今天給大家帶來英語語法之名詞的最後一種語法，主謂一致。
什麼是主謂一致？主謂一致常見都有哪些表達？本文將為你一一道來。
主謂一致含義：在一句話中主語和謂語動詞保持一致，即為主謂一致。
1.主語是可數名詞單數，或者不可數名詞，謂語動詞用單數
The mobile phone is on the desk.
手機在桌子上（這裡的手機是可數名詞，並且單數，所以謂語動詞用單數is）
The milk in the glass is warm.
杯子裡的牛奶是溫熱的（牛奶是不可數名詞，謂語動詞用單數is）
2.集體名詞作主語，如family,class,team,group,police,people等
1）當表示一個整體時，謂語動詞用單數
Class three is a good class
三班是好班（這裡指三班這個整體是個好的班級）
2）表示其中的所有成員，謂語動詞用複數
The whole class are listening carefully.
指整個班級（同學）都在認真聽講
3.單復同形的名詞做主語，如Chinese,Japanese,fish,sheep等，需要根據語意來判斷
There is a fish in the lake
There are a school of fish in the lake
這裡的a school of 是一群的意思
4.以複數形式出現的單詞，glasses，shoes，socks，trousers，gloves等，名詞常用複數，謂語動詞用複數
The trouseres are dirty.
這褲子髒了
註：若表示一條褲子，則謂語動詞仍用單數，
This pair of trousers is dirty
這一條褲子髒了
同樣，若表示不止一條褲子，謂語動詞仍用複數
Those pairs of trousers are dirty
這幾條褲子髒了
5.a lot of
1) 跟名詞複數時，謂語動詞用複數
A lot of students are playing football now.
2) 跟不可數名詞時，謂語動詞用單數
A lot of water was wasted.
6. and
1)當連接兩個名詞做主語時，謂語動詞用複數
The book and the pen were very expensive.
2)當and將兩個名詞構成一個整體時，謂語動詞用單數
The singer and songwriter is very famous in the city.
這個歌手兼創作在這個城市很有名氣
7.就近原則，即謂語單複數取決於離謂語動詞近的名詞單複數，如
1)there be句型
2)either...or...或者neither...nor...
3)not only...but also...
4)not...but...
感受下這幾個例句
There is a dog and two cats in the room
There are two cats and a dog in the room
Either you or he is right
Either he or you are right
8.主語中有with的短語，謂語動詞由with之前的名詞單複數決定
A woman with two kids was standing at the side of the road.
類似用法還有as well as, (together/along) with, rather than, except, besides, but, including, in addition to, apart from等，也叫叫遠原則。
All the students, except Lucy, are leaving.
9.表示一段時間或者長度的複數名詞做主語，謂語動詞用單數
Two thousand kilometers is quite a long time.
10.主語中含有half of/quarters of/all of the等詞語時，謂語動詞單複數由其連接名詞決定
A quarter of studens were playing on the playground.