- 相關推薦
2017年英語六級閱讀理解考試題模擬練習
舊書不厭百回讀，熟讀精思子自知。以下是小編為大家搜索整理的2017年英語六級閱讀理解考試題模擬練習，希望能給大家?guī)韼椭?更多精彩內容請及時關注我們應屆畢業(yè)生考試網(wǎng)!
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 11 available; it must therefore be kept in a closed container or held by a gravitational field, as in the 12 of a planet's atmosphere. The distinction was a 13 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 14 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 15 They are both forms of matter that have no 16 structure, and they both flow readily.
The fundamental similarity of liquids and gases becomes clearly apparent when the temperature and pressure are 17 somewhat. Suppose a closed container 18 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 19 to it. The combination of temperature and pressure at which the densities become 20 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
0. common
參考答案
II. I 12. B 13. C 14. D 15. O 16. K 17. N 18. F 19. A 20. E
【英語六級閱讀理解考試題模擬練習】相關文章：
英語六級試題閱讀理解模擬練習08-26
英語六級備考練習閱讀理解考試題10-28
2016年12月英語六級閱讀理解模擬練習07-27
2017年英語六級閱讀理解在線模擬考試題10-30
大學英語六級閱讀模擬練習08-26
專八閱讀理解考試題模擬訓練10-09
最新英語六級閱讀理解模擬試題07-20
2017年高考英語閱讀理解模擬練習09-22