1. 不可数名词:

Furniture luggage clothing equipment poetry jewelry

machinery weaponry scenery information knowledge evidence

foliage health advertising托福

2.学科名词(不可数，不加冠词):

mathematics economics statistics physics politics mechanics

genetics geology geography chemistry philosophy biology

history astronomy

3. 单复数特殊名词:

man/men woman/women tooth/teeth foot/feet goose/geese

basis/bases analysis/analyses crisis/crises hypothesis/hypotheses

axis/axes alga/algae larva/larvae fungus/fungi stimulus/stimuli

datum/data bacterium/bacteria medium/media spectrum/spectra

mouse/mice child/children phenomenon/phenomena

4.单复数同行 :

aircraft spacecraft series species means sheep deer fish

salmon trout carp starfish jellyfish shellfish walrus

5. 可跟that同位从句:

observation， fact， belief， discovery， doubt， statement， conclusion，decision idea，

evidence， hope， news， opinion， thought， rumor， explanation， truth