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 .(4)

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。

难句类型：

复杂修饰、省略

解释：

句子的主干清楚：a critique suggests that…, and suggests that…。但是因为句子的结构复杂、修饰成分多，再加上后面的and 之后的suggests被省略，所以句子的结构很难被读出来的。

本句的suggest不再是暗示，而是显示、说明的意思，其同义词有point,indicate,imply。本句的两个suggest之后的宾语从句都根据语法要求使用了虚拟语气。

意群训练：

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.