1.and的用法
and连接并列主语时,谓语动词用复数。例如:
Both he and I are right.
Mr. Black and Mrs. Black have a son called Tom.
但并列主语如果指的是同一人,同一事物或同一概念,谓语动词用单数,例如:
His teacher and friend is a beautiful girl.
The poet and writer has come.
当连接的是两个不可分的东西时,谓语动词用单数,例如:
Whisky and soda is my favorite drink.
Bread and butter is my favorite snack.
由and连接的并列主语中如果有each, every, no修饰时,其谓语动词要用单数形式。例如:
Every boy and every girl has a dictionary at hand.
Each man and each woman has a dancing partner at the party.
In our country every boy and every girl has the right to receive education.
2.就近原则:
not…but…,not only … but also…,either……or,…,neither……nor…,there be…,here…
以上词语连接两个主语时,以离动词最近的主语形式为准,如:
Either Mr. Smith or his wife and sons have to face the difficulties.
There are fourteen chairs and a whiteboard in the meeting room.
经典试题:
One or more pages are missing.
The headmaster or I am going to hand out the papers.
3.就远原则:
with, along with, together with, including, except, but, besides, rather than, instead of
以上词语连接两个主语时,以离动词远的主语形式为准,如:
The library including 5,000 books was burnt down last night.
The teacher rather than the students was wrong.
4.集合名词:
Family, class, group, team, crew, committee,等
如以上名词作主语时,如果指一个整体,谓语动词就是单数;如果指成员时,谓语动词用复数,如:
The class is made up of 40 students.
5.单独的动名词,不定式,从句,时间,金钱,距离,学科,疾病,组织(专有名词)做主语时,谓语动词用单数,如;
Swimming is good for you.
Fifty dollars is too much for me.
Father gave me a dictionary as a birthday gift, which makes me excited.
Physics is really difficult for me to learn.
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