① 英语 主谓一致
主谓一致的基本原则
1) 语法一致原则
The boy has failed his exams and will have to take them again.
2) 意义一致原则
The police are still in search of the murderer.
3) 就近原则
Neither Jane’s mother nor her father is at home.
2. 以-s结尾的名词作主语
大部分以-s结尾的名词是复数含义
The goods are to be delivered soon.
但也有一些以-s结尾的名词是单数含义
The United States is a melting pot
3) 表示山脉、海峡等的复数形式的地理名词,动词为复数形式。
一些以-s结尾的名词单数和复数形式相同。
Every means has been tried out.
3. 集合名词作主语
1) 有些集合名词永远为复数含义,动词为复数形式。
The police have closed the case.
2) 有些集合名词永远为抽象含义,动词为单数形式。
The merchandise is attractively displayed and the assistants are friendly and helpful.
3) 既能作复数,又能作单数的集合名词。
My family are taking separate vacations.
His family is a big one.
4. 一词多义的名词作主语
一些名词同时具有几种含义,单复数意义也不同。
His arm is broken
The nuclear arms have been disposed of.
5.熟记规则,多看原文,对照分析,仔细琢磨。
② 英语语法里主谓一致的问题
【意义一致原则(Notional Concord)】
I. 集合名词做主语时:(参见“名词”部分)
1. 有些通常作复数用(不变词形)。如:“people , police , cattle (牛,牲口),folk , youth , militia (民兵)”,等。e.g.
The police have caught the murderer .警方已捕获凶手。
2. 有些指“整体”时作单数,指其中的“成员”时作复数(不变词形)。如 "army , audience(听众),class ,club (俱乐部) ,company(公司), committee(委员会) ,crew ,crowd ,staff(员工) ,family ,public ,government ,group ,party ,union ,couple ,population ,team ."等。e.g.
①Our family is a happy one . 我们有个幸福的家庭。
②The family are early risers. 这家人都起得早。
③The public are (is) requested not to litter. 请公众不要乱扔废弃物。
但上述集合名词也可有复数形式。如:families , two classes .等。有些变复数形式后意义不同。如:peoples多个民族。 youths男青年。 folks亲友。
II. 代词做主语时:(参见“代词”部分)
1. 不定代词"each ,one , much, (a)little ,either ,neither ,another ,the other(+单名)"等常作单数用。它们所修饰的主语也作单数。e.g.
①Each of the girls (Each girl) has a new hat . 每个女孩都有顶新帽子。
②Neither plan suits me .③Neither of the plans suits / suit me . 两个计划都不适合我。
2. 下列复合不定代词一般作单数用:“someone ,somebody ,something ,anybody ,anyone ,anything ,everybody ,everyone ,everything ,nobody ,no one ,nothing ”等。e.g.
①Is everybody here ? 都到齐了吗?
②There was nothing special then. 那时没什么特别情况。
3. 下列不定代词作复数用:“(a)few ,many ,several, both”等。e.g.
①Few (of the guests ) were familiar to us . 没几个(客人)是我们熟识的。
②Both / Both (of ) these are interesting . 两部影片都有趣。
4下列代词须视其“具体所指”来决定单、复数:
1)“what ,which ,who ,whose ”等。e.g.
①Who is your brother ?你兄弟是谁?
②Who are League Members .哪些是团员?
2)"all , some ,more ,most ,any ,none ,a lot(of ), lots (of ),"等。e.g.
①All (of the students ) are working hard .(所有的学生)都在用功。
②All (of the paint ) is fine .(这些油漆)都很好。
3)"half(of), plenty (of), the rest(of), (a)part(of), the remainder(of )余下的)",等。e.g.
①Half of the apples are bad .苹果中有一半是坏的。
②Half of the apple is bad .这只苹果坏了一半。
Ⅲ.“数词”、“数量、单位”等词语做主语时:(参见“数词”部分。)
1. 表示“运算”的数词通常作单数 。e.g.
Ten times four makes(make) forty .+ 乘以四得四十。
2.表“时间、距离、金额、度量衡”等的词语,作“整体”看时作单数用,侧重指“若干单位”时作复数用。e.g.
①Twenty years is not a long time . 二十年光阴,弹指一挥间。
②Twenty years have passed since he left. 他离开已二十个年头了。
3.“分数、百分数”通常依其“具体所指”来决定单、复数。e.g.
①About 40 percent / two-fifths of the books here are (is) worth reading . 这些书中百分之四十/五分之二值得读。
②Only sixty percent / three-fifths of the work was done yesterday .昨天只干完了百分之六十/五分之三的工作。
4. "a number of (许多)/ a variety of (各式各样) "+复数名词,常作复数用。e.g.
①A number of students in this class are (is) from Sichuan . 这个班有不少同学来自四川。
②There are a variety of toys in this shop.这家商店有各种各样的玩具。
但是,“the number(数目)/ the variety(种类)”+ of + 复数名词,作单数。e.g.
①The number of students in this college has doubled . 这所大学的学生人数翻了一番。
②The variety of goods in this shop is rich . 这家商店货物品种丰富。
Ⅳ.单、复数同形或易混的词做主语时:(参见“名词”部分)
1.以“-ics”结尾的学科名词:指教育、科研的某一学科,作单数。e.g.
Mathematics seems easy to me .我似乎觉得数学不难。
但是,表“具体的学业、活动”等时,多用作复数。e.g.
①Her mathematics are weak . 她数学差。(指“学业成绩、能力”)
②What are your politics? 你的政治观点如何?
2. “works工厂,means方法,series系列,species物种,aircraft飞机”等名词单、复数同形,要从上下文判断其具体意义来决定单、复数。e.g.
①This works was(These works were)built two years ago . 这(几)家工厂是两年前修建的。
②Every means has (All means have) been tried. 各种办法都试过了。
这类名词通常还有“fish ,deer ,sheep ,headquarters (总部驻地),bellows(风箱), plastics, gallows (绞架), manners(礼貌) ,whereabouts (行踪), ”等。(但news(消息)是不可数名词,通常只作单数用。)
Ⅴ. "the + 形容词/分词"做主语时:
1. 指“一类”人或事物时,常用作复数用。e.g.
①The English speak English. 英国人讲英语。
②The rejected were heaped in the corner. 废品堆在角落里。
2.指“某一个”人,或“抽象的”事物时,作单数用。e.g.
①The deceased was his father . 去世的是他父亲。
②The agreeable is not always the useful. 好看的不一定中用。
③The new and progressive always wins over the old. 新生、进步的事物总是要战胜旧的东西。
Ⅵ.专用名词做主语时:
1.“书名、剧名、报刊名、国家名”等通常作单数用。e.g.
①The United States was founded in 1776. 美国成立于1776年。
②The Arabian Nights is very interesting. 《天方夜谭》很有趣。
2.“书刊名”有时作单数或复数两可,尤其是编成集子的书。e.g.
Dickens' American Notes were (was ) published in 1842 .
狄更斯所著的《美国笔记》出版于1842年。
Ⅶ“what等引导的从句”做主语时:
1. 大多作单数用。e.g.
①What we need is more practice . 我们需要的是更多的实践。
②What he says doesn't agree with what he does. 他言行不一致。
2.若从句是含复数意义的并列结构、或“表语”是复数时,谓语动词用单数或复数两可。e.g.
①What you say and think is /are no business of mine . 你怎么说以及怎么想,不关我的事。
②What he bought was /were some books. 他所买的是几本书。
【语法一致原则】
I .主语的“人称”决定谓语动词的形式。e.g.
①I love / She loves music . 我/ 她爱好音乐。
②Are your mother a worker? (误)你母亲是工人吗?
Is your mother a worker? (正)(主语your mother 是单数第三人称)
II .主语的“数”决定谓语动词的形式。
1.“不可数名词、可数名词单数、单数代词、不定式(短语)、动名词(短语)”或“从句”等做主语,用单数谓语形式。e.g.
①The work is important . 这项工作重要。
②To serve the country is our ty. 为祖国服务是我们的义务。
③How and why he left was a sad story. 他离开的经过和原因是一段伤心的经历。
2. 复数的名词、代词一般接复数谓语形式。e.g.
①The children are taken good care of . 孩子们得到很好的照料。
②They have gone to Cheng . 他们去成都了。
III. 以“and”或“both… and”连接的并列主语:
1.通常作复数用 。e.g.
①Plastics and rubber never rot . 塑料和橡胶从不腐烂。
②What he says and what he does do not agree. 他言行不一致。
③Both Tom and I are fond of medicine. 我和汤姆都喜欢医学。
2. 如果并列主语指的是“同一个”人(事、物、抽象概念),作单数用。e.g.
①The worker and writer has come . 这位工人作家来了。
②A cart and horse was seen in the distance. 远处能看见有一套马车。
③Truth and honesty is the best policy. 真诚是最好的策略。
3. “and”前、后的单数词语都有“each, every ,many ,a ,no”等修饰时,仍作单数用。e.g.
①Every boy and every girl enjoys equal rights here.这里每个男孩和每个女孩都享有平等权益。
②No teacher and no student is excused from taking part in the activity .没有哪个教师或学生可以免于参加这项活动。
Ⅳ. 主语前、后加表“数、量”等的修饰语时:
1. a)“many a + 单名 ”接单数谓语:“a good (great ) many + 复名”接复数谓语。e.g.
①Many a fine man has died for it . 许多优秀战士为此献出了生命。
②A great many parents were present at the meeting. 许多家长出席了会议。
b)"a / an + 单名+ or two " 大多接单数谓语: "one or two + 复名"接复数谓语。e.g.
①Only a word or two is (are )needed. 只需说一两句。
②One or two reasons were suggested. 提出一两条理由。
c)"a / an + 单名+ and a half"常接单数谓语;“one and a half +复名”多接复数谓语。e.g.
①A year and a half has passed . 一年半已过去了。
②One and a half tons of rice are sold. 已卖了一吨半大米。
d) "more than one + 单名"大多接单数谓语。e.g.
①More than one person was (were )absent . 不止一个人缺席。
"more + 复名+ than one "接复数谓语。e.g.
②More students than one have been there . 不止一个学生去过那儿。
"More than two (three…) +复名 " 接复数谓语。e.g.
③More than one hundred students have attended the concert . 不止一百名学生听了这场音乐会。
2 ,主语前加表示“单位、度量”的短语如“a kind (sort / type / form /pair /cup /glass /piece / load / block / box / handful / quantity / ton / metre /… )of”等时,表示“单位、度量”的这个名词的单复数决定谓语形式。e.g.
a)①There is only a small quantity of paper (books ) left . 只剩下少量的纸(书)了。
②Large quantities of water are needed. 需要大量的水。
b)①This kind of apple is sweet . 这种苹果甜。
②This kind of apples is (are) sweet. (大多依 kind ,作单数用 )
③These kind(s) of apple(s) are sweet . (总作复数用)
但:Apples of this kind are sweet. (总作复数用)
3. 主语后接“with…”等构成的短语修饰成分时:谓语仍须与这类短语前的“主语”一致。可构成这类短语的常用“with ,along with ,together with ,as well as , but , besides , except ,added to , including , like ,no less than , rather than , more than ”等。e.g.
①A woman with two children has come . 一位妇女带着两个孩子来了。
②I as well as they am ready to help you. 不仅他们,我也愿帮助你。
4. "one of + 复数名词+ 定语从句":
1)定语从句的先行词通常是这个“复数名词”,因此从句的谓语用复数形式。e.g.
①This is one of the best novels that have appeared this year . 这是今年出版的最佳小说之一。(关系词“that”代“novels”)
②He was one of the boys who were praised . 他是受表扬的男孩之一。
2)若“one”前加“this, the ,the only ”等时,定语从句的关系词指代one,作从句主语时,接单数谓语。e.g.
He was the only one of the boys who was praised .他是男孩中唯一受到表扬的。(关系词who 代 the only one )
③ 求英语主谓一致的讲解资料
1 并列结构作主语时谓语用复数
Reading and writing are very important.
注意: 当主语由and连结时,如果它表示一个单一的概念,即指同一人或同一物时,谓语动词用单数,and 此时连接的两个词前只有一个冠词。
The iron and steel instry is very important to our life.
典型例题
The League secretary and monitor ___ asked to make a speech at the meeting.
A. isB. was C. are D. were
答案B. 注: 先从时态上考虑。这是过去发生的事情应用过去时,先排除A.,C.。本题易误选D,因为The League secretary and monitor 好象是两个人,但仔细辨别, monitor 前没有the,在英语中,当一人兼数职时只在第一个职务前加定冠词。后面的职务用and 相连。这样本题主语为一个人,所以应选B。
2 主谓一致中的靠近原则
1)当there be 句型的主语是一系列事物时,谓语应与最邻近的主语保持一致。
There is a pen, a knife and several books on the desk..
There are twenty boy-students and twenty-three girl-students in the class.
2)当either… or… 与neither… nor,连接两个主语时,谓语动词与最邻近的主语保持一致。 如果句子是由here, there引导,而主语又不止一个时,谓语通常也和最邻近的主语一致。
Either you or she is to go.
Here is a pen, a few envelops and some paper for you.
3 谓语动词与前面的主语一致
当主语后面跟有with, together with, like, except, but, no less than, as well as 等词引起的短语时,谓语动词与前面的主语一致。
The teacher together with some students is visiting the factory.
He as well as I wants to go boating.
4 谓语需用单数
1) 代词each和由every, some, no, any等构成的复合代词作主语,或主语中含有each, every, 谓语需用单数。
Each of us has a tape-recorder.
There is something wrong with my watch.
2) 当主语是一本书或一条格言时,谓语动词常用单数。
The Arabian Night is a book known to lovers of English.
<<天方夜谭>>是英语爱好者熟悉的一本好书。
3) 表示金钱,时间,价格或度量衡的复合名词作主语 时,通常把这些名词看作一个整体,谓语一般用单数。(用复数也可,意思不变。)
Three weeks was allowed for making the necessary preparations.
Ten yuan is enough.
5 指代意义决定谓语的单复数
1) 在代词what, which, who, none, some, any, more, most, all等词的单复数由其指代的词的单复数决定。
All is right. (一切顺利。)
All are present.(所有人都到齐了。)
2) 集体名词作主语时,谓语的数要根据主语的意思来决定。如family, audience, crew, crowd, class, company, committee等词后用复数形式时,意为这个集体中的各个成员,用单数时表示该个集体。
His family isn't very large.他家不是一个大家庭。
His family are music lovers.他的家人都是音乐爱好者。
但集合名词people, police, cattle, poultry等在任何情况下都用复数形式。
Are there any police around?
3)有些名词,如variety, number, population, proportion, majority 等有时看作单数,有时看作复数。
A number of +名词复数+复数动词。
The number of +名词复数+单数动词。
A number of books have lent out.
The majority of the students like English.
6 与后接名词或代词保持一致
1) 用half of, part of, most of, a portion of 等词引起主语时,动词通常与of后面的名词,代词保持一致。
Most of his money is spent on books.
Most of the students are taking an active part in sports.
2) 在一些短语,如 many a 或 more than one 所修饰的词作主语时,谓语动词多用单数形式。但由more than… of 作主语时,动词应与其后的名词或代词保持一致。
Many a person has read the novel.许多人都读过这本书。
More than 60 percent of the students are from the city.百分之六十多的学生都来自这个城市。
④ 高一英语主谓一致题---求高手帮忙
1A one and a half 后接名词复数形式,但其短语作主语时,谓语用单数形专式
2A population是集合名词,谓语的单复数形式视具体情况属而定,
例如:The population of China (is) very large,and 85 percent of the population (are) farmers.
⑤ 英语主谓一致
楼主想多了。
只有主语为第三人称单数时,谓语动词才使用(第三人称)版单数形式。
主语为其他情况下,权谓语动词一律用复数形式。
楼主所谓的am/are都不是be动词的单数形式,只有is才是。
而你说的那个主谓一致的定义在表达上不严谨。
如果对你有所帮助,请点击我回答下面的“选为满意回答”按钮,谢谢!
⑥ 英语主谓一致的详细讲解。
主谓一致即谓语动词在人称和数上要和主语保持一致,主谓一致包括语法一致、意义一致和就近一致,语法一致即谓语动词在单复数形式上要和主语保持一致,意义一致就是谓语动词要和主语意义上的单复数保持一致,就近一致就是谓语动词要和靠近它的主语部分保持一致。
主谓一致( Subject-Verb Concord )
就其在现代语法中的基本原则而言,通常有三个不同角度的着眼点:1,语法一致 2,意义一致 3,就近原则。
(1)语法一致
主谓一致的原则是指,主语和谓语从语法形式上取得一致:
主语是单数形式,谓语也采取单数形式;主语是复数形式,谓语必须采取复数形式。
例如:
A grammar book helps you learn something about the rules of a language.语法书帮助你学习语言的某些规则。(主语是单数形式,谓语也采取单数形式)
(2)不定式,动名词,以及从句作主语时应看作单数,谓语动词用单数。
例如:
Reading often means learning .读书常意味是学习。
(3)不定代词及each作主语或是修饰主语时应看作单数,谓语动词用单数。
例如:
Neither of my sisters likes sports .我的妹妹中没人喜欢运动。
(4)表示国家,机构,事件,作品等名称的专有名词作主语时应看作单数,谓语动词用单数。
例如:
One Thousand And One Nights tells people lots of mysterious bits of folklore .《一千零一夜》给人们讲了许多神秘的民间传说。
(5)a series of,a kind of,the number of等与名词构成名词短语作主语时看作单数,谓语动词用单数。
例如:
A series of high technology procts has been laid out in the exhibition. 一系列高科技产品已在展览上展出。
(6)由some,several,both,few,many,a number of 等词修饰主语,或是由它们自身作主语时应看作复数,谓语动词用复数。
例如:
Both of us are fond of watching football games .我们俩都喜欢看足球赛.
(7)由and连接两个主语时,如指同一人或物,谓语用单数;指不同的人或物,谓语用复数.
On the seashore,some people are playing volleyball and some are lying in the sun. 海边,有些人在打排球,有些人躺着晒太阳.
(8)有些短语,如:a lot of,most of,any of,half of,three fifths of,eighty percent of,some of,none of,the rest of,all of等后接不可数名词,或是单数形式的名词作主语时应看作单数,谓语动词用单数;但如果后接可数名词的复数形式作主语时应看作复数,谓语动词用复数。
例如:
A lot of money in the shop was stolen yesterday when the electricity was suddenly cut off. 昨天突然断电时,那家商店丢失了许多钱.
(9)主语为单数个不定式(短语)、动名词(短语)或从句时,谓语动词一般用单数。
(10)主语为三单,或习惯用作单数名词或不可数名词的词,如:money,information,clothing等,谓语动词用单数。
意义一致(Notional Concord )
这一原则是指,从意义着眼来解决主谓一致问题.有时主语形式上为单数,但意义上却是复数,那么谓语依意义也用复数形式;而有时主语形式上为复数,但意义上却是单数,那么谓语依意义亦用单数形式。
(1)当主语后面接由as well as,as much as,accompanied by,including,in addition to,more than,no less than,rather than,together with等引导的词组时,其谓语动词的形式要依主语的单复数而定。
在这样的句子里,这些词所引导的词组不影响主语自身的单,复数形式,它们在句子里其实是状语.也就是说,我们完全可以将这些词组搬到句首或是放到句末去.从表面上我们也可以看出,它们与主语之间有","隔开。
例如:
Petroleum,along with fuel gas,has recently risen in price.目前石油和燃料煤气的价格上涨了。
(2)表示时间,金钱,距离,体积,重量,面积,数字等词语作主语时,其意义若是指总量应看作单数,谓语动词用单数;但如果其意义是指"有多少数量"则应该看作是复数,那么谓语动词也应该用复数。
例如:
Four weeks are often approximately regarded as one month.人们常大约地将四个星期看成一个月。
(3)形容词前加定冠词即"the + 形容词"作主语时,其意义若是指个人或是抽象概念应看作单数,谓语动词用单数;但如果其意义是指一类人则应该看作是复数,那么谓语动词也应该用复数。
例如:
The young,on the one hand,often think of the old conservative. On the other hand,the old always consider the young inexperience.一方面,青年人常认为老年人保守;另一方面,老年人总是认为青年人没有经验。
(4)当and连接两个并列主语在意义上指同一人,同一物,同一事或者同一概念时,应看作单数,谓语动词用单数.另外,当and 连接两个形容词去修饰一个单数形式的主语时,其实是指两种不同的事物,主语则应该看作是复数,那么谓语动词也应该用复数。
例如:
War and peace is a constant theme in history. 战争与和平是一个历史上的永恒的主题.
(5)集体名词作主语时,谓语动词的数取决于主语的意义:主语表示整体时视为单数,谓语动词用单数;主语表示集体中的个体成员时视为复数,谓语动词用复数.这类集体名词常见的有:
army,audience,cattle,class,club,committee,crowd,family,government,group,majority,minority,part,people,police,public,staff,team等等,其中cattle,people,police一般看成复数形式.
例如:
The family are all fond of football. 那一家人都喜欢足球.
就近原则(Principle of Proximity )
这一原则是指,谓语动词的人称和数常常与最近作主语的词语保持一致.常出现在这类句子中的连词有:or,either… or …,neither… nor …,not only… but also …等.例如:
Either I or they are responsible for the result of the matter.不是我,就是他们要对那件事的结局负责任。
Neither the unkind words nor the unfriendly attitude has caused me any distress.既不是那些不友好的话,也不是那不友好的态度让我沮丧。
1、并列结构作主语时的主谓一致
由and 连接的两个单数名词作主语时,谓语动词一般根据语法一致的原则用复数。
如:
A young man and a girl want to go there.一个青年男子和一个姑娘想去那里。
2、但如果在意义上指同一个人,同一件事或同一个概念时,谓语动词要用单数形式.如:
A needle and thread was found on the floor.在地板上找到了针线(穿了线的针)。
当each ...and each...,every...and every...,no...and no...,many a...and many a...结构作主语时,谓语动词用单数形式.
如:
No man and no animal is to be found on the moon.在月球上没发现人和动物。
3、一个单数名词同时被两个不同的形容词修饰,表示两个不同的概念时,谓语动词一
般用复数.
如:
Ancient and modern history are the subjects we are studying.古代史和现代史是我们目前学习的课程。
但如果表示的是同一概念时应用单数。
如:
The last and most difficult lesson is lesson14.14课是最后一课也是最难的一课。
4、由not only... but also ...,either...or ...,neither... nor...,... or...连接的并列主语,谓语动词通常依就近一致原则决定.
如:
Either the players or the coach is responsible for the defeat.不是运动员就是教练应该对这次比赛的失利负责。
5、当主语由as well as,along with,together with,ratherthan,no less than,but,except,besides,in additionto,like,including等词连接时,其谓语动词的单复数形式通常由前面的词来决定。
如:
An iron and steal works,with some satellite factories. is to be built here.在这里将建立一个钢铁厂和一些卫星厂。
⑦ 高中英语语法大全
1根据您的情况,能在短期内冲高分的只有作文,听力,阅读,完型了,至于考查语法比较多的单项选择,那就容后再说了。你可以多看语法书上的练习题以及解析,培养一种感觉,不懂的多问老师,尽量扫除多一点的盲点,在语法这一块能争多少分就多少分。
2作文就是多背一些模板,高级句型,词组,考试时候把字体写好一点。
3阅读完型跟语法联系不是很大,所以这是提高幅度仅次于作文的两块。既然跟语法没有关系,那么它们就跟你的语感,经验密切相关了,这些只能靠做题,并适时总结,时时回顾来达到了。
4听力,你要好好总结一下,常考题型有哪些,一般某种题型是怎样提问的,是怎样设置陷阱的,还有就是在什么地方暗示答案的。比如数值型的题目,人家问你a book 多少钱,一般听到的都不是答案,数值型需要一定的计算,而计算的最常用方法就是discount,打折等……这些就是听力题中常见的考点。你可以花点时间看看听力原文,看出题人怎样设置答案的,这样提问的……这些都能让你心中有数,而不会在考试的时候蒙掉了,也不会让你在考试的时候不知道听哪里。
其实听力,也是练出来的,为了保证一定的强度,你还可以把听力的mp3放进手机里,不论走路,还是吃饭,或者是逛商场……你都可以随时听,,因为听力很注重语感,所以到了你需要应付考试的时候,你能天天听,时时听,那更是重要!
我能说的只能是这些,至于具体的语法细节就只能靠您自己把握了。祝你好运!!!
⑧ 高中英语之主谓一致(单选题~)
1 B have that在定语从句里来作主语代the best books 先行词是复自数
2 A are has .
-How are the team playing? the team 指队员们
-They're playing well,but one of them has got hurt. one of them+单数谓语
A are has B are have C is have D is has
3 D have The students复数作主语
4 B own ...is the people who+复数谓语 The number +单数谓语
5 B weighs Each作主语+单数谓语
⑨ 英语语法主谓一致
both beijing and tianjin is in the north of China.
这句哪里看来的?这是病句,没这单数的用法