等，都属于形式上是复数的名词，实际意义为单数名词，它们作主语时，其谓语动词要用单数形式。如：The paper works was built in 1990. / I think physics isn't easy to study.

　　7、trousers, glasses, clothes, shoes, 等词作主语时，谓语用复数，但如果这些名词前有a (the) pair of等量词修饰时，谓语动词用单数。如：My glasses are broken. / The pair of shoes under the bed is his.

　　8、"定冠词the + 形容词或分词"，表示某一类人时，动词用复数。

　　（三）就近一致原则：在英语句子中，有时谓语动词的人称和数与最近的主语保持一致。

　　1、当两个主语由either ... or, neither ... nor, whether ... or ..., not only ... but also连接时，谓语动词和邻近的主语一致。如：Either the teacher or the students are our friends. / Neither they nor he is wholly right. / Is neither he nor they wholly right?

　　2、there be句型be动词单复数取决于其后的主语。如果其后是由and连接的两个主语，则应与靠近的那个主语保持一致。如：There are two chairs and a desk in the room..

　　注意：Here引导的句子用法同上。

第二部分：练习

1. I, who____ your friend, will try my best to help you with your English.

　A. am B. is C. are D. be

2. The rich ____ not always happy.

A. are B. is C. has D. have

3. Neither Tom nor Jack and I ____ his students.

A. are B. am C. is D. was

4. Mary as well as her sisters ____ Chinese in China.

A. are studying B. have studied C. studies D. study

5. Neither my father nor I ____ at home.

A. am B. is C. are D. be

6. Not only my brother but also I ____ good at painting. Both of us ____ good painters.,

　A. are; are B. am; am C. am; are D. is; is

7. Every' boy and every girl ____ to attend the evening party.

　A. wish B. wishes C. is like D. like

8. Over 80 percent of the population of China ____ peasants.

A. was B. is C. would be D. are