2. 职称英语
  3. Pollution of water supplies is usually due to poor health conditions close t

Pollution of water supplies is usually due to poor health conditions close t

游客2023-10-10  43
问题     Pollution of water supplies is usually due to poor health conditions close to water sources, sewage 【T1】______into the sources themselves, leakage of sewage into【T2】______systems or pollution with industrial or【T3】______waste. Even if a piped water supply is safe at its source, it is not always safe by the time it reaches the tap. Intermittent tap-water supplies should be【T4】______as particularly suspect.
    Travelers on short trips to areas with water supplies of uncertain【T5】______should avoid drinking tap-water, or【T6】______water from any other source. It is best to drink hot drinks, bottled or canned drinks of well-known brand names—international【T7】______of water treatment are usually followed at bottling plants. Carbonated(含二氧化碳的)drinks are acidic(酸性的), and slightly safer.【T8】______, and that their rims(边缘)are clean and dry.
    Boiling is always a good way of treating water.【T9】______. Portable boiling elements that can boil small quantities of water are useful when the right voltage(电压)of electricity is available.【T10】______. [br] 【T6】
选项
答案 untreated
解析 根据空格后的名词water可知此处应填入一个名词或形容词作定语。本句表达的是短途游客在水质不确定的地区应避免喝什么样的水。因此，空格处所填单词所表达的含义应该是负面的。结合录音可知答案为untreated，意为“未经处理的”。
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