1.biography n.传记(a usually written history of a persons life)
词根记忆：bio(生命)+graph(写)+y--记录生命一传记
例:There was a biography of each musician in the concert program.
派生词：autobiography(n.自传)
2.biomedical a.生物医学的(of, relating to, or involving biological, medical, and physical science)
词根记忆：bio(生物)+medical(医学的)--生物医学的
例:Junior biomedical researchers have long assumed that their hirings and promotions depend significantly on the amount of their published work.
3.biophysicist n.生物物理学家(a person who is specialized in biophysics)
词根记忆：bio（生物）+physicist(物理学家)--生物物理学家
例:There is a striking similarity that biophysicv:sts have discovered between algae and cows.
4.biosphere n.生物圈(the part of the world in which life can exist)
词根记忆：bio(生物)+sphere(球，圈)--生物圈
例:This ecosystem is one of the fascinating paradoxes of the biosphere.
同根词：atmosphere(n.大气层)：hemisphere(n.半球)
5.bisect v.平分(to divida into two equal parts)
词根记忆：bi(两)+sect(切，割)--分成两份--平分
例:The partition bisected the room into two smaller rooms.
派生词：bisector(n．平分线)
6.bizarre a．奇异的，芒i怪的(very strange, eccentric)
联想记忆：集市上(bazaar)有各种古怪的(bizarre)东西
例:A bizarre series of events preceded the murder.
7. blackout n.无线电通讯中断，信号消失(a usually temporary loss of a radio signal)
词根记忆：来自词组black out(熄灯；停电)
例:Electric currents can cause blackouts in some areas.
8.bland a.（指人）温和的(characterized by a moderate quality)；乏味的(dull)
注意：blend(n.混合物)
例:Michael was listening to abland doctor.
9.blast n.爆炸(an explosion)
词根记忆：和gust(n.阵风，一阵狂风)一起记
例:nuclear blast核爆炸
10.bloc n.集团，组织(a temporary combination of parties)
例:trading blocs贸易组织