Unit 4 Creatures large and small公开课参赛课教案

Unit 4 Creatures large and small Period 1 Friend or enemy ? (lead -in)

Teaching objectives 1.

To understand the passage by searching for the facts about spiders and the change of Betty’s attitude towards spiders.

2. To develop the reading skills by being involved in some tasks.

3. To be aware of the fact that the spiders are useful to human beings and try to protect them

Teaching Procedures: I. Pre-reading : 1.

Do Exercise A T or F?

(

)1

All spiders are dangerous to humans. (

) 2

Spiders are insects. (

) 3

Some spiders are 25cm in size.

(

) 4

Some spiders eat lizards and birds. →

Are spiders our friends or enemies? 2.

Write down the answers from the students on the blackboard to see whether they are true of false later after reading the dialogue between Betty and Winston. II. While –reading

1. Skim the title, and the first and last eight lines of the excerpt to answers the questions

1)

What did Betty see in the kitchen? 2)

How did she feel when she saw the spider? How do you know it? 3)

What does Winton think of spiders? 4)

What does Betty think of them? 3.

Scan the dialogue and find some facts about spiders.

( Ex C) 4．

Tell “T”or “ F”

1)

Winston changed his view on spider by reading.

F 2)

Spiders are insects.

F 3)

To the insects in the field, spiders are harmless creatures.

F 4)

The natural method of pest control is useless.

F 5) Spiders silk have its unique properties.

T 6)

All spiders’ bites are dangerous to people.

F 7)

Spiders’ poison can treat brain disorders.

T

4.

Answer the questions in Ex E2

5.

Summarize :

Spiders are not___________. They_________ winter by living in _________built by farmers. In spring, they eat _________that attack farmers’ __________. They make webs with___________, which is __________, ________ and__________. Scientists plan to use spider silk in__________, etc.

Their poison can be used to treat________ _________. Therefore, spiders are___________ of insects and __________ of humans.

We should try to understand things in nature and not destroy them.

III. Post –reading

Suppose you are a spider and you are in great danger because human beings can’t understand you. Please introduce yourself and ask for help. You can begin your introduction with this pattern:

I’m a little spider. Although I’m ugly, I’m useful and lovely.

………….

Please don’t value me by my appearance. Help me because we are good friends. Key words:

not an insect,

survive winter,

shelters built by farmers, eat, protect crops,

silk, strong, light, elastic, poison, treat, brain disorders, enemies Homework: 1.

Finish the exercises on P 50--51

2.

Read the play in different roles