(共29张PPT)
版本:新外研
单元:选择性必修二 Unit 4 (Starting out — Understanding ideas)
单
词
课
堂
1. boundary bound (限制范围、界限) + -ary (名词后缀);词块:national boundaries
2. statistic 和 state (国家) 同源,来自拉丁语 statisticus (有关国家事务的),被一名德国政治学家用来指“国家事务的统计数据”,后来演变为指一般的“统计数据”。
3. assist as- (to 到) + sist (to stand ) → 站到某人身边 → 帮助;协助
assist 是正式用语,对应 help
同根词:resist;派生词:assistance, assistant
词块:assist (sb) in / with sth, assist sb in doing sth
4. tackle 近义词:deal with
5. vital vit (life 生命) + -al (……的) → 生命攸关的 → 至关重要的
同根词:survive, vitamin
词块:it is vital (for sb) to do sth, be vital to (doing) sth
本单元词汇梳理
6. combat com- (with 和……一起) + bat (to beat 打) → 与……战斗
→ 防止; 抑制
同根词:debate, battle
7. relieve re- (表示强调) + liev (to lighten 减轻) + -e → 减轻;缓解
熟词生义:给 (某人) 换班
派生词:relief, relieved
8. specialist special (专门的) + -ist (从事……的人)
近义词:expert
9. infectious & disinfect infectious:infect (v 传染、感染) + -ous (形容词后缀)
disinfect:dis- (不、非) + infect (v 传染、感染) → 防止传染、感染 → 为……消毒;给……杀菌
词族:infect, infection, infectious, infected, disinfect
10. outbreak 合成词:out + break
短语动词:break out
11. devotion devote (v 献身于……) + -ion (名词后缀)
词块:devotion to
词族:devote, devoted, devotion
12. miracle 意为“奇迹”时为非正式用语 (对应 wonder)
词块:work / perform a miracle
13. twin 词源同 (two 二),引申词义“成双的、成对的”,后用于指“双胞胎”
pensate 词块:compensate for (近义词:make up for)
15. collaborate col- (with 和……一起) + labor (to work 工作) → 和……一起工作 → 合作;协作
16. mankind 合成词:man + kind → 人的种类 → 人类
assist
重难点词精讲
vital
辨析义
英语释义
常用复数的名词
assist
If parents have children ____________(帮助)housework, the children will feel needed.
help with
高考链接
assist with
assist是正式用语
assist vt & vi[正式用语]帮助;协助:
We’re looking for people who would be willing to assist in / with the group’s work.
I swam to Dad quickly and assisted him in climbing / to climb onto the boat.
构词:as- (to 到) + sist (to stand) → 站到某人身边 → 帮助;协助
assist, help, aid
析
辨
三者都有“帮助”之意,但侧重点有所不同。
assist是正式用语,侧重“协助”“助理”,受助者自己要做大部分工作。
A nurse assisted the surgeon during the operation.
help指给予各方面帮助。
I will help you (to) finish the housework.
aid指用金钱、物资等“援助”他人,强调帮助受助者脱离困难。
She is always aiding the student with money.
【温故】必修三 Unit 2
assistance n [U] 帮助;协助;援助:
medical / technical assistance
give / offer / provide assistance to sb
With the assistance of his brother, he sold one painting.
Can we be of assistance (= can we help you) in any way
【词汇拓展】assistant
■ n [C] 助手;副手;助理;店员:
a teaching / shop assistant
■ adj 助理的;辅助的 having a rank below a senior person and helping them in their work:
an assistant manager
vital
高考链接
翻译句子。
阅读是我生活中极其重要的一部分。(2019 天津)
________________________________________
Reading is a very important part of my life.
an essential part
a vital part
vital R2 adj 至关重要的 very important or necessary (essential):
of vital importance (= very important)
Consideration for other people is vital to all of us.
What’s worse, some drivers do not think it vital to obey traffic rules. 江苏书面表达改
Reading is a vital part of my life. 2019 天津
vital
构词:vit (life 生命) + -al (……的) → 生命攸关的 → 至关重要的
词根 前缀 / 后缀 单词 派生词
vit (life) -al (……的) vital adj 生命的;至关重要的 vitality n 活力;生气
vitalize v 赋予生命;使有生机
devitalize v 夺去……的生命 / 活力
revitalize v 使恢复元气;使复活
-amina(e) (物质) vitamin(e) n 维生素 /
vit词根
常用复数形式的名词
在空白处填入括号内单词的正确形式。
1. __________ (statistic) show that people who failed at school didn’t end up failing in life.
2. If you like to stay by the river, River Festival will offer you a day of fun on the river bank, followed by __________ (firework) in the evening.
3. Dr Green, _______________ (congratulation) on the success of your new book.
4. When he was finished, he climbed to the top of the __________ (stair) and reached to turn off the lights.
Statistics
congratulations
fireworks
stairs
5. When planning Encyclopedia Britannica, I had to create a table of __________ (content) based on the topics of its articles.
6. On his desk is a mass of books and __________ (paper).
7. The government has taken measures to bring down the high prices of daily __________ (good) to keep the market stable.
8. Police officers in the UK do not usually carry __________ (arm).
contents
papers
goods
arms
在英语中,有些名词习惯以复数形式出现,不用单数形式,此时,其意义发生了变化。
本单元金句汇总
1. I swam to Dad quickly and assisted him in climbing / to climb onto the boat.
2. With the assistance of his brother, he sold one painting.
3. What’s worse, some drivers do not think it vital to obey traffic rules.
随堂检测
assist
在空白处填入1个适当的单词或括号内单词的正确形式。
1. He assists her ___________ cooking matters.(2018 全国)
2. He assisted the old man ___________ (fill) in the forms.
3. Two men are assisting the police ___________ their enquiries(调查).
4. You will be employed to assist __________ the development of new equipment.
5. The doctor shares his phone number with the patients in case they need medical __________ (assist).(2019 江苏)
in
to fill
in / with
in / with
assistance
vital
翻译下列句子。
1. 你的支持对我的计划能否成功关系重大。
Your support ________________ the success of my plan.
2. 氧是生命所必不可少的。
_______________________________
3. 重要的是孩子们要受到良好的教育。
________________ children receive good education.
4. 在这份工作中有幽默感是至关重要的。
________________ a sense of humor in this job.
5. 运气对朱迪的生存起着至关重要的作用。
Luck ________________ in Judy’s survival.
is vital for
Oxygen is vital to life.
It’s vital to have
It is vital that
plays a vital role
随堂检测
根据句意写出画线部分的汉语释义。
1. She cast a welcoming smile in his direction. _________
2. The setting sun cast an orange glow over the mountains.
__________
3. This latest evidence casts serious doubt on his version of events.
__________
4. Some way from them, the fisherman cast his line. __________
5. The play is being cast in both the US and Britain. __________
向……投以微笑
投射(光)
使人怀疑
分配 / 选派角色
投 / 抛(钓线)
cast
mount
根据句意写出画线部分的汉语释义。
1. He mounted the horse and rode off. __________
2. His debts continued to mount up. __________
3. He mounted the platform and addressed the crowd. __________
4. Mount Everest is the highest mount in the world. __________
5. We mounted an exhibition of recent books. __________
6. Social problems in modern society are mounting. __________
骑上
逐渐增加
登上
安排 / 组织开展
山峰
逐渐增加
一、根据句意写出画线词的汉语释义。
1. The circle is divided into sections, and each section represents a fraction of the data. __________
2. 30 divided by 6 is 5. __________
3. Google Video is a division of Google and is part of the same corporate entity. __________
4. In groups discuss what the possible work division was between men and women. __________
5. The narrowness of the government’s victory reflected deep division within the Party. __________
除
division
分割 / 划分
部门
分工 / 分配
分歧
二、翻译下列句子。
1. 这笔钱你们六个人分。
_____________________________________________
2. The football team moved up to the first division after winning all its games.
_____________________________________________
Divide the money among the six of you.
赢得所有比赛后,这个足球队荣升甲级队。
以足球运动为中心的地区性足球俱乐部的比赛,称为足球联赛。足球超级联赛地区最高级别的职业足球联赛,甲级联赛是第二级别的足球职业联赛,乙级联赛是第三级别的足球联赛。
根据所给汉语及提示,用适当的词块完成下列句子。
1. ____________________(可以自由选择)is one reason more people like to eat alone.
2. ____________________(言论自由)is a basic human right.
3. You are ____________________(自由地)to use the laboratory.
freedom & liberty
Freedom of speech
Freedom to choose
at liberty
二、在空白处填入括号内单词的正确形式。
1. Most ____________ (employ) do care about the personal appearances of their ____________ (employ), because those people represent the companies to their customers.
2. It was from only a few supplies that she had bought in the village that the ____________ (host) cooked such a nice dinner.
3. The ____________ (assist) noticed my nervousness and placed her warm hand over my ice-cold one.
employers
employees
hostess
assistant
正式用语与非正式用语
Informal / Neutral(中性) Formal
帮助我的同学 __________ my classmate __________ my classmate
有自由做某事 be free to do sth be ______________ to do sth
无法忍受痛苦 can’t bear the pain can’t __________ the pain
爬上楼梯 go up the stairs __________ the stairs
创造奇迹 do / perform __________ do / work wonders
help
assist
at liberty
endure
mount
miracles
学习词汇时要了解它使用的文体和场景,避免日常交流和书面表达时因为用词不恰当、不得体导致交际失败。
行为抽象名词
v devote divide assist arrive recover relieve
n _______ _______ _______ _______ _______ _______
A. 写出所给单词的名词形式。
B. 用 A 中抽象名词的词块完成下列句子,体会英汉表达差异。
1. What’s the problem Can I _________________(帮忙)
2. _________________ (一到达), Jimmy found a long line of applicants waiting to be interviewed.
3. He has now _________________(痊愈)from his suffering.
4. Seeing their daughter and dog coming back, the parents burst into _________________(宽慰的泪水).
5. She was responsible for _________________(将这本小说改编)into a stage play.
devotion
division
assistance
arrival
recovery
relief
be of any assistance
Upon arrival
made a full recovery
tears of relief
the adaptation of the novel
由动词派生而来的抽象名词叫做行为抽象名词;行为抽象名词翻译成汉语时,可以通过其动词的释义来帮助理解,常译成汉语的动词。
本单元金句汇总
1. He cast a look at the woman.
2. Nothing is particularly hard if you divide it into small jobs.
3. Division of opinion among themselves contributed to their defeat.
4. You’re at liberty to say what you like.
谢
谢
观
赏