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标题: 请教OG10 的68题 [打印本页]

作者: assurance 时间: 2006-5-12 07:21 标题: 请教OG10 的68题

68. Often vision as smog, ozone is formed in the atmosphere from hydrocarbons and nitrogen oxides, two major pollutants emitted by automobiles, react with sunight.

(A) ozone is formed in the atmosphere from

(B) ozone is formed in the atmosphere when

(D) ozone, formed in the atmosphere when

(E) ozone, formed in the atmosphere from

In choice A, the construction from hydrocarbons and nitrogen oxides..react is ungrammatical.

我不太清楚这个句子的结构,为什么A的表达不合语法呢? 谢谢了.

作者: leadership 时间: 2006-5-12 13:58

68. Often vision as smog, ozone is formed in the atmosphere from hydrocarbons and nitrogen oxides, two major pollutants emitted by automobiles, react with sunight.

(A) ozone is formed in the atmosphere from

(B) ozone is formed in the atmosphere when

(D) ozone, formed in the atmosphere when

(E) ozone, formed in the atmosphere from

In choice A, the construction from hydrocarbons and nitrogen oxides..react is ungrammatical.

我不太清楚这个句子的结构,为什么A的表达不合语法呢? 谢谢了.

react 是动词。所以 A补上会有两个动词，且每连接词- error.

ozone 不 react with sunight. 所以：d。E错。

结构 c。错 and when . 错

作者: detectiveyan 时间: 2006-5-15 14:38

同意楼上.

two major pollutants emitted by automobiles 是插入语

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