1.　Her husband, Bill, is a scientist. (Bill 为插入成份)

4.　It was her money, not her charm or personality, that first attracted him. (为的是她的财富，不是为了她的妩媚或个性) ------------------------------------------------------------------- 2.3.3　句中有非限制性的词或短语之类，以逗号标出以示插入成份：

3.　Some say the world will end in ice, not fire. (是冰，不是火)

2.　He wanted to see Mr. Wu, not Mr. Hu. (是吴先生，不是胡先生)

1.　Jane, not Shirley, will attend the meeting.　(是 Jane，不是 Shirley)

2.　 No, you may not come with us.　(插入 No) ------------------------------------------------------------------- 2.3.2　用逗号分开“乃此非彼”的结构：

1.　He knew, however, that no one would listen to his warning.　( 插入 however)

2.3.1　句子里插入的词、短语、子句等,加上逗号以示插入成份：

2.　 He likes all extracurricular activities, especially basketball playing. =========================================================== 2.3　突出句子中某个插入成份(Parenthetical elements): 所谓插入成份，是指在句子中去掉它也可成立的成份。插入成份一般是感叹词、状 语、副词子句等。

1.　 They enjoy outdoor sports, such as hiking and riding.