2021考研英語長(zhǎng)難句復(fù)習(xí)（六十九）

　　

　　What researchers such as Ransom Myers and Boris Worm have shown is just how fast things are changing..

　?、賂hat the seas are being overfished has been known for years.

　?、賂hat the seas are being overfished has been known for years.

　?、赪hat researchers such as Ransom Myers and Boris Worm have shown is just how fast things are changing.

　　③They have looked at half a century of data from fisheries around the world.

　?、躎heir methods do not attempt to estimate the actual biomass (the amount of living biological matter) of fish species in particular parts of the ocean, but rather changes in that biomass over time.

　　⑤According to their latest paper published in Nature, the biomass of large predators (animals that kill and eat other animals) in a new fishery is reduced on average by 80% within 15 years of the start of exploitation.

　?、轎n some long-fished areas, it has halved again since then.

　　參考譯文

　?、?現(xiàn)象：總)人們很多年前就已經(jīng)知曉海洋被過度捕撈這個(gè)事實(shí)。

　?、?具體：分)諸如蘭森姆·邁爾斯和鮑里斯·沃爾姆這樣的研究者所說明的也僅僅是情形變化有多快。

　　③(例：分1)他們研究了全世界半個(gè)世紀(jì)里漁場(chǎng)的數(shù)據(jù)。

　?、?并列：分2)他們的方法不是試圖確切估計(jì)在特定海域中魚類的生物量(活生物物種的數(shù)量)，而是隨著時(shí)間推移這些生物量的變化。

　?、?并列：分3)根據(jù)他們?cè)凇蹲匀弧冯s志上發(fā)表的最 新論文，一個(gè)新的漁場(chǎng)在被開發(fā)后的 15 年中大型捕食動(dòng)物的生物量平均減少了 80%。

　?、?并列：分4)在一些長(zhǎng)期捕魚的地區(qū)，那基數(shù)之上又減少了一半。