Using LanguageⅡppt专用说课稿内容

Unit 2

Cloning 武汉市第十二中学

马育林

Analysis of teaching material Since the cloning technique is difficult to understand, students may find it hard to express and describe the procedure of cloning. So the emphasis is on enabling students to have certain knowledge of cloning. Students should be able to describe the cloning procedure with the help of pictures, and to understand reading and listening materials related to cloning. Main structure of designed teaching material Some teaching materials in the text are out-dated, and the lack of audio material makes the class dull and boring. So I collect variant complementary materials to enrich students’

vocabulary and sentence structures. And each part is acting as a stepping stone for the next one. All the activities together are combined into a complete circle. As for the final aim, students can improve their listening, speaking and writing ability.

1.

Warming up& review Before the class begins, play a short video clip to help students have a rough understanding of cloning, Dolly the sheep. Using simple questions helps students to review the context of the first reading passage. This part acts as a test for the upcoming oral expression part. 2.

Review & describe: How does cloning work? Students should be able to describe the main procedure of cloning. The technical will be presented to the students. The aim is not to test students’ related vocabulary but to focus on testing the understanding of cloning technique. This part acts as a bride for finding the difference in cloning technique in the movie.

3.

Audio-visual Task. After the previous illustration about cloning technique, play a video clip to further explain and help students understand cloning in a more vivid way. The video clip not only can help students understand the technique but also provides information for the next task--blank filling. Comparing the two different cloning techniques, raise a question for students to think about. The question then acts as a bridge for the reading activity. 4.

Reading. Since the reading material is rather straightforward. Only two questions need to be answered. One is general, and the other is more specific. The aim of this part is not improving students’ reading skills, but to practice their ability to obtain information through logical thinking. The following production is based on the answer to the specific question. 5.

Production Introduce some extinct animals, and presents their description and characteristics. Considering the given information from the reading passage, students can roughly conclude whether these animals can be brought back to life. After making sure students have fully comprehended cloning technique, ask students to make a poster.

Unit 2

Cloning 1.

Video&Review 

The word "cloning" means __________________________. 

___________ was cloned in the reading passage. 

___________ is the easiest one to clone. 

Is it possible to clone extinct animals? ____________________________________________________________________________________________________

2.

Review & Describe: How does cloning work ? yolk---the core

egg white----the cell



Which one will the cloned sheep look like? 

Do we have to use 3 sheep in the process of cloning? When cloning Dolly, Sheep B provided the genetic information, the core, and sheep A offered the cell to hold the genetic information. Next the embryo was put into sheep C, the carrier of the clone. Then came Dolly.



A1:

B, cause it provides the genetic information 

A2:

3.

3.

Audio-visual Task.

possibility

drop

brought

fossilized

fill in

blueprint

block

extinct

branch

brought Jurassic Park and Cloning Blood contains billions of DNA which is the building

of life. A DNA strand, the

for building a living thing, can be used for cloning

creatures, like dinosaurs. With a

of blood, dinosaurs can be

back to life. Mosquitoes feed on the blood of animals. When relaxing on a

of the tree, they might be suck in the sap and became

. Thus, the blood is preserved inside the mosquitoes. Scientists can get genetic code from the blood. Since it's old, a frog's DNA is used to

the holes, which provides the

to clone a dinosaur. Facts about Jurassic Park

Jurassic park is a 1993 American science-fiction adventure film. In the movie, the Jurassic Park is the theme park where a small team of genetic scientists have created a wildlife park of cloned dinosaurs. Unlike Dolly the sheep, scientists use a drop of blood instead of a cell to bring various dinosaurs back to life.

4.

Reading. 

Is it possible to clone dinosaurs? Conclusion:

Support:

Successful cloning requirement (1)

(2)

(3)

5.

Bridge: May the best animal win！

Name

dodo bird

Information

unable to fly; friendly and not harmful; large eggs and tasty meat that could be developed for food; needs hot climate

commonly equipped with long, curved tusks, a covering of long hair;

ancestors of modern elephants; twice as large as an elephant; needs

cold climate the largest predator; with huge head, long tail but small hands; fierce and aggressive with powerful bites; lives in western North America

example poster mammoth

T- Rex

Reasons: _________________________________________________ _________________________________________________ Benefits: _________________________________________________

_________________________________________________ _________________________________________________

Task：

poster making about cloning

Requirements:

design your poster and finish the decoration part leave some space for filling in words one group for a poster try to be practical and beautiful at the same time