攻破2017新gre逻辑阅读 每日一练48.

　　2011新gre考试实施以来，参加了新版gre考试的考生都觉得阅读部分的题难度增加了，这主要是由于新gre考试逻辑阅读需要考生的逻辑反应一定要比以前更快，可能考生还是有点不习惯，或是没有准备充足。那么，接下来的几天，小编将给大家搜索整理一些新gre考试逻辑阅读的练习题，希望考生能从平日的练习中总结规律，找到解题技巧。

　　Questions 6 to 8 are based on the following readingpassage.

　　The success of fluoride in combating dental decay is well established and, without a doubt, sociall benicial.However, fluoride&aposs toxic properties have been known fora century. In humans excessive intake (for adults, over 4 milligrams per day) over many years can lead to skeletal fluorosis, a well-dined skeletal disorder, and in some plant species, fluoride is more toxic than ozone, sulfur dioxide, or pesticides. Some important questions remain. For example, the precise lower limit at which the fluoride content of bone becomes toxic is still undetermined. And while fluoride intake from water and air can be evaluated relatively easily, it is much harder to estimate how much a given population ingests from foodstuffs because of the wide variations in individual eating habits and in fluoride concentrations in foodstuffs.

　　6. The passage suggests that it would be easier to calculate fluoride intake from food if

　　○ A adequate diets were available for most people.

　　○ B individual eating habits were more uniform

　　○ C the fluoride content of food was more varied

　　○ D more people were aware of the fluoride content of food

　　○ E methods for measuring the fluoride content of food were more generally agreed on

　　7. One function of the second paragraph of the passage is to

　　○ A raise doubts about fluoride&aposs toxicity

　　○ B introduce the issue of fluoride&aposs toxicity

　　○ C differentiate a toxic from a nontoxic amount of fluoride获得更多gre考试咨询点击进入>>>>澳际免费咨询顾问或联系QQ客服：

　　○ D indicate that necessary knowledge of fluoride remains incomplete

　　○ E discuss the foodstuffs that are most likely to contain significant concentrations of fluoride

　　For the following question, consider each of the choices separately and select all that apply

　　8.The passage suggests which of the following about the fect of fluoride on humans?

　　□ A The fect of fluoride intake from water and air is relatively difficult to monitor.

　　□ B An intake of 4 milligrams over a long period of time usually leads to a skeletal disorder in humans.

　　□ C An intake of slightly more than 4 milligrams for only a few months is not likely to be life-threatening.

　　正确答案：6.B 7. D 8. C

　　以上即是阅读练习题，对于新gre考试逻辑阅读，考生除了采取题海战术，其实更应该做的就是总结。如果能从平日的练习中找到解新gre考试逻辑阅读题的思路，那么，要比采取题海战术更好。

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