Learning about Language公开课教案（教学设计）

Unit 4 Astronomy: the science of the stars (Reading: How Life Began on the Earth) 1. Background information Teaching material: PEP Book3 Unit 4 Astronomy: the science of the stars Type of lesson: Reading

Teaching methods: Audio-visual teaching method, TBLT Learning methods: cooperative study Teaching aids: Multi-media, blackboard, chalk 2. Students’ situation

Most students have a poor English foundation, and they may feel difficult and boring to read article about science. So I try to design some activities to arouse SS’

interest. 3. Contents (1) The topic in this unit is “astronomy”, and the contents include “solar system”, “how the life began on the earth”, “Big Bang”, “moon exploration”, and “black-hole”

effect. The first passage is “How Life Began on the Earth”, which infers the origin of life on Earth and the process of biological evolution by analyzing the theory of Big Bang scientifically. (2)Main vocabularies and phrases: astronomy, system, religion, theory, atom, billion, globe, violent, carbon, atmosphere, solar system, in time, lay eggs, give birth to, in one’s turn…

(3)Main structure: Noun clauses as the object, so… that引导结果状语从句，”make +宾语+宾语补足语”复合结构

4. Objectives At the end of the lesson, SS are able to: (1) Language competence: Sort out the structure of the passage and understand the origin of life on Earth and the process of life evolution. (2) Cultural awareness: Learn to deal with things scientifically, and inspire passion for exploring science.

Concern the future of the Earth, and think about the crisis the Earth is facing, and realize the importance of protecting the environment and caring for life.

(3) Thinking qualities: Develop their ability to think independently, reason, judge and think creatively.

(4) Learning ability: Help them form effective learning strategy and improve independent reading abaility. 5. Focal points

(1) Let SS understand the process of the origin of life (2) Get SS to have knowledge of solar system 6. Difficult points (1) Develop SS’ ability of acquiring, analyzing, and dealing with information. (2) Retell the process

of the origin of life

7. Procedures and time allotment Stage 1 Lead in (5 min) (Purpose: Get SS learn some words about astronomy and T leads in the topic of this lesson. And arouse SS’ interest to inspire them to explore the space) Step 1 Learn some astronomical terms

[T shows some pictures to help SS understand “astronomy”, “astronomer”, “the Black Hole”, “the Milky Way”, “Total Solar Eclipse”, “Total Lunar Eclipse”, “Meteor Shower”, and Solar System]

Step 2 Learn the eight planets in solar system Activity 1 Know more about our solar system [T asks SS two questions and shows them the pictures of eight planets. Then T tells SS the English names of these planets. Next, T lets SS watch a video to know why Pluto is removed from the planets.] T: How many planets circle around the sun in the solar system? S: 8. T: And what are the names of those planets? S: 金星、水星……

T: Let’s see a picture together.

(T teaches SS to know the planets) T: And in this picture, do you find a star we haven’t mentioned? S: Yes, the farthest one. T: what is it? S: Pluto. T: Years ago, there are nine planets in solar system including Pluto. But later Pluto was removed from the planets, so now there are eight planets. Do you know why? S: No. T: Let’s watch a video to know more about it. Stage 2 Pre-reading (3 min) (Purpose: make SS know about the background knowledge of life evolution and prepare for reading) Activity 2: Discuss the beginning of the universe and origin of life in different religions and cultures T: Each religion and culture has its own ideas about how life began on the earth. Now please discuss in groups the beginning of the universe and origin of life in different religions and cultures. You can discuss from the aspects of mythology and science. S: …

Stage 3 While-reading (17 min) (Purpose: Look through the passage quickly and get the main idea and develop SS’

ability of independent inquiry and summary) Step 1 Fast-reading Activity 3: Match the main idea with the proper paragraph

(1) Paragraph 1

A: How humans appeared and what effects they had on the earth. (2) Paragraph 2

B: Water is very important to life on the earth. (3) Paragraph 3

C: How the earth formed. (4) Paragraph 4

D: How the plants and animals on the earth developed. (5) Paragraph 5

E. It is widely accepted that the universe began with a “Big Bang”

(1) - (5): ECBDA Step 2 Careful-reading Activity 4: Choose the best answers according to the text 1. This passage is mainly about ________

C A. the earth’s atmosphere

B. the solar system

C. the development of life.

D. the difference between the earth and other planets 2. What happened shortly after the “Big Bang”?

A A. The earth was just a cloud of energetic dust.

B. The earth became a solid ball quickly. C. The earth’s atmosphere appeared. D. Water stayed on the moon. 3. What makes the earth different from other planets?

C A. It’s quite warm on the earth. B. There is plenty of atmosphere. C. Small plants growing on the surface of the water appeared. D. The first oceans and seas were filled with oxygen. 4. When _____, reptiles appeared.

C A. the first green plants began to appear on land

B. land animals appeared C. the plants grew into forests

D. early shellfish developed Activity 5: Scanning for putting the order of developing of life into a timeline

1. Insects and amphibians appeared

2. Dinosaurs appeared. 3. The earth became a solid ball

4. Small plants grew on the water. 5. Reptiles appeared

6. Plants began to grow on dry land. 7. The earth was a cloud of dust

8. Water appeared on the earth 9. Shellfish and other fish appeared

10. The universe began with a “Big Bang”

11. Clever animals with hands and feet appeared

12. Mammals appeared. 10 7 3 8 4 9 6 1 5 2 12 11 Stage 4 Post-reading (15 min) (Purpose: Let SS change the output mode of the article information) Activity 6: Draw a flow chart or diagram to present the process of the origin of life [T lets SS underline things in chronological order as they appear. And then draw a flow chart or diagram to present the process of the origin of life]

Activity 7: Retell the passage according to the flow chart you have drawn

Stage 5: Self-assessing (Purpose: let SS have self-assessment) You can Very well Well

Only with

I need to the help work harder of others

Know the names of eight planets in

solar system Know the theory of the beginning of

universe Give a brief introduction to the

beginning of the earth in my own words Use the new words and expressions of

this Unit in speaking Stage 7: Assigning homework

(Purpose: help SS consolidate the knowledge)

Find more puzzles hidden in the passage and try explaining them. For example, “How did the water on the Mars disappear?””

Why did the plants grow before the animals?”