众所周知，
吝啬 stingy penurious niggardly miserly parsimonious petty
慷慨 openhanded freehanded generous benevolent bountiful munificent
节俭 economical frugal provident thrifty sparing austere
奢侈 luxurious lavish extravagant improvident spendthrift dissipated profligate prodigal unstinting
富裕 affluent opulent
贫穷 indigent impoverished destitute penniless impecunious poverty
勤奋 assiduous sedulous diligent industrious
谦虚 humble unpretentious unassuming modest
敏锐 acute keen discriminating discerning perceptive insightful
高傲 arrogant haughty supercilious overbearing overweening egotistical smug impudent imperious insolent dismissive contemptuous disdainful hubris
奉承 fawn adulate flatter (Verb) toady sycophant (Noun) servile obsequious subservient (Adj)
沉默寡言 reticent reserved taciturn restrained withdrawn
轻浮 frivolity lightness levity buoyant
即兴创作 improvise extemporize adlib spontaneous impromptu
忧郁 gloomy somber melancholic
不开心 depressed dispirited downcast dejected
各式各样的 various varied variegated diverse miscellaneous heterogeneous multifarious sundry
易怒的 irritable cantankerous surly choleric peevish irascible petulant querulous
好争斗 argumentative disputatious contentious polemical litigious truculent
刺耳难听的 grating strident cacophonous
悦耳的 euphonious harmonious harmonic melodious mellifluous dulcet
仓促 precipitate cursory
限制 restrict circumscribe bound confine contain cheek
易碎 brittle delicate fragile
居民 dweller subject citizen resident denizen
偏爱，倾向 inclination preference proclivity predilection penchant propensity
抚慰 conciliate placate pacify mollify appease console soothe
听话，温顺 tractable docile submissive obedient servile compliant
以上列举的同一意群里的词汇肯定是有细微差别的，但是一般考生不需分析出其中区别，只要对感情色彩把握住就满足考试要求。
譬如，“吝啬”这组意群里：
Stingy是直接表示吝啬小气，但是书面语出现不多，更书面化的是parsimonious;而penurious来自于名词penury，原意指的是贫穷，引申意才是吝啬小气; petty一般指的是过分关注琐碎细节，虽然不直接表示吝啬，但是可以把它归为近义概念; miserly来自于名词miser吝啬鬼，所以miserly指的是吝啬鬼的，小气的; niggardly除了吝啬这个意思以外，还可以指(礼物)无价值。另外，还有一些词汇可以表示吝啬鬼：例如skinflint, scrooge等，它们在考试当中很少出现，所以可以在进一步提高时再掌握。
总而言之，考生不必去区分同一意群内的单词，但是一定要区分不同意群的单词，比如，stingy和frugal, frugal表示节俭的意思，是褒义词，而stingy明显是贬义。