今天整理的名词都是比较重要的名词，分为可数名词、不可数名词、名词单复数三个方面来为大家整理的。目的就让更好的让大家来备考托福口语词汇。
一、重要的名词
(A)重要的可数名词
discovery, cloud, mineral, metal, material, substance,
population, effort, effect, animal, plant, mammal,
insect, tree, herb, shrub, element, function, feature,
picture, result, clue, star, reason, audience, device,
structure, human , human being, system, fashion, kind,
resource, source, origin, pioneer, automobile, purpose,
style, response, number, amount, variety, quantity, type
(B)常见的不可数名词
furniture, luggage, clothing, equiment, poetry, jewelry,
machinery, weaponry, scenery, information, knowledge,
homework, evidence, folige, advertising, health
1. 液体不可数
2. 自然现象不可数：rain, sunlight,
but a heavy rain 可以用
3. 颗粒状不可数
4. 看不见摸不着的不可数
证据不可数，intelligence 不可数， advice 建议皆不可数
5. 学科不可数
mathematics, economics, statistics, physics, politics,
mechanics, genetics, geology, geography, chemistry,
philosophy, biology, histroy
6. 疾病不可数: meales, munps(腮腺炎) , diabetes(糖尿病)
7. 总称不可数
(C)常见的不规则名词
*tooth, foot 一定错
man-men, woman-women, tooth-teeth, foot-feet, goose-geese,
basis-bases, analysis-analyses, crisis-crises, axis-axes,
hypothesis-hypotheses, alga-algae, lava-lavar,
fungus-fungi, stimulus-stimuli, datum-data, medium-media,
bacterium-bacteria, spectrum-spectra, mouse-mice,
child-children, phonemenon-phenomena
(D)常见的单复数同形的名词
aircraft, spcecraft 等 craft结尾的词
species, series, means(mean不加s不是名词)
sheep, deer, trout, carp, salmon, fish->fishes,fish
鱼类一般单复同形
(E)单一复数意义有差异的名词
sky-skies(气候) water-waters(水系，永远不错)
good-goods(货物) part-parts(才能)
custom=customs(风俗) spectacle(风景)-spectacles(眼睛)
letter-letters(文字) arm-arms(武器)
force-forces (武装力量)
这些词加s后是另一个名词单数还是作为复数
(F)即可数又不可数的名词
不可数 可数
paper 纸 文件
rock 碎岩 块岩
collection 各种收藏品 同一种收藏品
sugar 砂糖 方糖
area 面积 地区
land 面积 区域
work 作品;工作 著作;工厂，工程，工事
room 空间 房间
time 时间 倍数，时代
* art, newspaper, food, beverage
art 泛指艺术 不可数
一种艺术 an art
各种各样的艺术 arts
eighteen pieces of newspapers 十八张报纸
eighteen newspapers 十八种报纸
此类：强调种类就属于可数
二、名词作定语的单复数问题
(A)名词作主语，即noun.修饰noun.,前面的名词必须是单数
color effects, employment agenenices, sentence form, tree trunks
例外：a sales girl, a sales tax
a greetings card, a sports car
a savings bank, a communications satellite
a systems engineering
(B)man或woman修饰noun.时，其单复数应该同时变
a woman boxer->women boxers
(C)表示某一学科的教授、学生、教科书、实验室...时，只能用
学科名本身修饰
a mathematical professor 错
a biological textbook 错
the chemical lab 错
the highest scientific award 错
a mathematical model 对
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