8.1

今日长难句

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. （Text3. 2006）

proportion / prəˈpɔ:ʃn / n.比例；倍数关系

record / riˈkɔ:d / v.标明；显示

结构分析

你需要知道

1.that引导宾语从句时，可以省略。

2.that在定语从句中作宾语的时候，可以省略。

3.介词短语做后置定语，修饰proportion。

4.分句2中the one承上指代difference，过去分词结构recorded by...修饰the one。

翻译

这就意味着更高比例的海洋生物正在被捕获，因此现在和过去之间的真正差异很可能比用捕捞量变化所记录的要更糟糕。

预告明日长难句

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.（Text3. 2006）