The continental United States receives an average of 30 inches of precipitation a year; transpiration from soil and from plants returns approximately 21 of the 30 inches to the atmosphere, while the balance of 9 inches contributes to the flow of streams and rivers.
transpiration from soil and from plants returns approximately 21 of the 30 inches to the atmosphere, while the balance of 9 inches contributes to the flow
even though transpiration from soil and from plants returns approximately 21 of the 30 inches to the atmosphere, the remainder of 9 inches contribute to the flowing
although transpiration from soil and from plants return approximately 21 of the 30 inches to the atmosphere, the balance of 9 inches contribute to the flowing
with transpiration from soil and from plants to return approximately 21 inches to the atmosphere, the rest of the 9 inches contributes to the flow
as transpiration from soil and from plants return approximately 21 of the 30 inches to the atmosphere, the rest of the 9 inches contribute to the flow
题目分析:
本题的意思是:美国大陆地区受到每年30 inch的降雨量;从土壤和植物中的蒸发大概将21 inch还给大气,剩下的9 inch会提供给河流。
选项分析:
A选项:Correct. 本选项在语法和逻辑上均是正确的。
B选项:even though连接的两个小句必须呈现转折关系。在本题中,“土壤和植物中的蒸发大概将21 inch还给大气”和“剩下的9 inch会提供给河流”之间应该仅仅是同时发生的两件事,两者之间并没有强烈的转折关系,因此需要用while而不是even though。另外,the remainder of 9 inches contribute to the flowing of streams and rivers这句话的主谓不一致。其主语为remainder,是单数,所以谓语动词contribute也应该为单数。
C选项:although也表转折,该错误同(B);选项中两个小句均具有主谓一致的错误。
D选项:本选项具有一定的迷惑性。with transpiration from soil and from plants to return approximately 21 inches to the atmosphere是一个独立主格结构。我们至少需要将其中的不定式短语to return approximately 21 inches to the atmosphere改为分词短语returning approximately 21 inches to the atmosphere,这点考查了不定式和ing的区别。用之于本题,主句the rest of the 9 inches contributes to the flow of streams and rivers和return句分属两个不同的方面(水的两个去处),所以主句的发生不会引起从句状态的改变,应选择非不定式的选项。
E选项:主谓一致错误同(C)。
主谓一致排除BCE
D,with部分作状语,但是两句话间并不存在修饰关系,
A correct
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