1.barrel n.桶(cask)；v.把…裝桶(to put or pack sth. in a barrel)

聯(lián)想記憶：bar(柵欄，障礙)+rel--橫木圍住的桶

例:World consumption of oil is currently 26 billion barrels a year.

2.barren a．貧瘠的(not productive)；(of)沒有的，缺乏的(devoid, lacking)

詞根記憶：bar(柵欄，障礙)+ren--阻礙發(fā)展--沒有的，缺乏的

例:No doubt castle and cathedral building was not totally barren of profit.

3.barrier n.柵欄(fence)：障礙，壁壘(obstacle)

詞根記憶：bar(柵欄，障礙)+rier--柵欄，障礙

例:trade bamers貿(mào)易壁壘

4.batch n.—批(a quantity( as of persons or things) considered as a group);v.分批處理(to bring together or process as a batch)

聯(lián)想記憶：bat(蝙蝠)+ch一蝙蝠都是成群生活--一批

例:Some batches of polio vaccine used around 1960 were contaminated with SV40,a virus that in monkeys causes various cancers.

派生詞：batcher(n.混凝土材料計量器)

5.battalion n.軍營，軍隊(army)

詞根記憶：bat(戰(zhàn)斗)+talion --用于戰(zhàn)斗的--軍隊

例:The army policies kept most Black units working in labor battalions.

同根詞：battle(n.戰(zhàn)爭)

6.bead n.小珠子(a small piece of material pierced for threading on a string or wire)；(水、血、汗酌)小滴(drop of liquid)

例:The beads are DNA segments wrapped around the histones.

7.beam v.堆滿笑容(to smile with joy)；n.（光線等的）束，柱(ray or stream of light or other radiation)

聯(lián)想記憶：be+am--做我自己，成為國家的棟梁一柱

例:In each 30-second period, the beam sweeps through 3.690度.

8.bearer n.搬運工( porter)；生育者(one who breeds)

來自bear(v.負(fù)荷：運載)

例:child bearer孕婦

9.beckon v.召喚 (to summon)吸引,引誘 (to attract)

例:Employers showed surprisingly little interest in changing that perception, even when higher profits beckoned.

10.beehive n.蜂窩：蜂箱(a hive for bees)

分拆記憶：bee(蜜蜂)+hive(蜂房，蜂箱)--蜂窩,蜂箱

例:A beehive's honeycomb cannot have some sections that contain toxic honey and other sections that contain nontoxic honey.