高中英语-Unit4-全单元教案必修三

Unit 4 Astronomy: the science of stars

Period 1 Warming up & Pre-reading

Teaching aims:

1.Learn the new words.

2.Talk about the science of stars

Step 1 Words

Learn the new words of this unit.

Step 2 Warming up & lead in

1.Talk about science subjects

T: Good morning/afternoon, everyone. What class do you have today?

S1: Maths, English, Chinese, physics, history, and geology.

T: What other subjects do you have in school?

S2: Computer, chemistry, biology, music, PE, and politics.

T: Which is your favourite? Why?

S3: My favourite one is …because it’s very interesting/exciting/instructive/…

S4: I like …best because …

2.Talk about universe and solar system

T: Let’s follow this astronomer to learn about universe. How did the universe come into being? S1: After the “Big Bang”, the universe came into being.

T: Do you know the solar system in the universe? What is it made up of?

S2:The solar system contains eight planets and many comets and other objects.

T: Can you name the eight planets?

S3: The Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

T: Which planet do we live on? Can you describe what it looks like?

S4: Earth. It supports a variety of life and 70% of the earth is covered with seas or oceans. T: Why does life only exist on the earth?

S5: Because there is air and water on the earth.

Step 3 Pre-reading

Get the students to discuss the questions on page 25 with their partners. Then ask the students to tell their stories. Encourage them to tell different stories, If they don’t know any, tell them some.

Read some stories to the students.

Pangu separates the sky from the earth;

The Biblical Account;

India;

Japan;

Europe;

Let them discuss in groups.

Step4 Homework

1.Review the words of this unit.

2.Preview the passage of “Reading”.

3.Do page 27 Ex.3.

Unit 4 Astronomy: the science of stars

Period 2 Reading and Comprehending

Teaching Aims: Enable the Ss to say something about astronomy

Help the students to form a good habit of reading

Cultivate the Ss' awareness of protecting the earth.

Teaching Importance: How to improve the Ss'ability to understand how life began on the earth

Teaching Methods:

Task--based method

Teaching Procedure:

Step1. Warming up

1.Free talk

2.Review the words of Unit 4 by playing chess on the blackboard.

Step2 Leading-in

1.Talk about some pictures.

2.Watch a video and then ask the Ss to put the pictures on the screen into a right

order.

Step3 Reading

Task 1 Skimming

Read the passage quickly and join the main idea for each paragraph.

Para.1a)The arrival of humans and their impact on the earth

Para.2 b)The development of plants and animals on the earth

Para.3 c)A widely accepted theory about the formation of the universe

Para.4 d)The importance of water for life

Para.5 e)The formation of the earth

Task 2 Scanning

Read the passage carefully and then fill in the blanks with different kinds of living things.