1.scout

侦察员 ( 机、舰 )；童子军；寻找；侦察

They engaged in contact sessions, at the end of which the scout was removed in order to observe what her team might do.

(IELTS7,T3,R1) 蚂蚁们参与接触会议，会后侦察员被移除以观察她带领的小组能做的事情。

2.screen

荧幕；放映 ( 电影、电视节目等 )；掩蔽；包庇

Before the eyes of the stunned, thrilled audience, photographs came to life and moved across a flat screen.

(IELTS6,T3,R1) 在目瞪口呆、兴奋异常的观众面前，一张张照片似乎被赋予了生命，在平面的荧幕上活动起来。

3.sculpture

雕塑品，雕刻品，雕像

It has some really fascinating painting sand sculptures by leading artists from all over the world. (IELTS8,T3,L2) 它有引人入胜的绘画和雕塑，这些作品来自全世界的艺术家。

4.seal

密封（容器）；封上（信封）；海豹

The ancient Egyptians sealed their sarcophagi (stone coffins) with cork.

(IELTS12,T5,R1) 古埃及人用软木密封自己的石棺。

5.seasonal

季节性的

Firstly it is used as a cue for the timing of daily and seasonal rhythms in both plants and animals, and secondly it isused to assist growth in plants.

(IELTS5,T4,R3) 首先它( 指光 ) 可以为记录动植物日常和季节性节奏变化的时间提供线索；其次，它可以用来促进植物生长。

6.sector

 ( 尤指商业、贸易等的 ) 行业，部门，领域；( 数学的 ) 扇形

Tourism currently makes up 9% of the country’s gross domestic product, and is the country’s largest exportsector.

(IELTS13,T1,R1) 旅游业目前占该国国内生产总值的9%，是该国的出口行业。

7.secure

保护……，使安全；握紧；得到，弄到；完全的，受保护的；坚固的，结实的

Some speakers of endangered languages have even produced writing systems in order to help secure the survival of their mother tongue.

(IELTS4,T2,R1) 一些濒危语种的使用者甚至已经建立文字体系，以确保他们的母语能够存续下去。

8.sediment

沉淀物

Sediment in the irrigation canals on the Nile delta causes flooding.

(IELTS5,T3,R2) 位于尼罗河三角洲的灌溉运河中的沉淀物引发了洪水灾害。

9.seminar

研讨会；研讨班，研讨小组

Now before I invite you to join in a discussion in this second part of the seminar, I’d like to make some very important points about our fieldwork.

(IELTS7,T1,L4) 在我请各位参加本次研讨会的第二部分讨论前，我想就我们的现场工作提出重要的几点。

10.senior

级别（或地位）高的；较……年长的人；级别（或地位）较高者；上级

Dr. Jill Wilkinson, senior lecturer in psychology at Surrey University and co-author of Psychology in Counselling andTherapeutic Practice, …

(IELTS5,TA,R3) Jill Wilkinson 博士是莎莉大学的心理学讲师，同时也是《咨询与治疗实践中的心理学》一书的合著者之一……

11.sensation

轰动一时的人或物，轰动；感觉，知觉

It only lasted 11 minutes but was an absolute sensation.

(IELTS6,T2,L4) 它（电影《火车大劫案》）的长度仅有 11 分钟，但在当时轰动一时。

12.sensitive

敏感的，易受影响的，易感受的；表现出细腻感情的

The area around the blowhole is also particularly sensitive and captive animals often object strongly to being touched there.

(IELTS4,T1,R2) 鲸的通气孔周围尤其敏感，圈养的动物一旦被触摸此处，就会强烈反抗。

13.sequence

一连串，一系列

At first it may have been grains or pebbles but now it is a memorised sequence of words that happen to be the names of the numbers.

(IELTS6,T2,R3) 最初，这种指代或许是谷粒或石子，但现在已经变成一串被记忆的单词，而这些单词恰巧成为数字的名称。

14.session

 ( 进行某活动连续的 ) 一段时间；( 尤指法庭、议会等 ) 开庭，开会；学年，学期

During the whole of this session, their attention is passive; they listen to the music but make no attempt to learn the material.

(IELTS7,T1,R3) 在整个过程中，他们的注意力是被动的；他们听音乐，但并不学习材料。

15.settler

( 尤指人口稀少地区的 ) 移民，殖民者

Now, there are several hypotheses about the origins of the first Neolithic settlers in Ireland. 

(IELTS6,T3,L4) 现在，对新石器时代批爱尔兰定居者的起源有几种假设。

16.shallow

浅的；（人、观点、评论等）肤浅的，浅薄的

The resin was allowed to cool in shallow trays until it hardened, and then broken up and ground into powder.

(IELTS5,T2,R1) 树脂可以在浅碟进行冷却和硬化，打碎后再研磨成粉末。

17.shell

 ( 坚果、蛋、种子等 ) 壳，荚，甲壳；炮弹；( 尤指内部已遭破坏的 )骨架，框架；剥去 ( 尤指豆荚 ) 的壳

The shell is even slightly cracked during boiling.

(IELTS4,T3,R2) 在煮蛋过程中，蛋壳稍有一点破裂。

18.shelter

掩蔽 ( 处 )；避难所，住所；掩蔽，躲避，提供庇护所

Toughened glass is found everywhere, fromcars and bus shelters to the windows, walls and roofs of thousands of buildings around the world.

(IELTS5,T4,R2) 从汽车和巴士的挡风玻璃到全世界成千上万建筑物的窗户、墙壁和屋顶，钢化玻璃随处可见。

19.shrink

（使）收缩，缩小；退缩，畏缩

When the interior finally solidifies and shrinks, it exerts a pull on the outer layer that leaves it in permanent compression and produces a tensile force inside the glass.

(IELTS5, T4, R2)当内层最终固化并收缩时，就会对外层产生一个拉力，使其处于一种永恒的压缩状态，于是就在玻璃内部产生了一种张力。

20.supplement

补充（物），增补（物）

“Many athletes are not getting the best nutrition, even through supplements,” Yessis insists. 

(IELTS4,T4,R1)“很多运动员都没有摄取的营养，即使有补品，营养也不够。”Yessis 强调说。

21.suspect

猜想，觉得；怀疑；感觉有问题

Not only is more of the brain involved inplay than was suspected, but it also seems to activate higher cognitive processes.

(IELTS4,T2,R3) 玩耍用脑不仅比人们之前猜测的要多，而且似乎能激活更的认知过程。

22.switch

（使）转变，改变；（尤指用手上、下开动的）开关

Bilinguals are also better at switching between two tasks.

(IELTS12,T6,R3) 双语使用者同样在两种任务转换中表现得更好。

23.tablet

药片

It is not effective for all insomniacs, butmany users have weaned themselves off sleeping tablets as a result of its application.

(IELTS5,TA,R3) 它不一定对所有的失眠患者有效，但是许多患者用了它之后，就不再需要安眠药了。

24.talent

天赋，才能；有才能的人，人才

So now I guess the two main things to remember here are to identify individual talent and then to utilize it.

(IELTS7,T1,L3) 我想现在要记住的两件主要事情是发现每个人的才智，然后利用它。

25.tap

利用，开发；轻拍；塞子，龙头

The flower stems may be tapped for the irsap to produce a drink.

(IELTS13,T3,R1) 可以提取花茎的汁液来做成饮品。

26.temperate

（地区）温带的；( 气候 ) 温和的；克己的

In the temperate zone in spring,temperatures fluctuate greatly from day to day, but day length increases steadily by a predictable amount.

(IELTS5,T4,R3) 温带地区的春天每天的气温波动很大，但是昼长却以可以预测的速度稳步增加。

27.temporal

颞的；暂时的，临时的

But there was also activity in the temporal lobes at the side of the head and in many other brain areas.

(IELTS5,T2,R2) 在头部侧面的颞叶内和大脑的其他区域内都有活动。

28.temporary

临时的，暂时的，短时间的

All regular and temporary， full-timeor part-time employees are entitled to take their birthday off with pay.

(IELTS7,TA,R2) 所有正规的和临时的、全职和兼职员工都可以享受生日当天带薪休假的权利。

29.territory

领域，范围；领土，版图

Over the past 40 years, most have abandoned their nomadic ways and settled in the territory’s 28 isolated communities.

(IELTS6,T1,R3) 在过去的 40 多年中，因纽特人中大多数已经摆脱了游牧生活，定居在这里 28 个分散的社区。

30.therapy

疗法

There is also sleep reduction therapy,where the aim is to improve sleep quality by strictly regulating the time people go to bed and when they get up.

(IELTS5,TA,R3) 还有睡眠减少疗法，目的是通过严格地控制人们上床睡觉和起床的时间来提高睡眠质量。

31.thrive

旺盛，茁壮成长，兴旺，繁荣

Like grape vines, the trees thrive in poor soil, putting down deep roots in search of moisture and nutrients.

(IELTS12,T5,R1) 这些树木像葡萄藤一样偏爱贫瘠的土地，它们深深扎根获取水分和营养。

32.trail

小径，小路；痕迹，足迹；跟踪，追踪

Much attention has focused on erosion along major trails.

(IELTS5,T4,R1) 大部分主要道路的水土流失引起了人们的关注。

33.trait

特征，特点

It turns out that it’s not Florence’s nose that makes her a top drug dog, but her unswerving concentration, plus a few other essential traits.

(IELTS7,TA,R3) 结果表明，Florence成为的缉毒犬并不是靠鼻子，而是靠持久的专注和其他一些基本特征。

34.transform

改善；使……变形

Techniques like these have transformed Australia into arguably the world’s most successful sporting nation.

(IELTS6,T1,R1) 像这样的技术使澳大利亚成为世界上可以说是最成功的体育强国。

35.trek

长途艰苦的旅行；作长途艰辛的旅行，缓慢前进

This trek is being specifically organized to help education in the Semira region.

(IELTS7,T3,L2) 这次长途旅行是专门为促进Semira 地区的教育而组织的。

36.tremendous

极大的；极好的

The gases trapped inside the boiling rock expand suddenly, the lava glows with heat, it begins to froth, and it explodes with tremendous force.

(IELTS4,T3,R2) 被阻隔在沸腾的岩石中的气体突然膨胀，岩浆发热发光，开始冒泡，最后以巨大的能量爆炸。

37.trial

试验；审讯

What those early craftsmen had found by trial and error was that...

(IELTS7,T2,R1) 通过反复不断地摸索，早期手工艺者发现……

38.trunk

树干

The bark often splits where branches fork from the trunk, and gum accumulates there also. (IELTS10,TA,R3) 在树干的树枝分叉处，树皮容易开裂，树脂也容易在此聚积。

39.uncertainty

不确定，无把握

He wants to preserve an element of uncertainty in his music.

(IELTS12,T7,R3) 他想在自己的音乐中保存一些不确定的因素。

40.underlie

构成……的基础，作为……的原因

Unlike the multitude of elixirs being touted as the latest anti-aging cure, calorie restriction (CR) mimetics would alter fundamental processes that underlie aging.

(IELTS6,T3,R3) 和许多宣称是的抗衰老药不同，能量控制模型将改变衰老的基本过程。

41.underlying

根本的，潜在的

Our biggest challenge is to address the underlying causes of the agricultural system’s inability to ensure sufficient food for all.

(IELTS12,T6,R1) 我们的挑战是需要找出农业系统无法养活所有人的根本原因。

42.undertake

承担，从事，负责；承诺，允诺

Sounds like a big project—isn’t it too bigfor one country to undertake?

(IELTS7,T3,L3)听起来像个大项目——只靠一个国家来承担不会太沉重吗？

43.upgrade

提高某人 / 某事的等级或级别，提高……档次

Genetic analysis shows they constantly upgrade these fungi by developing new species. (IELTS7,T3,R1) 基因分析显示蚂蚁们通过培养新品种不断使这些菌类升级。

44.valid

有效的，正确的，有根据的

This is a hop-on hop-off service and tickets are valid for 24 hours.

(IELTS7,T2, L2) 这是随时可以上下车的服务，车票 24 小时内有效。

45.vanished

消失了的

It’s time to start returning vanished native animals to Britain.

(IELTS12,T8,R2) 是时候让那些消失了的本土动物重现英国了。

46.vegetation

植物，草木

Grass and other vegetation acts as a sponge which absorbs rainfall both in the plants and in the ground.

(IELTS6,TA,R3) 草和其他植被就像海绵一样将雨水吸入到植物中和土壤里。

47.venture

( 商业等的 ) 风险项目；冒险，敢于

Instead, communities in fragile environments must achieve greater control over tourism ventures in their regions.

(IELTS5,T4,R1) 相反，地处相对脆弱的环境中的社区必须对他们辖区范围内的旅游业有更多的控制权。

48.venue

 ( 聚集、审判、比赛 ) 地点

With only six performers it’s a small production, which suits the venue well.

(IELTS4,T3,L2) 它是只有 6 位演员的小型作品，用这个会场正合适。

49.vertical

垂直的，竖立的

Vertical farms would need to be efficient,cheap to construct and safe to operate.

(IELTS11,T1,R1)“垂直农场”需要满足高效率、建造便宜并且操作安全的条件。

50.vessel

船只；容器；血管

During 2000, commercial catches of Pacific salmon in Alaska exceeded 320,000 tons, with an ex-vessel value of over $US260 million.

(IELTS7,T4,R2) 2000 年，在阿拉斯加附近的太平洋共捕捉鲑鱼达到 32 万吨，出船价值超过 2.6 亿美元。