1、Book 5 Unit 1 Great scientistsReading,writing and learning tips Copernicusborn:in Poland in 1473died:May 24,1543Birth:February 19,1473Death:May 24,1543Place of Birth:Toru,PolandCareer:1491-1494 Studied mathematics at Krakw Academy1496 Went to Italy to study astronomy and law at the University of Bol
2、ogna1497 Began observations of the Sun,Moon,and planets 1514 Wrote Commentariolus,an outline of his astronomical ideas,but did not circulate it widely1543 Published De Revolutionibus Orbium Coelestium(On the Revolutions of the Celestial)Read the passage and find the experiences of Copernicus:Pre-rea
3、dingWe know the first scientist is Copernicus.He was one of the first scientists to use mathematical observations to collect information.He believed the sun is the center of the universe and the earth and other planets went around it.The chart on P.7 shows his theory.Copernicus Revolutionary TheoryE
4、ight Planets In the Solar SystemMercury 水星Venus 金星Earth 地球Mars 火星Jupiter 木星Saturn 土星Uranus 天王星Neptune 海王星Eight Planets In the Solar System:Mnemonics(记忆术)Mercury Venus Earth Mars Jupiter Saturn Uranus NeptuneMy Very Easy Method:Just Set Up Nine Planets.Can you use a good method to memorize them?Read
5、through the passage,and tell whether the following statements are true or false.1.At Copernicus time,Christian Church was in charge of many western countries.2.Copernicus noticed that observed from the earth,some planets appears in front of or behind the earth.3.Copernicus didnt show his new theory
6、to his friends until he completed it.TFT4.His friends were not interested in his ideas.5.Since he was not afraid of being attacked by the Church,Copernicus published his book as soon as he finished working on it.6.Newton,Einstein,and Hawking are all scientists who made contribution to the study of t
7、he universe.FFTRead carefully and try to draw the two theories of the universe.Before Copernicus theoryShowing Copernicus theoryThe Earth was stationary at the center of the solar system,and the Sun and planets revolved around it.The Sun is stationary at the center of the solar system,and the Earth
8、and the other planets orbit around it.Analyze the following picture carefully and try to explain how a loop is formed.Read the text carefully,then answer these questionsreadingCareful(1)Why could he not tell about his theory?(Para 1)Because the powerful Christian Church would have punished him for e
9、ven suggesting such an idea(2)What was his theory about?(Para 1)All his mathematical calculations led to the same conclusion:that the earth was not the centre of the solar system.Only if you put the sun there did the movements of the other planets in the sky make sense.(3)What had the astronomers no
10、ticed in the sky?(Para 2)They had noticed that some planets in the sky seemed to stop,move backward and then go forward in a loop.Others appeared brighter at times and less bright at others.(4)When did Copernicus complete his theory?(Para 3)Between 1510 and 1514 he worked on it,gradually improving h
11、is theory until he felt it was complete.(5)How did he explain changes in the movement of the planets and in the brightness of the stars?When did he publish his idea?(Para 4)He placed a fixed sun at the centre of the solar system with the planets going round it and only the moon still going round the
12、 earth.He also suggested that the earth was spinning as it went round it and this explain changes in the movement of the planets and in the brightness of the stars.He published it as he lay dying in 1543(6)Why do people think that there is a direct link between his ideas and the work of Isaac Newton
13、,Albert Einstein and Stephen Hawking?Because his theory is now the base on which all our ideas of the universe are built.His theory replaced the Christian idea of gravity which said things fell to earth because God created the earth as the centre of the universe,He showed this was obviously wrong.Di
14、scussion:If you were Nicolaus Copernicus,would you have hidden your theory for so many years?Why?As a scientist,Copernicus was more cautious than coward.If he had published his ideas at his time,he would have been killed just as Bruno who was burnt to death because his theory was against the Christi
15、an Churchs.Every time when a new idea appears,there are always rejections.Its normal.Scientists should have patience to spread their truth.As a scientist,one should be brave.But Copernicus was afraid of being attacked by the Christian Church.So he had hidden his theory for so many years.What do you
16、think of this?Agree:1.He was cautious.if he had published his ideas,he would have been killed just as Bruno who was burned to death because his theory was against the Christian Church.2.Every time when a new idea appears,there are always rejections.Its normal.Scientists should have patience to sprea
17、d their truth.3.It made no sense for him to publish his theory in a hurry.He was just cautious not coward.He should protect himself first.Disagree:1.Copernicus was very coward.He should speak out his discovery and let the world know the truth earlier.2.Science can never advance unless people have th
18、e courage of their beliefs.3.As a scientist,you must have the courage to publish your findings.No matter how people oppose them,time will show if your ideas are right or wrong.Write a short letter asking Copernicus to publish his ideas so everyone can read them.Write a short letter asking Copernicus
19、(not)to publish his ideas so everyone can read themOne possible version:Dear Nicolaus Copernicus,I am a student studying astronomy and I would very much like to read your new theory about the solar system.I hope you will publish it for several reasons.I understand the problems with the present theor
20、y.The way the planets move is not what you would expect if the earth was the center of the universe.It is also odd that the brightness of some stars seems to change.So I agree with you that we need a new theory.Yours sincerely,Lin QiI know your observations have been very carefully carried out over
21、many years.Now you must have the courage to publish them.Science can never advance unless people have the courage of their beliefs.I know you worry about what will happen if you publish your new theory.No matter how people oppose it,time will show if your ideas are right or wrong.So I hope you will
22、feel you can publish your new theory.One possible version:Dear Nicolaus Copernicus,I am a student studying astronomy and I would very much like to read your new theory about the solar system.I hope you will publish it for several reasons.I understand the problems with the present theory.The way the
23、planets move is not what you would expect if the earth was the center of the universe.It is also odd that the brightness of some stars seems to change.So I agree with you that we need a new theory.Beginning:Tell Copernicus who you are and why you want him to publish his ideasParagraph 1:Reason 1 and
24、 evidence Yours sincerely,Lin QiI know your observations have been very carefully carried out over many years.Now you must have the courage to publish them.Science can never advance unless people have the courage of their beliefs.I know you worry about what will happen if you publish your new theory
25、.No matter how people oppose it,time will show if your ideas are right or wrong.So I hope you will feel you can publish your new theory.Paragraph 2:Reason 1 and evidenceSumming up:Ask him to think again about publishing his ideas1.Finish your letter after class.2.Revise the words and language points
26、 in this unit.3.Finish“Summing up”.Language points:revolution&revolutionary e.g.Mao Zedong is the great leader of the Chinese Revolution.Sun Zhongsan is a great revolutionary leader.lead to引起；造成；导致。This will probably lead to trouble in the future.这很可能将导致日后的麻烦。This let to his conclusion that she was
27、guilty.这使他得出了她有罪的结论。Only if you put the sun there did the movements of the other planets in the sky make sense.只有你把太阳放在中心位置上，天空中其他行星的运动才能说得清楚。only if 只有；只要。当以only引导的短语或状语从句放于句首时，为了加强语气，句子需要倒装。1)Only if a teacher page permission is a student allowed to enter the room.2)Only by shouting and waving his
28、 hands could he be noticed.make sense 讲得通；有道理1)看这里，读这个句子，好像一点也讲不通Here,read the sentence.It doesnt seem to make sense.2)你编的故事我听不明白。Your story doesnt make sense to me.spin-spun-spinninge.g.We span the coin to see who would have first turn.I spun around to see who had spoken.He placed a fixed sun at th
29、e centre of the solar system with the planets going round itand only the moon still going round the earth.他把太阳固定在太阳系的中心位置上，而行星则围绕着太阳转，只有月球仍然绕着地球转。with the planets going round it是with+宾语+宾语补足语的结构，在句中作状语。这一结构在句中常作定语或状语，作宾补的可以是介词短语、过去分词、形容词、副词或动词不定式等。现将其基本形式归纳如下：(1)With+n./pron.+介词短语He sat there with a
30、 smile on his face.(2)With+n./pron.+副词With Mr Smith away,weve got more room.(3)With+n./pron.+不定式With so much work to do,he could not go home.(4)With+n./pron.+现在分词The street was quiet with no buses running.(5)With+n./pron.+过去分词In came a man with his hands tied back.(6)With+n./pron.+形容词He wrote a shir
31、t,with the neck open,showing his bare chest.reject:e.g.If you dont like Tom,you may reject his gift.If you dont think the suggestion is suitable for you,you may reject it.enthusiastice.g.Shes very enthusiastic about singing We explain our plan,and he is very enthusiastic.cautious:careful to avoid ri
32、skbe cautious about/of sb./sth.e.g.The bank is very cautious about lending money.My father is a very cautious driver.Reading task“Seven Bridges of Konigsberg”and the famous“Euler path”.Skimming:Whats Eulers puzzle?Leonhard Euler (1707-1783)Born:15 April 1707 in Basel,SwitzerlandDied:18 Sept 1783 in
33、St Petersburg,RussiaEuler was a famous mathematician in the eighteenth century,he introduced a new branch of mathematics called topology.It is a form of geometry that help you understand things by turning them into diagrams.Scanning:How did Euler prepare for his research?What are the theories?Puzzle
34、 ABCAABBCCDDECan you go over it without missing any points or going over a line twice?FABCAABBCCDDEstartfinishFABCAABBCCDDEEuler said,“If a figure has more than two odd points,you cannot go over it without lifting your pencil from the page or going over a line twice.”A.B.C:even pointsA.B:even pointsC.D:odd pointsC.D.E.F:odd pointsA.B:even pointsFLook at the following pictures and draw a conclusion:ConclusionEulers theory(一笔画)可以一笔画只有两种情况：1.没有奇数顶点。2.只有两个奇数顶点。DiscussionWhat qualities make a good scientist?
