高中英语 选必B4U6-Understanding ideas 陈璇选必B Developing ideas板块教学设计

1、Teaching design of Developing ideasTypeReadingThemeMan and NatureSpace ExplorationContent analysisWhat The passage presented in this section continues the theme of space exploration in terms of an exposition. The text introduces the development of human exploitation in astronomy, with the main focus

2、 on the changes of the telescopes, briefly showing the journey of human space exploration from the start of human history to the first invention of the earth-based telescope, the Hubble Space Telescope and the later more advanced telescopes built on by many countries, like the FAST. All the explorat

3、ion was conducted by people located on Earth, at no personal risk. While these telescopes have been used as our eyes to see further and further into space, human quest for knowledge continues, as when compared to much remains unexplored of the vast cosmic ocean, human investigation of the universe i

4、s just beginning.Why The two reading passages in this unit reflect the spirit of space exploratione in different ways. While the former tells the tragedy of space shuttle Challengers crash that has had a huge impact on the U.S. space exploration program and peoples psychology, the latter focuses on

5、the development of telescopes in astronomy, which reflects the human desire for the unknown and the spirit that pushes scientists to continue the exploration to promote science and help the public understand the cosmos we live in. Therefore, not only should the general and detailed information be un

6、derstood, but the idea that humans have been desiring to explore the unknown and gain immense knowledge should be developed through reflection and discussion. How The passage is an expository text organized in chronological order. Thus, while reading, it is necessary to review and apply reading skil

7、ls such as making predictions about the topic by referring to the keywords in the title, looking for lead-in paragraph, topic sentences and paraphrasing for summary. In addition, students are supposed to develop their competence in raising questions, making inference about the title and context clue

8、s, so that they will finally be able to connect what they know to what they do not know when it comes to problem-solving in reality. Besides, as the passage discusses the changes and development of space telescopes, “time sequencing”does help to interpret the information introduced in the text and a

9、cquire information relevant to each period in their development. Teaching objectivesAfter the lesson, students are expected to:1、acquire information of the development in astronomy mentioned in the passage;2、understand the significance of the technological changes of telescopes in space exploration;

10、3、clarify the different way in which the passage reflects the spirit of exploration compared to the other passage in this unit4、appreciate the spirit of exploration reflected in the passage.Key pointsTo facilitate students to achieve a better understanding of the way in which the message is delivere

11、d about the development of the telescopes;To enable students to present their interpretation of “ we are still close to the start of this incredible journey of discovery”Difficult pointsTo inspire students to raise questions about the title;To enable stududents to clarify their interpretation of “ w

12、e are still close to the start of this incredible journey of discovery”Teaching contentsProceduresPurposes Teachers activityStudents activityLead-inTeacher asks Students to match the images on Page 68 to their nicknames and check their answers;Teacher shares information about the Hubble Space Telesc

13、ope in chronological order and watch a video clip on it;Teacher asks Students to raise questions about the title and try to answer them.Students choose the answers individually;Students check their answers with the teacher;Students watch the video clip;Students try to raise questions about the title

14、 and try to find their answers.To test Students knowledge of space telescopes;To arouse Students interest in reading the passage;To help Students to connect the title to the content , making predictions and developing awareness of raising questions.Activity 1Teacher asks students to read for general

15、 information by looking for the lead-in paragraph;Teacher asks Students to look for the topic sentence of each paragraph;Teacher asks Students to share their understanding of the general information of each paragraph by paraphrasing the sentences;Teacher and Students discuss how each paragraph is de

16、veloped; Teacher and Students discuss how the passage is organized;Teacher makes a summary of “time sequencing”.Students read for general information by looking for lead-in paragraph and clarify their answers;Students look for the topic sentence of each paragraph and check them by referring to what

17、is discussed in the paragraphs;Students share their interpretation of the paragraphs;Students discuss with Teacher how each paragraph is developed;Students discuss with Teacher how the passage is organized;Students develop their understanding of “time sequencing”.To allow Students to apply reading s

18、trategies for reading an expository text to acquire general information; To enable Students to practice thinking logically; To enable Students to think systematically;To help Students visualize the development of the space telescopes.Activity 2Teacher asks Students to read for detailed information i

19、n each corresponding paragraph by referring to the timeline on page 70;Teacher checks answers with Students;Teacher and Students summarize the key information by focusing on how the space telescopes developed.Students read for detailed information in each corresponding paragraph and finish off the d

20、iagrams on page 70;Students check their answers with Teacher;Teacher and Students make a summary of the development of space telescopes.To allow Students to gain detailed information;To allow Students to get familiar with lexical chunks used in the context.Activity 3Teacher asks students to think an

21、d share their ideas of the selected questions on page 70; Teacher asks Students to share their interpretation of the questionsStudents read the questions on page 70 carefully and work on them individually; Students share their ideas and clarify their understandingTo allow Students to develop further

22、 understanding of the theme of this unit; To facilitate Students to think beyond the text;Activity 4Teacher and Students read the original complete version of a quote from Humphry Davy;Teacher asks Students to watch a video clip; Teacher and Students read the selected part of Humphry Davys quote;Tea

23、cher asks Students to share their understanding of the quote ;Teacher asks Students to watch a video. Students first think and share their understanding of the quote literally; Students watch the video clip and combine their interpretation with what is shown in the video clip, paying special attention to how an idea is conveyed, picking up some lexical chunks for word banks when possible; Students read the selected part of the quo