咨询电话：400-699-7... 展开

六级网课 抢分攻略 听力急救 阅读带练 零基础 考研辅导

新东方在线 > 六级 > 英语六级阅读 > 正文

2021年12月大学英语六级阅读训练：17

2021-09-15 08:26:00来源：网络

　　2021年12月大学英语六级阅读训练汇总

　　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

　　2021年12月大学英语六级阅读训练汇总


大学英语六级寒假全程班

大学英语六级寒假全程班

本文关键字: 英语六级阅读 六级阅读练习

-->

扫码即刻查分 四六级最新答案

四六级好课 海量资料定期更新

更多资料

关注四六级小助手服务号回复【典藏笔记】获取

关注四六级小助手服务号，
获取学习资料

  • 1.打开手机微信【扫一扫】，识别上方二维码；
  • 2.点击【关注公众号】，回复上方关键字领取学习资料。
更多>>
更多内容
更多>>
更多公开课>>
更多>>
更多资料
我要
反馈 返回
首页
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

京ICP证050421号 京ICP备05067669号-2 京公网安备11010802017616号 网络视听许可证0110531号 京网文(2016)1303-163号

Copyright © 2011-2018 新东方教育科技集团有限公司, All Rights Reserved

违法和不良信息举报电话: 010-81401500 举报邮箱: sec@xdfzx.com 网上有害信息举报专区