【问】 Sitting up late last night，Tom not only read the assignment but also many poems byone of his favourite poets.(攻读硕士学位研究生入学考试英语试题，85A)

我看不出上面的句子有什么错误。

【答】 not only所连接的成分和but (also)所连接的成分要对等，即名词对名词、动词对动词、介词短语对介词短语等。例如：

1. Shakespeare was not only a writer，but (also) an actor. (LDCE)

莎士比亚不仅是一个作家，还是一个演员。

2. Newspapers exert such tremendous influence that they can not only bring about majorchanges to the lives of ordinary people but can even overthrow a government.(NewConcept English，Book 3，L.45)

报纸的影响极大，不仅能使普通老百姓的生活发生重大变化，而且还能推翻政府。

3. Gifts poured in not only from unknown people，but from baby food and soap manufac-turers who wished to advertise their products.(New Concept English，Book 3. L.45)

礼物大批涌入，不仅来自素不相识的人们，而且来自婴儿食品厂与肥皂厂厂主，因为他们要宣传他们的产品。

4. Sociologists not only urban societies many societies which are most of us. (TOEFL， 79. 5—8)

5. Shops cater for the do-it-yourself craze not only by running special advisory services fornovices，but by offering consumers bits and pieces which they can assemble at home.

(New Concept English，Book 3，L. 46)

商店不仅为赶“自己动手”浪潮的新手提供咨询服务，而且还向顾客出售可在家里自行组装的零件和部件。

6. But people who are cut off not only from foreign tourists，but even from their own countrymen can be hostile to travellers. (New Concept English，Book 3，L. 48)

但是某些不接触外国旅游者、甚至连与本国人也很少往来的人们，可能会对旅游者持极不友好的态度。

(参见parallelism)