GMAT申友句子改错SC题库-Hurricanes at first begin traveling from east to west, because that direction is the way the prevailing winds-OG2022-真题答案解析

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Hurricanes at first begin traveling from east to west, because that direction is the way the prevailing winds in the tropics blow, but they then veer off toward higher latitudes, in many cases changing direction toward the east before dissipating over the colder, more northerly waters or over land.

A.Hurricanes at first begin traveling from east to west, because that direction is the way the prevailing winds in the tropics blow, but

B.At first, hurricanes travel from east to west, because that is the direction of the prevailing winds in the tropics, but

C.While hurricanes travel from east to west at first, the direction of the prevailing winds blowing in the tropics, and

D.Because hurricanes at first travel from east to west, since it is the direction of the prevailing winds in the tropics,

E.Hurricanes, beginning by traveling from east to west, because this is the direction of the prevailing winds in the tropics,

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答案：

but连接了

两个并列句，前面一个是主从句，主句是Hurricanes begin traveling...,because引导了原因状语从句that direction is the way；第二个分句是they veer off, they指代第一个分句的主语Hurricanes。句子读完，发现第一个分句的从句部分direction和way的语义重复，主句部分at first和begin的语义也重复，因此A选项可以排除。 B选项避免了A的语义重复问题，结构也正确，that单独使用，指代from east to west，而不是要去取代前文提到的一个词，所以不需要加介词短语或定语从句限定，单独用也是没问题的。 C选项第一个分句的结构是“while 从句，名词短语”，是错误结构，正确应为“while 从句，主句”；另外，两个分句的连接词用and替换but无法表达出风向转换的转折语义。 D句子结构为because…, since…, main clause. 如果一个句子中有两个原因状语从句要并列，应该用and连接起来，句子结构错。另外，句子从语义上来说，飓风最初自东向西吹和后来改变风向之间并不是因果关系，因此逻辑连词错。 E选项句子结构为hurricanes, because…, they veer off. 主语hurricanes缺少谓语动词，句子结构错。句子的意思是：最初，飓风是自东向西吹的，因为那是热带盛行风的风向，但是随后当飓风到达更高纬度地区的时候，风向就改变了，很多情况下会向东吹，到达更北地区的寒冷水域或者陆地上空时就消散了。总的来说，这道题判断清楚每个选项的句子结构，稍微注意语义重复的问题就可以选对。答案为B