8. there be 句型中be的单复数一般由靠近的名词决定。如：There is a table and four chairs in the room.

　　9.用bothand连接两个事物做主语时,谓语一般用复数。如：Both you and I are required to be here tomorrow.

　　10.主语中含有with的短语时,谓语单复数由with之前的人物决定。如：A woman with a 7-year-old child was standing at the side of the road. 就站在路边)

　　11.eitheror或者 neithernor连接两个人物做句子主语时,谓语采用就近原则。如：Either you or he is right. / Neither you nor I am going there.

　　12.表示一段时间或长度概念的复数名词做主语时,谓语一般用单数。如：Two months is not a short time.Two thousand kilometers is quite a long distance.

　　13.主语中含有half of / of / all the .等词语时,谓语的单复数由名词确定,如：Over three quarters of the information on the Internet is in English. / A third of the students were playing near the lake.正在湖边玩耍) / All of the water in these rivers has been polluted.

　　但是,population一词又有特殊情况： Whats the population of China? / Three quarters of the population in this city are Arabs.

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