OG10语法268题及GWD22语法总结三十七
36. Bufo marinus toads, fierce predators that will eat frogs, lizards, and even small birds, are native to South America but were introduced into Florida during the 1930's in an attempt to control pests in the state's vast sugarcane fields.
A. are native to South America but were introduced into Florida during the 1930's in an attempt to control
B. are native in South America but were introduced into Florida during the 1930's as attempts to control
C. are natives of South America but were introduced into Florida during the 1930's in an attempt at controlling
D. had been native to South America but were introduced to Florida during the 1930's as an attempt at controlling
E. had been natives of South America but were introduced to Florida during the 1930's as attempts at controlling
1.时态 (一级拂拭D，E )
默示毕竟和继续存在的用通俗现在式；过往完成式有默示过往存在可是过往已经结束的状况In D and E, had been inaccurately implies that the toads are no longer native, or indigenous, to South America,
2.句子逻辑意思 (二级拂拭B )
Both as attempts in B and E and as an attempt in D are wrong because the attempt consists not of the toads themselves, but of their introduction into the environment. The correct phrase, in an attempt, should be completed by an infinitive (here, to control), as in A.(重要，了解若何用词，蟾蜍自己自己不是一个attempt) as sth默示作为,那么作为一定有个东东是”作为”的主语as attempts / in an attempt A as B , A和 B对等此处 toads不年夜概和 attempts对等。 In attempt to在。。。如许的一个举措中。
3.默示目标 (三级拂拭C )
默示目标用不定式比较好
4.词法：
A. were introduced into Floridaè默示介绍到……中央；introduced to Florida is unidiomatic.è默示介绍给…晓得
B. native to / native of / native in用 to合理，
C. as attempts / in an attempt A as B , A和 B对等此处 toads不年夜概和 attempts对等。 In attempt to在。。。如许的一个举措中。
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