Signs of Vegetation.--The Fantastic Notion of a French Author.--A Magnificent Country.--The Kingdom of Adamova.--The Explorations of Speke and Burton connected with those of Dr. Barth.--The Atlantika Mountains.--The River Benoue.--The City of Yola.--The Bagele.--Mount Mendif.

From the moment of their departure, the travellers moved with great velocity¹. They longed to leave behind them the desert, which had so nearly been fatal to them.

About a quarter-past nine in the morning, they caught a glimpse of some signs of vegetation: herbage floating on that sea of sand, and announcing, as the weeds upon the ocean did to Christopher Columbus, the nearness of the shore--green shoots peeping up timidly between pebbles² that were, in their turn, to be the rocks of that vast expanse.

Hills, but of trifling³ height, were seen in wavy⁴ lines upon the horizon. Their profile, muffled⁵ by the heavy mist, was defined but vaguely⁶. The monotony, however, was beginning to disappear.

The doctor hailed with joy the new country thus disclosed, and, like a seaman⁷ on lookout⁸ at the mast-head, he was ready to shout aloud:

"Land, ho! land!"

An hour later the continent spread broadly before their gaze, still wild in aspect, but less flat, less denuded⁹, and with a few trees standing¹⁰ out against the gray sky.

"We are in a civilized¹¹ country at last!" said the hunter.

点击收听单词发音  

1 velocity
n.速度，速率
参考例句：
Einstein's theory links energy with mass and velocity of light.爱因斯坦的理论把能量同质量和光速联系起来。 The velocity of light is about 300000 kilometres per second.光速约为每秒300000公里。

2 pebbles
[复数]鹅卵石； 沙砾； 卵石，小圆石( pebble的名词复数 )
参考例句：
The pebbles of the drive crunched under his feet. 汽车道上的小石子在他脚底下喀嚓作响。 Line the pots with pebbles to ensure good drainage. 在罐子里铺一层鹅卵石，以确保排水良好。

3 trifling
adj.微不足道的；没什么价值的
参考例句：
They quarreled over a trifling matter.他们为这种微不足道的事情争吵。 So far Europe has no doubt, gained a real conveniency,though surely a very trifling one.直到现在为止,欧洲无疑地已经获得了实在的便利，不过那确是一种微不足道的便利。

4 wavy
adj.有波浪的，多浪的，波浪状的，波动的，不稳定的
参考例句：
She drew a wavy line under the word.她在这个词的下面画了一条波纹线。 His wavy hair was too long and flopped just beneath his brow.他的波浪式头发太长了，正好垂在他的眉毛下。

5 muffled
adj.（声音）被隔的；听不太清的；（衣服）裹严的；蒙住的v.压抑，捂住( muffle的过去式和过去分词 )；用厚厚的衣帽包着（自己）
参考例句：
muffled voices from the next room 从隔壁房间里传来的沉闷声音 There was a muffled explosion somewhere on their right. 在他们的右面什么地方有一声沉闷的爆炸声。 来自《简明英汉词典》

6 vaguely
adv.含糊地，暖昧地
参考例句：
He had talked vaguely of going to work abroad.他含糊其词地说了到国外工作的事。 He looked vaguely before him with unseeing eyes.他迷迷糊糊的望着前面，对一切都视而不见。

7 seaman
n.海员，水手，水兵
参考例句：
That young man is a experienced seaman.那个年轻人是一个经验丰富的水手。 The Greek seaman went to the hospital five times.这位希腊海员到该医院去过五次。

8 lookout
n.注意，前途，瞭望台
参考例句：
You can see everything around from the lookout.从了望台上你可以看清周围的一切。 It's a bad lookout for the company if interest rates don't come down.如果利率降不下来，公司的前景可就不妙了。

9 denuded
adj.[医]变光的，裸露的v.使赤裸( denude的过去式和过去分词 )；剥光覆盖物
参考例句：
hillsides denuded of trees 光秃秃没有树的山坡 In such areas we see villages denuded of young people. 在这些地区，我们在村子里根本看不到年轻人。 来自辞典例句

10 standing
n.持续，地位；adj.永久的，不动的，直立的，不流动的
参考例句：
After the earthquake only a few houses were left standing.地震过后只有几幢房屋还立着。 They're standing out against any change in the law.他们坚决反对对法律做任何修改。

11 civilized
a.有教养的，文雅的
参考例句：
Racism is abhorrent to a civilized society. 文明社会憎恶种族主义。 rising crime in our so-called civilized societies 在我们所谓文明社会中日益增多的犯罪行为

12 hitch
v.免费搭(车旅行)；系住；急提；n.故障；急拉
参考例句：
They had an eighty-mile journey and decided to hitch hike.他们要走80英里的路程，最后决定搭便车。 All the candidates are able to answer the questions without any hitch.所有报考者都能对答如流。

13 drawn
v.拖，拉，拔出；adj.憔悴的，紧张的
参考例句：
All the characters in the story are drawn from life.故事中的所有人物都取材于生活。 Her gaze was drawn irresistibly to the scene outside.她的目光禁不住被外面的风景所吸引。

14 devours
吞没( devour的第三人称单数 )； 耗尽； 津津有味地看； 狼吞虎咽地吃光
参考例句：
If anyone tries to harm them, fire comes from their mouths and devours their enemies. 若有人想要害他们，就有火从他们口中出来，烧灭仇敌。 It eats away parts of his skin; death's firstborn devours his limbs. 他本身的肢体要被吞吃，死亡的长子要吞吃他的肢体。

15 locomotion
n.运动，移动
参考例句：
By land,air or sea,birds are masters of locomotion.无论是通过陆地，飞越空中还是穿过海洋，鸟应算是运动能手了。 Food sources also elicit oriented locomotion and recognition behavior patterns in most insects.食物源也引诱大多数昆虫定向迁移和识别行为。

16 devoured
吞没( devour的过去式和过去分词 )； 耗尽； 津津有味地看； 狼吞虎咽地吃光
参考例句：
She devoured everything she could lay her hands on: books, magazines and newspapers. 无论是书、杂志，还是报纸，只要能弄得到，她都看得津津有味。 The lions devoured a zebra in a short time. 狮子一会儿就吃掉了一匹斑马。

17 dignified
a.可敬的，高贵的
参考例句：
Throughout his trial he maintained a dignified silence. 在整个审讯过程中，他始终沉默以保持尊严。 He always strikes such a dignified pose before his girlfriend. 他总是在女友面前摆出这种庄严的姿态。

18 winding
n.绕，缠，绕组，线圈
参考例句：
A winding lane led down towards the river.一条弯弯曲曲的小路通向河边。 The winding trail caused us to lose our orientation.迂回曲折的小道使我们迷失了方向。

19 tangled
adj. 纠缠的，紊乱的 动词tangle的过去式和过去分词
参考例句：
Your hair's so tangled that I can't comb it. 你的头发太乱了，我梳不动。 A movement caught his eye in the tangled undergrowth. 乱灌木丛里的晃动引起了他的注意。

20 thickets
n.灌木丛( thicket的名词复数 )；丛状物
参考例句：
Small trees became thinly scattered among less dense thickets. 小树稀稀朗朗地立在树林里。 来自辞典例句 The entire surface is covered with dense thickets. 所有的地面盖满了密密层层的灌木丛。 来自辞典例句

21 pungent
adj.（气味、味道）刺激性的，辛辣的；尖锐的
参考例句：
The article is written in a pungent style.文章写得泼辣。 Its pungent smell can choke terrorists and force them out of their hideouts.它的刺激性气味会令恐怖分子窒息，迫使他们从藏身地点逃脱出来。

22 flora
n.(某一地区的)植物群
参考例句：
The subtropical island has a remarkably rich native flora.这个亚热带岛屿有相当丰富的乡土植物种类。 All flora need water and light.一切草木都需要水和阳光。

23 afterward
adv.后来；以后
参考例句：
Let's go to the theatre first and eat afterward. 让我们先去看戏，然后吃饭。 Afterward,the boy became a very famous artist.后来，这男孩成为一个很有名的艺术家。

24 butt
n.笑柄；烟蒂；枪托；臀部；v.用头撞或顶
参考例句：
The water butt catches the overflow from this pipe.大水桶盛接管子里流出的东西。 He was the butt of their jokes.他是他们的笑柄。

25 fauna
n.(一个地区或时代的)所有动物，动物区系
参考例句：
This National Park is an area with unique fauna and flora.该国家公园区域内具有独特的动物种群和植物种群。 Fauna is a biological notion means all the animal life in a particular region or period. 动物群是一个生物学的概念，指的是一个特定时期或者地区的所有动物。

26 revelled
v.作乐( revel的过去式和过去分词 )；狂欢；着迷；陶醉
参考例句：
The foreign guests revelled in the scenery of the lake. 外宾们十分喜爱湖上的景色。 来自辞典例句 He revelled in those moments of idleness stolen from his work. 他喜爱学习之余的闲暇时刻。 来自辞典例句

27 dense
a.密集的，稠密的，浓密的；密度大的
参考例句：
The general ambushed his troops in the dense woods. 将军把部队埋伏在浓密的树林里。 The path was completely covered by the dense foliage. 小路被树叶厚厚地盖了一层。

28 concealed
a.隐藏的，隐蔽的
参考例句：
The paintings were concealed beneath a thick layer of plaster. 那些画被隐藏在厚厚的灰泥层下面。 I think he had a gun concealed about his person. 我认为他当时身上藏有一支枪。

29 rending
v.撕碎( rend的现在分词 )；分裂；（因愤怒、痛苦等而）揪扯（衣服或头发等）；（声音等）刺破
参考例句：
The cries of those imprisoned in the fallen buildings were heart-rending. 被困于倒塌大楼里的人们的哭喊声令人心碎。 来自《现代汉英综合大词典》 She was rending her hair out in anger. 她气愤得直扯自己的头发。 来自《简明英汉词典》

30 devastating
adj.毁灭性的，令人震惊的，强有力的
参考例句：
It is the most devastating storm in 20 years.这是20年来破坏性最大的风暴。 Affairs do have a devastating effect on marriages.婚外情确实会对婚姻造成毁灭性的影响。

31 trickled
v.滴( trickle的过去式和过去分词 )；淌；使)慢慢走；缓慢移动
参考例句：
Blood trickled down his face. 血从他脸上一滴滴流下来。 来自《简明英汉词典》 The tears trickled down her cheeks. 热泪一滴滴从她脸颊上滚下来。 来自《简明英汉词典》

32 cascades
倾泻( cascade的名词复数 )； 小瀑布（尤指一连串瀑布中的一支）； 瀑布状物； 倾泻（或涌出）的东西
参考例句：
The river fell in a series of cascades down towards the lake. 河形成阶梯状瀑布泻入湖中。 Turning into the sun, he began the long, winding drive through the Cascades. 现在他朝着太阳驶去，开始了穿越喀斯喀特山脉的漫长而曲折的路程。 来自英汉文学 - 廊桥遗梦

33 northward
adv.向北；n.北方的地区
参考例句：
He pointed his boat northward.他将船驶向北方。 I would have a chance to head northward quickly.我就很快有机会去北方了。

34 swollen
adj.肿大的，水涨的；v.使变大，肿胀
参考例句：
Her legs had got swollen from standing up all day.因为整天站着，她的双腿已经肿了。 A mosquito had bitten her and her arm had swollen up.蚊子叮了她，她的手臂肿起来了。

35 wondrous
adj.令人惊奇的，奇妙的；adv.惊人地；异乎寻常地；令人惊叹地
参考例句：
The internal structure of the Department is wondrous to behold.看一下国务院的内部结构是很有意思的。 We were driven across this wondrous vast land of lakes and forests.我们乘车穿越这片有着湖泊及森林的广袤而神奇的土地。

36 hues
色彩( hue的名词复数 )； 色调； 信仰； 观点
参考例句：
When the sun rose a hundred prismatic hues were reflected from it. 太阳一出，更把它映得千变万化、异彩缤纷。 Where maple trees grow, the leaves are often several brilliant hues of red. 在枫树生长的地方，枫叶常常呈现出数种光彩夺目的红色。

37 prodigality
n.浪费，挥霍
参考例句：
Laughter is easier minute by minute, spilled with prodigality. 笑声每时每刻都变得越来越容易，毫无节制地倾泻出来。 来自辞典例句 Laughter is easier minute by minute, spilled with prodigality, tipped out at a cheerful word. 笑声每时每刻都变得越来越容易，毫无节制地倾泻出来，只要一句笑话就会引起哄然大笑。 来自英汉文学 - 盖茨比

38 trench
n./v.(挖)沟，(挖)战壕
参考例句：
The soldiers recaptured their trench.兵士夺回了战壕。 The troops received orders to trench the outpost.部队接到命令在前哨周围筑壕加强防卫。

39 scent
n.气味，香味，香水，线索，嗅觉；v.嗅，发觉
参考例句：
The air was filled with the scent of lilac.空气中弥漫着丁香花的芬芳。 The flowers give off a heady scent at night.这些花晚上散发出醉人的芳香。

40 toils
网
参考例句：
It did not declare him to be still in Mrs. Dorset's toils. 这并不表明他仍陷于多赛特夫人的情网。 The thief was caught in the toils of law. 这个贼陷入了法网。

41 attained
（通常经过努力）实现( attain的过去式和过去分词 )； 达到； 获得； 达到（某年龄、水平、状况）
参考例句：
She has attained the degree of Master of Arts. 她已获得文学硕士学位。 Lu Hsun attained a high position in the republic of letters. 鲁迅在文坛上获得崇高的地位。

42 longitude
n.经线，经度
参考例句：
The city is at longitude 21°east.这个城市位于东经21度。 He noted the latitude and longitude,then made a mark on the admiralty chart.他记下纬度和经度，然后在航海图上做了个标记。

43 penetrated
adj. 击穿的，鞭辟入里的 动词penetrate的过去式和过去分词形式
参考例句：
The knife had penetrated his chest. 刀子刺入了他的胸膛。 They penetrated into territory where no man had ever gone before. 他们已进入先前没人去过的地区。

44 accomplished
adj.有才艺的；有造诣的；达到了的
参考例句：
Thanks to your help,we accomplished the task ahead of schedule.亏得你们帮忙,我们才提前完成了任务。 Removal of excess heat is accomplished by means of a radiator.通过散热器完成多余热量的排出。

45 undoubtedly
adv.确实地，无疑地
参考例句：
It is undoubtedly she who has said that.这话明明是她说的。 He is undoubtedly the pride of China.毫无疑问他是中国的骄傲。

46 westward
n.西方，西部；adj.西方的，向西的；adv.向西
参考例句：
We live on the westward slope of the hill.我们住在这座山的西山坡。 Explore westward or wherever.向西或到什么别的地方去勘探。

47 computed
adj.[医]计算的，使用计算机的v.计算，估算( compute的过去式和过去分词 )
参考例句：
He computed that the project would take seven years to complete. 他估计这项计划要花七年才能完成。 来自《简明英汉词典》 Resolving kernels and standard errors can also be computed for each block. 还可以计算每个块体的分辨核和标准误差。 来自辞典例句

48 tributaries
n. 支流
参考例句：
In such areas small tributaries or gullies will not show. 在这些地区，小的支流和冲沟显示不出来。 These tributaries are subsequent streams which erode strike valley. 这些支流系即为蚀出走向谷的次生河。

49 ascended
v.上升，攀登( ascend的过去式和过去分词 )
参考例句：
He has ascended into heaven. 他已经升入了天堂。 来自《简明英汉词典》 The climbers slowly ascended the mountain. 爬山运动员慢慢地登上了这座山。 来自《简明英汉词典》

50 labors
v.努力争取(for)( labor的第三人称单数 )；苦干；详细分析；（指引擎）缓慢而困难地运转
参考例句：
He was tiresome in contending for the value of his own labors. 他老为他自己劳动的价值而争强斗胜，令人生厌。 来自辞典例句 Farm labors used to hire themselves out for the summer. 农业劳动者夏季常去当雇工。 来自辞典例句

51 millet
n.小米，谷子
参考例句：
Millet is cultivated in the middle or lower reaches of the Yellow River.在黄河中下游地区，人们种植谷子。 The high quality millet flour was obtained through wet milling.采用湿磨法获得了高品质的小米粉。

52 astonishment
n.惊奇，惊异
参考例句：
They heard him give a loud shout of astonishment.他们听见他惊奇地大叫一声。 I was filled with astonishment at her strange action.我对她的奇怪举动不胜惊异。

53 cones
n.（人眼）圆锥细胞；圆锥体( cone的名词复数 )；球果；圆锥形东西；（盛冰淇淋的）锥形蛋卷筒
参考例句：
In the pines squirrels commonly chew off and drop entire cones. 松树上的松鼠通常咬掉和弄落整个球果。 来自辞典例句 Many children would rather eat ice cream from cones than from dishes. 许多小孩喜欢吃蛋卷冰淇淋胜过盘装冰淇淋。 来自辞典例句

54 rendering
n.表现，描写
参考例句：
She gave a splendid rendering of Beethoven's piano sonata.她精彩地演奏了贝多芬的钢琴奏鸣曲。 His narrative is a super rendering of dialect speech and idiom.他的叙述是方言和土语最成功的运用。

55 scudding
n.刮面v.（尤指船、舰或云彩）笔直、高速而平稳地移动( scud的现在分词 )
参考例句：
Clouds were scudding across the sky. 云飞越天空。 来自辞典例句 China Advertising Photo Market-Like a Rising Wind and Scudding Clouds. 中国广告图片市场：风起云涌。 来自互联网

56 gale
n.大风，强风，一阵闹声（尤指笑声等）
参考例句：
We got our roof blown off in the gale last night.昨夜的大风把我们的房顶给掀掉了。 According to the weather forecast,there will be a gale tomorrow.据气象台预报，明天有大风。

57 abated
减少( abate的过去式和过去分词 )； 减去； 降价； 撤消（诉讼）
参考例句：
The worker's concern about cuts in the welfare funding has not abated. 工人们对削减福利基金的关心并没有减少。 The heat has abated. 温度降低了。

58 savage
adj.野蛮的；凶恶的，残暴的；n.未开化的人
参考例句：
The poor man received a savage beating from the thugs.那可怜的人遭到暴徒的痛打。 He has a savage temper.他脾气粗暴。

59 admonished
v.劝告( admonish的过去式和过去分词 )；训诫；（温和地）责备；轻责
参考例句：
She was admonished for chewing gum in class. 她在课堂上嚼口香糖，受到了告诫。 The teacher admonished the child for coming late to school. 那个孩子迟到，老师批评了他。 来自《简明英汉词典》

60 massacres
大屠杀( massacre的名词复数 )； 惨败
参考例句：
The time is past for guns and killings and massacres. 动不动就用枪、动不动就杀、大规模屠杀的时代已经过去了。 来自教父部分 Numberless recent massacres were still vivid in their recollection. 近来那些不可胜数的屠杀，在他们的头脑中记忆犹新。

61 barbarian
n.野蛮人；adj.野蛮(人)的；未开化的
参考例句：
There is a barbarian tribe living in this forest.有一个原始部落居住在这个林区。 The walled city was attacked by barbarian hordes.那座有城墙的城市遭到野蛮部落的袭击。

62 populous
adj.人口稠密的，人口众多的
参考例句：
London is the most populous area of Britain.伦敦是英国人口最稠密的地区。 China is the most populous developing country in the world.中国是世界上人口最多的发展中国家。

63 bristling
a.竖立的
参考例句：
"Don't you question Miz Wilkes' word,'said Archie, his beard bristling. "威尔克斯太太的话，你就不必怀疑了。 "阿尔奇说。他的胡子也翘了起来。 You were bristling just now. 你刚才在发毛。

64 beholder
n.观看者，旁观者
参考例句：
Beauty is in the eye of the beholder. 看起来觉得美就是美。 来自《简明英汉词典》 It has been said that art is a tryst, for in the joy of it maker and beholder meet. 有人说艺术是一种幽会，因为艺术家和欣赏者可在幽会的乐趣中相遇在一起。 来自《简明英汉词典》

65 elevation
n.高度；海拔；高地；上升；提高
参考例句：
The house is at an elevation of 2,000 metres.那幢房子位于海拔两千米的高处。 His elevation to the position of General Manager was announced yesterday.昨天宣布他晋升总经理职位。

66 descend
vt./vi.传下来，下来，下降
参考例句：
I hope the grace of God would descend on me.我期望上帝的恩惠。 We're not going to descend to such methods.我们不会沦落到使用这种手段。

67 volcanic
adj.火山的；象火山的；由火山引起的
参考例句：
There have been several volcanic eruptions this year.今年火山爆发了好几次。 Volcanic activity has created thermal springs and boiling mud pools.火山活动产生了温泉和沸腾的泥浆池。

68 craters
n.火山口( crater的名词复数 )；弹坑等
参考例句：
Small meteorites have left impact craters all over the planet's surface. 这个行星的表面布满了小块陨石留下的撞击坑。 来自《简明英汉词典》 The battlefield was full of craters made by exploding shells. 战场上布满弹坑。 来自《现代英汉综合大词典》

69 manure
n.粪，肥，肥粒；vt.施肥
参考例句：
The farmers were distributing manure over the field.农民们正在田间施肥。 The farmers used manure to keep up the fertility of their land.农夫们用粪保持其土质的肥沃。

70 gliding
v. 滑翔 adj. 滑动的
参考例句：
Swans went gliding past. 天鹅滑行而过。 The weather forecast has put a question mark against the chance of doing any gliding tomorrow. 天气预报对明天是否能举行滑翔表示怀疑。

71 heartily
adv.衷心地，诚恳地，十分，很
参考例句：
He ate heartily and went out to look for his horse.他痛快地吃了一顿，就出去找他的马。 The host seized my hand and shook it heartily.主人抓住我的手，热情地和我握手。

72 relished
v.欣赏( relish的过去式和过去分词 )；从…获得乐趣；渴望
参考例句：
The chaplain relished the privacy and isolation of his verdant surroundings. 牧师十分欣赏他那苍翠的环境所具有的幽雅恬静，与世隔绝的气氛。 来自辞典例句 Dalleson relished the first portion of the work before him. 达尔生对眼前这工作的前半部分满有兴趣。 来自辞典例句

73 refreshing
adj.使精神振作的，使人清爽的，使人喜欢的
参考例句：
I find it'so refreshing to work with young people in this department.我发现和这一部门的青年一起工作令人精神振奋。 The water was cold and wonderfully refreshing.水很涼，特别解乏提神。

74 slumber
n.睡眠，沉睡状态
参考例句：
All the people in the hotels were wrapped in deep slumber.住在各旅馆里的人都已进入梦乡。 Don't wake him from his slumber because he needs the rest.不要把他从睡眠中唤醒，因为他需要休息。