一、可数名词与不可数名词
名词分可数与不可数两种。
可数名词表示某类人或东西中的个体。如table, country.
或表示若干个体组成的集合体。如 family, people, committee, police.
不可数名词表示无法分为个体的实物。如air, tea, furniture, water.
或表示动作、状态、品质、感情等抽象概念。如work, information, advice, happiness.
有些名词在一种场合下是可数名词,在另一种场合下是不可数名词。
如room 房间(可数),空间(不可数)
time 时间(不可数),次数(可数)
fish 鱼(不可数),各种各样的鱼(可数)
比较下列例句:
There are nine rooms in the house. (房间,可数名词)
There isn't enough room for us three in the car . (空间,不可数名词)
不可数名词的数量可以通过在其前面加单位词来表示。
如: 一块肉 a piece of meat
两条长面包 two loaves of bread
三件家具 three articles of furniture
一大笔钱 a large sum of money
二、可数名词的复数形式
可数名词有单数和复数两种形式。名词复数的构成如下:
1.一般情况下在名词后加-s.如:girls, books.
★浊辅音、元音结尾,s发[z]
2.以s, x , ch, sh结尾的词在名词后加-es.如:glasses, boxes, matches, bushes.
★以s, x , ch, sh结尾,es发[iz]
3.“辅音字母+y”结尾的词,变y为i再加-es.如:city-cities, country-countries.
4.以o结尾的词多数加-es.如:heroes, tomatoes, potatoes.
radios, zoos, photos, pianos, kilos 例外。
5.f, fe 结尾的词,多数变f,fe为v再加-es.如:thief-thieves, leaf-leaves, half-halves, life-lives, wife-wives, knife-knives.
少数名词有不规则的复数形式。如:man-men, woman-women, foot-feet, tooth-teeth, child-children, mouse-mice.
★可数名词复数一般情况下考不规则复数形式。
个别名词的单数和复数的形式是一样的。如Chineses, Japanese, sheep, deer.
名词的所有格
名词的所有格表示所属关系, 起形容词的作用。
当名词表示有生命的东西时,所有格一般是在词尾加 's .
如:Jean's room, my daughter-in-law's friends, my daughters-in-law's friends, children's books.
如果名词已经有了复数词尾s, 则只需加'.如:the teachers' books, my parents' car.
时间名词的所有格在后面加's ,复数加' .如:today's newspaper, five minutes' walk.
当名词表示无生命的东西时,所有格常由“of”短语构成。
如:the top of the world, the cover of the book, China's capital.
加 's 或 ' 的名词所有格可以表示店铺或某人的家。
如:the grocer's, the tailor's, the Smith's .
★名词所有格考试常见部分是
名词表示没有生命的东西时,不能直接在其后加's.
时间名词所有格在其后加's,或复数名词后直接加'.
三、名词在句子中的作用
1.主语是可数名词单数时,谓语动词用单数形式;主语是复数时,谓语动词用复数形式。
All roads lead to Rome.(条条大路通罗马。)
His brother is an industrial engineer.
The number of the students attending the party is increasing.
★the number of 表示数量,无论后面名词是复数还是单数,谓语动词是单数形式。
Two-thirds of the shop belongs to me.
★two-thirds 三分之二
几分之几作主语,谓语是单数形式。
Both of us are studying English.
★总结:在名词作主语时,the number of 谓语动词单数形式;
几分之几,谓语单数形式;
both 谓语使用复数形式。
2、主语是不可数名词、不定式或动名词词组、从句时,谓语动词用单数形式。
All the money he received was given to his mother.
Forgetting the past means betrayal.
What we are talking now is useless.
3.主语部分若有as well as, with, together with, like, but, except等短语,谓语动词的单、复数与短语前面的名词一致。
Mary, as well as her two sisters, is a student of this school.
(as well as her two sisters 作主语Mary的主语补足语,主语 Mary 是单数,所以谓语动词用单数形式)
No one except my friends knows anything about it.
4.表示时间、距离、重量、价值等的复数名词作主语时,如果当作整体看待,谓语动词用单数形式。“…+(×)…=…”算式中的谓语动词也用单数形式。
Three times two is six.
Three kilometers is 3,ooo metres. (three kilometers作为整体来看)
5.Either, neither作主语时,谓语动词用单数形式。
Neither of us has been to Italy.
Has either of them been to Shanghai?
none代表可数的人或东西时,谓语动词可以用单数也可以用复数,代表不可数的东西时,谓语动词用单数形式。
None of the students have/has seen the film.
None of the money belongs to me.
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