1.particulate n．微粒，粒子(particle)；a．微粒的(atomic)

例：particulate matter颗粒物

2.partisan a．有（政治）偏见的（devoted to or biased in support of a party, group, or cause）

词根记忆：parti(=分开党)+san--有分歧的--有(政治)偏见的

例：Her partisan speech angered the opposing party.

派生词：nonpartisan(a．无党派的)

3.partridge n.鹧鸪：松鸡

例：The elimination of certain weeds from cereal crop fields has reduced the population of the small insects that live on those weeds and that form a major part of partridge chicks' diet.

4.passbookn．存折(bankbook)

例：They are abandoning traditional low-interest investment havens such-as passbook accounts and life insurance policies.

5.passive a．被动的，消极的(not active)

例：passive defence消极防御

派生词：passivity(n．被动性)

6.pastoral a．乡村的，农村的(of or relating to the countryside);n．牧歌：田园诗(a literary work( as a poem or play) dealing with shepherds or rural life)

词根记忆：来自pastor(n．牧人)

例：pastoral community乡村社区

派生词：pastoralist(n．放牧者)

7.pasture n．牧场，牧草(meadow, grassland)

联想记忆：pas(看作pass通过)+ture--牛羊通过的地方--牧场

例：The farmer's pasture was enclosed by a wooden fence.

8.patch v.缝补；修补(to repair, to mend)；n.斑点(spot)

联想记忆：及时发觉(catch)漏洞，及时补上(patch)

例：The tailor patched my shirt with a matching piece of cloth.

派生词：patchy(a.有斑或块的;不均匀的)

9.patent n．专利权（证书）(capital asserts);v.取得…的专利(to obtain a patent on or for)

例：The new life-sustaining drug has not been patented yet.