模块5 Unit 3 Welcome to the unit(译林牛津版高二英语必修五学案设计)
Welcome to the unit---by Wesley xu
Teaching objectives:
1. To arouse students’ interest in the unit topic
2. To help students kwon more about cloning technology
3. To encourage students to participate in the discussion relevant to cloning
Teaching focus and difficulties:
1. Make sure that students can have the basic knowledge about cloning.
2. Make sure that each student can hold their ow ions towards cloning.
Teaching aids:
The multimedia
Brief teaching procedures:
Step1 Brainstorming
Summarize the whole text.
Step2 Lead-in
1. Questions:
Why is the word ‘versus’ used here?
Is there any conflict between science and nature?
2. Talk about the great inventions:
The invention of telephone
The invention of bulb
The invention of Mp3 and computers
3. talk about the great discovery----cell
Step3 Picture talking
1. What is so-called “clone”?
Clone means producing an exact copy of an animal or a plant from its own cells.
2. Talk about the latest creation in this part
The mule, the kitten, the five cloned pigs, the cloned money
4. Question:
From these pictures, can you identify the differences between the cloned animals and normal ones?
5. Talk about the famous cloned sheep----Dolly
A short article about Dolly’s birth.
Step 4 Further study about cloning
1. a short video about Dolly’s birth
2. learn sheep cloning, plant cloning, medicine cloning, man cloning through diagrams
Step 5 Discussion
1. What benefits do you think clone can bring to our human beings and the development of the society?
2. What disadvantages can clone bring to our human beings and the development of the society?
Step 6 Writing
1. enjoy a short funny video about a crazy professor and his cloing
2. Writing:
Suppose now you are writing an essay about man cloning. To start it like this:
Dear Editor,
Today our class had a heated discussion about whether we should clone a human baby…
Step 7 Homework
1. preview the reading part
2. do exercises in the Great English Class
