If a single strain of plant is used for a given crop over a wide area, a practic

游客2024-01-13  7

问题 If a single strain of plant is used for a given crop over a wide area, a practice fostered by modern seed-marketing methods, it increases the likelihood that the impact of single crop disease or pest will be disastrous.

选项 A、If a single strain of plant is used for a given crop over a wide area, a practice fostered by modern seed-marketing methods, it
B、If a single strain of plant is used for a given crop over a wide area, as is fostered by modern seed-marketing methods, it
C、A practice fostered by modern seed-marketing methods, a single strain of plant used for a given crop over a wide area,
D、A single strain of plant used for a given crop over a wide area, a practice fostered by modern seed-marketing methods,
E、The use of a single strain of plant for a given crop over a wide area, a practice fostered by modern seed-marketing methods,

答案 E

解析 A中it指代有误,它应优先指代前面的a single strain of plant,而不是a practice fosteredby modern seed marketing-methods(而只有指代后者,it才能与后面的动词increases搭配);退一步说,就算能指代,两个相同意思的词紧接在一起是重复;B中:在as一章中,曾提到as可指代前面的整个句子,但把其代入作主语,与谓语is foster是搭配不起来的;同时,it找不到指代对象(a strain或an area都不能作increase的动作执行者);C中:逻辑关系错误。从语法上看,名词短语a single strain of plant应该是对主语a practice的同位解释,实际上,这两者属不同概念,作同位语是不可能的;D同理,a practice短语也不能作前者的同位解释,而若Asingle strain of plant作为主句的主语则与动词increases在逻辑上搭配不当。E为正确答案。theuse和a practice就属同类,同时a practice的内涵远远大于the use,因而这里的同位解释不仅符合语法原则,又符合逻辑,同时the use和increases之间的搭配得当,表达了句意。
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