1.potential n．潜能：可能性（existing in possibility）；a．潜在的，有可能性的(capable of development into actuality)

词根记忆：potent(潜力的)+ial--潜能

例：However, habitat loss has the potential to reduce genetic diversity.

派生词：potentially( ad.可能地，潜在地)

2.potter n.陶工(one that makes pottery)

例：The potter placed the wet clay in the oven.

派生词：pottery(n.陶器;制陶术)

3.poultry n．家禽(domesticated birds kept for eggs or meat)

例：In 1989 Juranians consumed twice as much poultry as fish.

同根词：poulterer(n．鸟贩；家禽贩)

4.practical a．实际的(of, relating to, or manifested in practice or action)；实用性的(useful)

词根记忆：来自practice(v．实践：练习)

例：They served a ceremonial as well as a practical function.

派生词：practically( ad.实际地：事实上)

同根词：practicably( ad.突用地；能用地)

5.practitioner n.开业者（医生、律师等）(person who practices a profession, esp. medicine)

例：The document indicated that women activists were early practitioners of nonpartisan, issue-oriented politics.

6.pragmatic a．实际的，注重实效的(practical)：实用主义的(relating to or being in accordance with philosophical pragmatism)

词根记忆：pragm(实际)+atic--实际的，注重实效的

例：This pragmatic approach is buttressed by the government.

派生词：pragmatically( ad.实际地，实用主义地)

同根词：pragmatism(n．实用主义)：pragmatist(n.实用主义者)

7.prairie n.大草原(a tract of grassland)

联想记忆：pr+air(空气)+ie--大草原上空气好

例：prairie dog草原土拨鼠

8.prank n．恶作剧，玩笑(a trick)

记：不要和plank(n．厚木板)相混

例：Removing the boxes will reduce the number of prank calls without hampering people's ability to report a fire.

9.precaution n．预防，警惕( care taken in advance)

词根记忆：pre(预先)+caution(小心)--事先小心--预防，警惕

例：Because sloth bears are smaller than brown and polar bears and are under greater threat from dangerous animals, they may have adopted the extra precaution of carrying their cubs.