高中外研版 (2019)Unit 3 The world of science试讲课课件ppt

这是一份高中外研版 (2019)Unit 3 The world of science试讲课课件ppt，共39页。PPT课件主要包含了Who is he等内容，欢迎下载使用。

Benjamin Franklin
What did he d?
He helped draft the Declaratin f Independence and the US Cnstitutin（宪法）.
apart frm 除了...
be knwn as 作为...而文明
Funding Fathers f the US Declaratin f Independence leading authr, printer, publisher, diplmat, scientist and inventr.
He is undunbtedly imprtant t Americans.
What made him famus?
Read Learning t learn and answer the questins.
What is the feature f an essay title?What d yu usually knw frm an essay title?
fcus n 集中注意力于...
FRANKLIN’S EXPERIMENT: Hw Much Is True?
Hw d yu describe this picture?
What is the weather like?What is the taller man ding?What are the bjects circled?
Accrding t the title, what d yu think this passage is mainly abut?Accrding t the title, d yu think Franklin’s experiment is true r nt?
Read the title and discuss the questins.
Hw Much Is True?
What is the text mainly abut?
A. The stry f Franklin's experiment is true r nt.B. The aim f Franklin's experiment.C. The prcedure f Franklin's experiment.D. The effect f Franklin's experiment.
1. What did Franklin’s experiment aim t prve?
It aimed t prve that lightning was a frm f electricity.
2. Number the statements .
Franklin's spirit f scientific explratin is still cnsidered an inspiratin.Peple are amazed at and inspired by Franklin's experiment.Scientists questin what really happened in Franklin's experiment.
Peple are amazed at and inspired by Franklin’s experiment.
Scientists questin what really happened in Franklin’s experiment.
Franklin’s spirit f scientific explratin is still cnsidered an inspiratin.
Para. 1Para. 2Para. 3Para. 4Para. 5Para. 6
Read the passage and match the main ideas with the paragraphs.
A. The effect f the experimentB. The intrductin t Franklin's famus experimentC. CnclusinD. Dubt abut Franklin’s experiment E. Hw the experiment is carried utF. Dubt abut ther accepted ideas
1.Benjamin Franklin’s famus experiment with lightning has intrduced generatins f children t science.Hwever, new research suggests that the stry may be fictin instead f fact.
2. The well-knwn stry is that the American Funding Father and scientist flew a kite during a strm in 1752. At that time, there was much interest in electricity. Peple wanted t knw if lightning was really prduced by electricity r smething else. Franklin was ne f them. He raised the kite with a piece f string tied t it.
1.fly a kite 放风筝2.At that time 在那时3.be interested in... 对...感兴趣 ... 把...系在...上
A metal key was attached t the string. A flash f lightning hit the kite, and electricity was cnducted thrugh the string t the key. Franklin then tuched the key with his finger and gt an electric shck. This, he said, prved that lightning was a frm f electricity.
1.be attached t 接近 flash f lightning 一道闪电3.a frm f ... 一种形式
What is the secnd paragraph mainly abut?
A．Franklin's pinin abut science.B．The purpse and prcess f Franklin's experiment.C．Peple's different pinins n lightning.D．The rle f the metal key.
Read paragraph 2 carefully and fill in the frm.
if lightning was prduced by electricity
a kite, a metal key, a flash f lightning
lightning was a frm f electricity
3 Fr many years, schls have taught the stry f Franklin’s lightning experiment. Mre than ne generatin f schlchildren has been amazed by his bravery and his scientific apprach t lking fr the truth. Franklin, alng with many ther scientists, has inspired us and taught us that scientific experiments are imprtant in rder t establish the truth and t cntribute twards later scientific discveries and inventins.
1.be amazed by ...对...吃惊2.alng with 伴随 sb t d sth 鼓励某人做 rder t 为了...
What’s peple’s attitude twards Franklin’s experiment ?
A．Dubtful.B．Believable.C．Indifferent.D．Negative.
4. Hwever, neither the stry nr the details f the experiment are entirely true. Althugh it has been prved that Franklin’s experiment tk place, mre than ne scientist has questined what really happened. The detail abut the string and the key is true. But scientists all agree that if Franklin had actually tuched the key, he wuld certainly have died frm the electric shck.
1.take place 发生2.die frm...死于...
Accrding t the text, which statement is true ?
A．Scientists think actually Franklin didn’t tuch the key at all.B．Franklin died frm the experiment.C．All the scientists believe the stry f the experiment.D．Only ne scientist has sme dubt abut the stry.
5 Scientists ften questin accepted ideas because they want t establish the facts. Sme have even questined the stry abut the apple that fell n Newtn’s head and led him t cme up with his thery f gravity. In fact, mre than ne accunt suggests that while Newtn was certainly inspired by a falling apple, there is n prf that it hit him n the head.
1.fall n 落到2.cme up with3.there is n prf that 毫无证据...
Why d scientists ften questin accepted ideas ?
A．Because they think they are cleverer than thers.B．Because accepted ideas are ften wrng.C．Because they nly believe in themselves.D．Because they nly want t establish the facts.
6 Admittedly, fictin is ften mre interesting than the truth. Peple have been mre inspired by Franklin’s spirit f scientific explratin than by the facts themselves. But in science, facts shuld be prved by experiments and research, and we shuld nt always believe everything we read r hear – even if it is a great stry.
1.Admittedly 诚然;应当承认 2.be prved by被证实... 3.even if 即使
What’s the purpse f the passage ?
A．Tell us a funny stry.B．Tell us a stry f a great scientist.C．Tell us that we shuldn’t always believe everything we read r hear.D．Tell us lightning is really prduced by electricity.
In this passage, what did Franklin’s experiment bring t schlchildren?
para 1：The experiment has intrduced generatins f children t science.para 3：Mre than ne generatin f schlchildren has been amazed by his bravery and his scientific apprach t lking fr the truth.para 5：Peple have been inspired by Franklin’s spirit f scientific explratin.
true: Franklin’s experiment did take place. The detail abut the string and the key is true.untrue: What really happened is questined. Maybe Franklin didn’t tuch the key because he wuld centainly have died frm the electric shck.
What may be true and untrue in Franklin’s experiment respectively各自、分别地? Why?
T prve if lightning was really prduced by electricity r smething else, Franklin did an experiment by using a kite with a piece f string 1.______ (tie) t it. A metal key was attached t the string. A flash f lightning hit the kite, and electricity was cnducted thrugh the string t the key. When Franklin tuched the key with his finger, he gt an electric shck, 2._______ prved that lightning was a frm f electricity.
根据课文内容，在空白处填入1个适当的单词或括号内单词的正确形式。
Fr many years, the stry f Franklin's lightning experiment 3._________ (teach) t children t inspire them t lk fr the truth thrugh 4.________ (science) experiments. Hwever, neither the stry nr the details f the experiment are 5._________ (entire) true, because if Franklin had actually tuched the key, he wuld certainly have died 6._________ the electric shck.
has been taught
Scientists ften questin accepted ideas because they want 7.__________(establish) the facts. Sme have even questined the stry abut the apple that fell n Newtn‘s head and led him t cme up with his thery f gravity, because there is n 8._______ (prve) that the falling apple hit him n 9.________ head. In science, facts shuld be prved by experiments and research, and we shuld nt always believe everything we read r hear - even if it 10. _____ (be) a great stry.
t establish
Think & share
1. D yu think it matters that Franklin’s experiment might nt be true? Why?
It depends. Althugh the experiment is nt true, it amazed us by Franklin’s bravery, his scientific apprach t lking fr the truth and his spirit fscientific explratin . Hwever, fr the develpment f science, experiments must be based n facts.
2.What is yur pinin abut the statement陈述“ shuld nt always believe everything we read r hear—even if it is a great stry”?
Firstly, scientific discveries prmte the develpment f ur sciety. Secndly, the cntributins f scientists in medicine extend ur life span. Thirdly, scientists have invented a lt f surprising tls that fundamentally imprve ur living standards.
3.What qualities d yu think a great scientist shuld have?
imaginative