托福阅读否定事实信息题是阅读考试十大题型之一，通常每篇阅读中都会出现;tpo是托福阅读备考最权威的材料，所以托福小编综合二者，为大家集中整理了tpo阅读中考察的否定事实信息题及其对应的解析，供大家参考使用。本文带来的是TPO16-2的否定事实信息题，一起来看看吧。
TPO16-2 Planets in Our Solar System
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The Sun is the hub of a huge rotating system consisting of nine planets, their satellites, and numerous small bodies, including asteroids, comets, and meteoroids. An estimated 99.85 percent of the mass of our solar system is contained within the Sun, while the planets collectively make up most of the remaining 0.15 percent. The planets, in order of their distance from the Sun, are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. Under the control of the Sun's gravitational force, each planet maintains an elliptical orbit and all of them travel in the same direction.
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The planets in our solar system fall into two groups: the terrestrial (Earth-like) planets (Mercury, Venus, Earth, and Mars) and the Jovian (Jupiter-like) planets (Jupiter, Saturn, Uranus, and Neptune). Pluto is not included in either category, because its great distance from Earth and its small size make this planet's true nature a mystery.
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The most obvious difference between the terrestrial and the Jovian planets is their size. The largest terrestrial planet, Earth has a diameter only one quarter as great as the diameter of the smallest Jovian planet, Neptune, and its mass is only one seventeenth as great. Hence, the Jovian planets are often called giants. Also, because of their relative locations, the four Jovian planets are known as the outer planets, while the terrestrial planets are known as the inner planets. There appears to be a correlation between the positions of these planets and their sizes.
1. According to the passage, each of the following statements comparing terrestrial planets with Jovian planets is true EXCEPT:
A. Terrestrial planets are closer to the Sun than Jovian planets.
B. Terrestrial planets have smaller diameters than Jovian planets.
C. Terrestrial planets have smaller masses than Jovian planets.
D. Terrestrial planets travel in a different direction than Jovian planets do.
解析：EXCEPT题，排除法，问整个文章，所以应该关注各段的开头。第二段提到了分成两类，第三四两段叙述区别;A的closer做关键词定位至第三段倒数第二句，正确，不选;B的diameter做关键词定位至第三段第二句，正确，不选;C的smaller masses做关键词定位至第三段第一句的size，正确，不选;D与原文第一段末句相反，错，选
[1]九大行星、它们的卫星以及数以亿计的小天体，包括小行星、彗星和陨星，共同构成了一个巨大的公转系统而太阳是这个公转系统的核心。太阳系中，太阳的质量占大约99.85%，而所有行星的质量加起来占剩下的0.15%。九大行星按照距离太阳的远近依次为：水星、金星、地球、火星、木星、土星、天王星、海王星和冥王星。在太阳引力的作用下，每个行星都沿着椭圆形的轨道，按照相同的方向公转。
[2]太阳系中九大行星分为两类：类地行星(和地球类似，包括水星、金星、地球和火星)和类木行星(与木星类似，包括木星、土星、天王星和海王星)。冥王星不属于这两类中的任何一个，因为它距地球很远且体积较小，所以目前冥王星的真实形态仍然是个谜。
[3]地行星和类木行星最为明显的差别就在于它们的体积。比如最大的类地行星地球的直径仅仅是最小的类木行星海王星的四分之一，而质量更是只有海王星的1/17。因此，类木行星通常又被称为巨行星。又因这四颗类木行星与地球的相对位置，它们也被称为外行星，而类地行星则相应被称作内行星。这表示行星的位置与体积之间是有关联的。
TPO16-2 Planets in Our Solar System
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Other dimensions along which the two groups differ markedly are density and composition. The densities of the terrestrial planets average about 5 times the density of water, whereas the Jovian planets have densities that average only 1.5 times the density of water. One of the outer planets, Saturn, has a density of only 0.7 that of water, which means that Saturn would float in water. Variations in the composition of the planets are largely responsible for the density differences. █The substances that make up both groups of planets are divided into three groups—gases, rocks, and ices—based on their melting points. █The terrestrial planets are mostly rocks: dense rocky and metallic material, with minor amounts of gases. █The Jovian planets, on the other hand, contain a large percentage of the gases hydrogen and helium, with varying amounts of ices: mostly water, ammonia, and methane ices. █
4. Paragraph 4 supports each of the following statements about Saturn EXCEPT:
A. It is less dense than any of the terrestrial planets
B. It contains no rocky material.
C. It contains ices.
D. It contains a large percentage of gases.
解析：EXCEPT题，排除法，A的dense做关键词定位至第一和第二句，说类地行星的密度大致是水的五倍，土星是水的0.7倍，所以A说土星比任何类地行星密度都小正确，不选;B的rocky material做关键词定位至倒数两句，说类地行星主要由石质物质组成，类木行星主要由气态物质组成，没说土星所属的类木行星没有石质物质，错，选;同时证明C和D正确，不选
[4]两类行星其它方面的区别中，比较显著的是密度和构成成分。类地行星的平均密度大约为水的5倍，而类木行星的平均密度大概只有水的1.5倍。外行星中土星的密度只有水的0.7倍，也就是说土星可以浮在水上。行星的构成成分不同很大程度上是因为密度差异。两类行星的构成物质根据熔点可以划分为三类——气体、岩石和冰。类地行星多数由岩石(致密岩石和金属材料)以及少量气体构成。而类木行星恰恰相反，包含较大比例的气态氢和氦，以及各种形态的冰(大部分是水、氨和甲烷冰)。
以上就是托福阅读TPO16-2中的否定事实信息题及其解析，大家可以在备考的时候参考复习，希望能够帮助大家的考前准备。最后前程百利祝大家都能取得理想的托福考试成绩。
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