1.booth n.(隔开的)房间（a small enclosure that isolates its Occupant）
词根记忆：和tooth(n.牙齿)一起记
例:voting booth投票站
2.boreal a．北方的(of, relating to, or located in northern regions)
例:Boreal owls range over larger areas in regions where food of the sort eaten by small animals is sparse than in regions where such food is abundant.
3.bounce v.（使）弹起，（使）反弹(to rebound)；n.（球）弹起(a sudden leap or bound)
联想记忆：又跳(bound)又弹(bounce)
例:The basketball bounced off the backboard and missed the basket.// After the third bounce the ball was caught.
4.bound v.包围，限制(to constitute the boundary or limit of)；a.( to)必定的(sure, certain)；(up with)密切关联的(closely connected)
例:The triangular flower bed is bounded by three driveways.//Retail sales in Aroca City are bound to increase substantially.//My fate was bound up with hers.
派生词：boundary(n.边界)
5.bounty n.奖金，赏金(reward)
词根记忆：bount( =bon好)+y--表现好一奖金，赏金
例:By the 1930s, bounty hunters had exterminated most of the gray wolves in the United States.
派生词：bountiful(a．丰裕的，充足的)
6.bourgeois n.资本家(burgher)；中产阶级的人(a middle-class person)
例:BoLugeois feminism, so called by its more radical opponents, emphasized individualist feminist goals such as access to education, career opportunities, and legal equality.
派生词：bourgeoisify(v.使中产阶级化：使资产阶级化)
7.bower n.凉亭；树荫(a shady, leafy shelter in a garden or wood)
例:Young male bowerbirds are inept at bowerbuilding and apparently spend years watching their elders before becoming accomplished in the local bower style.
派生词：bowery(a．有亭子的：有树荫的)
8.boycott v./n.联合抵制(usu. of a group of people, refuse to deal or trade with a person or a country)
联想记忆：boy+cott(音似：cut剃)--男孩子们剃头以示抗议一抵制
例:The union leaders are considering as their principal new tactic a consumer boycott against Gasco gas stations.
9.brace n.支柱，支撑(something that connects or fastens)；v.准备(to prepare)
例:In spring St. Johns residents are less likely to be sitting at outdoor cafes than to be bracing themselves against arctic chills.
10.brass n.黄铜(bright yellow metal made by mixing copper and zinc)
例:Many clothes incorporate thick metal parts such as decorative brass studs(纽扣)or buttons.
派生词：brazen(a．厚颜无耻的)