人教2003课标版《Warming up、Pre-reading、Reading、Comprehending》公开课教案下载

人教2003课标版《Warming up、Pre-reading、Reading、Comprehending》公开课教案优质课下载

1. To improve the ability of grasping the main idea and finding key information.

2. To enable the students to talk about cloning and help them to have a good and correct knowledge of cloning.

3.How to deal with expository writing in reading comprehension.

Warming up

Task 1: Warming up

1.What is cloning?

Cloning is a way of making an ________ ______ of another animal or plant.

2. Do you know how natural clones and man-made clones differ?

A _______________ is one that occurs in nature.

A _______________ is one that is produced through human intervention(人类介入).

3. What benefits can humans gain from cloning?

________________________________________________________________

________________________________________________________________

An actress of the class---- Dolly the sheep

1. When was Dolly the sheep born?

2. Is she man-made or natural cloning?

3. How long did she live?

4.Why is she very famous?

Procedure of cloning a sheep

Step 1 Female sheep A provides ___whose nucleus is removed from.

Step 2 Female sheep B provides ____whose nucleus is taken out of

Step 3 The nucleus from sheep B and egg cell from sheep A

Step 4 The cell _____and grows into an embryo

Step 5 The embryo is put into female sheep C, who becomes the ______of the clone.

Step6 A lamb called Dolly is cloned.