第一节,词法
(一),名词
(一)可数与不可数名词可分为专有名词和普通名词。专有名词是国名,地名,人名,团体,机构名称;普通名词是一类人或东西或是一个抽象概念的名词。
普通名词又分为以下四类:
1-个体名词(Individual Nouns):表示某类人或东西中的个体,如:pen ,student ,desk,book,bike.
2-集体名词(Collective Nouns):表示若干个个体组成的集合体:如:family,class,people,school.
3-物质名词(Material Nouns):表示无法分为个体的实物:
如air,water,paper.
4-抽象名词(Abstract Nouns):表动作,状态,品质,感情等抽象概念,如:work,time,news.
个体和集体名词可以用数目来计算,称为可数名词(Countable Nouns),物质名词和抽象名词一般无法用数目计算,称为不可数名词(Uncountable Nouns)。
(二)修饰名词的限定词
1-只能修饰可数名词单数的限定词,谓语常用单数。(many a,more than one,each,every)
2-只能修饰可数名词复数的限定词,谓语常用复数。(a good many,a great many,a number of,a few)
3-只能修饰不可数名词的限定词,谓语动词用单数。(a great deal of,a large sum of+钱,little)
4-既能修饰可数又能修饰不可数名词的限定词,谓语根据具体名词的单复数而定。(plenty of)
(三)单复数
(1)-名词复数形式变化规则:
1-规则名词的复数形式
①一般情况加s (maps,books,girls,days) ②以f,fe结尾的词,变f,fe为v再加es.(leaf-leaves,thief-thieves,knife-knives,loaf-loaves, wife-wives)口诀:树叶半数自己黄,妻子拿刀去杀狼,架后窜出一匹狼,就像小偷逃命忙 直接加 s(belief-beliefs,chief-chiefs,proof-proofs,roof-roofs)
③以辅音字母加y结尾,变y为i再加es(party-parties,family-families,story-stories,city-cities)
④以元音字母加y结尾,或专有名词以y结尾,加s(toy-toys,boy-boys,day-days,ray-rays,Henry-Henrys)
⑤以辅音字母加o结尾, 一般加es,(Negro-Negroes,hero-heroes,tomato-tomatoes, potato-potatoes,黑人英雄爱吃西红柿和马铃薯) 不少外来词加s (piano-pianos,photo-photos,auto-autos,kilo-kilos) 两者皆可 (zero-zeros,zeroes,volcano-volcanos,volcanoes)
⑥以元音字母加o结尾, 加s(radio-radios,bamboo-bamboos,zoo-zoos)
⑦以th结尾, 加s(truth-truths,mouth-mouths,month-months, path-paths)
⑧以s,x,ch,sh,结尾的名词, 加es(class-classes,box-boxes,watch-watches, dish-dishes)
2.不规则名词的复数形式
①改变名词中的元音字母或其他形式
(man-men,woman-women,foot-feet,goose-geese,mouse-mice)
②单复同形
(羊鹿鱼sheep,deer,fish,
series系列,means,works,species种类)
③只有复数形式
(ashes,trousers,clothes,thanks,goods,glasses,
campasses圆规,scissors剪刀)
④集体名词用作复数
(people,police,cattle牛群,staff职员)
⑤部分集体名词既可做单数(整体,表示数目的看做整体),也可以做复数(成员,强调动作)
( audience,class,family,crowd,couple,group,committee,government,population,crew,team,public,enemy,party)
⑥复数形式表示特别含义
(customs海关,forces军队,times时代,spirits情绪,drinks饮料,sands沙滩,papers文件报纸,manners礼貌,looks外表,brains头脑智力,greens青菜,ruins废墟)
⑦表示某国人
(中日瑞葡不变Chinese,Japanese,Swiss,Portuguese
英法变English man-English men,
French man-French men
其余s添(Americans,Australians,Germans,
Greeks,Swedes,Europeans)
⑧合成名词
将主体(有生命的)名词变为复数,在主体名词后面加s
(sons-in-law,lookers-on,passers-by,story-tallers,boyfriends)
无主体名词时,将最后一部分变成复数
(grown-ups,good-for-nothings饭桶,go-betweens)
将两部分变为复数,遇到男人女人前后变
(women singers,menservants,)
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