2017年6月16日GRE阅读真题.

　　关于新GRE阅读的真题，在这里为大家放送，希望这些真题的详细解读能对大家有一定的帮助，有可能为大家提供一种新的GRE阅读思路，也有可能为为大家的薄弱环节进行了弥补。

　　GRE阅读：逻辑阅读

　　1. 逻辑

　　从略

　　2. 阅读

　　(1) (短阅读) 星云膨胀

　　一开始有个人认为星云膨胀是超新星爆炸形成的，之后有人反对，认为膨胀星云应包含一种密度较高的东西，他们应该反射光，但观测的星云不亮。下面是关于星云的形成原因介绍。

　　Many nebulae or stars form from the gravitational collapse of gas in the interstellar medium or ISM. As the material collapses under its own weight, massive stars may form in the center, and their ultraviolet radiation ionizes the surrounding gas, making it visible at optical wavelengths. Examples of these types of nebulae are the Rosette Nebula and the Pelican Nebula. The size of these nebulae, known as HII regions, varies depending on the size of the original cloud of gas. New stars are formed in the nebulas. The formed stars are sometimes known as a young, loose cluster.

　　Some nebulae are formed as the result of supernova explosions, the death throes of massive, short-lived stars. The materials thrown off from the supernova explosion are ionized by the energy and the compact object that it can produce. One of the best examples of this is the Crab Nebula, in Taurus. The supernova event was recorded in the year 1054 and is labelled SN 1054. The compact object that was created after the explosion lies in the center of the Crab Nebula and is a neutron star.

　　Other nebulae may form as planetary nebulae. This is the final stage of a low-mass star&aposs life, like Earth&aposs Sun. Stars with a mass up to 8-10 solar masses evolve into red giants and slowly lose their outer layers during pulsations in their atmospheres. When a star has lost enough material, its temperature increases and the ultraviolet radiation it emits can ionize the surrounding nebula that it has thrown off. The nebula is almost 97% hydrogen and 3% helium, plus trace amounts of other elements.

　　点评：在GRE考试中尤其是GRE阅读考试，有一些题材是经常会被涉及到的，这一点可以理解成这些题材槽点众多，ETS可以随便调戏;或者ETS用情专一，专爱那几抹独特的风情。Whatever，这些题材目前有我们熟知的女权(本次有考到)，黑奴，气候变化以及天文学，建议大家没事扩充阅读量的时候，可以有意识的多了解下这些方面的内容，事实上，在天文学里面，超新星，白矮星，中子星，黑洞，星云，星尘，宇宙大爆炸这些都已经考过并且未来仍然可能继续考，现成的网络资源比如Wikipedia完全可以发挥出用武之地。

　　(2) (长阅读)女权与美国宪法

　　在美国宪法中，与女权有关的宪法修正案为十九修正案(Nineteenth Amendment to the United States Constitution)，it prohibits any United States citizen from being denied the right to vote on the basis of sex. 真正在宪法意义上规定了女性拥有合法的选举权。有兴趣的可以Wiki扩展背景。值得一提的是，目前考过的修正案还有大名鼎鼎的十四以及小名鼎鼎的十五。下面是简介，具体还是看Wiki比较全面。

　　The Fourteenth Amendment (Amendment XIV) to the United States Constitution was adopted on July 9, 1868, as one of the Reconstruction Amendments. The amendment addresses citizenship rights and equal protection of the laws, and was proposed in response to issues related to former slaves following the American Civil War.

　　The Fifteenth Amendment (Amendment XV) to the United States Constitution prohibits the federal and state governments from denying a citizen the right to vote based on that citizen&aposs "race, color, or previous condition of servitude"