461. phenomenon [fin?min?n] n. 现象
the employment problem tends to be a city phenomenon. 就业问题常常是一个城市现象。
462. reluctant [ril?kt?nt] a. 不情愿的,勉强的
she was reluctant to give her money away. 她不愿意把钱送给别人。
463. rely [rilai] vi. (on ,upon)依赖,指望
the villagers here rely on wells for their water. 这儿的村民用水全靠井。
464. relevant [reliv?nt] a. 有关的,切题的
his nationality isnt relevant to whether he is a good lawyer. 他的国籍跟他是不是一个好律师不相关。
465. reliable [ri确实的
i found this to be a reliable brand of washing machines. 我觉得这是一种牌子可靠的洗衣机。
466. relief [rili:f] n. 轻松,宽慰；减轻??the pills gave her some relief. 药片减轻她一些痛苦。
467. reputation [,repjutei??n] n. 名气,声誉
the store has an excellent reputation for fair dealing. 该店买卖公平,声誉极佳。
468. rescue [reskju:] vt./n. 营救??he rescued three children from the burning building.
469. triangle [trai??gl] n. 三角（形）??he drew a right triangle. 他画了一个直角三角形。
470. sequence [si:kw?ns] n. 连续；顺序
he described the events of that day in sequence. 他按先后次序描述了那一天发生的种种事件。
471. shallow [??l?u] a. 浅的；浅薄的,肤浅的??the lake is quite shallow. 这个湖泊很浅。
472. shiver [?iv?] vi/n. 发抖
as the temperature dropped abruptly, the campers were shivering all over with cold.
由于气温骤降,野营者冷得浑身发抖。
473. shrug [?r?g] v./n. 耸肩?dont just shrug your shoulders. say something. 不要光耸肩。你讲讲话呀。
474. signature [signit??] n. 签名
petitions bearing nearly a half-million signatures were sent to the white house.
有将近五十万人签名的请愿书被送到白宫。
475. sincere [sinsi?] a. 诚挚的,真诚的
henry was sincere about reconciling （和解；和好）with his brother.
亨利真心愿意与兄弟言归于好。
476. utility [ju:tiliti] n. 功用,效用 the store deals in objects of domestic utility. 那家商店出售家庭用品。
477. utilize [ju:tilaiz] vt. 利用
scientists are trying to find more efficient ways of utilizing solar energy.
科学家正在寻找能更有效地利用太阳能的方法。
478. utter [?t?] vt. 说出 a. 完全的,彻底的
we didnt utter a word during the test. 我们在测验时没有说过一句话。
479. variation [,v??riei??n] n. 变化,变动??prices are subject to variation. 价格可以变动。
480. vehicle [工具,手段
the launch vehicle lifts the satellite into orbit. 运载火箭将人造卫星送入运行轨道。
481. applause [?pl?:z] n. 鼓掌,掌声
his every sentence was followed by a burst of applause. 他的每一句话都赢得一阵掌声。
482. appliance [?plai?ns] n. 器具,器械；设备
the kitchen is equipped with modern appliances. 这间厨房里安装了各种现代化设备。
483. consent [k?nsent] n. 准许,同意 vi (to)准许,同意
they would not consent to my leaving school. 他们不同意我辍学。
484. conquer [,k??k?] vt. 征服；攻克；战胜the city was conquered overnight. 那座城市在夜里被攻克。
485. defect [difekt] n. 缺点,缺陷
we must correct our defects as soon as possible. 我们必须尽快纠正我们的缺点。
486. delicate [delikit] a. 易碎的；娇弱的；精美的
take care with these delicate flowers. 当心这些娇嫩的鲜花。
487. evolve [iv?lv] v.演变??language is constantly and gradually evolving. 语言在不断地缓慢发展。
488. evolution [,i:v?lu:??n] n. 演变,进化
in the course of evolution, some birds have lost the power of flight.
在进化的过程中, 一些鸟丧失了飞行能力。
489. frow [fraun] n v./n. 皱眉；表示不满[(+at/on/upon)]??the father frowned on his sons behavior.
490. frustrate [fr?s
he was frustrated by repeated failures. 他因一再失败而灰心丧气。
491. guarantee [,g?r?nll finish the job on time.
492. guilty [gilti] a. 内疚的；有罪的
bob felt guilty that he had not made an attempt to save her. 鲍勃为未曾设法救她而感到内疚。
493. jealous [s reputation. 他妒忌朋友的声誉。
494. jeans [d?i:nz] n. 牛仔裤??a woman in blue jeans walked into the store.
495. liquor [lik?] n. 酒,烈性酒??are brandy and other liquors available here?
496.liter /litre [li:t?] n. 公升???a liter is equal to 1,000 c.c. 一公升等于一千毫升。
497. modest [m?dist] a. 谦虚的；谨慎的；稳重的；he is a very modest person. 他是位非常谦逊的人。
498. molecule [m?likju:l] n. 分子
the structure of molecules can be seen under an electron microscope.
分子的结构可在电子显微镜下观察到。
499. orbit [知识范围 v. （绕…）作轨道运行
the satellite was launched into orbit around the moon. 卫星被发射进入绕月球运行的轨道。
500. participate [pɑ:tisipeit] v. (in)参与,参加 everyone can participate in this game.
501.particle n. [pɑ:tikl] 微粒 ????there are particles of dust in the air. 空气中有尘粒。
502.particularly ad. [p?t particularly clever. 他并不特别聪明。
503. respond vi. [risp?nd] 回答,答复；反应??all you know is how they respond.
504.response n. [risp?ns] 回答,答复；反应
effectively, their response was a refusal.实际上，他们的答复是拒绝。
505.sensible a. [sens?bl]明智的??he is a sensible person.他是一个明白人。
506.sensitive a. [sensitiv]敏感到,灵敏的the tooth is sensitive to cold.这颗牙对冷的东西很敏感。
507.tremble vi.] [trembl]颤抖???now, world will tremble once again.世界将再次颤栗。
508.tremendous a. [trimend?s]巨大的；精彩的it was a tremendous experience.这是很棒的经历。
509. trend [trend] n. 趋向,倾向???this trend is continuing. 目前，这个趋势仍然持续。
510.trial n. [trai?l] 审讯；试验??will opponents get a fair trial?反对者们会得到公平的审判吗？
511.apparent a. [?p?r?nt] 显然的,明白的
the trend has been apparent in oil.这一趋势在石油领域也很明显。
512.appetite n. [?pitait]胃口；欲望??the baby has a good appetite.这个宝宝有很好的胃口。
513.deposit n. [[dip?zit]存款,定金 v.存放,储蓄
dont forget my deposit and your laptop.别忘了我的定金和你的手提电脑。
514.deputy n. [depjuti] 副职,代表
i must find someone to act as a deputy for me during my absence.
我必须找一个人，在我离开期间代理我的职务。
515.derive vt. [diraiv]取得,得到；(from)起源于
we shall derive much benefit from reading good novels. 我们将从优秀小说中获得很大好处。
516.descend v. [disend]下来,下降??it is easier to descend than to ascend.下降轻易上升难。
517. missile n. [misail, -s?l] 导弹???in january 2007 china launched a missile.
518.mission n. [mi??n] 使命；代表团?but this was his mission.但是，这就是他的使命。
519.mist n. [mist]薄雾?????mist rose from the waterfall.云雾从瀑布中升腾起来。
520.noticeable a. [n?utis?bl] 显而易见到?the class has made noticeable improvement.
521.notify vt. [n?utifai]通知,告知??please notify us if the above is not correct.
522.notion n. [n?u??n]概念；意图,想法
not for him, then, was the notion of .因此，“有效市场”的概念对他来说是不成立的。
523.resemble vt. [rizembl] 像,类似于
they resemble each other in shape but not in color.它们的形状相似，可是颜色不同。
524.reveal vt. [rivi:l] 揭露?your list will reveal your true feelings.你的列表将要揭露你真实的感受。
525.revenue n. [rev?nju:] 收入,岁入；税收??tax revenues increased last year. 去年税收增加了。
526.shelter n. [?elt?]掩蔽处；住所
voters expect national leaders to shelter them from the storms.希望国家领导人能保护自己免受冲击。
527.shield n. [?i:ld] 防护物,盾 vt. 保护,防护
yes, of course. my shield is the strongest. it can stop any spear in the world.
当然是了。我的盾是最结实的，它能抵挡住世界上任何矛。
528.vital a. [vait?l] 重要的；致命的,生命的
let me start off by saying that sleep is vital to our well-being and health.
让我以这句话开头吧，睡眠对于我们的身心健康是非常重要的。
529.vitally ad. [vait?li]极度,非常；致命地
530. urban a. [?:b?n]城市的 ??urban areas. 市区
531.urge vt. [?:d?] 鼓励,激励
i urge these people to look to africa for inspiration.我很希望这些朋友看一看非洲带来的启示。
532.urgent a. [?:d??nt]急迫的,紧急得
533.usage n. [ju:zid?]使用,用法??american usage differs from english usage in certain ways.
534.violence n. [s too much violence on tv nowadays.
535. violent a. [vai?l?nt]强暴的??it is a violent place.这是一个暴力的地方。
536.violet a. [vai?l?t]紫色的???a rainbow is red on one edge, violet on the other.
537.weed n. [wi:d]杂草,野草?a weed is only a misplaced plant.杂草只不过是长错地方罢了。
538.welfare n. [welfε?]福利there are other measures of human welfare.其它指标也可衡量人类福利
539. whatsoever ad. [,hw?ts?uev?]（用于否定句）任何
none whatsoever. its just a book.什么都没有，只是一本书而已。
540. whereas conj. [hwε??z]然而,但是,尽管
blue is calming whereas red is exciting.蓝色让人安静，而红色则令人兴奋。
541.essential a. [isen??l] 必不可少的；本质的grammar is essential to language.
542.estimate n./vt. [estimeit]估计,估量what is your estimate of the market?你对市场的估计是什么？
543.evaluate vt. [iv?ljueit] 评估,评价?how do you evaluate success ?你是如何评价成功的?
544.exceed vt. [iksi:d]超过,越出??they exceed us in number.他们在人数上超过我们。
545.exceedingly ad. [iksi:di?li] 非常,极其
this task was exceedingly well done.这项任务（被）做得非常出色。
546.exclaim v. [ik
547.exclude vt. [iksklu:d]把…排斥在外,不包括
i think, we can exclude that right away.我想，我们能马上删除这种可能性。
548.exclusive a. [iksklu:siv] 独有的,排他的
pure and exclusive competition leads to failures.纯粹排他的竞争会导致一事无成。
549.excursion n. [iksk?:??n] 远足?the whole excursion took ten hours.
550. flash vi. [fl??] 闪光,闪耀??the stars flashed in the night sky. 夜空中群星闪烁。
551.flee vi. [fli:] 逃走??he was trying to flee the country?why? 他想逃离这个国家?为什么?
552.flexible a. [fleksibl] 易弯曲的??our economy is flexible.我们的经济是灵活的。
553.flock n. [fl?k]羊群,（鸟兽等）一群；一伙人the flock produced many lambs. 羊群产了好些羊羔。
554.hardware n. [hɑ:dwε?] 五金器具??father deals in hardware.我父亲做五金生意。
555.harmony n. [hɑ:m?ni]和谐,融洽??they help us live in harmony. 它们帮我们和谐地生活。
556.haste n. [heist]急速,急忙????haste does not bring success. 匆忙行事不会成功。
557.hatred n. [heitrid]憎恶,憎恨???her hatred for them grew more. 她对他们越来越憎恨。
558.incident n. [insid?nt] 事件,事变
the ugly incident outraged many onlookers. 这件不堪丑事让许多旁观者义愤填膺。
559. index n. [indeks] 索引,标志?the card catalog is the index to the books. 卡片目录是书籍的索引。
560.infant n. [s infant is very lovely. 我姐姐的小婴儿很是可爱。
561.infect v. [infekt]传染???a virus wants to infect your body.病毒要传播你的身体。
562.inferior a. [infi?ri?]劣等的,次的,下级的??nobody is superior, nobody is inferior.
563.infinite a. [infin?t] 无限的??we must never lose infinite hope.我们绝不可失去无限的希望。
564.ingredient n. [inɡri:di?nt]组成部分?the key ingredient is garlic.主要成分是大蒜。
565. inhabitant n. [inh?bit?nt] 居民?the inhabitant of the island is friendly. 岛上的居民很友善。
566.jail n. [d?eil]监狱
a bad jail wastes a body quickly.监狱的恶劣环境让身体消瘦起来特别得快。
567. jam n. [d??m]果酱；拥挤,堵塞?what a terrible traffic jam! 交通阻塞好严重！
568.jewel n. [d?u:?l]宝石??give him one of my jewel eyes. 摘下我眼中的一颗宝石送给他吧。
569.joint a. [d??int]连接的；共同的the two countries signed a joint communique. 两国签署了联合公报。
570.junior a. [d?u:nj?] 年少的；资历较浅的
john is one of the junior lawyers in the company. 约翰是公司里一个-轻的律师。
571.laser n. [leiz?] 激光???we keep a laser record. 我们保存激光唱片。
572. launch vt. [l?:nt?, lɑ:nt?]发动,发起
they can launch rockets to push the rock off its course. 他们可以发射火箭将石头推离轨道。
573.luxury n. [l?ɡ??ri]奢侈；奢侈品it is luxury to be understood.
574.magnet n. [m?ɡnit]磁铁,磁体the earth acts like a big magnet.地球的作用像一块大磁铁。
575. male a. [meil]男性的,雄的?a male was set free in 2006. 2006年一只雄性大熊猫回归大自然。
576.female a. [fi:meil] 女性的,雌的?is your assistant male or female? 你的助理是男的还是女的？
577.manual a. [m?nju?l]用手的,手工做的 n. 手册 he is a manual worker. 他是一位体力劳动者。
578.manufacture vt./n. 制造,加工[,m?njuf?kt??]
the workers in that factory manufacture furniture. 那家工厂的工人做家俱。
579.marine a. [m?ri:n]海的；海产的?look, here is a small marine world.
580. mutual a. [mju:t?u?l, -tju?l] 相互的 focus on mutual goals. 将重点放在共同的利益上。
581.naked a. [neikid]裸露的???some savages always go naked. 有些野蛮人总是赤身裸体。
582.negative a. [neɡ?tiv]否定的,消极的
i think the film has some negative effect. 我认为这电影有一些消极影响。
583.neglect vt. [niɡlekt] 忽视,忽略we ought not to neglect ourselves. 我们不应该忽视自己的健康。
584.origin n. [?:-]起源,出身??origin of the sugar is brazil. 白砂糖的原产是巴西。
585. oval a. [?uv?l]椭圆形的 n. 椭圆形??our table is oval in shape. 我们的桌子是椭圆形的。
586.outset n. [autset]开始,开端at the outset, it looked like a nice day. 开始的时候，天看上去很晴朗。
587.presumably ad. [prive read this notice.
588. prevail vi. [priveil, pri:-] 流行,盛行；战胜，获胜
truth is great and will prevail. 真理是至高无上的，且必 将获胜。
589.quit v. [kwit]停止??why did you quit your last job? 你为什么辞掉了以前那份工作？
590.quotation n. [kw?utei??n, k?u-] 引文,引语，报价
our quotation is subject to 5% commission. 我们的报价享受5%的佣金。
591.recreation n. [,rekriei??n, -kri:-]娱乐活动exercise is very good recreation.运动是很好的休閒活动。
592.recruit vt. [rikru:t] 招募,吸收（新成员?）
the first step is to recruit new trainees. 第一步就是要招收新学员。
593.rival n. [raiv?l] 竞争对手,敌手?a great man cannot brook a rival. 伟人不能容忍竞争者。
594.shuttle n. [??tl]梭子；航天飞机
we all like to see the space shuttle arrive. 我们都很喜欢看到航天飞机的到来。
595.skim vt. [skim] 搬（去）,掠过；浏览just skim the first chapter.只要把第一章浏览一下就行了。
596.sketch n. [sket?] 草图；梗概???she is still working on her sketch.她还在画她的素描。
597.slender a. [slend?] 苗条的,修长的??fanny was a pretty and slender girl.
598. theme n. [θi:m]主题?????the expo.
本届世博会的主题是“城市，让生活更美好”。
599.textile n. [d better explain. i represent a very large textile group.
600.tropical a. [tr?pik?l] 热带的,炎热的
we want to swim and eat tropical fruit.我们想去游泳，吃热带水果。
601. kneel [ni:l] vi. 跪??at church people kneel when they pray.
602. label [＇leib?l] n. 标签vt. 1. 贴标签于2.把…称为，把…说成是…，
they labelled him as dishonest.他们认为他不诚实。
603. merchant [＇m?:t??nt] n. 商人?the merchants of arab are doing their things all of the world.
604. mere [mi?] a. 仅仅的,只不过的；纯粹的
a mere 2% of their budget has been spent on publicity.他们的预算开支只有2%用于宣传。
605. nuisance [＇nju:s?ns] n. 令人讨厌的东西（或人）the dog is a terrible nuisance.这只狗真令人讨厌。
606. numerous [＇nju:m?r?s] a. 众多的,许多的there are numerous people in the square.有许多人在广场上。
607. parade [p?＇reid] n. 游行 v. 列队行进
the olympic games began with a parade of all the competing nations.奥运会以所有参赛国列队进场开始。
608. pants［p?nts] [pl.] n. 长裤；内裤?he rushed out in pants.他穿着短裤就冲出来。
609. partial［＇pɑ:??l ］a. 部分的；热爱，钟爱 ；偏颇，偏袒
a good teacher should not be partial to anyone of the students. 好的老师不应偏袒任何一个学生。
610. passport ［＇pɑ:sp?:t ］n. 护照?your passports expire. 你们的护照满期了。
611. prescribe ［pri＇skraib] vt. 开药,吩咐采用…疗法the doctor prepared to prescribe a receipt.
612. primitive [＇primitiv] a. 原始的,早期的
primitive man made himself primitive tools from stones and bones.
613. ridge ] [rid?] n. 脊,山脊,埂??we walked along the mountain ridge.我们顺着山脊行走。
614. ridiculous [ri＇dikjul?s] a. 可笑的,荒漠的?itve ever heard in my life.
615. rigid [＇rid?id] a. 严格的；僵硬的??she was rigid with fear.她害怕得全身僵住了。
616. withstand [wie＇st?nd ]vt. 经受,承受?the bridge withstands the flood.那座桥经得起洪水。
617. witness[witnis] n. 目击者；证据 vt. 注意到；证明
no one could witness that he was present.没有人能证明他在现场。
618. withdraw [wie＇dr?:] v. 收回,撤销the general decided to withdraw his soldiers.那位将军决定撤军。
619. slippery [＇slip?ri] a. 滑的???we found it very slippery under foot.我们感到地上很滑。
620. smash [sm??] vt. 粉碎,打烂???the cup fell and smashed.杯子落下来摔碎了。
621. snap［sn?p] n./vt. 折断,拉断；快照?the branch suddenly snapped.树枝突然折断了。
622. software [s?ftwε?] n. 软件???computer software计算机软件
623. solar [＇s?ul?] a. 太阳的???this is a solar calendar.这是阳历
624. lunar ［＇lju:n?] a. 月的,月球的may 5th of the a chinese lunar calendar is the dragon boat festival.
625. submerge [s?bm?:d?] vi. 潜入水中
626. submit［ s?b＇mit] vi.(to)屈服,听从vt. 提交, 呈递
the developers submitted building plans to the council for approval.开发商把施工方案提交议会以求批准。
627. timber ［＇timb? ］n. 木材,原木??the timber has started to decay.木材已开始腐烂。
628. tissue ［＇tisju:] n. 组织；薄纱,手巾纸?give some face tissues to me.给我些面巾纸。
629. title ［＇taitl ］n. 题目,标题???i prefer the titleof reporter ．我喜欢报告者的标题。
630. tone [t?un] n. 语气,音调????his tone is rather unfriendly.他的口气很不友好。
631. drift［ drift] vi. 漂,漂流????the snow drifted everywhere.雪飘至各处。
632. drip［ drip] vt. & vi. 滴????water is dripping from the roof.水正从屋顶滴下来。
633. durable [＇dju?r?bl] a. 耐用的,持久的??i want something durable.
634. duration [dju?rei??n] n. 持续,持续期间.??earthquake damage and duration increased.
635. dusk[d?sk] n. 黄昏,薄暮the street lights come on at dusk and go off at dawn.
636. leather [＇lee? ]n. 皮革???he has a pair of leather shoes.他有一双皮鞋。
637. legislation[,led?islei??n] n. 法律,法规；立法?they began to draft

legislation.他们开始起草法规。
638. leisure[le??] n. 闲暇；悠闲???he read books at his leisure.他在空闲时读一些书。
639. loose［ lu:s ］a. 松的,宽松的??she is wearing a loose dress.她穿着一件宽松的连衣裙。
640. loosen [＇lu:s?n] v. 解开,放松??the medicine may loosen your cough.这种药能减轻你的咳嗽。
641. earnest [＇?:nist] a. 认真的,诚挚的.??i like earnest pupils.
642. hence ［hens] ad. 因此,所以；今后,从此its handmade and hence expensive.这是手工做的, 因此很贵。
643. echo ［＇ek?u] n. 回音,回声?i could hear the echoes in this temple.我在这座庙里能听到回声。
644. elaborate ［i＇l?b?reit] a. 精心设计的,复杂的vi. 详尽说明
you understand the situation; i neednt elaborate any further.
645. elastic [i＇l?stik]n. 橡皮圈（带） a. 有弹性的；可伸缩的, 灵活的
our plans are fairly elastic.我们的计划有相当的灵活性
646. elbow ［＇elb?u] n. 肘??dont lay your elbows on the desk.．不要将两肘放在书桌上。
647. electron [ilektr?n] n. 电子??an electron tube or a vacuum tube. 电子管或真空管
648. volcano[v?lkein?

u] n. 火山??the eruption of a volcano is spontaneous.火山的爆发是自发的。
649. volume [v?lju:m] n. 卷,册；体积,容量
for that article he has worked over some 30 volumes of chinese history.
650. fatigue ［f?＇ti:ɡ］n. 疲劳,劳累??the old lady cant bear the fatigue of a long journey.
651. faulty [f?:lti] a. 有错误的,有缺点的??we traced the trouble to a faulty transformer.
我们查出故障出在一个有毛病的变压器上。
652. favorable[feiv?r?bl] a. 称赞道；有利的,顺利的they are favorable to the proposal.他们赞同这项提议。
653. favorite[feiv?rit] a. 特别受喜欢的 n. 喜爱的人或物football is my favorite．足球是我最喜欢的。
654. gallery [＇ɡ?l?ri] n. 画廊the art galleries of florence are very famous.佛罗伦萨的美术馆非常著名。
655. gallon［＇ɡ?l?n ］n. 加仑??id like five gallons of wine.我要五加仑葡萄酒。
656. gap [ɡ?p] n. 间隔,差距
how can we bridge the gap between rich and poor? 怎样才能缩小贫富之间的差距？
657. garbage[ɡɑ:bid?] n. 垃圾,废物
the sanitation department is in charge of

garbage disposal.环境卫生部门负责处理垃圾。
658. gaze[ɡeiz] v. 凝视,注视???please dont only gaze at the coffee in your cup.
659. gear [ɡi?] n. 齿轮,传动装置??you have to change gear manually in this car; its not automatic.
660. gene [d?i:n] n. 基因
in this case, an advantageous gene transfer might be preserved. 这样的话，优势基因转移将会得以保留。
661. lest [lest]conj. 唯恐,免得i shall ring you up lest you forget to come. 我会打电话给你，以免你忘了来。
662. liable[lai?bl] a. 可能的,大概的；(to)易于…的；有责任的，有义务的
every man is liable to error. 人总是要犯错误。
663. liberal[lib?r?l]a. 自由的；慷慨的；
they have also tended to be more liberal economically than their french counterparts
在经济上，他们趋向于比他们的法国同行更加强调自由主义。
664. liberty[lib?ti] n. 自由??you may extinguish a nation, but not the love of liberty.
你可以消灭一个国家，但不能消灭对自由的热爱。
665. license /license[s license?
666. moisture[m?ist??] n. 水分；湿度；潮湿；降雨量plants suck moisture from the

earth.
667. motivate[m?utiveit] vt. 激励,激发teachers should motivate students to be creative.
668. motive[m?utiv] n. 动机,目的so far investigators have not offered any motive for the attack. 直至目前，调查人员还没有任何可能的袭击动机。
669. generate[d?en?reit] vt. 生成,产生（光、热、电等）；生殖
the new car factory will generate a lot of jobs in the area. 新汽车厂将为该地区创造大量就业机会。
670. genius[d?i:nj?s] n. 天才,天赋 genius is nothing but labor and diligence. 天才只不过是劳动加勤奋。
671. genuine [d?enjuin] a. 真的,真诚的
the hostess warm and genuine welcome made us feel at home at once.
672. gasoline [ɡ?s?li:n] n. 汽油??his old car consumed much gasoline. 他的旧车耗油很多。
673. germ [d??:m] n. [植] 胚芽，萌芽；微生物,细菌
keep yourself and the bathrooms clean and germ-free.讲究卫生，保持洗手间清洁无病菌。
674. gesture[d?est??] n. 姿势,手势?handshake is a gesture of friendship. 握手是一种友好的表示。
675. giant[d?ai?nt] a. 巨大的 n. 巨人,巨物the whale is the giant of the sea. 鲸鱼是海洋中的庞然大物。
676. glimpse [ɡlimps]n. 一瞥,一看?i caught a glimpse of the waterfall when our train passed by.
677. glory [ɡl?:ri] n. 光荣,荣誉
they fought for glory and won a glorious victory. people glorified them.
他们为荣誉而战，取得了辉煌的胜利，人们颂扬他们。
678. glorious[ɡl?:ri?s] adj. 光荣的,极好的?pardon is the most glorious revenge. 宽恕是最伟大的报复。
679. golf [ɡ?lf] n. 高尔夫球运动。?
680. hydrogen[haidr?d??n] n. 氢?hydrogen is the lightest element . 氢是最轻的元素。
681. oxygen [?ksid??n] n. 氧
682. hostile [h?stail]a. 敌对的,敌意的
at worst, they sound hostile to democracy. 从最坏方面看，他们似乎对民主有敌意。
683. household [haush?uld]n. 家庭,户adj. 家庭的；日常的?household expenses. 家庭开支。
684. hook [huk]n. 钩vt. 钩住；引上钩
685. holy [h?uli] a. 神圣地,圣洁的 ??the holy ceremony he has just heard has moved him.
686. hint[hint] n. vt. 暗示,示意??the calm sea gives no hint of the coming storm.
687. hesitate [heziteit]v. 踌躇； 犹豫
opportunities to use english are all around you. so dons fine. 在我们身旁就有许多使用英语的机会。所以不要犹豫，勇敢地投入吧！周遭的环境很适宜的。
688. highlight [hailait] vt. 强调,突出n. 最精彩的部分
the highlight of the trip was the visit to the eiffel tower. 这次旅行最精彩的部分就是参观艾菲尔铁塔。