高中英语 选必B4U6-Understanding ideas 课件

1、教学教材：外研版高中英语新教材选择性必修4教学内容：Unit 6 Space and beyond第二课时：Understanding ideas执教人：陈璇 深圳南山外国语学校（集团）高级中学 Feb. 25th, 2022Unit 6 Space and beyond Developing ideas陈璇 深圳南山外国语学校（集团）高级中学1、acquire information of the development in astronomy mentioned in the passage;4、appreciate the spirit of exploration reflected

2、 in the passage.Teaching objectives2、understand the significance of the technological changes of telescopes in space exploration;3、clarify 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 Hubb

3、le Space Telescope to theirnicknames. Predict what the passage is about.PredictionThe Hubble Space TelescopeEdwin Hubble classification 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

4、 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 TelescopeThe 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

5、 They might refer to.because .TipstelescopeActivity1Acquire general information1. development2. space exploration/ astronomy3. telescopes/ changes of telescopes/ technological changes of telescopesRead for general informationThe passage is a/an ( narrative/exposition). It introduces the1._in 2._,mai

6、nly 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 imagination. Topic sentencesthe lead-in paragraphexamplesWhat do we know from Paragraph 2?Read for general informationThe topic sentence of Paragraph 2: With the invention

7、 of the firstearth-based telescope, people were then able to understand that theuniverse is far larger by investigating instead of imagining 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 yea

8、rs later, the Hubble Space Telescope 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.Read for general informationexampleRead for general informationParagraph 5: Space telescopes allow people to see

9、further and further into space, but the human quest for knowledge goes on as much of the universe remains unexplored.Paragraph 4: Currently, 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,

10、 people in ancient times created a world in the sky with their imagination. Paragraph 2: With the invention 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. Paragraph 3: Almost 400 yea

11、rs later, the Hubble Space Telescope 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.the start of human history400 years latercurrentlythe invention of the first telescopeimaginationHow is the infor

12、mation organized?the start of human history in 2016The order in which a series of ideas is conveyed in an essay is called “sequencing”.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

13、 is often used to discuss changes and development. first/ first of all, then, next, . before, after, when, . some 300 years later,almost 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

14、 was believed that the huge eyes of the large-eyed bronze statues from the Chinese archeological site at Sanxingdui were able to 2_. 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,

15、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 ability 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

16、6._, and even to new planets.Complete the timeline with information from the passage.1432Complete the timeline with information from 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 ta

17、ken 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 telescope 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 discove

18、ries beyond our imaginations. Thousands of years ago, people already regarded the night sky as an 1.endless source of fascination. It 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

19、 stars. Our power to see the sky changed dramatically when 3. the first telescope was angled at the night sky. It extended 4. the power 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 t

20、he night sky, people in ancient times _ with their _. With the invention of _, people were then able to understand that the universe 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 gre

21、at distance, but helping to discover more facts about the world in the sky. Currently, many countries have been working on building _ 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 F

22、ascinated by the stars in the night sky, people in ancient times created a world in the sky with their imagination. With the invention 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.

23、Almost 400 years later,the Hubbl Space Telescope 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 more advanced telescopes to investigate furt

24、her into space.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.Activity3Think and share1. Why do you think people have always been interested in the stars?3. In what different ways do the two re

25、ading passages in this unit reflect the spirit of exploration?2. Which development in astronomy mentioned in the passage has made the greatest impression on you?Word banksfascination, curiosity, mystery.cosmic ocean, space exploration.visible, invisible.telescopes, spaceship. One possible version in

26、 response to Question 3 The first passage is about the challenger disaster. Although it was a tragedy people did not stop exploring space 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 ho

27、w it reflects our desire to explore the unknown. Unlike exploration conducted by astronauts such as those in the Challenger, the exploration 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 s

28、how that there are different ways of exploring that universe and of gaining knowledge.Activity4Food for thoughtWhat do “eyes” refer to? -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 discovery we sense where the limit of knowledge is; we feel where