243、detect v. 觉察, 发觉; 侦察, 探测
The dentist could detect no sign of decay in her teeth. 牙医在她的牙齿上找不到蛀蚀的迹象。
244、determine v. 决心, 决定; 确定, 限定 I am determined to do better than Mike. 我下决心要做得比麦克还好。
245、development n. 发展; 扩张; 进展; 发生; 进展程度 The development of this industry will take several years. 这项工业的发展要经过几年的时间。
246、dial n. 钟(表)面, 刻度盘, 拨号盘v. 拨号, 打电话 The dial records showed a very slight variation in pressure. 刻度盘显示出压力有极微小的变化。
247、differ v. (from)与?不同; (with)与?意见不同
They differ with each other as to the precise meaning of this article in the contract. 对于合同中这一条款的确切释义他们的看法不一致。 248、difficult a. 困难的, 艰难的
Even though a government realizes the importance of a plentiful supply of trees, it is difficult for it to persuade the villagers to see this.
虽然政府意识到种植大量树木的重要性, 但是说服村民领会这一点是困难的。 249、difficulty n. 困难, 困境, 难题
At first, the government had great difficulty in persuading people to leave Rio and to settle in Brasilia. 起初, 政府很难说服人们离开里约热内卢去巴西利亚落户。 250、direction n. 方向, 方位; 指令, 说明 What direction does this exhibition hall face? 展览馆朝什么方向?
251、directly ad. 直接地, 径直地; 马上, 立即
Westerners do not usually ask people directly how old they are. 西方人通常不直接问别人的年龄。
252、director n. 指导者; 主任; 导演; 董事
The board of the directors decided to carry on the discussion next day. 董事会决定第二天继续讨论。 253、disadvantage n. 不利条件
Obviously, television has both advantages and disadvantages. 很明显电视有利有弊.
254、discover v. 发现; 显示
Did you ever discover who had been sending you the flowers these days? 你有没有弄清楚这些日子是谁在给你送花? 255、discovery n. 发现; 被发现的事物
The discovery of oil on their land made the people rapidly rich. 他们土地上发现了石油使这里的人们家很快致富了。 256、disease n. 疾病
The rapid spread of the disease is alarming the medical authorities. 这种疾病的迅速蔓延使医疗当局感到忧虑不安。 257、distance n. 距离, 间隔, 远方, 路程
In England distance is measured in miles, not in kilometers. 在英国, 测量距离用英里而不是公里。 258、distant a. 远的, 久远的
The foreign visitors came from a distant country. 外国游客来自一个遥远的国度。
259、disturb v. 扰乱, 妨碍, 使不安 Please don’t disturb me while I’m working.
当我工作时, 请不要打扰我。
260、divide v. 分, 划分, 分开; 分配; (by)除
The work of making pins is divided into about eighteen different operations. 制作别针的工作被分成18个不同的操作步骤。 261、division n. 分, 分割, 除去
The river forms the division between the heavy industrial and light industrial areas of the city. 这条河成了这座城市重工业区和轻工业区的分界线。 262、double a. 双的, 两倍的v. 使加倍, 翻一番 Many things now cost double what they did a few years ago. 许多东西比数年前贵了一倍。 263、doubt n. /v. 怀疑, 疑惑
I have doubts about whether he is the best man for the job. 我怀疑他是否是这项工作的最佳人选。
264、draw v. 拉; 画; 汲取; 引出; (to, towards)挨近 The Olympic Committee has drawn up strict rules for the sportsmen. 奥组委给运动员制定出严格的条例。 264、dream n. /v. 梦; 梦想, 幻想 To spend holidays by the sea was his dream. 到海滨度假是他十分向往的事。
265、drop n. 滴; 落下; 微量v. 落下; 下降; 失落 The plate dropped from her hands. 盘子从她手中掉了下来。
266、dry a. 干的, 干旱的; 枯燥的v. 使干燥, 晒干 This coat will keep you dry in the rain. 这件外套使你避免被雨淋。 267、due a. (to)应支付的;(车、 船等)预定应到达的 Water reserves are at their lowest level in years due to drought. 由于干旱, 水库已经好几年处于最低水位。 268、during prep. 在?期间
They swim every day during the holidays. 假期, 他们天天去游泳。
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269、each a. /pron. 各, 各自的, 每 They could communicate with each other. 他们相互交流。
270、earn v. 赚得, 挣得, 获得
271、earth n. 地球; 土, 泥; 陆地; 地上
No fo rce on earth can hold back the progress of the society. 没有任何力量能够阻止社会的进步。 272、easily adv. 容易地, 不费力地
Those young men are too easily disheartened by difficulties. 那些年轻人遇到困难时太容易泄气了。
273、easy a. 容易的, 不费力的; 安逸的
The job of teaching is so easy that everybody can do it. 教学工作如此简单以至于任何人都可以做。
274、economical a. 节约的, 经济的
For most working people in the city, it is more economical to go to work by subway. 对大多数城市里的上班族来说, 坐地铁上班倒省钱些。 275、economy n. 节约; 经济
His views on knowledge economy have been accepted with unanimity. 他关于知识经济的观点得到一致公认。 276、educate v. 教育; 培养; 训练
The writer was educated at a very good school. 这位作家在一所很好的学校里受过教育。 277、education n. 教育, 培养, 训练
Education is given to children by the government. 政府为儿童提供教育。
278、effect n. 作用, 影响; 效果
A youngster’s social development has a profound effect on his academic progress. 青少年的社会发展对他的学术进步有深远的影响。 279、effective a. 有效的, 生效的
The medicine is an effective cure for a headache. 这种药治头痛有很好的疗效。 280、efficiency n. 效率, 功效
In his speech he kept pounding away at his opponent’s in efficiency. 他在演说中不断攻击对手不称职。
281、efficiently ad. 有效率地, 有效地 Gestures are more efficiently used than words. 手势要比语言有效得多。
282、effort n. 努力, 艰难的尝试
All sides concerned would make more efforts. 相关各方将进一步加大努力。
283、elect v. 选举, 推选; 选择, 作出选择
The government is made up of men and women elected by the people of the country. 政府是由这个国家的人民选出的人员组成的。 284、election n. 选举, 当选, 选择权 The government elections will be next month. 政府选举将在下个月举行。
285、electric a. 电的, 导电的, 电动的
This heavy freighter is driven by two electric motors. 这辆重型运输汽车是由两台电动机驱动的。 286、electricity n. 电, 电流; 电学
In Britain, water will soon be metered, like gas and electricity. 在英国, 水很快就像煤气和电一样用表计费。 287、electronic a. 电子的
The firm is Britain’s main producer of electronic equipment. 该公司是英国主要的电子设备制造商。 288、element n. 元素; 组成部分
In learning a foreign language, the best beginning would be starting with the nonlanguage elements of the language 在学习外语的过程中, 最好从这门语言的非语言部分开始学起。 289、emotion n. 情绪, 情感
Fear is another emotion that is shown in much the same way all over the world. 恐惧是全世界另一种通用的情绪。 290、emotional a. 感情的
She was very emotional; she cried even when her husband left for another city on business. 她很易动感情, 她丈夫到另一个城市出差时她竟然放声大哭。
291、employ n. /v. 雇用; 用, 使用
Too often young people get themselves employed quite by accident. 年轻人经常在偶然的情况下被雇用。 292、employee n. 雇工, 雇员 There are 30 employees in his firm. 他的公司有30名雇员。
293、employment n. 雇用; 使用; 职业 He left his home to look for employment. 他离家去找工作。
294、empty a. 空的; 空洞的v. 倒空, 使成为空的
For a long time, people buried garbage or dumped it on empty land. 长久以来人们在空地上掩埋或者倾倒垃圾。 295、enable v. 使能够, 使成为可能
But division of labor adds nothing new; it only enables people to produce more of what they already have. 但是劳动力的分工不会增加任何新东西, 只会使人民生产更多已存在的东西。 296、end up 竖着; 结束; 死
You could end up running this company if you play your cards right. 你要是处理得当, 到头来这个公司能归你掌管。 297、endless a. 无止境的, 无穷的 Human needs seem endless. 人类的需求是无穷尽的。
298、energy n. 活力, 精力; 能, 能量
Do we have enough energy sources to meet our future energy needs? 我们有足够的能源来满足将来的能量需求吗? 299、engineering n. 工程学
Genetic engineering will have revolutionary consequences for mankind. 遗传工程将对人类产生深远的影响。
300、enjoy v. 欣赏, 喜爱; 享受?乐趣 People enjoy seeing the movies. 人们喜欢看电影。 ~ oneself 过得快活
Villagers in the past found it difficult to enjoy themselves. 在过去, 村民过得很艰难。 301、ensure v. 确保, 保证
If you want to ensure that you get the diploma, you have to work harder and take all these curricula and pass them. 如果你想确保获得文凭, 就得努力些, 选修所有这些课程并通过考试。 302、entertain v. 招待, 款待; 使娱乐; 使欢乐 A teacher should entertain as well as teach. 教师应寓教于乐。
303、entire a. 完全的, 全部的, 完整的 Due to bad cold she spent the entire day in bed. 她得了重感冒, 在床上躺了一整天。 304、environment n. 环境, 外界
The children have a happy environment at school. 孩子们在学校有一个快乐的环境。 305、equally a. (to)相等的v. 等于 People are not equally intelligent. 人的智商是不一样的。
307、equipment n. 设备, 器材, 装置 They use special equipment. 他们用专门设备。
308、error n. 错误, 过失
The accident was caused by human error. 这次事故是由人为过错造成的。
309、escape n. 逃跑, 逃脱v. 逃跑; 避开, 避免
The hotel guests tried their best to escape from the burning building. 旅客们尽力从着火的大楼中逃出来。 310、especially ad. 特别, 尤其
For those who work with their brains most of the day, the practice of such skills is especially useful. 对那些成天使用脑力劳动的人来说, 这种机能训练特别有用。 311、event n. 事件, 事情
Today we can read in our newspapers of important events that occur in faraway countries. 现在我们可以在报纸上读到发生在遥远国度的事情。 312、eventually ad. 终于, 最后
As time goes on, however, we shall have to use our brains more and more, and eventually we shall need larger ones. 随着时间的推移, 我们将会更多地使用我们的大脑, 最后我们会需要更大的大脑。 313、ever ad. 在任何时候
Man has got stronger eyes than he ever had. 现在人们的眼睛比以前任何时候都敏锐。 314、exactly ad. 正确地, 严密地
It is difficult to measure exactly the influence of advertisement on sales. 要准确地估计广告对销售的影响很困难。
315、exam (=examination) n. 考试, 测验 Have you passed the examination you took last month? 你上个月参加的考试通过了吗?
316、examine v. 检查, 细查; 对?进行考试
Microscopes make tiny things larger so that we can examine them. 显微镜可以使小的东西变大, 因此我们可以细查这些小东西了。 317、excellent a. 卓越的, 极好的
The college has excellent sporting facilities. 这所学院有极好的体育设备。
318、exchange v. /n. (for)交换, 调换; 兑换; 交流 May I exchange seats with you? 我可以和你换一下座位吗?
319、excite v. 刺激, 使激动; 激发, 鼓励 The news excited everybody. 这个消息鼓舞了每个人。
320、exciting a. 令人兴奋的, 使人激动的 It was an exciting hunt, but the fox escaped.
这真是一场扣人心弦的追猎, 可惜狐狸还是跑了。 321、exclude v. 拒绝, 把?排除在外, 排斥
We can’t exclude the possibility that some warmongers will run the risk of starting a new world war. 我们不能排除有些战争贩子会冒险发动一场新世界大战的可能性。 322、exhibition n. 展览会; 陈列, 展览 They are coming to the exhibition as my guests. 他们作为我邀请的客人来参观展览会。 323、exist v. 存在; 生活
The Roman Empire existed for several centuries. 罗马帝国存在了好几个世纪。
324、existence n. 存在, 实在; 生存, 生活(方式) The elephant is the largest land animal in existence. 大象是现有最大的陆上动物。