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SAT语法句子改进练习题(68)

2018-12-14 11:30:00来源:网络

  新东方在线SAT频道为大家带来“SAT语法句子改进练习题(68)”一文,希望对大家SAT备考有所帮助。更多精彩尽请关注新东方在线SAT频道!

  68. 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

  Answer to Question 68

  In choice A, the construction from hydrocarbons and nitrogen oxides ... react is ungrammatical. In B, the best choice, the conjunction when replaces the preposition/row, producing a grammatical and logical statement. In choice C, the use of the conjunction and results in the illogical assertion that the formation of ozone in the atmosphere happens in addition to, rather than as a result of, its formation when hydrocarbons and nitrogen oxide react with sunlight. Choice D omits the main verb, is, leaving a sentence fragment. E compounds the error of D with that of A.

  以上就为大家整理的“SAT语法句子改进练习题(68)”,更多精彩内容,请关注新东方在线SAT频道。

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