以下是gre阅读长难句实例分析。gre长难句一直都是考生比较头疼的一个问题，不是因为gre考试专门考察这部分，而是在gre阅读中需要明白这些长难句才能理解整篇文章的意思。
Not only are liver transplants never rejected，but they even induce a state of donor-specific unresponsiveness in which subsequent transplants of other organs，such as skin，from that donor are accepted permanently.
但是，我们已经发现，在许多种老鼠之间，这些移植法的常规并没有被肝脏移植物所遵循。肝脏移植物非但从没遭到过排斥，甚至还诱发了一种供者特异性无应答状态，在此状态中，随后来自那个供者其它器官的`移植物，如皮肤，会永久地被接受。
难句类型：复杂修饰、插入语、倒装
解释：Not only放在句首时谓语被提前，这种倒装对我们的读者来讲不算什么新鲜事。干扰度比较大的是在修饰unresponsiveness的定语从句in which subsequent transplants of other organs, such as skin, from that donor are accepted permanently中，插入语such as skin和前面的transplants搭配的from that donor共同作用，反复地打断读者的思路，使得从句中主语和谓语不能连贯。
意群训练：Not only are liver transplants never rejected，but they even induce a state of donor-specific unresponsiveness in which subsequent transplants of other organs，such as skin，from that donor are accepted permanently.
