al point 要害；关键点
The doctor said that daily exercise is crucial
to his recovery.医生说每天锻炼对他的康复非常关键。
30 tragedy n. 悲剧
They are performing a classic tragedy at the
theatre.他们正在剧院里表演一出经典悲剧。
The car accident was a tragedy for the man.
这场车祸对这个男人来说是场灾难。
tragedy of the commons 公地悲剧
31 intellectual
/inte'lsktJuel/
n.知识分子；凭理智做事者
adj.:智力的；理智的；需用智力的；聪明的
intellectual property 知识产权；著作权
intellectual ability 智力能力
intellectual development 智力发展
intellectual capital 知识资本；智慧资本
intellectual work 脑力劳动
The intellectual girl is familiar with all the
math formulas.这个聪明的女孩熟知所有的数学公式。
Newton's intellectual mind had been inspired
by an apple.牛顿的智力思维受到了苹果的启发。
32 indeed adv 的确，当然，确实；
实际上；真正地
We all think that it is good indeed.
我们一致认为它确实不错。
I indeed lost sleep last night.
我昨晚的确失眠了。
My coworkers told me that I did a good job
indeed.我的同事告诉我真的干得不错！
A friend in need is a friend indeed.
患难中的朋友，才是真正的朋友。
33 demonstrate
/'demenstrert/
V （用实例、实验）论证；演示，展示；示
范；示威；表现，表达；说明；证明
demonstrate skills 展示技能
demonstrate integrity 展示完整性，显示完整
demonstrate product 演示产品；演示商品
This experiment demonstrates the chemical
principle we are discussing.
这个实验论证了我们讨论的化学原理。
The salesman demonstrates how the device
works on a watermelon.
推销员在演示怎么操作切瓜神器。
He is demonstrating how to cut a watermelon
with that device.
他在展示切瓜神器的使用方法。
The salesman demonstrates the product to the
customers.推销员在向顾客展示产品。
This experiment demonstrates the chemical
principle we were discussing.
这个实验论证了我们讨论的化学原理。
34 mathematics
/,maeθa'maetiks/
n. (=maths)数学
She is solving a mathematics problem.
她正在解答一道数学题。
My favorite subject in school was
mathematics. 在学校，我最喜欢的课是数学。
higher mathematics 高等数学
35 intervention n.介入；调停；干涉，干预
The man's intervention helped the couple
reconcile with each other.
通过他的调解，这对夫妻和好如初了。
The man's intervention stops the dominos.
这名男子的干预阻止了多米诺骨牌。
The man stops the dominos with a successful
intervention.
这个男人用一次成功的干预阻止了多米诺骨牌。
36 preschool
adj. 未满学龄的，就学前的，入学前的
n.幼儿园，育幼院
My kid's in preschool now, but he'll be in
kindergarten next year.
我的孩子现在上托儿所，但他明年就可以上幼儿园了。
37 thief n 小偷
A thief is stealing the girl's phone.
一个小偷正在偷这个女孩的手机。
38 obesity n 肥胖
The man suffers from obesity and lives an
unhealthy lifestyle.
那个患有肥胖症的男人过着一种不健康的生活。
39 deprivation
n. 剥夺；免职;匮乏；丧失；损失；免职
Many people suffer from the deprivation of
clean water and food.
许多人无法获得干净水源和食物。
The criminal suffered the deprivation of
political rights. 这个罪犯被剥夺了政治权利。
40 cognitive /'ka:gnetrv/
adj.认识能力的；认知的
This test will assess your cognitive skills and
ability to think quickly.
这个测试可以评估你的认知能力和反应能力。
41 passive
adj.被动的；消极的；顺从的
n.被动语态
Stop smoking! You are making your baby a
passive smoker!
别抽烟啦！你正在让你的孩子成为被动吸烟者！
Passive smoking causes great harm to children
and pregnant women.
被动吸烟会对儿童和孕妇造成很大的伤害。
He played a passive role in the marriage.
他在婚姻中扮演了一个被动的角色。
42 hazard
N 公害；危险；危险的事物；机会
vt.使冒险，冒险做
In big cities, there are always plenty of road
hazards to watch out for.
在大城市里，我们总是有很多道路危险要注意。
potential hazards 潜在危害
hidden hazard 隐患
at hazard 在危急中；随便地
on the hazard 在危险之中；受到威胁
fire hazard 火灾
43 urgently adv.紧急地，迫切地
Food and clothes are urgently needed for the
victims of this earthquake.
这次地震的灾民急需食物和衣服。
44 resilience n.恢复力；弹力；顺应力,韧劲
The little turtle showed its resilience by
overcoming the difficulties and reaching the
ocean.
小海龟展现出它的韧性，克服重重困难并到达大
海。
45 cultivate v.耕作，种植，栽培；培养，发展
The farmer is using a machine to cultivate the
land.这个农民正在用机器开垦荒地。
I'll need to cultivate my fields well if I want
my crops to grow.
如果我想让我的作物生长，我就得把我的田地耕作好。
Parents should help cultivate the love of
reading in their child.
父母应当协助培养孩子对阅读的热爱。
cultivate habits 培养习惯
cultivate with
用……耕种；与……建立友谊
cultivate independence 培养独立性
cultivate talents 培育人才
46 scarce
adj.缺乏的，不足的；稀少的，罕见的
adv.仅仅，几乎不
Oil is becoming increasingly scarce on Earth.
地球上的石油已经变得越来越匮乏了。
Oil is becoming increasingly scarce resources
on Earth.石油正成为地球上日益稀缺的资源。
Water is scarce in this area.
这个地区十分缺水。
scarce resources 稀缺资源，稀有资源
scarce goods 稀缺商品，紧缺商品
47 energy