托福阅读长难句分析:most seagrass
systems...在托福阅读考试中,考生遇到一些难点的长句无法理解也是常见的情况,那么接下来就跟着本文来看下长难句:most seagrass
systems...的分析吧。
原句案例:
Since most seagrass systems are depositional environments, they eventually
accumulate organic material that leads to the creation of fine-grained sediments
with a higher organic content than that of the surrounding unvegetated
environment.
结构分析:
复合句。Since 引导原因状语从句,主句中包含that引导的定语从句。
句子分析:
原因状语从句Since most seagrass systems are depositional environments中,most
seagrass systems 作主语,are depositional
environment为系表结构。本部分意思:因为大多数的海草系统属于沉积性环境。
they eventually accumulate organic material… surrounding unvegetated
environment为主句。其中,they是主语,accumulate是谓语,organic
material是宾语。本部分意思:它们*终会积累有机物质。
that引导的定语从句修饰organic material,其中,that作主语,leads to为谓语,the creation是宾语,of
fine-grained sediments with a higher organic
content为定语修饰宾语。本部分意思:会产生有机物质含量更高的细颗粒沉淀物。
介词短语than that of the surrounding unvegetated
environment作定语。其中,that是代词,指的是organic content,of the surrounding unvegetated
environment 定语,修饰that。本部分意思:比起周围无植被区的细颗粒状沉淀物的有机物质含量。
参考翻译:
由于大多数海草系统属于沉积性环境,它们*终会积累有机物质,进而形成有机物质含量高于周围无植被区的细颗粒状沉淀物。
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