og 12 sc 84

naoyixue · 发表于 2011-4-6 12:27:52

84. 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
请问 react with sunlight 是啥成分？（另外，怎么在帖子里面划线）谢谢

aeoluseros · 发表于 2011-4-6 12:33:15

状语从句里面的动词.
, two major pollutants emitted by automobiles, --》可以略去

naoyixue · 发表于 2011-4-6 12:41:23

xiexie

大马oz · 发表于 2011-4-6 13:09:29

把选项B放进去。Often visible as smog, ozone is formed in the atmosphere when hydrocarbons and nitrogen oxides, two major pollutants emitted by automobiles, react with sunlight.

主句 ozone is formed in the atmosphere

时间状语从句由when引导，主语hydrocarbons and nitrogen oxides, 插入语two major pollutants emitted by automobiles, 谓语react with sunlight.

naoyixue · 发表于 2011-4-6 15:05:11

谢谢大马orz,其实当初就在纠结这个react到底是啥成分，哈哈，谢谢

gabbyshen · 发表于 2011-12-2 10:16:34

DING

楷楷楷 · 发表于 2013-9-17 22:17:13

Ozone is formed in the atmosphere when hydrocarbons and nitrogen oxides react with sunlight.

本贴相关题目 OG-2015-SC-88OG-2015-SC-88
OG-13-SC-88
OG-12-SC-84
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og 12 sc 84

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正在浏览此版块的会员 ()

本贴相关题目 OG-2015-SC-88OG-2015-SC-88
OG-13-SC-88
OG-12-SC-84
... (FPXT)