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Cars do cause people some health problems, in fact far more serious _____ than computers do.
A.oneB.onesC.itD.those
B

试题分析:考查代词。It指代前面提及的同一事物;one指代可数名词单数,表示泛指;ones指代可数名词复数形式,表示泛指。Those指代可数名词复数,表示特指。本句中的ones指代可数名词单数problems。句意:汽车的确导致了很多健康方面的问题,实际上远比计算机导致的问题更多更严重。故B正确。
点评:代词的词义辨析考查的较为细致:One 指代可数名词单数,表示泛指;其特质形式为the one。It指代上文出现的同一事物;that指代可数名词单数,或者不可数名词,后面必须有定语修饰。起复数形式为those,同样后面也应该有定语修饰。
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