托福二群二维码扫码免费下载资料
托福学习中心电话
查看: 325|回复: 0

[回忆解析] 2016年5月7日托福阅读真题相关资料背景

[复制链接]
发表于 2016-5-9 10:51:51 | 显示全部楼层 |阅读模式
托福VIP会员
2016年5月7日的托福考试已经结束了,今天小编针对此次考试的阅读真题为大家送来了相关的资料背景,以帮助考生们透彻的了解此次真题的内容。
点击下方二维码下载真题解析


第一篇

  题材划分:环境类

相关背景资料:

  Soilsalinity is the salt content in thesoil; the process of increasing the salt content is known as salinization. Saltsoccur naturally within soils and water. Salination can be caused by naturalprocesses such as mineral weathering or by the gradual withdrawal of an ocean.It can also come about though artificial processes such as irrigation.

  Causes of soil salinity

  The excess accumulation of salts, typicallymost pronounced at the soil surface, can result in salt-affected soils. Saltsmay rise to the soil surface by capillary transport from a salt-laden watertable and then accumulate due to evaporation. They can also become concentratedin soils due to human activity, for example the use of potassium as fertilizer,which can form sylvite, a naturally occurring salt. As soil salinity increases,salt effects can result in degradation of soils and vegetation.

  Salinization as a processcan result from:

  -high levels of salt inwater.

  -landscape features thatallow salts to become mobile (movement of water table).

  -climatic trends that favoraccumulation.

  -human activities such asland clearing.

  -Irrigation - salt runofffrom streets (in winter if the streets are salted for snow)

第二篇

  题材划分:地质类

  主要内容:火星是否存在生命体

相关背景资料:

  

游客,如果您要查看本帖隐藏内容请回复



托福老师在线讲解,最新的托福机经和海量资料免费下载,同期的考生在线交流,抓紧时间加入吧!托福备考8群 251285919


相关链接地址:
2016年5月7日托福口语真题
2016年5月7日托福写作真题回顾
2016年5月7日托福听力真题回顾
2016年5月7日托福阅读真题回顾
2016年5月7日托福阅读真题及答案解析

您需要登录后才可以回帖 登录 | 注册账号

本版积分规则

回到顶端

课程咨询电话:400-920-8185 课程咨询微信:13734433272 QQ|手机版|小黑屋|Archiver|小马过河 ( 京ICP备14009560号-3  

京公网安备 11010802021370号

GMT+8, 2018-6-18 19:46 , Processed in 0.100684 second(s), 31 queries .

机经索取