1.quail n.鵪鶉
例：Europeans have long known that eating quail sometimes makes the eater ill．

2.qualify v.（使）合格(to meet the required standard)；（使）具有資格（to certify）
詞根記憶：qual（性質，特征）+ify（使…）——使具有某種性質——具有資格
例：Farmers wished to qualify for support payments.
派生詞：qualified(a．有資格的；有限的)；disqualify(v.喪失資格)

3.qualitative a．（性）質的，質量的；定性的(of, relating to, or involving quality or kind)
詞根記憶：qual(性質，特征)+it+ative——性質的
例：qualitative change質變//qualitative analysis定性分析

4.quantitative a.（數）量的，（定）量的(of, relating to, or involving the measurement of quantity or amount)
詞根記憶：quant(量，數量)+it+ative——量的
例：quantitative analyses定量分析

5.quantum n.[pl. quanta]量（amount, quantity）；量子(any of the very small increments or parcels into which many forms of energy are subdivided)
詞根記憶：quant(量，數量)+um——量
例：quantum chemistry量子化學
同根詞：quantity(n．數量，總量)；quantitative(a．數量的)

6.quarantine n．隔離檢疫期（a restraint upon the activities or communication of persons or the transport of goods designed to prevent the spread of disease or pests)
例：It will be necessary to keep the dogs in quarantine for 30 days after importing them.

7.quarry n.獵物(prey);v.挖掘(to dig)
例：Snow geese are a popular quarry for hunters in the Arctic.
8.quasar n.【天】類星體(any of a class of celestial objects that resemble stars)
例：Quasars are so distant that their lights have taken billions of years to reach the Earth.