(三) 代词的单复数，代词的性别
在考试中如果代词打横线，代词错误的概率是非常高的，因此代词打横线，应该先看代词有没有错。
例：The continental divide refers to an imaginary line in the North American Rockies
that divides the waters flowing into the Atlantic Ocean from it flowing into the
A B C D
Pacific.
分析：D错，应改为those。D指代复数名词waters, it是单数，显然是错误的，根据习惯故改为those。注意waters一词并没有错，它指江湖河海中的大片水域，可用复数形式。
Water作为水是不可数名词，waters表示水域，通常使用复数形式，作主语谓语动词用复数。
Work作为工作是不可数名词，work作为作品，可数不可数都可以，例如：
Many of his works= much of his work, work都表示作品
例：In 1920 the presidential candidate Warren Harding coined
A
the word “normalcy” to express social and
B
economic conditions they promised the nation.
C D
分析：D错，应改为he。动作promised是由Warren Harding发出来的，故用第三人称单数he来指代。例：Many critics believe that Amy Lwell' s most important
A
work is not poetry, but his biography, John
B C
Keats, published the year of her death.
D
分析：C错，应改为her。his指男性，显然是错误的，应改为her与后面的her同指Amy Lowell.