人教版必修3英语Unit4_Reading_教学设计

1、Unit4 Reading 名师教学设计(一)Unit 4 Astronomy: The Science of the StarsTeaching PlanPeriod 1 Warming Up and Reading (How Life Began on the Earth)教学重点1. Let students read the passage and learn about the development of the earth.2. Get students to learn different reading skills, especially the reading abili

2、ty of understanding implied meaning of the author.教学难点1. Enable students to understand the passage and know about the development of the earth.2. Let students learn how to use different reading skills for different reading purposes.Teaching Aims:教学目标1 .知识目标1. Get students to learn the useful new wor

3、ds and expressions in this part: astronomy, system, religion, theory, atom, billion, globe, violent, carbon, atmosphere, unlike, fundamental, harmful, acid, chain, multiply, oxygen, exist, thus, dioxide, puzzle, solar system, in time, lay eggs, give birth to, in ones turn, carbon dioxide, prevent. .

4、 . from2. Let students learn about the development of the earth.2 .能力目标1. Develop students' reading ability and let them learn different reading skills.2. Enable students to know about the development of the earth. 3. Let the students learn the sequence of life's origins and process3 .情感目标1.

5、 Train students' interest in science and stimulate their love for astronomy.2. Develop students' sense of cooperative learning.3. Enable the students know the importance of protecting our environment and our earth .Teaching methods:a> Fast reading, careful reading, extensive readingb>

6、Reading and practicingTeaching aids:A slide projectorTeaching procedures and methodsStep I : GreetingsSay hello to everyone.StepH : Warming upToday,we will come to unit4 astronomy. Before that,lets look at a picture on the screen. Show thestudents a picture of a girl who is looking at the sky. Have

7、a free talk with students.Let students brain storm the following question.T: Can you find other adjectives to describe the beautiful sky?S: fantastic charming attractive .T: would you like to enjoy the beautiful scenery in the sky?S: Yes, We d like to.Show students a video and enjoy the beautiful sc

8、enery in the sky in a closer distance.T: Now, are you interested in astronomy?students show their great interest in it.Step m : Pre- readingThe teacher says something about the definition of astronomy and astronomer and then ask them some questions.Q: 1> If you were an astronomer, what else would

9、 you like to know about the universe?2> How the universe began?3> How the life begin on the earth?Most of the students want to know how life began on the earth.T:Of course, each religion and each culture has their own ideas about how life began. Now,I'm going to tell you some legends about

10、 the origin of universe and life. (Pangu separates the sky fr om the earth) (Nuwa makes men from mud)(In Bible, people believe the world and the whole universe was created by God.)T: Do you think so? However, the scientists have a different idea. They believe the universe be gan with a big bang. Let

11、' s watch a video and try to know more about a big bang . Do you want know more information about it?Now, let's come into the reading passage.Step IV Fast readingRead the text fast and then tell me the main idea of each paragraph.Para1 A widely accepted theory about the formation of .Para2 T

12、he formation of .Para3 The importance of for life.Para4 The development of on the earth.Para5 The appearance of and their effects on the earth.Analyse the text:If the text can be divided into two parts,how can we divided according to the different main ideas?Part1Water is important for life to begin

13、 to develop.Part2The development of the living things.Pay attention to the words in red. Students can get the answers easily.Part1 contains para1 para2 and para3. Part 2 contains para4 and para5.Step V Careful readingNow, read the text carefully and loudly for a second time and then complete the fil

14、ls in the pictur es according to the order of evolution of life .If you can't get the answers quickly and easily, you can make use of the pictures.Part1: (para1, 2,3)Pictuer1:According to a widely , the universe began with a that threwin all directions.Picture2: After the “ BigBang” , the earth

15、was just .Picture3:The earth became so that it was not clear whether the shape would last or not. It loudly with. Picture4: They produced and other gases, which made the earth's.Picture5: As the earth cooled down, began to appear on its.Then ask students to talk about the correct order of the de

16、velopment with the teacher together from pPart2 (para4, 5)Picture1:Many millions of years later, the first appear on the.Picture2: This encouraged the later development of.Picture3: Next, plants began to grow on, they were followed by.Picture4:Some were. Others, called, were able to live as well as.

17、Picture5: When the plants grew into,appeared for the first time. They produced young generally by.Picture6: Later, some huge animals, called, developed. They laid eggs too.Picture7: But when dinosaurs disappeared, became more important.Picture8: Finally some small animals, now with, appeared and spr

18、ead all overthe earth.Then talk about the correct order of the development of life together by filling the blanks in the diagr am.Think about what you have read and work in groups to discuss these questions.1. Why did the plants grow before the animals came?2. 2. Why is it wrong to show films with d

19、inosaurs and people together?Step VU: Text RetellingThere is a video about the development of life, but the video has no sound.You are the voice actor or you are the reporter of the video.The student who gets any idea while watching the video can stand up by yourself.Step W: DiscussionT: Look at a p

20、icture and answer my questions?What happened to the earth? Why?What will happen when we put too much CO2 into the atmosphere?(discussion)Ss:Greenhouse effect, glacier melt, the rise of the sea level, global warming and so on.Animals will die out. Plants will die out. There will be no life on the earth.T:As a student, what little things can w