主谓一致在英语中,要特别注意句子中的谓语动词在人称和数上要和主语保持一致。
我们称之为“主谓一致”。
例如:I am a student and my mother is a teacher.我是个学生,我妈妈是名教师。
I go to school and my mother goes to work every day.每天,我去上学,我妈妈去工作。
Ⅰ、并列结构作主语时与谓语的一致关系一、由and连接主语时可分为下列四种情况:1) 主语A,B表示不同的人、物或概念时谓语动词用复数形式。
例如:Li Ming and Zhang Hua are good students.李明和张华是好学生。
Both the parents and the children are here.父母和孩子们都在这里Listening, speaking, reading and writing are all important.听、说、读、写都很重要。
注意:both A and B作主语。
谓语动词用复数。
2)主语A.B表示同一个人、物或概念时谓语动词用单数形式。
例如:Ajournalist and author lives in the sixth flat.一个新闻记者兼作家的人住在第六层。
注意:同一个人只能用一个冠词,如果是不同的两个人就要用两个冠词。
例如:A boy and a girl are playing tennis.一个男孩和一个女孩正在打网球。
3)主语A,B之前有each .every,many a,no等修饰语时谓语动词用单数。
Each boy and each girl is invited.每一个男孩和每一个女孩都受到了邀请。
Every boy and girl is invited.所有的男孩和女孩都被邀请。
No boy and no girl is there now.现在那儿没有任何男孩和女孩。
Many a boy and many a girl has been invited.许多男孩和女孩都被邀请了。
4)主语A, B为两个不可分的东西时,谓语动词用单数A law and rule about protecting environment has been drawn up.(视为一件事)一项关于环保的法规已制定出来。
Bread and butter is nutritious.(视为一种食物)奶油面包有营养。
注意:a great/good many+复数名词时,谓语动词用复数。
A great/good many people were killed in this traffic accident.在这次交通事故中许多人死了。
all+不可数名词→谓语动词用单数all十可数名词复数→谓语动词用复数All whiskey is expensive for me.所有的威士忌对我来说都很贵。
All birds have wings, but not all birds can fly.所有的鸟都有翅膀,但并不是所有的鸟都会飞。
重要:表示一个整体的“A and B'law and rule 法规fish and chips 炸鱼加炸薯条knife and fork 刀叉a horse and carriage 马车二、由or; not only ...but(also)...;either ... or; neither ... nor连接主语时谓语的人称和数与靠近谓语的主语以一致(即:就近原则)Either you or I am mad. 不是你疯了,就是我疯了。
Neither you nor he is naughty. 你和他都不调皮。
Not only the old farmer but also his family were friendly to me.不仅是这位老农夫,连他的家人都待我很好。
三、主语A,B由with,along with,together with,besides,except,as well as连接时。
谓语动词仅和第一个主语(A)保持一致。
A library with five thousand books is offered to the nation as a gift.一个有5000册书的图书馆被作为礼物送给了这个国家。
She as well as the other girls is going to another supermarket.她和其他女孩打算去另一个超市。
A peasant, together with some soldiers is about to help us.一个农民和一些士兵即将来帮助我们。
Ⅱ、成双成套的事物名称作主语时谓语用复数。
如:glasses眼镜;jeans牛仔裤;scissors剪子;shoes 鞋;trousers/pants裤子;clothes衣服;goods货物等。
例如:My trousers are white and his clothes are black. 我的裤子是白色的,他的衣服是黑色的。
All the goods are very expensive. 所有的货物都很贵。
Ⅲ、动名词、不定式、从句作主语时,谓语动词一般要用单数To see is to believe. 百闻不如一见。
Swimming is a good way to keep health. 游泳是个健身的好方法。
Who is her father is not known. 谁是她父亲尚不得知。
Ⅳ、几种特殊情况1)主语为表示距离、时间、长度、价值、金额、重量等复数名词时,谓语动词用单数形式。
例如:Two kilometers is not very far. 两公里不算远。
Two hours is enough. 两个小时足够了。
2)数词作主语时,谓语动词通常用单数。
例如:Three times three makes nine. 三乘三等于九。
3)one/ every one/ each one/ each/ anyone十of+复数名词短语作主语谓语动词用单数。
例如:Each of them/Each boy has a slide. 他们每个人/每一个男孩有一副滑板。
4)neither/either/ none of+不可数名词作主语谓语动词用单数。
例如:None of that money in the desk is his. 书桌里的那笔钱不是他的。
5)none/ neither/either/ none+of +可数名词复数作主语可用单复数两种形式。
例如:None of his classmates knows the truth.=None of his classmates know the truth.他的同学们都不知道真相。
Neither of them is/are right.=Neither is right.他们两个中没有一个是对的。
Either of them is right.=Either is right.他们两个之中有一个是对的。
None of the boys here like dancing.这儿的男孩都不喜欢跳舞。
6)“分数/百分数+of+词组”作主语时,谓语动词的数取决于of后的名词或代词的数而定。
例如:Three-fourths of the surface of the earth is sea. 地球表面四分之三是海洋。
Two-thirds of the youth support the plan. 年轻人中的三分之二支持这项计划。
注意:分数词由基数词和序数词构成,基数词代表分子,序数词代表分母,除了分子是“1”外,序数词都用复数。
7) a (great) number of+复数名词作主语→谓语动词用复数the number of +复数名词作主语→谓语动词用单数例如:A great number of tourists have been to the Great Wall. 许多游客都去过长城。
A number of trees are .green in April. 四月里许多树都绿了。
The number of students in the computer class is limited to ten.上计算机课的学生数目被限定为十人。
8)the+形容词,表示一类人→谓语动词用复数the+形容词,表示一类物→谓语动词用单数例如:The rich are for the decision but the poor are against it.富人们支持这项决议,而穷人们反对它。
The beauty is hers. 这些漂亮的东西是她的。
The young are always full of vitality. 年轻人总是充满了活力。
注意:“年轻人”还可以表示为the youth.9) 不定代词someone,somebody, something,no one,nobody,nothing等作主语谓语动词用单数。
例如:Everyone in the class was surprised at the news. 班上每一个人都因这则消息而震惊。
Listen, someone is knocking at the door. 听,有人在敲门。
10)由there和here引起的句子,主语是两个以上时,谓语动词依“就近原则”。
例如:There is a book and two pens here. 有一本书,两支钢笔。
Here are some books and a pen for you. 这儿有你的几本书和一只钢笔。