Unit 6 Developing ideas ppt课件-（2019）新外研版高中英语选择性必修第四册.pptx

1、Unit 6 Space and beyond Developing ideas1、acquire information of the development in astronomy mentioned in the passage;4、appreciate the spirit of exploration reflected in the passage.Teaching objectives2、understand the significance of the technological changes of telescopes in space exploration;3、cl

2、arify the different way in which the passage reflects the spirit of exploration compared to the other passage in this unit;Lead-in1. Match the images taken by the Hubble Space Telescope to theirnicknames. Predict what the passage is about.PredictionThe Hubble Space TelescopeEdwin Hubble classificati

3、on system for galaxiesthe Hubble Constant 哈勃常数（天文学计量单位） 10 years, 10,000 people小标题April 24, 1990 ( launch)a defect（毛病） in the opticalmirrors （反光镜）of the telescopeabove the splendor Africas Cape of Good Hope, launch, once againDecember 2, 1993(install corrective devices)小标题小标题小标题The Hubble Space Tele

4、scopeThe Hubble Space Telescope What does “eyes” refer to? Whose “eyes” are they? Why are there “eyes” upon the night? Prediction 2. Raise questions based on the title They might refer to.because .TipstelescopeActivity1Acquire general information1. development2. space exploration/ astronomy3. telesc

5、opes/ changes of telescopes/ technological changes of telescopesRead for general informationThe passage is a/an ( narrative/exposition). It introduces the1._in 2._,mainly in the field of 3._. Fascinated by the stars in the night sky, people in ancient times created a world in the sky with their imag

6、ination. Topic sentencesthe lead-in paragraphexamplesWhat do we know from Paragraph 2?Read for general informationThe topic sentence of Paragraph 2: With the invention of the firstearth-based telescope, people were then able to understand that theuniverse is far larger by investigating instead of im

7、agining the world in the sky.numberscompare and contrastRead for general informationThe topic sentence of Paragraph 3:What do we learn from Paragraph 3? Almost 400 years later, the Hubble Space Telescope took great pictures of space, not only allowing people to see much over great distance, but help

8、ing to discover more facts about the world in the sky.Read for general informationexampleRead for general informationParagraph 5: Space telescopes allow people to see further and further into space, but the human quest for knowledge goes on as much of the universe remains unexplored.Paragraph 4: Cur

9、rently, many countries have been working on building more advanced telescopes to investigate further into space. Paragraph 1: Fascinated by the stars in the night sky, people in ancient times created a world in the sky with their imagination. Paragraph 2: With the invention of the first earth- based

10、 telescope, people were then able to understand that the universe is far larger by investigating instead of imagining the world in the sky. Paragraph 3: Almost 400 years later, the Hubble Space Telescope took great pictures of space, not only allowing people to see much over great distance, but help

11、ing to discover more facts about the world in the sky.the start of human history400 years latercurrentlythe invention of the first telescopeimaginationHow is the information organized?the start of human history in 2016The order in which a series of ideas is conveyed in an essay is called “sequencing

12、”.the first telescope some 300 years later/ 400 years laterLearning to learn Time sequencing is a common method to explain how events change and develop with time . It is often used to discuss changes and development. first/ first of all, then, next, . before, after, when, . some 300 years later,alm

13、ost 400 years later, in 2016, the follwing year, .Activity2Acquire detailed information1432 Thousands of years ago, people already regarded the night sky as an 1._. It was believed that the huge eyes of the large-eyed bronze statues from the Chinese archeological site at Sanxingdui were able to 2_.

14、Our power to see the sky changed dramatically when 3_. It extended 4_ and caused us to realise that the universe is a far larger place than we ever imagined. In 2016, 7._was built in China. It is used in the search for dark matter, which cannot be observed by ordinary telescopes. Its 8._ has the abi

15、lity to make discoveries beyond our imaginations. In 1990, the Hubble Space Telescope was launched into orbit. For the first time, people could 5._. These ranged from 6._, and even to new planets.Complete the timeline with information from the passage.1432Complete the timeline with information from

16、the passage. In 1990, the Hubble Space Telescope was launched into orbit. For the first time, people could 5.see the breathtakingly beautiful images of our universe taken from beyond Earth. These ranged from 6.enormous clouds of gas to huge black holes, and even to new planets. In 2016, 7.the FAST t

17、elescope was built in China. It is used in the search for dark matter, which cannot be observed by ordinary telescopes. Its 8.vast dish has the ability to make discoveries beyond our imaginations. Thousands of years ago, people already regarded the night sky as an 1.endless source of fascination. It

18、 was believed that the huge eyes of the large-eyed bronze statues from the Chinese archeological site at Sanxingdui were able to 2 look across great distances into the stars. Our power to see the sky changed dramatically when 3. the first telescope was angled at the night sky. It extended 4. the pow

19、er of the human eye and caused us to realise that the universe is a far larger place than we ever imagined. A summary of what we have read Fascinated by the stars in the night sky, people in ancient times _ with their _. With the invention of _, people were then able to understand that the universe

20、is far larger by _ instead of imagining the world in the sky. Almost 400 years later, the _ took great pictures of space, not only allowing people to see much over great distance, but helping to discover more facts about the world in the sky. Currently, many countries have been working on building _

21、 to investigate further into space. Space telescopes allow people to see_ , but the human _ goes on as much of the universe remains _. A summary of what we have read Fascinated by the stars in the night sky, people in ancient times created a world in the sky with their imagination. With the inventio

22、n of the first earth- based telescope, people were then able to understand that the universe is far larger by investigating instead of imagining the world in the sky. Almost 400 years later,the Hubbl Space Telescope took great pictures of space, not only allowing people to see much over great distan

23、ce, but helping to discover more facts about the world in the sky. Currently, many countries have been working on building more advanced telescopes to investigate further into space.Space telescopes allow people to see further and further into space, but the human quest for knowledge goes on as much

24、 of the universe remains unexplored.Activity3Think and share1. Why do you think people have always been interested in the stars?3. In what different ways do the two reading passages in this unit reflect the spirit of exploration?2. Which development in astronomy mentioned in the passage has made the

25、 greatest impression on you?Word banksfascination, curiosity, mystery.cosmic ocean, space exploration.visible, invisible.telescopes, spaceship. One possible version in response to Question 3 The first passage is about the challenger disaster. Although it was a tragedy people did not stop exploring s

26、pace this shows that people will always seek to explore, even if some lose their lives in doing so. The second passage is about the development of the telescope and how it reflects our desire to explore the unknown. Unlike exploration conducted by astronauts such as those in the Challenger, the expl

27、oration in the second passage was conducted by people located on earth at no personal risk. Nonetheless,The knowledge gained from Telescopes is immense. The passages show that there are different ways of exploring that universe and of gaining knowledge.Activity4Food for thoughtWhat do “eyes” refer t

28、o? -Humphry Davythe James Webb Space Telescope The more we know, the more we feel our ignorance; the more we feel how much remains unknown Humphry DavyPoint of view:Argument:Supporting examples:1. What is the meaning of Humphry Davys quote? 2. Do you agree with it? Every time we make a new science d

29、iscovery we sense where the limit of knowledge is; we feel where ignorance begins. Science is, for certain, what we think we know, but more precisely, it is being aware of the boundaries of the unknown.Self -assessment1、I am able to talk about the development in astronomy mentioned in the passage in

30、 chronological order;2、I understand the development of telescopes have extended the power of the human eye so that we can investigate space further and further; 3、I am aware that human quest for knowledge of space never stops and never will. 1. 2. 3. 4. 5.1. 2. 3. 4. 5.1. 2. 3. 4. 5.AssignmentChoose

31、 one from the two topics below: 1. To what extent do you agree or disagree with the idea that currently in space exploration both cooperation and competition among countries are essential? Please clarify your point of view within 150 words. 2. Revise your interpretation of Humphry Davys quote and tell us whether you agree with it. Organize your argument and support it with examples with no more than 150 words.