编辑点评: 新GRE阅读考试考察大家的方面较多,除了大家需要拥有一定的词汇量以外,还需大家在解题的时候能够迅速了解出题者的意图,这就需要大家充分发挥自己的逻辑理解能力和推理能力,大家可以利用下文的新GRE阅读短文练习进行练习。
Certain extremely harmful bacteria found only in sewage are difficult to detect directly. Testing for E. coli, an easily detected and less harmful type of bacteria, in ocean water would be a reliable way of determining whether or not these more harmful bac-teria are present, since ocean water contains E. Coli only if the water is contaminated with sewage that contains the harmful bacteria.
Which of the following, if true, most seriously weakens the argument?
There are many different strains of the E. coli bacteria, and only some of these strains are harmful.
Some types of bacteria found in sewage are neither disease-causing nor difficult to detect directly.
Some of the types of bacteria found in sewage along with E. coli are not harmful to people unless the bacteria are ingested in large quantities.
E. coli dies out much more quickly than some of the more harmful bacteria found in sewage and then can no longer be easily detected.
Some of the types of bacteria found in sewage along with E. coli reproduce at a slower rate than E. coli.
答案:D
以上的内容供大家练习,大家平时也要多做些阅读真题,相信日积月累,你的GRE阅读分数也会马上得到提高!
[动词的时态]将来进行时
[动词]短语动词
[动词不定式]不定式作补语
[动词不定式]动词不定式
[动词的时态]时态一致
[动词的时态]一般现在时代替现在完成时
[特殊词精讲]be afraid doing/to do
[独立主格]with的复合结构作独立主格
[动词的时态] used to / be used to
[分词]分词
[特殊词精讲]感官动词 + doing/to do
[动词的时态]一般将来时
[动词不定式]不定式作主语
[动名词]短语动词
[句子的种类]祈使句结构
[动词的时态]用现在进行时表示将来
[动词不定式]用作介词的to
[分词]分词作状语
[动词的时态]一般现在时的用法
[动词的时态]比较一般过去时与现在完成时
[动词的时态]比较since和for
[动词的时态]一般现在时表将来
[动词的时态]不用进行时的动词
[分词] 分词作插入语
[独立主格]独立主格
[句子的种类]句子的种类
[特殊词精讲]regret doing/to do
[动词的语态]短语动词的被动语态
[分词]连词+分词(短语)
[动词不定式]动名词与不定式
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