2025年12月大学英语六级阅读模拟训练题（17）

2025-06-23 08:22:00来源：网络

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　　在英语六级备考过程中，模拟题训练能有效提升应试状态。通过反复练习真题或高质量模拟题，逐步适应考试节奏与答题要求。小编为同学们带来的2025年12月大学英语六级阅读模拟训练题（17），一起练起来吧。

　　2025年12月大学英语六级阅读模拟训练题（17）

　　The difference between a liquid and a gas is obvious under the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and fill it to the level of a free surface. A gas forms no free surface but tends to diffuse throughout the__1__available; it must therefore be kept in a closed container or held by a gravitational field, as in the__2__of a planet's atmosphere. The distinction was a __3__feature of early theories describing the phases of matter. In the nineteenth century, for example, one theory maintained that a liquid could be "dissolved" in a vapor without losing its identity, and another theory__4 __that the two phases are made up of different kinds of molecules. The theories now prevailing take a quite different approach by emphasizing what liquids and gases have in __5 __They are both forms of matter that have no __6 __structure, and they both flow readily.

　　The fundamental similarity of liquids and gases becomes clearly apparent when the temperature and pressure are __7__somewhat. Suppose a closed container __8__filled with a liquid is heated. The liquid expands, or in other words becomes less dense; some of it evaporates. In contrast, the vapor above the liquid surface becomes denser as the evaporated molecules are __9__to it. The combination of temperature and pressure at which the densities become __10__is called the critical point.

　　A. added B. case C. prominent D. held

　　E. equal F. partially G. example H. previous

　　I. space J, lifted K. permanent L. particularly

　　M. extended N. raised O. common

　　答案：

　　I. I 2. B 3. C 4. D 5. O 6. K 7. N 8. F 9. A 10. E

　　以上是新东方在线英语六级频道分享的“2025年12月大学英语六级阅读模拟训练题（17）”的内容，更多英语六级精彩内容，请持续关注新东方在线六级模拟题频道!

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