2021考研英语长难句复习（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.

　　①Dr. Worm acknowledges that these figures are conservative.

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

　　③Today’s vessels can find their prey using satellites and sonar, which were not available 50 years ago.

　　④That 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.

　　⑥Some 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.

　　⑦Furthermore, in the early days of longline fishing, a lot of fish were lost to sharks after they had been hooked.

　　⑧That is no longer a problem, because there are fewer sharks around now

　　参考译文

　　①(观点：总1) 沃尔姆博士承认这些数据是保守的。

　　②(原因：总2)原因之一是捕鱼技术已经有所突破。

　　③(并列：分1)今天的船只可以使用 50 年前还没有的卫星和声波定位仪来寻找猎物。

　　④(论点：总2)这就意味着更高比例的海洋物种正在被捕捞，因此现在和过去之间的真正差异可能比用捕捞规模变化所记录的要更糟糕。

　　⑤(具体：分1)早些时候，采用多钩长线法本应该捕到更多的鱼。

　　⑥(并列：分2)个别的鱼可能会捕捉不到，是因为没有足够挂饵的钩子来捕捉它们，这导致了过去对鱼类资源量的低估。

　　⑦(并列：分3)而且，在使用多钩长线捕鱼的初期，许多鱼被钩往后又被鲨鱼夺走。

　　⑧(转折：分4)而现在这不再是一个问题，因为附近的鲨鱼更少了。