Subject & Verb Agreement
主謂一致

集體名詞做主語
集體名詞做主語時，謂語動詞情況有三種
①有些集體名詞如cattle、folk 、people 、youth 、clergy（教士）、police等常做復數看。
The police have caught the murderer.

集體名詞做主語
②有些集體名詞（表示總稱）如machinery、stationery, merchandise （商品） 、foliage（樹和植物葉子的總稱）等看作單數。
New machinery is being installed in the factory.

集體名詞做主語
③有些集體名詞如army, audience、class、club, committee、company, crowd, family、group, government, jury, party, staff, team, union, public 、poultry等根據意思決定，有時做單數看待，有時做復數看待。
The committee meet every Monday. He is on the committee that controls public spending.

單復數同形的名詞作主語
單復數同形的名詞作主語，要根據意義決定謂語的形式。
This means of transportation is the most convenient one.
There are various means of transportation being developed.

成雙成對的東西的名詞
表示成雙成對的東西的名詞，若被a pair of修飾，要求單數謂語；否則，用復數謂語形式。
A pair of gloves is a nice present.
My shoes need repairing.
My trousers want mending.

表示時間、重量 、長度、距離、價值等單位的名詞做主語
表示時間、重量 、長度、距離、價值等單位的名詞以及概念上屬于整體的一個單元的名詞雖然形式上是復數，但謂語動詞仍用單數形式。
Ten years is only a moment in history.
Two copies is enough.
Three hours is not a long time to wait.

表數量名詞做主語
number、variety、proportion、majority、population、percent 、 total等詞有時做單數，有時作復數看待，從意思上決定。（分數、百分數、部分）
20 percentage of the polluted water goes into the sea.
20 percentage of the families say that they enjoy watching this TV program.

不可數名詞
不可數名詞前加表示數量的復數名詞，后面跟復數謂語。
There are two cups of coffee.
Here are several pieces of valuable information for you to refer to / make reference to.

書名、電影名或格言等專有名詞做主語
如果主語是一本書的名字、電影的名字或一個格言等專有名詞，謂語動詞用單數。
"Gone with the Wind" is an interesting novel.
"The Scent of a Woman" is an awarded film.
No Pains, No Gains is a widely quoted proverb.

學科名詞做主語
表示學科名稱的名詞如physics, mathematics, economics, politics, electronics, 做主語，雖然形式上以 結尾，但應為單數，謂語動詞多用單數。
In my opinion, physics is a difficult subject.
Politics is an interesting topic for many men.

表示疾病的名詞做主語
表疾病名稱的名詞如diabetes, tuberculosis, measles等做主語，雖然形式上以 結尾，但應為單數，謂語動詞多用單數。
Diabetes is considered a disease that belongs to the wealthy/the rich. （富貴病）
Tuberculosis is no longer threatening people's life.

就近/毗鄰一致原則
There 或here引起的句子中主語不止一個時，謂語就近一致。
由or、either…or 或neither…nor、not only、…but also、not,…but…等連接的兩個主語謂語就近一致。

謂語動詞多用單數的情況（1）
Many a /More than one所修飾的名詞作主語時謂語動詞多用單數。
Many a brave soldier has died in that battle.
More than one question has been raised in the lecture.

謂語動詞多用單數的情況（2）
Either/neither做主語通常作單數看待，謂語動詞多用單數。
Either of the methods is effective.
Neither of the roads leads to the town.

謂語動詞多用單數的情況（3）
each、some、any、no、every等構成的復合代詞，都作單數看待，謂語動詞多用單數。
There is somebody on the phone for you.
Nobody was working when I came in.
Everything is all right.
Each is given a copy of the book.

謂語動詞多用單數的情況（4）
主語中包括“and”時，若表示一個單一概念，謂語動詞應做單數。加：(and 連接兩個單數名詞前面如有each、every， many a， no等)
The poet and writer has come.
All work and no play makes Jack a dull boy.
Every man and woman is eager to find a life-long companion.

謂語動詞多用單數的情況（5）
主語是單數，后面盡管有with、together、with 、along with 、besides 、as well as 等引導的短語，謂語動詞仍用單數。
The teacher, together with some of her students , was cleaning the classroom.
We as well as he agree with you.

one of+名詞/代詞做主語
"one of+賓語"后的定語從句中謂語動詞的形式有兩種情況：
⑴ (only) one of +賓語 that…+復數
⑵ the(only)one of +賓語 that…+單數
He is only one of the students in our class who have passed the CET-4.
He is the one of the students in our class who has passed the CET-6.

謂語動詞多用單數的情況（6）
None在代表不可數名詞時總是單數.
I am afraid that we can't have coffee; there is none left.
None of +名詞短語做主語謂語動詞總是用單數。
None of us is interested in the suggestion.
None of the students has passed the exam.

謂語動詞多用復數的情況（1）
由both…and連接的兩個部分總是作復數看待。
Both my mother and father are satisfied with my job.
Both John and Jack have ever got a summer job.

謂語動詞多用復數的情況（2）
the +adj（或過去分詞）表一類人需作復數看待。
The old need our care.
The wounded are being taken good care of.
The young are our country's hope.
The injured were sent to the hospital immediately.

謂語動詞多用復數的情況（3）
ch、sh、-ese等結尾的表示國籍的詞，也作復數看待。
The British are very fond of their sense of humor.
The French are well-known for their romance.
The Chinese are famous for their hospitality.

The rest of +名詞/代詞做主語
The rest of +名詞/代詞做主語時， 謂語動詞有三種情況：
1）The rest of +可數名詞復數做主語，謂語動詞用復數。
2）The rest of +可數名詞單數做主語，謂語動詞用單數。
3）The rest of +不可數名詞做主語，謂語動詞用單數。

what引導的主語從句
由what引導的主語從句，一般用單數謂語。若從句謂語或從句后表語為復數，則用復數謂語形式。
What he has told me is not true.
What ideas he has are his wife's.

動名詞短語，不定式短語& 名詞從句作主語
動名詞短語，不定式短語和名詞從句作主語時，謂語動詞常用單數。
Collecting foreign coins is my favorite hobby.
To die for the people is a glorious death.
When they will come hasn't been made public.