四、名词或代词作主语时和谓语之间的单复数的一致问题:
1.谓语和谓语基本保持单复数的一致,即:主语是可数名词单数或不可数名词时,谓语动词用单数形式:如:The computer was a great invention.The water in the glass is very cold.
2.集体名词做句子主语时,
① 如果表示整体概念,则谓语用单数形式,如:Class Three is a very good class.
② 如果表示其中的所有成员时,则谓语用复数形式,如:Class Three have a map of China.
3.Chinese, Japanese, fish, sheep, people等表示单个时谓语用单数,表示许多时,谓语用复数。如:There is a sheep in the yard. / There are some sheep in the yard.
4.maths, news等虽然有s结尾,但不是复数,因此谓语仍用单数:The news is very exciting.
5.glasses, shoes, socks, trousers, gloves等名词往往用复数形式,故谓语用复数。如:
The trousers are very cheap and I want to take them.
6.a lot of 后跟名词复数时谓语用复数形式,跟不可数名词时谓语用单数形式。如:A lot of students are playing baseball now. A lot of time was wasted on that work.
7.and 连接两个名词做主语时,谓语原则上用复数,但是两个名词若构成一个整体事物时,谓语则用单数。如:The teacher and his son are picking apples now. / Fish and chips is very famous food.
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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