新GRE阅读每日一练4月29日

2022-05-27 02:09:16

    成功越垒,每日练一练,分数节节高,且练且坚持!接下来一起来看看今天GRE备考内容: GRE阅读每日一练4月29日

        

  最新GRE阅读每日一练(12月7日)

  名师心血之作,考生必备最完美阅读资料,让GRE阅读更加完美,打造你的完美GRE分数,走过路过不要错过,命运掌握在自己手中,GRE掌握在自己手中,每日练一练,分数节节高,你值得拥有,且看且珍惜!GRE必胜!

  每日一练

  Although pathogenic organisms constantly alight on the skin, they find it a very unfavorable environment and, in the absence of injury, have great difficulty colonizing it. This “self-sterilizing” capacity of the skin results from the tendency of all well-developed ecosystems toward homeostasis, or the maintenance of the status quo.

  Species that typically live in soil, water, and elsewhere rarely multiply on the skin. Undamaged skin is also unfavorable to most human pathogens. The skin is too acid and too arid for some species. The constant shedding of the surface skin layers further hinders the establishment of invaders. The most interesting defense mechanism, however, results from the metabolic activities of the resident flora. Unsaturated fatty acids, an important component of the lipids in sebum collected from the skin surface, inhibit the growth of several bacterial and fungal cutaneous pathogens. These acids are a metabolic product of certain gram-positive members of the cutaneous community, which break down the more complex lipids in freshly secreted sebum.

  1. The primary purpose of the passage is to

  A. Offer an analysis of metabolic processes

  B. detail the ways in which bacteria and fungi can be- inhibited

  C. Describe mechanisms by which the skin protects itself against pathogens

  D. Analyze the methods whereby biological systems maintain the status quo

  E. Provide a specific example of the skin’s basic defenses against pathogens

  2. The “resident flora” refers to

  A. “Unsaturated fatty acids”

  B. “sebum collected from the skin surface”

  C. “bacterial and fungal cutaneous pathogens”

  D. “certain gram-positive members of the cutaneous community”

  E. “more complex lipids”

  3. The author presents her material in which of the following ways?

  A. Stating a problem and then supplying a solution

  B. Presenting a phenomenon and then analyzing reason font

  C. Providing information and then drawing a conclusion from it

  D. Making a general statement and then arguing by analogy

  E. Making an inference and then developing it by illustration

  正确答案

  C D B

  认真看完题目的考生,请允许小编为你狠狠鞠上一躬,征服美利坚不是梦啊!希望每位考生在考前都能做好充分的准备,得到自己理想的分数!


  以上为今天网给大家准备的gre阅读 备考内容:GRE阅读每日一练4月29日   ~   希望大家能够通过今天的学习积累更多关于阅读题的答题思路,在考试时能够从容应对,取得好成绩。  最后预祝大家在GRE考试中取得优异的成绩! 更多GRE精彩内容,请持续关注网论坛!

考试安排