2021考研英語(yǔ)長(zhǎng)難句復(fù)習(xí)（七十）

　　

　　That means a higher proportion of what is in the sea is being caught, so the real difference between present and past is likely to be worse than the one recorded by changes in catch sizes.

　?、貲r. Worm acknowledges that these figures are conservative.

　　②One reason for this is that fishing technology has improved.

　?、跿oday’s vessels can find their prey using satellites and sonar, which were not available 50 years ago.

　?、躎hat means a higher proportion of what is in the sea is being caught, so the real difference between present and past is likely to be worse than the one recorded by changes in catch sizes.

　　⑤In the early days, too, longlines would have been more saturated with fish.

　?、轘ome 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.

　?、逨urthermore, in the early days of longline fishing, a lot of fish were lost to sharks after they had been hooked.

　?、郥hat is no longer a problem, because there are fewer sharks around now

　　參考譯文

　　①(觀點(diǎn)：總1) 沃爾姆博士承認(rèn)這些數(shù)據(jù)是保守的。

　?、?原因：總2)原因之一是捕魚技術(shù)已經(jīng)有所突破。

　?、?并列：分1)今天的船只可以使用 50 年前還沒有的衛(wèi)星和聲波定位儀來(lái)尋找獵物。

　　④(論點(diǎn)：總2)這就意味著更高比例的海洋物種正在被捕撈，因此現(xiàn)在和過(guò)去之間的真正差異可能比用捕撈規(guī)模變化所記錄的要更糟糕。

　?、?具體：分1)早些時(shí)候，采用多鉤長(zhǎng)線法本應(yīng)該捕到更多的魚。

　?、?并列：分2)個(gè)別的魚可能會(huì)捕捉不到，是因?yàn)闆]有足夠掛餌的鉤子來(lái)捕捉它們，這導(dǎo)致了過(guò)去對(duì)魚類資源量的低估。

　?、?并列：分3)而且，在使用多鉤長(zhǎng)線捕魚的初期，許多魚被鉤往后又被鯊魚奪走。

　?、?轉(zhuǎn)折：分4)而現(xiàn)在這不再是一個(gè)問(wèn)題，因?yàn)楦浇孽忯~更少了。