2021考研英語長難句復(fù)習(xí)（六十八）

　　

　　That matters because theory suggests that the maximum sustainable yield that can be cropped from a fishery comes when the biomass of a target species is about 50% of its original levels.

　　①Dr. Myers and Dr. Worm argue that their work gives a correct baseline, which future management efforts must take into account.

　?、赥hey believe the data support an idea current among marine biologists, that of the “shifting baseline.”

　　③The notion is that people have failed to detect the massive changes which have happened in the ocean because they have been looking back only a relatively short time into the past.

　?、躎hat matters because theory suggests that the maximum sustainable yield that can be cropped from a fishery comes when the biomass of a target species is about 50% of its original levels.

　　⑤Most fisheries are well below that, which is a bad way to do business.

　　參考譯文

　?、?觀點(diǎn)：總)邁爾斯博士和沃爾姆博士認(rèn)為他們的工作將提供一個準(zhǔn)確的捕撈數(shù)量基線，它是未來漁業(yè)管理層必須要考慮的事情。

　?、?具體：分1)他們認(rèn)為這些數(shù)據(jù)支持了現(xiàn)在海洋生物學(xué)家的一種觀點(diǎn)，即“變化中的基線”。

　　③(并列：分2)這種觀點(diǎn)認(rèn)為人們還沒發(fā)覺海洋中的巨大變化，因?yàn)樗麄冎活櫫诉^去相當(dāng)短的一段時(shí)期的情況。

　?、?并列：分3)而這很重要，因?yàn)槔碚撜J(rèn)為當(dāng)目標(biāo)物種的生物量達(dá)到原始基數(shù)的 50%左右時(shí)，從漁場中能夠獲得最 大的可持續(xù)產(chǎn)量。

　?、?并列：分4)大部分漁場都遠(yuǎn)沒達(dá)到這個水平，這對于漁業(yè)而言是很不利的。