s health. Day and night, at home, at work, and at play, noise can produce

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问题     Noise constitutes a real and present danger to people’s health. Day and night, at home, at work, and at play, noise can produce serious physical and 【C1】_____ stress. No one is 【C2】_____ to this stress.
    Though we seem to 【C3】_____ to noise by ignoring it, the ear, in 【C4】_____, never closes and the body still responds—sometimes with extreme tension— 【C5】_____ a strange sound in the night.
    The 【C6】_____ we feel when faced with noise is the most common outward disease of the stress 【C7】_____ inside us. The more 【C8】_____ and more serious health hazards 【C9】_____ with the stress caused by noise traditionally have been given much less attentioa 【C10】______, when we are annoyed or made irritable by stress, we should consider these 【C11】_____ fair warning that other things may be happening to us, some of which may be damaging our health.
     【C12】_____ all health hazards of noise, hearing 【C13】_____ is most clearly observable and measurable by health professionals. The other hazards are 【C14】_____ to identify. For many of us, there may be a risk that 【C15】_____ to stress of noise increases 【C16】_____ to disease and infection. The more susceptible among us may experience noise as a 【C17】_____ factor in heart problems and other diseases. Noise that causes annoyance and irritability in healthy persons may have more serious consequences for those already ill in mind and body. However, the link between noise and many disabilities or diseases has not yet been
     【C18】_____ demonstrated, and we tend to 【C19】_____ annoyance caused by noise as a 【C20】_____ to pay for living in the modern world.
【C11】
选项 A、symptoms
B、phenomena
C、appearances
D、illnesses
答案A
解析 考查语义逻辑及背景常识。文章下一段列举了一系列噪音引起的疾病，其中也提到了annoyance and irritability，而此空前的these实际指的就是其上文提到的annoyed．．．irritable by stress，结合常识可知这些都可被称为“症状”，symptoms“症状”为正确答案。
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