人称代词的用法
    人称代词之主、宾格的替换
    代词的指代问题
    并列人称代词的排列顺序
    物主代词
    双重所有格
    反身代词
    相互代词
    指示代词
    疑问代词
    关系代词
    every,no,all,both,...
    none,few,some,any,...
    代词比较辩异one,that和it
    one/another/the other
    "the"的妙用
    anyone/any one;...
    both,either,neither,...
    many, much
    few,little,a few,...
    ======
    近来谁也没有见过他，这一情况令办公室所有的人不安。
    形容词宾语：I am glad that you are
    satisfied with your job. 你对工作满意我感到很高兴。
    2）That-从句作主语通常用it作先行词，而将that-从句置于句末。例如：
    It is quite clear that the whole project is
    doomed to failure. 很清楚，整个计划注定要失败。
    It's a pity that you should have to leave. 你非走不可真是件憾事。
    用it作形式主语的that-从句有以下四种不同的搭配关系：
    a. It + be +形容词+ that-从句
    It is necessary that…
    有必要……
    It is important that…
    重要的是……
    It is obvious that…
    很明显……
    b. It + be + -ed 分词+ that-从句
    It is believed that… 人们相信……
    It is known to all that… 从所周知……
    It has been decided that… 已决定……
    c. It + be +名词+ that-从句
    It is common knowledge that… ……是常识
    It is a surprise that…
    令人惊奇的是……
    It is a fact that…
    事实是……