大学英语六级改错指导：代词

代词主要考查其与所指代的名词是否一致；其次就是考查代词的混淆，例如作形式主语的话，要使用it，而that没有这个功能。

考点例析：

例1：The new houses, typically it the suburbs, were
often small and more or less identical, but it satisfied S9.________
a deep need.

解析：此处的代词指代的是前面的new houses，所以应该把it改为they.

例2：During the 1980s’ culture wars, school systems
across the country pulled some books from
library shelves because its content was deemed by 70._________
parents and teachers to be inappropriate.

解析：content前面的物主代词对应的是上一句的some books，所以应该用复数形式的物主代词their。
例3：Traditionally, the American farmer has always been independent
and hard-working. In the eighteenth century farmers were quite
self-sufficient. The farm family grew and made almost nothing it S1._______
needed. The surplus crop would be sold to buy a few items in the
local general store.

解析：上一句说“在18世纪农民是自给自足的”，那么接下去应该是“农民生产自己生活的一切东西”才符合逻辑，所以应该将nothing改成everything.