考研英語的語法速成：代詞的指代

　　1.that的指代作用

　　that指代不可數(shù)名詞和單數(shù)可數(shù)名詞(如是復(fù)數(shù)，用those)，后面通常跟有修飾語，如出現(xiàn)在比較結(jié)構(gòu)中的that of。如

　　Conversation calls for a willingness to alternate the role of speaker with that of listener, and it calls for occasional digestive pauses by both.這里that指代前面的the role。

　　No bread eaten by men is so sweet as that earned by his own labor.

　　2.one的指代作用

　　one指代帶不定冠詞的單數(shù)可數(shù)名詞，復(fù)數(shù)為ones。the one指代帶定冠詞的單數(shù)可數(shù)名詞。如：

　　A good writer is who can express the commonplace in an uncommon way.

　　[A] that [B]he [C]one [D]this

　　答案為[C]

　　3.do的替代作用。

　　do代替動詞，注意數(shù)和時態(tài)的變化。如：

　　For him to be re-elected, what is essential is not that his policy works , but that the public believe that it does.