1.paleolithic a．旧石器时代的(of or relating to the earliest period of the Stone Age)

联想记忆：paleo(古)+lith(石头)+ic--生产石制工具的时代--旧石器时代的

例：upper Paleolithic旧石器时代晚期

2.paleontologistn．古生物学家(a specialist in paleontology)

词根记忆：来自paleontology(n．古生物学)

例：The first introduces the hypothesis proposed by the paleontologist.

3.paleozoologist n．古动物学家(people who are specialized in paleozoology)

词根记忆：paleo(古)+zoo（动物）+ logist(学家)--古动物学家

例：By analyzing the advanced olfactory apparatus of Pleistocene chordates, paleozoologists have discovered a link between the brain's regions of scent discrimination and its regions of long-term memory storage ,a link that could prove invaluable in the treatment of amnesia victims.

4.pan n．幕，遮盖物(covering)

例：a pan of dust尘雾

5.pallid a．苍白的，没血色的(pale)；无生气的(lacking liveliness)

词根记忆：pall(=pale苍白)+id--苍白的，没血色的

例：a pallid countenance脸色苍白

6.palm n.棕榈（树／叶）；手掌

例：In Asia, where palm trees are non-native, the trees' flowers have traditionally been pollinated by hand.

7.pltry a．无价值的，微不足道的（insignificant, trifling）

联想记忆：pal(看作pale苍白的)+try(努力)--白努力--无价值的

例：Only paltry sums are available for excavating in archaeology.

8.pamphlet n．小册子(brochure)

词根记忆：来自拉丁文pamphilus，是一首爱情名诗；pam(=pan全部)+phil（爱）+ us--表达爱情（的小册子）--小册子

例：A town's public health officials sent a pamphlet about mouth cancer to all town residents.

9.panacea n.灵丹妙药（cure-all）

词根记忆：pan(全部)+acea(治疗)--全都能治疗的--灵丹妙药

例:In recent years proposed panaceas and new programs have proliferated at a feverish pace.