(共24张PPT)
单
词
课
堂
A word is a microcosm of human consciousness. — Vygotsky
版本:新北师
单元:选择性必修三 Unit 7 (LESSON 2)
本单元词汇梳理
1. trend 词源:原指河流或海湾的拐弯,后引申词义趋势、潮流
词块:a trend toward(s) sth, follow the trend
2. financial finance (n 财务 / 金融) + -al
词块:financial crisis
3. logical logic (n 逻辑) + -al (形容词后缀)
4. comprehension com- (completely 完全地) + prehen (to seize 抓住) +
-sion (名词后缀) → 完全抓住(意思) → 理解
词块:reading comprehension, beyond comprehension
5. bio-technology bio- (生物) + technology (n 技术)
6. guarantee 一词多义,基本义“保证”
名词动词化:保证
词块:a guarantee of sth, guarantee that, guarantee to do sth
7. AI artificial intelligence的缩写形式
8. motivated mot (to move 移动) + -ive (名词后缀) + -ate (动词后缀) +
-ed → 使移动的、使有动力的 → 积极的;主动的
词族:motive, motivate, motivated, motivation
重难点词精讲
motivate
一词多义
英语释义
词根词缀
trend
一词多义
guarantee
一词多义
trend
不要随波逐流,要跟随自己的内心。
trend
n [C]
趋向;趋势:
the general trend of history
There has been a recent trend in the food service
industry toward lower fat content and less salt.
2017 全国
潮流:
follow the latest world trend
词源解读:原指河流或海湾的拐弯,后引申词义趋势、潮流。
时尚的“趋势”
guarantee
看图猜词:
打开购物网站时,琳琅满目而分类细致的商品就会呈现在我们面前。购物时,是否注意到了商品上的这些标注呢?它们是什么意思呢?
guarantee和warrant都是保证的意思。
warrant侧重保证退换;
guarantee侧重对产品质量的保证。
词源解读
英语guarantee来源于西班牙语garante。这个词是从日耳曼语warrant吸收而来。在吸收的过程中,w变成了g。因此,两个词本质上是同一个词。
n [C]
保证 a firm promise that sth will be done or that sth will happen:
give a guarantee of good behavior
Wealth is no guarantee of happiness.
保修单;质量保证书:
They offer a two-year guarantee on all their electrical goods.
guarantee
vt
保证;确保;担保:
Talent alone isn’t enough to guarantee success. 外研新选必① - 2
guarantee + (that) 从句:
Consistent, hard work will guarantee that you will become good at whatever it is. 2013 广东改
guarantee to do sth:
We guarantee to behave ourselves tomorrow.
提供保修单:
If you have the watch cleaned here, we can guarantee it for an additional three months. 2009 天津
guarantee 语义网络图
做某事或使某事发生的“保证”
产品质量的“保证”
保证
保修单;质量保证书
guarantee
保证
(基本义)
保证;确保;担保
提供保修单
n
v
motivate
同义异构:encourage / inspire
motivate
vt 使有动力;激发;激励:
Researchers have identified several factors that motivate people to get involved in voluntary work. 2015 江苏改
While some people are motivated by a need for success, others are motivated by a fear of failure. 2016 江苏
构词:mot (to move 移动) + -ive (名词后缀) + -ate (动词后缀:使) → 使移动、有动机 → 激励
motivated adj 积极的;主动的:
After every run I feel fitter, happier and more motivated to keep progressing. 2011 湖南改
【温故】
unmotivated adj 缺乏动机的;不感兴趣的(选必一 Unit 1)
motivation n(选必一 Unit 1)
[U] 积极性;动力 the enthusiasm for doing sth:
These methods can help improve / increase students’ motivation and interest.
[C] 动机;诱因 the need or reason for doing sth:
Escape can be a strong motivation for travel.
词根 前缀 / 后缀 单词 派生词
mot pro- (向前 forward) promote v 促进;晋升 promotion n 促进;晋升
re- (向后、往回 back) remote adj 遥远的
-ive motive n 动机 motivate v 激励
motivated adj 积极的;主动的
motivation n 积极性;动机
-or motor n 发动机;马达
-ion motion n 运动;动
e- (外 out); -ion emotion n 感情;情绪 emotional adj 情绪 (上)的;情感 (上) 的
mot词根
从上表中可以看出,词根mot意为“动 / 移动 (move)”,由该词根构成的词大多含有此义。
react
构词:re- (back 回应) + act (行动) → 作出行动回应 → (作出) 反应
react 意为“对……作出反应”、“产生不良反应”时,同介词 to 搭配;
意为“起(化学反应)”时,同介词 with 搭配。
react vi
(对……)作出反应 (respond):
How did the students react to the monitor’s suggestion
产生不良反应 to become ill after eating, breathing, etc. a particular substance:
Some people react badly to certain food.
起(化学)反应:
It shows us how iron reacts with air and with water.
react 语义网络图
(对……)作出反应
react
(基本义)
对食物等有不良“反应”
物质等发生化学 “反应”
起(化学)反应
产生不良反应
reaction n [U] & [C] 反应;作用:
【温故】(必修三 Unit 7)
sb’s first / immediate
reaction
the public reaction to the news
the reaction of metals with oxygen
act 同族词
active
action
actively
interact
react
reaction
activist
activity
actress
actor
act
男演员
女演员
积极的;
活跃的
积极地
相互交流;相互影响
行动;行为
(对……)作出反应
反应;作用
积极分子
活动
interaction
交流;互动;相互作用
credit card在我们的生活中处处可见,你知道TA的故事来源吗?
credit
credit
credit
据说第一张信用卡 (credit card) 是由就餐者俱乐部 (Diners Club)发行的,这张卡的发明者是该俱乐部的创始人——弗兰克 麦克纳马拉 (Frank McNamara)。有一次弗兰克请客吃饭,却偏偏忘了带钱夹,付账时尴尬万分。通达的老板解围说:“我知道你信誉 (credit) 一向非常好,下次来一起付吧。”
这起意外使弗兰克得到了启发,他和朋友施耐德 (Ralph Schneider)合作,在纽约创办了“就餐者俱乐部”,为200名会员发放一张证明身份和支付能力的卡片,他们凭卡片可以在纽约27家饭店用餐而不需带现金 (cash) ,到时只要和就餐者俱乐部一次清账就可以了。信用卡就是一种信贷 (credit) 。
[U] 信用;信誉:
gain / lose credit
It is important to pay your electricity bill on time, as late payments may affect your credit. 2016 浙江
[U] 赊账;信贷:
It doesn’t matter whether you pay in cash or by credit card in this store. 2012 山东改
Most new cars are bought on credit.
credit R3 n
构词:cred(to believe / trust 相信、信任)+ -it(表示名词)→ 信任
[C] & [U] 存款额:
I’ll put a 300-dollar credit on your account. 2010 北京
[U] 赞扬;功劳 praise or approval that you give to
sb for sth they have done well:
I can’t take all the credit for the show’s success — it was a team effort.
We don’t mind who gets the credit as long as we don’t get the blame.译林新必修③ – 4
[C] 学分:
The teacher made it clear that our credits would be
hard-earned. 2018 全国
to sb’s credit 为某人增光;值得赞扬:
To their credit the four countries do work together in some areas, but they still have very different institutions.
同义异构:praise
谢
谢
观
赏