20天搞定100个雅思阅读长难句(10)

雅思长难句一直是雅思阅读高分的拦路虎，同学们需要学会层次分析法，将长句子拆分开来，就好理解多了哦。希望以下内容能够对大家的雅思学习有所帮助!

46. It is one of nature's great ironies that the availability of nitrogen in the soil frequently sets an upper limit on plant growth even though the plants' leaves are bathed in a sea of nitrogen gas.

下述情形真可谓是自然界的一个莫大讽刺：土壤中所能获得的氮肥量往往对植物的生长构成了一个上限，虽然植物的叶子被沐浴在一片氮气的海洋中。

47. Unless they succeed，the yield gains of the Green Revolution will be largely lost even if the genes in legumes that equip those plants to enter into a symbiosis with nitrogen fixers are identified and isolated，and even if the transfer of those gene complexes，once they are found， becomes possible.

除非他们能取得成功，不然的话，绿色革命的产量收益将在很大程度上损失殆尽，即使豆科植物中使这些植物有条件进入到与固氮细菌共生关系的基因可被辨识出来和分离开来的话，且即使这些基因综合体(gene complex)，一旦被发现之后，其移植得以成为可能的话。

48. Its subject(to use Maynard Mack's categories)is "life-as-spectacle，" for readers, diverted by its various incidents，observe its hero Odysseus primarily from without;the tragic Iliad，however，presents "life-as-experience"：readers are asked to identify with the mind of Achilles，whose motivations render him a not particularly likable hero.

其主题〔若借鉴梅纳德。迈克(Maynard Mack)的两个分类范畴的话〕是"人生作为外部景象"，因为读者的注意力被作品那形形色色的事件所分散，主要是从外部来观察其主人公奥德修斯(Odyssus)的;然而，富于悲剧色彩的《伊利亚特》所表现的则是"人生作为内心体验"：读者被要求与阿基琉斯(Achilles)的心灵产生共鸣，而其行为动机却致使他变作一个并非特别惹人喜爱的主人公。 (从分号后的语句推理出前面的意思)注：hero:主人公;without:外部;likable:有吸引力的

49. Most striking among the many asymmetries evident in an adult flatfish is eye placement： bore maturity one eye migrates，so that in an adult flatfish both eyes are on the same side of the head.

在一条成年比目鱼身上显著存在的诸多不对称(asymmetry)特征中，最为吸人注目的是眼睛的摆位：在成年之前，一只眼睛发生移动，因此在成年比目鱼身上，两只眼睛均位于头部的同一侧面。

50. A critique of Handlin's interpretation of why legal slavery did not appear until the 1660's suggests that assumptions about the relation between slavery and racial prejudice should be reexamined , and that explanations for the different treatment of Black slaves in North and South America should be expanded .

一个对于H的关于为何法律上的奴隶制没有在17世纪60年代以前出现的原因所作解释的批评显示，关于奴隶制和种族偏见之间的关系的假说应当重新检查，而且显示出，对于在北美和南美之间的对黑怒的不同处理的解释应当被扩展。