B baby [?be?b?] n. 婴儿back [bæk] n. 后面,背部,足球等的后卫 adv. 向后地;以前 v. 后退,支持at/on the back of 在......后面background[?bækɡra?nd]n. 背景He’s always going on about his working class background.他老是谈论自己出身于工薪阶层家庭。Without knowing the background of the case, I couldn’t possibly comment. 因为不了解案件的背景情况,我不能加以评论。bad[bæd]a. 坏的;有害的;不利的;严重的be bad for 对......有害/不利bag[bæg]n. 书包;提包;袋子ball [b??l] n. 球balloon[b??lu?n] n. 气球bamboo [bæm?bu?]n. 竹banana [b??nɑ?n?; (US) b??næn?] n. 香蕉bank [bæ?k]n. (河、海、湖的)岸,堤;银行baseball[?be?sb??l] n. 棒球play baseball 打棒球basic[?be?s?k] a. 基本的basket [?bɑ?sk?t; (US) ?bæsk?t]n. 篮子basketball[?bɑ?sk?tb??l] n. 篮球play basketball 打篮球bathroom[?bɑ?θru?m] n. 浴室be [bi?](am,is,are,was,were)v. 是(原形),成为beach [bi?t?] n. 海滨,海滩bean n. 豆,毫无价值的东西bear [be?(r)](bore,born) n. 熊;粗鲁的人 v.忍受,具有,结果实beat(beat, beaten) [bi?t] v.n. 敲打;跳动;打赢;(音乐)节拍He beat his son for telling lies. 他因他儿子说谎而打了他。beautiful [?bju?t?f(?)l] a. 美丽的,美观的because [b??k?z; (US) b??k??z] conj. 因为because of (接名词或者名词词组) 因为......He begs because of poverty, not hunger. 他不是因为饿了,而是因为贫穷才要饭的。because后接句子。become(became, became) [b??k?m] v. 变得;成为The custom has now become a rule. (那个习俗现已变为成规。)bed [bed] n. 床bedroom[?bedru?m] n. 寝室,卧室beef[bi?f] n. 牛肉before[b??f??(r)] prep.ad.conj. 在……以前;在……前面;以前 在…..之前before long 不久以后Before long ,news came that China lost the game. 不久以后传来消息说中国队比赛输了。the day before yesterday 前天He went to see his grandmother the day before yesterday. 他前天去看望他奶奶了。long before 很久以前She said she had seen the film long before. 她说很久以前就看过这部电影。begin(began,begun) [b??ɡ?n] v. 开始,着手 近义词辨析:begin/start二者都表示“开始”后面可以接不定式或动名词,一般可以互换使用。区别是:begin 侧重于时间上一个过程的开始;start 侧重于形态上的开始,通常指由到静到动的过程。The meeting will begin at seven o’clock. (会议将在七点开始。) beginning n.开端;起点;起源 at the beginning of 在......的开始begin with 以......开始behind [b??ha?nd] prep.ad. (表示位置)在……后面 在后面;向后believe [b??li?v] v. 相信;认为I believe what you say. (我相信你说的话。)bell [bel] n. 钟,铃;钟(铃)声;钟形物below[b??l??] prep. 在……下面beside [b??sa?d] prep. 在…..旁边;靠近besides prep.&adv.除……之外;此外近义词辨析:except/besidesexcept 除……之外;侧重整体除去一部分We all knew about the news except Jim. 除了Jim以外,我们都知道这个消息。(不包括Jim)besides 除……之外(还有)We all knew about the news besides Jim. (包括jim)best n.a. 最好的人,最好的事物;最好的better n./a 较好者。较好的between [b??twi?n] prep. 在(两者)之间,在……中间big[b?ɡ] a. 大的bike=bicycle[ba?k] n. 自行车bill[b?l] n. 帐单;法案,议案;(美)钞票,纸币bird[b??d] n. 鸟birth [b??θ] n. 出生;诞生birthday [?b??θde?] n. 生日biscuit[?b?sk?t] n. 饼干bit [b?t] n. 一点,一些,少量a bit 一点儿black [blæk] n.a. 黑色;黑色的blackboard [?blækb??d] n. 黑板blind [bla?nd] n. 瞎的block n. 街区blood n. 血,血液blouse n. (女士)短上衣,衬衫blow(blew, blown) [bl??] v. 吹;刮风;吹气It was blowing hard. 天刮着大风。blue [blu?] a. 蓝色board [b??d] n. 木板;布告牌;委员会;(政府的)部boat [b??t] n. 小船,小舟body[b??di] n. 身体book [b?k] n.书籍 ;著作;本;册bored a. 无聊的,无趣的boring[`b?r??] a. 乏味的;无聊的born[b??n] a. 出生be born 出生于borrow [?b?r??] v. (向别人)借用;借borrow …from… 向......借入......lend…to 把......借给......Tom always borrows money from others .(汤姆总是跟别人借钱。)boss [b?s] n. 领班;老板both [b??θ] a.pron. 两;双;两者;双方both…and… ......和......都both of… ......两者都bottle [?b?t(?)l] n. 瓶子a bottle of 一瓶......bottom [?b?t?m] n. 底部;底at the bottom of 在......的底部bowl [b??l] n. 碗a bowl of 一碗......box [b?ks] n. 盒子,箱子a box ofboy [b??] n. 男孩brain [bre?n] n. 脑子brave[bre?v] a. 勇敢的bread [bred] n. 面包;食物,粮食;生计a piece of bread 一片面包break(broke, broken) [bre?k] v 打破(断、碎);损坏,撕开He fell and broke his leg.(他跌倒了,腿跌断了。)breakfast [?brekf?st] n. 早餐have breakfast 吃早餐have…for breakfast 早餐吃......breathe v.呼吸;低声说breathe in/out 吸入/呼出bridge [br?d?] n.桥bright [bra?t] a. 明亮的;聪明的bring(brought, brought) [br??] vt. 拿来,带来,取来bring sth to one's attention 使某人注意......bring sb. with 某人随身携带某物bring sth. for sb. 给某人带来某物She brought her friends to the party.(他带着朋友来参加聚会。)Britain n. 大不列颠British a. 英国(人)的brother [?br?ð?(r)] n. 兄;弟brown [bra?n] n.a. 褐色,棕色;褐色的,棕色的brush [br??] v.n. 刷;擦;刷子We should brush our teeth twice a day.我们应该每天刷牙两次。build(built, built) [b?ld] v. 建筑;造Rome was not built in a day.伟业非一日之功。building [?b?ld??] n. 建筑物;房屋;大楼burn(-ed,ed/burnt,burnt) [b??n] v. 燃,烧;着火;使烧焦;使晒黑All his belongings were burnt in the fire.他所有的财物都已付之一炬。bus [b?s] n. 公共汽车by bus 乘公共汽车on a bus 在公共汽车上at the bus stop 在公共汽车站business [?b?zn?s] n. (本分)工作;职业;生意;交易;事业on business 出差busy [?b?z?] a. 忙(碌)的be busy (in) doing something.忙着做……be busy with 忙于……She is busy doing her homework.她正忙着做作业。but [b?t, b?t] conj.Prep. 但是;可是;除了;除…之外buy (bought, bought) [ba?]vt.买buy sb. sth./ buy sth. for sb. 给某人买某物by [ba?] prep. 靠近;在…旁边;在…时间;不迟于;被;用;由;乘(车)