标题: 求NN帮忙啊og13 88题 [打印本页] 作者: xxy931211 时间: 2013-10-30 10:54 标题: 求NN帮忙啊og13 88题 Often visible as smog, ozone is formed in the atmosphere from hydrocarbons and nitrogen oxides, two major pollutants emitted by automobiles, react with sunlight.
(A) ozone is formed in the atmosphere from
(B) ozone is formed in the atmosphere when
(C) ozone is formed in the atmosphere, and when
(D) ozone, formed in the atmosphere when
(E) ozone, formed in the atmosphere from
请教下B的and when 为什么错了。我的理解是and后面要加完整的句子，所以不正确，我的理解对吗？og 的解释是And when distorts the meaning, suggesting that ozone is formed in two ways.我不明白怎么就formed in two ways了
作者: xinhuimei1122 时间: 2014-1-5 21:24 http://forum.chasedream.com/foru ... amp;authorid=692707作者: kiwifoodtown 时间: 2014-1-6 09:24
lz是不是要问C选项错在哪里呢？OG这么回答不是从语法结构上来说明错误，而是从一个最普通的错误--句子意思的错误来分析的，以为C选项这样一来，就变成了in the atmosphere，and when。。。这两个状语的并列。所以，给读者的第一感觉就是ozone is formed in two ways。