例287　Some individuals would therefore not have been caught, since no baited hooks would have been available to trap them, leading to an underestimate of fish stocks in the past.

【结构分析】句子的主干是Some individuals would therefore not have been caught，后面是个时间状语从句since no baited hooks would have been available to trap them，后面是分词状语做结果状语，也就是leading to an underestimate of fish stocks in the past。

【亮点回放】此句话的亮点在于时间状语从句里面套有分词状语，该分词状语表示结果，分词状语表示结果是个常见的语法，比如I go to the store, purchasing a beautiful i-phone。

【核心词汇】

some individuals　有些种鱼类

baited hooks　带诱饵的鱼钩

trap　抓住

an underestimate of fish stocks　低估了鱼的储量

【参考译文】有些种鱼类因此可能会逃过一劫，因为那时没有带诱饵的鱼钩抓它们，这样就低估了过去的鱼的储量。