2019-2020学年高中英语人教版必修三Unit4单元教案

2019-2020学年高中英语人教版必修三

Unit 4 Astronomy: the science of the stars

Teaching goals 教学目标

1 Target language目标语言

a重点词汇和短语

suffer, settle , realize , worry about , have got to, tie up

b重点句子：

He was very disappointed.

What it was to become was a mystery.

To save money, you must use as few words as possible.

c. Practise talking about problems in study or life

My problem is…

The difficulty is…

My trouble is…

The question is…

My advice is…

What I think about it is…

The fact is…

My suggestion is…

2 Ability goals 能力目标

Learn to use Noun Clauses as the subject..

3 Learning ability goals 学能目标

Let Ss learn how to use Noun Clauses as the subject

Teaching important points教学重点

the use of Noun Clauses as the subject

Teaching difficult points教学难点

How to teach the Ss to learn to use Noun Clauses as the subject

Teaching methods教学方法

Learn grammar through practice

Teaching aids教具准备

A projector

A blackboard

Teaching procedures & ways教学过程与方式

Step I Revision

1. Check retelling of the passage.

The explosion of the earth produced water vapor, which turned into water when the earth cooled down. Water allowed the earth to dissolve harmful gases into the oceans and seas. That made it possible for life to begin to develop. The arrival of small plants encouraged the development of early shellfish and all sorts of fish. Many millions of years later the first green plants began to

appear on land. Later land animals appeared. Some were insects. Others, called amphibians, were able to live on land as well as in the sea. When the plants grew into forests, reptiles appeared for the first time. Later, dinosaurs developed. They became the most important animals on the earth for millions of years. After they disappeared, mammals became more important. They were the last group of animals and they were different because they produced their young from within their bodies. Small clever animals, with hands and feet, appeared and spread all over the earth. As time went by, they covered the earth and have become the most important animals on the planet.

2. Translate the following sentences.

1. 你迟早会成功的。

2. 我的车与你的不一样。

3. 站在门旁边的那个人是谁？

4. 他总是第一个来，最后一个离开。

5. 既然你已经长大了，你自己决定吧。

Suggested answers:

1. You’ll succeed in time.

2. My car is different from yours.

3. Who is the person standing by the door?

4. He’s always the first to come and the last to leave.

5. Now that you have grown up you can decide it yourself.

Step II Word study

This part is a consolidation of the words learnt in this unit. Ask the Ss to do the exercise independently.

1.Page27.First let Ss finish Part1 and

2. (3 minutes)

T: Now please open your books and turn to Page 27. First let’s learn about language. Use the words you’ve learnt in this unit to fill in the blanks and complete the form with suitable words.

2. Check the answers with the whole class.

3. Give the Ss three minutes to finish Part 3.

T: Divide the words into two groups. Do you know what do fierce and peaceful mean? “Fierce” means violent and angry or strong. “Peaceful” means quiet and calm.

4. Let Ss read Part 4 for a while and finish it.

5.Turn to Page63 Part 1 and 2. First let Ss finish them and check the answer.

Key to the exercises:

Part1 Across: 2.float 5.mass 6.presence 8.carbon 9.mobile

Down: 1.planet 2.force 3.astronomy 4.explore 7.circle

Part21.energetic 2.surface 3.depends on 4.gradually 5.exists 6.prevent…from 7.spread 8.are multiplying 9.Now that

6. Part3 can be homework if time is limited.

Step III Preparation

Show some example sentences on the screen.

1 A tree has fallen across the road.