雅思长难句一直是雅思阅读高分的拦路虎，新东方在线雅思频道为大家准备了100句雅思长难句，供大家学习。每天5句，由量变到质变，助大家攻克雅思长难句。本文是76-80句。

　　76. A very specialized feeding adaptation in zooplankton is that of the tadpolelike appendicularian who lives in a walnut-sized (or smaller) balloon of mucus equipped with filters that capture and concentrate phytoplankton.

　　浮游动物体内一种极特殊的进食适应性变化是蝌蚪状的尾海鞘纲动物(appendicularian)的那种适应性变化，而尾海鞘纲动物则存活于核桃大小(或更小)的黏液球囊内，装备有过滤器，用以捕捉和集中浮游植物。

　　77. These historians，however，have analyzed less fully the development of specifically feminist ideas and activities during the same period.

　　但是，这些史学家还不曾充分地分析同一时期中那些具体的女权主义思想和活动的发展。

　　78. Apparently most massive stars manage to lose sufficient material that their masses drop below the critical value of 1.4 M before they exhaust their nuclear fuel.

　　显然，大多数的巨星能够失去足够多的物质以至于在燃尽其核燃料以前他们的质量下降到关键值1.4M以下。难在：sufficient ……that…… = so much (many ) …… that……

　　79. This is so even though armed forces operate in an ethos of institutional change oriented toward occupational equality and under the federal sanction of equal pay for equal work.

　　即使是武装部队是在一种趋向职业平等的制度变迁的风气中运作的时候，而且即使部队是在联邦政府的同工同酬的约束下运行的时候，情况仍然是这样。

　　80. An impact (on the Mars) capable of ejecting a fragment of the Martian surface into an Earth-intersecting orbit is even less probable than such an event on the Moon, in view of the Moon's smaller size and closer proximity to Earth.

　　一个能够把活性表面的碎片射入地球交叉轨道的碰撞发生的可能性甚至小于这种事件在月亮上发生的可能性，考虑到月亮更小的尺寸及其与地球接近的程度。