课程咨询

GMAT首页 GMAT课程 GMAT动态 0元讲座 GMAT模考网站

新东方在线 > GMAT > GMAT阅读 > 正文
美研留学资料领取

扫码添加助教

免费领取

备考资料大礼包

扫码关注公众号

GMAT阅读题型练习（1779）

2018-06-14 20:11:00来源：网络

　　本文来自GMAT阅读题库(点击查看更多)，为考生提供GMAT阅读题目练习及答案解析，希望对大家GMAT备考有所帮助。点击下载更多GMAT备考必备资料。更多精彩尽请关注新东方在线GMAT频道!

　　GMAT阅读题目内容

　　People associate global warming with temperature, but the phrase is misleading—it fails to mention the relevance of water. Nearly every significant indicator of hydrological activity—rainfall, snowmelt, glacial melt—is changing at an accelerating pace (one can arbitrarily pick any point of the hydrological cycle and notice a disruption). One analysis pegged the increase in precipitation at 2 percent over the century. In water terms this sounds auspicious, promising increased supply, but the changing timing and composition of the precipitation more than neutralizes the advantage. For one thing, it is likely that more of the precipitation will fall in intense episodes, with flooding a reasonable prospect. In addition, while rainfall will increase, snowfall will decrease. Such an outcome means that in watersheds that depend on snowmelt, like the Indus, Ganges, Colorado river basins, less water will be stored as snow, and more of it will flow in the winter, when it plays no agricultural role; conversely, less of it will flow in the summer, when it is most needed. One computer model showed that on the Animas River an increase in temperature of 3.6 degrees Fahrenheit would cause runoff to rise by 85 percent from January to March, but drop by 40 percent from July to September. The rise in temperature increases the probability and intensity of spring floods and threatens dam safety, which is predicated on lower runoff projections. Dams in arid areas also may face increased sedimentation, since a 10 percent annual increase in precipitation can double the volume of sediment washed into rivers.

　　The consequences multiply. Soil moisture will intensify at the highest northern latitudes, where precipitation will grow far more than evaporation and plant transpiration but where agriculture is nonexistent. At the same time, precipitation will drop over northern mid-latitude continents in summer months, when ample soil moisture is an agricultural necessity. Meanwhile the sea level will continue to rise as temperatures warm, accelerating saline contamination of freshwater aquifers and river deltas. The temperature will cause increased evaporation, which in turn will lead to a greater incidence of drought.

　　Perhaps most disturbing of all, the hydrologic cycle is becoming increasingly unpredictable. This means that the last century’s hydrological cycle—the set of assumptions about water on which modern irrigation is based—has become unreliable. Build a dam too large, and it may not generate its designed power; build it too small, and it may collapse or flood. Release too little dam runoff in the spring and risk flood, as the snowmelt cascades downstream with unexpected volume; release too much and the water will not be available for farmers when they need it. At a time when water scarcity calls out for intensified planning, planning itself may be stymied.

　　1、According to the passage, the likelihood that “dams in arid areas also may face increased sedimentation” will most likely result from

　　A.an increase in precipitation

　　B.a decrease in the annual snowmelt

　　C.the rise in the average annual temperature of major rivers

　　D.a shift in the seasonality of precipitation

　　E.a rise in sea level


　

本文关键字: GMAT阅读题库 GMAT阅读题型

上一页 1 2 下一页

添加美研助教号 回复【GMAT】

获取2024GMAT考试最新复习资料

更多资料

添加美研助教号，
回复【GMAT】获取备考必看资料包

  • 1.打开手机微信【扫一扫】，识别上方二维码；
  • 2.点击【添加美研助教】，回复对应关键字领取学习资料。
更多>>
  • GMAT阅读复习的五大步骤 　　

    　　新东方在线GMAT频道为大家带来GMAT阅读复习的五大步骤，希望对大家GMAT备考有所帮助。更多精彩尽请关注新东方在线GMAT频道!　　1：原来

    来源 : 网络 2021-01-25 13:25:00 关键字 : GMAT阅读 GMAT

  • GMAT阅读背景的培养 　　

    　　新东方在线GMAT频道为大家带来GMAT阅读背景的培养，希望对大家GMAT备考有所帮助。更多精彩尽请关注新东方在线GMAT频道!　　一、经济学

    来源 : 网络 2021-01-25 13:25:00 关键字 : GMAT阅读 GMAT

  • GMAT阅读复习效率不高怎么办 　　

    　　新东方在线GMAT频道为大家带来GMAT阅读复习效率不高怎么办，希望对大家GMAT备考有所帮助。更多精彩尽请关注新东方在线GMAT频道!　　建

    来源 : 网络 2021-01-25 13:25:00 关键字 : GMAT阅读 GMAT

  • GMAT阅读提高速度的根本方法 　　

    　　新东方在线GMAT频道为大家带来GMAT阅读提高速度的根本方法，希望对大家GMAT备考有所帮助。更多精彩尽请关注新东方在线GMAT频道!　　1

    来源 : 网络 2021-01-25 13:25:00 关键字 : GMAT阅读 GMAT

  • GMAT阅读如何避免错误 　　

    　　新东方在线GMAT频道为大家带来GMAT阅读如何避免错误，希望对大家GMAT备考有所帮助。更多精彩尽请关注新东方在线GMAT频道!　　要避免GMA

    来源 : 网络 2021-01-25 13:25:00 关键字 : GMAT阅读 GMAT

  • GMAT阅读技巧的提升 　　

    　　新东方在线GMAT频道为大家带来GMAT阅读技巧的提升，希望对大家GMAT备考有所帮助。更多精彩尽请关注新东方在线GMAT频道!　　GMAT阅读推

    来源 : 网络 2021-01-25 13:25:00 关键字 : GMAT阅读 GMAT

  • GMAT阅读备考的注意事项 　　

    　　新东方在线GMAT频道为大家带来GMAT阅读备考的注意事项，希望对大家GMAT备考有所帮助。更多精彩尽请关注新东方在线GMAT频道!　　GMAT阅

    来源 : 网络 2021-01-25 13:25:00 关键字 : GMAT阅读 GMAT

  • GMAT阅读怎么提高自己的能力 　　

    　　新东方在线GMAT频道为大家带来GMAT阅读怎么提高自己的能力，希望对大家GMAT备考有所帮助。更多精彩尽请关注新东方在线GMAT频道!　　建

    来源 : 网络 2021-01-25 13:25:00 关键字 : GMAT阅读 GMAT

  • GMAT阅读长句子的备考 　　

    　　新东方在线GMAT频道为大家带来GMAT阅读长句子的备考，希望对大家GMAT备考有所帮助。更多精彩尽请关注新东方在线GMAT频道!　　1 首先

    来源 : 网络 2021-01-25 13:25:00 关键字 : GMAT阅读 GMAT

  • GMAT阅读水平怎么提高 　　

    　　新东方在线GMAT频道为大家带来GMAT阅读水平怎么提高，希望对大家GMAT备考有所帮助。更多精彩尽请关注新东方在线GMAT频道!　　下面就来

    来源 : 网络 2021-01-25 13:25:00 关键字 : GMAT阅读 GMAT

更多内容

添加美研助教号

回复【GMAT】获取备考必看资料包

新东方美研备考资料
更多>>
更多惊喜>>
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