扫描二维码，直接登录
题库 / OG2018V-SC-270
In many of the world’s regions, increasing pressure on water resources has resulted both from expanding development, changes in climate, and from pollution, so that the future supply in some of the more arid areas is a concern going forward.
both from expanding development, changes in climate, and from pollution, so that the future supply in some of the more arid areas is a concern going forward
both from expanding development or changes in climate, and pollution, so that future supplies in some of the more arid areas are a concern
from expanding development, changes in climate, and also from pollution, so that the future supply in some of the more arid areas is a matter of concern going forward
from expanding development, changes in climate, and pollution, so that future supplies in some of the more arid areas are a concern
from expansion of development, changes in climate, and from pollution, so that supplies in some of the more arid areas are a future concern
注意平行结构，保持平行
三者平行不能用both and
平行结构D完美
The preposition both creates confusion since it indicates two factors, when the sentence actually lists three. If expanding development and changes in climate are supposed to be grouped together—implausibly—as a single factor, they should be conjoined by and, not separated by commas.
A选项：both from A, B, and from C,列出了三个并列成分，所以错误；
B选项：both from A or B, and C, "and C"前面的逗号使句子关系不清晰；
C选项：两个from使句子意思不清晰；
E选项：from破坏了平行结构，使意思不清晰；
我的理解是，首先，increasing pressure是三个方面导致的，expanding，changes，pollution
1.Both的用法一般是在两个独立的事件中起连接作用both A and B，而文中是三个，不符合both的一般用法
2. result from A,B,andC 平行结构，result from a，b，and from c 明显后面插入的from显的很多余。所以本题的考点都在前半部分，后半部分实际并没有考点，所以分析试题也要注意。
句意：因为增加的供水压力导致a,b,c（情况），所以一些地区的供水称为问题
带线句：原因句补语，所以句全句；1.and并列考点；2.so tha
are a concern 也可以吗？
觉得还是要根据语义吧，future supplies是一个问题，不是很多问题，所以用a concern就可以
登录 或 注册 后可以参加讨论
为什么C不对啊，是因为a matter of concern吗
D选项的平行结构更完整
A 和 C 都有语义重复，future 和going forward redundant了。
OG里经常说 and also 很冗杂
我的解题方法是going forward是一个修饰成分，放在句尾所以可以修饰很多前面的名词matter或者concern，这样导致修饰关系的不明确，所以C不正确。而A，B最明显的错误在于both的用法
A, and also B, 是可以的； both A and also B 是冗杂的
登录 或 注册 后可以参加讨论