谓语做单数的特殊情况！
1.国家，机构，书名等专有名词的复数形式看作整体，谓语用单数，例：
The United States was founded in 1776.
美国建立于1776年.
"Three Kindoms"is a good story.
三国演义是个好故事.
2.many a...或 more than one+名词做主语，谓语用单数，例：
Many a man is smoking
很多男人在抽烟
More than one man is smoking
不止一个男人在抽烟
3.时间，钱，距离等各种单位可看作整体，谓语用单数，例：
Two dollars is no big deal
两美元没什么大不了
Four miles is not a long way
四英里的路不远
4.加减乘除运算中，谓语用单数，例：
Five times five is twenty-five
5乘5是25
One plus one is two
1加1是2
5.each,one,no one,some(any,no,every)+body(one,thing)作主语或作限定词，谓语用单数，例：
Each student is in the classroom
每个学生都在教室里
Someone student is in the classroom
某个学生在教室里
6.one+of+复数名词结构中，谓语用单数，例：
One of the students in our school is from the United States
我们学校有一名来自美国的学生
7.含有整体概念的名词，根据上下文判断，整体概念谓语用单数，个体概念谓语用复数,例：
The family was in a poor way
这个家庭生活贫困（整体概念，这个家庭）
The family go to the movies together
这家人一起去看电影（个体概念，这个家的人）
8.含有单复数形式一样的名词作主语，根据上下文判断，谓语用单数还是复数,例：
A fish was back in the water
一条鱼回到了水中
Some fish are still alive
有些鱼还活着
9.
a number of+可数名词复数作主语，泛指许多，用复数
the number of+可数名词复数作主语，特指数量多少，谓语用单数
The number of scientists in the lab is five.
实验室里的科学家人数是五人
10.and连接两个单数词，指同一人同一事物或同一概念，两个名词共用一个冠词，谓语动词用单数
The Youtuber and traveler is his friend
这位旅行家兼视频博主是他的朋友
11.and连接两个单数词，主语前有every,each,no,many a修饰时，谓语用单数，例：
Each day and night is busy
每天都从早忙到晚
12.a/an+单数名词+or two作主语，谓语用单数
one or two+复数名词作主语，谓语用复数
An apple or two is not enough
一两个苹果是不够的
One or two apples are not enough
一两个苹果是不够的
13.some of ,plenty of, a lot of , lots of ,most of,the rest of ,all of ,half of,part of,分数/百分百+of+名词短语，作主语，谓语动词与of后的名词，保持单复数，例：
Most of the student was gone
大多数学生都走了
Most of the students were gone
大多数学生都走了
14.就近原则（距离谓语近的名词，决定谓语单复数）or,either...or...(二选一)，neither...nor...（两个都不选，选另外一个），not only...but(also)..(不仅而且，两个都)连接并列作主语，例：
His friends or he was dead
他的朋友们或者他已经死了
He or his friends were dead
他或者他的朋友们已经死了
Either my brothers or mother is going to the garden
我弟弟或者妈妈要去花园
Either mother or my brothers are going to the garden
妈妈或者我弟弟要去花园
Neither two apples nor one banana is vegetable
两个苹果和一个香蕉都不是蔬菜
Neither one apple nor two bananas are vegetables
一个苹果和两个香蕉都不是蔬菜
Not only my friends but also my girlfriend was wrong
不仅是我朋友我女朋友也错了
Not only my girlfriend but also my friends were wrong
不仅是我女朋友我朋友也错了
15.就远原则（距离谓语远的名词，决定谓语单复数）四除（but,except,besides,in addition to）五和（with,along with,together with,combine with,as well as ）包括（including）而不是（rather than,instead of）,例：
Peter, but his roommatesis friendly.
皮特人很好，除了他室友
Peter, except his roommates,is friendly.
皮特人很好，除了他室友
Peter, besides his roommates, is friendly.
皮特人很好，除了他室友
Peter. in addition to his roommatesis friendly.
皮特人很好，除了他室友
Peter, with his roommates,is friendly.
皮特和他室友人都很好
Peter, along with his roommates, is friendly
皮特和他室友人都很好
Peter, together with his roommates, is friendly.
皮特和他室友人都很好
Peter.combined with hisroommates.is friendly.
皮特和他室友人都很好
Peter. as well as his roommates, is friendly
皮特和他室友人都很好
Peter, including his roommates,is friendly.
皮特人很好，包括他室友也很好
Peter, rather than his roommates, is friendly.
皮特人很好而不是他室友
Peter, instead of his roommates, is friendly.
皮特人很好而不是他室友