1.newlywed n．新婚的人(a person recently married)

分拆记忆：newly(新近地)+wed(结婚)--新婚的人

例：The newlywed couple from Louisiana planned to begin their family in Hawaii.

2.nexus n.关系，连结(connection, link)

词根记忆：nex(=nect联系)+us--关系

cash nexus金钱关系

3.niche n．壁龛(a recess in a wall, as for holding a statue or an urn)；【生】生态龛(a habitat supplying the factors necessary for the existence of an organism or species)；特定市场(a specialized market)

发音记忆：“你吃”--这块市场等你来吃--特定市场

例：ecological niche坐态龛//market niche市场利基（经济学名词，指具有特定顾客且不受重视的小市场领域）

4.nihilism n．虚无主义(a viewpoint that traditional values and beliefs are unfounded and that existence is senseless and useless)

词根记忆：nihil(虚无)+ism--虚无主义

例：The pessimistic idea "everything has been tried and nothing works" sometimes borders on nihilism.

5.nitrogen n.氮(a colorless tasteless odorless element that as a diatomic gas is relatively inert)

词根记忆：nitro(含氮的)+gen(产生)--氮

例：The release of the iron compounds did not increase the supply of nitrogen compounds in the area.

派生词：nitrogenous(a.氮的；含氮的)

6.nocturnal a．夜晚的，夜间活动的(active at night)

词根记忆：noct(夜)+urnal--夜晚的

例：Bats are the chief consumers of nocturnal insects.

7.nomad n.流浪者(wanderer);游牧部落的人(a member of a group of people who have no fixed home and move according to the seasons from place to place in search of food water, and grazing land)

例：The nomads viewed themselves as victims of a natural disaster.

派生词：nomadic(a．游牧的)

8.nomadic a．游牧的(of nomad)

词根记忆：来自nomad(n．游牧民，流浪者)

Until recently, the Inuit people led a nomadic existence, sheltering in igloos, the ice-block domes that are peculiar to north-central Canada ,and in structures made of stones, bones, driftwood, and skins.

9.nominate v.提名( to designate, name)

词根记忆：nomin(名称)+ate--提名

例：The board nominated Mary for the sales award for the third year in a row.

派生词：nomination(n．提名，任命)；nominee(n.被提名的候选人)