资源简介

(共42张PPT)
Unit 4　
Scientists who changed the world
Section 5　Extended reading & Project
The Value of Science
1．Understand the text “The Value of Science” by skimming & scanning;
2．Master the usage of some important words, phrases and sentence patterns.
Ⅰ Choose the best answers to the following questions according to the text.
1．What’s the author’s purpose in writing the first paragraph
A．To lead in the topic.
B．To introduce his experience.
C．To indicate what he did brought disaster.
D．To warn readers of the possible danger of science.
【答案】 A
Activity 1
Reading comprehension
阅读理解
2．Why did the writer ask himself, “Is there some evil involved in science？”
A．To comfort his heart and others.
B．To show his concern and worry.
C．To respect related scientists.
D．To attempt to flee from science.
【答案】 B
3．Which of the following is NOT the value of science
A．Scientific knowledge enables us to do and make all kinds of things.
B．Science can provide us with intellectual enjoyment.
C．Scientists take it for granted that they are ignorant.
D．The scientist has a lot of experience with ignorance and doubt and uncertainty, which is of very great importance.
【答案】 C
4．What is the author’s attitude towards science
A．Critical.　　　　 B．Positive.　　　　
C．Doubtful.　　　　 D．Cautious.
【答案】 D
5．Why must a scientist recognize his ignorance
A．To doubt.　　　　 B．To be sure.　　　　
C．To have freedom.　　　　 D．To fear.
【答案】 A
Ⅱ Answer the following questions according to the text.
1．What was in his mind when the writer was young
________________________________________________________________________
2．Why did the writer think long and hard about the question “what is the value of the science”？
______________________________________________________
Science would make good things for everybody. It was obviously useful; it was good.
Because he saw science he had loved could do some terrible things.
Activity 2
Core vocabulary breakthrough
核心词汇突破
Ⅰ 词条讲解
1．involve vt. 包含；牵涉，影响；(使)参加
【原句】 I had to ask myself, “Is there some evil involved in science？” (page 53, lines 4–5) 我不得不问自己：“科学里是不是有罪恶？”
【拓展】
involve vt.→involved adj. 复杂难解的；有关联的
involve sb/oneself in (doing) sth 使某人/某人自己参与(做)某事
involve doing sth 包括做某事；需要做某事
be/get involved in 参与……，与……有关；专心于……
the people involved 所涉及的人
【即学即练】语法填空
①Greetings in Asian countries do not involve ___________(touch) the other person, but they always involve the hands.
②There was a serious incident ____________(involve) a group of youths.
③She really didn’t want to ______________(involve) in the whole family thing.
touching
involving
be involved
2．credit n. 赞扬，认可；信用；[生义]学分 vt. 存入金额；把……归于
【原句】Of course, if we make good things, it is not only to the credit of science … (page 53, lines 11–12) 当然，如果我们做了善事，不仅归功于科学，……
【拓展】
give sb credit for … 因为……而称赞某人
do sb/sth credit 使某人/某物值得赞扬
to one’s credit＝to the credit of sb 使某人值得赞扬
buy sth on credit 赊购某物
credit card 信用卡
get/receive/take credit for (doing) sth 因(做)……而获得荣誉
【即学即练】完成句子
①只要把事情做好，我们不在乎谁受表扬。
As long as we get things done, we don’t mind__________________．
②让我们为项目的成功赞扬他。
Let’s __________________ for the success of the project.
③你必须通过考试才能获得那门课程的学分。
You must pass the examination to_______________________．
who gets the credit
give him credit
get credits for the course
3．apply vt. & vi. 应用；申请；涂；有关
【原句】Scientific knowledge is an enabling power to do either good or bad—but it does not carry instructions on how to apply it. (page 53, lines 13–14) 科学知识是一种能够带来善或恶的力量——但它并不包含关于如何应用知识的指导。
【拓展】
apply vt. & vi.→application n. 应用；申请(表)；涂抹；勤奋，努力；应用程序
→applicant n. 申请人(尤指求职、进高等学校等)
apply to sb/sth for 向……申请……
apply sth to 把某物应用于……
apply oneself/one’s mind to (doing) sth 某人致力于/专心于(做)某事
【即学即练】完成句子
①交通规则适用于每一位行人和司机。
The traffic rules ___________ every pedestrian and driver.
②这些观点往往很难付诸实施。
These ideas_________________________________．
apply to
are often difficult to apply in practice
4．ignorance n. 无知
【原句】The scientist has a lot of experience with ignorance and doubt and uncertainty, and this experience is of very great importance. (page 54, lines 25–27) 科学家经常会经历无知、疑惑和不确定，而这种经历是十分重要的。
【拓展】
ignore vt. 忽视；不予理睬→ignorant adj. 无知的，愚昧的
→ignorance n.
ignore the fact that … 忽视事实
be ignorant of/about … 对……不了解
【即学即练】完成句子
①我们不能不考虑他们的劝告。
We cannot afford to______________________．
②那时我对别处发生的事情一无所知。
At that time I _________________________________________．
ignore their advice
was ignorant of/about events going on elsewhere
5．permit vt. & vi. 允许，准许，许可；使有可能 n. 许可证
【原句】Permit us to question—to doubt—to not be sure. (page 54, lines 35–36) 允许我们去提问——怀疑——不确定。
【拓展】
permit vt. & vi. →permission n. 准许，许可，批准；许可证
permit sb to do sth 允许某人做某事
permit (one’s) doing sth 允许(某人)做某事
weather/time permitting 天气/时间允许的话(独立主格结构)
ask (for) permission 请求许可
with/without (one’s) permission 得到/未经(某人的)允许
【即学即练】语法填空
①No one is ____________(permit) to go into the building at present.
②Time _____________(permit), we hope to visit the cathedral(教堂).
③In our school, no student can go out of the classroom without _____________(permit).
permitted
permitting
permission
6．responsibility n. 责任，负责；职责，义务
【原句】 It is our responsibility as scientists, knowing the great progress that is the fruit of freedom of thought, to declare the value of this freedom … (page 54, lines 37–38) 作为科学家，我们明白巨大进步源于思想自由，因此，我们有责任声明这一自由的价值……
【拓展】
responsible adj. 负责的；可靠的→responsibility n.
→irresponsible adj. 不负责任的
a sense of responsibility 责任感
take/have/bear/shoulder responsibility for …＝be responsible for … 对……负责
take on/assume responsibility 承担责任
It’s one’s responsibility to do sth 某人有责任做某事
【即学即练】完成句子
①这些儿童活动帮助培养孩子的责任感。
These childhood activities help a child _______________________．
②没人愿意承担这个问题的责任。
No one wants to ___________________ the problem.
develop a sense of responsibility
take responsibility for
Ⅱ 短语讲解
1．let sb down 使某人失望
【原句】 Never concerned that the answer may let us down … (page 54, lines 20–21) 我们从不担心答案可能会令人失望，……
【拓展】
let out 发出(叫声等)；使(水、空气等)通过；加宽(衣服)
【即学即练】完成句子
①当她看到他，她发出了惊恐的叫声。
When she saw him, she ______________________．
②史密斯先生的判断很少令我失望。
Mr Smith’s judgement seldom _______________．
let out a cry of horror
lets me down
2．put forward 提出，提议，建议
【原句】 He put forward the theory of evolution by natural selection and published On the Origin of Species in 1859．(page 55) 他(查尔斯·达尔文)提出了自然选择进化论，并于1859年出版了《物种起源》。
【拓展】
put aside 忽视，不理睬；储存
put away将……收起；把……放回原处；积蓄；攒钱
put down 放下；写下；镇压；下定金
put in 安装；打断，插话；投入(时间、心思等)
put off 推迟；使某人失去兴趣；使分神；取消；让……下车
put on 戴上；涂，擦；播放(激光唱片、磁带等)；增加(体重)；举办，上演，展出；装作，假装；专门提供
put out 扑灭；生产，制造；出版，广播，公布
put together 组装；组建；合计，总和
put up 提出(意见等)；留某人住在家中；推荐；提名；建造；搭建；竖立；张贴
put up with … 容忍，忍受
【即学即练】语境辨义
①Firefighters soon put the fire out. _______
②She often puts in twelve hours’ work a day.
___________________
③She looks like she’s put on weight. _______
④They decided to put aside their differences._______________
⑤She has a few thousand dollars put away for her retirement.
_____________
⑥The meeting’s on the 22nd. Put it down in your diary. _______
扑灭
投入(时间、心思等)
增加
忽视，不考虑
积蓄，攒钱
写下
1．With more knowledge comes a deeper, more wonderful mystery, inspiring one to look deeper still. (page 54, lines 19–20) 随着知识的增加而来的是一个更深层次、更奇妙的奥秘，激励人们继续深入探索。
【句式分析】something comes with sth的倒装结构，with介词提前，句子使用完全倒装，真正的主语是后面的a deeper, more wonderful mystery。inspiring …为现在分词短语做状语。
Activity 3
Analysis and imitation of complex sentences
长难句分析和仿写
【即学即练】仿写
接入互联网带来了一些实实在在改变我们生活的好处。(access)
________________________________________________________
With access to the Internet come some truly life–changing advantages.
2．Never concerned that the answer may let us down, with pleasure and confidence we turn over each new stone to find unimagined strangeness leading on to more wonderful questions and mysteries. (page 54, lines 20–22) 我们从不担心答案可能会令人失望，总是快乐而自信地开始每一次新探索，发现一些意想不到、稀奇古怪的东西，随之而来的是更加奇妙的问题和奥秘。
【句式分析】 concerned that … 为过去分词做原因状语，相当于Because we are never concerned that …。句子的主干是we turn over each new stone，现在分词短语leading on to more wonderful questions and mysteries做后置定语，修饰其前面的名词 unimagined strangeness。
【即学即练】语法填空/仿写
①____________(convince) that we were doing the right thing, we all devoted ourselves to it.
②受到这位年轻人的鼓励，他们决定去探索这个森林。
___________________________________________________
Convinced
Inspired by the young man, they decided to explore the forest.
3．Now, we scientists take it for granted that it is perfectly possible to live and not know. (page 54, lines 30–31) 现在，我们科学家理所当然地认为，人类生而有所不知是完全有可能的。
【句式分析】take it for granted that …句型，表示“认为……是理所当然的”，it是形式宾语，真正的宾语是that后面引导的从句。
【即学即练】仿写
他还想当然地认为我会听从他的建议。
________________________________________________
He just took it for granted that I would follow his advice.
4．It is our responsibility as scientists, knowing the great progress that is the fruit of freedom of thought, to declare the value of this freedom … (page 54, lines 37–38) 作为科学家，我们明白巨大进步源于思想自由，因此，我们有责任声明这一自由的价值……
【句式分析】it is one’s responsibility to do sth句型，表示“某人有责任做某事”； knowing … 为现在分词做原因状语。
【即学即练】改写/仿写
①Franklin knew it was too dangerous to hold the wet line, so he held a silk ribbon tied to the end of it.
＝______________________________________________________ ___________________________
②他们有责任确保这些规则得到执行。
__________________________________________________
Knowing it was too dangerous to hold the wet line, Franklin held a silk ribbon tied to the end of it.
It is their responsibility to ensure that the rules are carried out.
When I was younger, I thought science would make good things 1．______ everybody. However, when I worked on the atomic bomb during the war, I found it represented the 2．______________(destruct) of people and it put our future at risk.
What is the value of science The first value is that 3．____________ (science) knowledge enables us to do and make all kinds of things.
Activity 4
Summary
课文概要
for
destruction
scientific
This kind of knowledge is 4．_____ enabling power to do either good or bad—but it does not carry instructions on 5．______ to apply it. Such power 6．______(have) obvious value. Another value of science is the intellectual enjoyment. With pleasure and confidence we turn over each new stone to find unimagined strangeness leading on to more wonderful questions and mysteries. Through effort, we have been led to imagine all 7．________(sort) of things more fantastic than poets and dreamers of the past ever could. Let’s turn to a third value. The scientist has a lot of experience with 8．____________(ignore) and doubt and uncertainty, and this experience is of very great importance.
an
how
has
sorts
ignorance
Now, scientists take 9．___ for granted that it is perfectly possible to live and not know. But our freedom to doubt was born out of a deep and strong struggle against authority in the early days of science. 10．_______ (know) the great progress that is the fruit of freedom of thought, scientists have responsibility to declare the value of this freedom and to demand this freedom as our duty to all coming generations.
it
Knowing
1．Try to remember these useful expressions learnt in this class.
2．Finish the exercises on pages 44–48 of Exercise book.

展开更多......

收起↑