2016年12月CET6阅读理解备考练习题

在备考英语六级时，有木有同学觉得阅读理解是六级的痛中之痛呢?其实只要多练习，阅读拿高分是没问题的。以下是yjbys网小编整理的关于CET6阅读理解备考练习题，供大家备考。

There is evidence that the usual variety of high blood pressure is,in part,a familiar e families have similar genes as well as similar environments,familiar diseases could be due to shared genetic influences,to shared environmental factors,or to some years,the role of one environmental factor commonly shared by families,namely dietary salt(i.e.,sodium chloride),has been studied at Brookhaven National e studies suggest that chromic excess salt ingestion can lead to high blood pressure in man and individuals,however,and some rats consume large amounts of salt without developing high blood matter how strictly all environmental factors were controlled in these experiments,some salt-fed animals never developed hypertension whereas a few rapidly developed very severe hypertension followed by early e marked variations were interpreted to result from differences in genetic constitution.

By mating is successive generations only those animals that failed to develop hypertension from salt ingestion,a resistant strain(the "R" Strain)has been evolved in which consumption of large quantities of salt fails to influence the blood pressure contrast,by mating only animals that quickly develop hypertension from salt,a sensitive strain("S" strain)has also been developed.

The availability of these tow strains permits investgations not heretofore provide a plausible laboratory model on which to investigate some clinical aspects of the human prototypes of important,there might be the possibility of developing methods by which genetic susceptibility of human beings to high blood pressure can be defined without waiting for its oactive sodium 22 was an important "tool" in working out the characteristics of the sodium chloride metabolism.

study of the effects of salt on high blood pressure was carried out ______.

members of the same family tend to use similar amounts of salt

explore the long-term use of a sodium based substance

use it was proven that salt caused high blood pressure

use of the availability of chemically pure salt and its derivatives

main difference between "S" and "R" rats is their ______.

for sodium 22 of tion to of blood

can infer from the article that sodium 22 can de used to ______.

rol high blood high blood pressure caused by salt

the "S" rats from the "R" rmine what a sodium chloride metabolism is like

most beneficial results of the research might be ______.

lopment of diets free of early cure for high blood pressure

rol of genetic agents that cause high blood early identification of potential high blood pressure victims

h of the statements best relates the main idea of this article?

salt is added rats and human beings react near future will see a cure for high blood pressure.

medical field is desperately in need of research.d.A tendency toward high blood pressure may be a hereditary factor.

【答案】：acddd