当前位置:首页 >> 英语 >> 公开课课件CLONING

公开课课件CLONING


What is cloning?

Cloning is a way of making an
exact copy of another animal and plant. Who is famous in the cloning field?

Do you know something about Dolly?

/>
Discussion
When was she born? Is she man-made or natural cloning?

When did she die?
How long did she live? Why is she so famous?

How do scientists clone a sheep?

Step 1 A female sheep provides an

egg cell. The nucleus is removed
from the egg cell.

Step 2 A second female sheep provides a somatic cell. The nucleus is also

taken out.

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

joined together using
electricity.

Step 4 The combined cell divides and
grows into an embryo.

Step 5 The embryo is then put into
female sheep C. Finally a

sheep D is cloned.

What animals have been cloned?

sheep, goats, oxen, mice, pigs, cats, rabbits and so on. Can you predict the future of cloning? What will is it leading us?

Unit 2

Cloning: Where Is It Leading Us?

Reading Strategies
1.The better way to get the main idea is:

A: Read the passage sentence by sentence and study the meaning of individual words or sentence if necessary. scan
B: Try to locate a topic sentence in the first, the last or sometimes in the middle paragraph. skim

What is the topic sentence of the first paragraph Cloning has always been with us and is here to stay. What is the topic sentence of the last paragraph?

However, scientists still wonder whether cloning will help or harm us and where is it leading us.

“ be here to stay” is an idiom , which means “ be accepted and used by most people”

主旨大意
1. The main idea of the text is____. A. animal cloning is very valuable and can benefit the world

B. animal cloning could be misused by bad people
so it must be forbidden

C. animal cloning is well developed because Dolly
the sheep was born

D. animal cloning raised arguments and scientists
are not sure about its future

细枝末节
2. Which of the following statements about cloning is NOT true according to text? A. Cloning is something that has been developed quite recently. B. Twins that look exactly the same are originally from the same egg. C. Cloning is used by gardeners to make more money.

D. Animal cloning is much more difficult than plant
cloning.

3. The cloning of Dolly the sheep succeeded

because____.
A. its easier to clone a sheep than other animals

B. the scientists were determined and worked
hard with patience

C. the scientists were rewarded and got lots of
money

D. many other attempts to clone mammals
failed

4.Which of the following is not an advantage of cloning? A. Cloning can be used for medical purposes. B. Large quantities of food can be produced by cloning. C. Cloning can help keep animals from becoming extinct. D. Famous persons who have passed away can be cloned.

推理判断
5. The sheep that donated the somatic
cell most probably lived ____ years. A. 3 B. 6 C. 9 D. 12
When we come across questions that require us to infer , imply or conclude from the passage , remember to :____________ A. infer unknown facts from known facts B. use the direct information from the text

Reading – III Detail reading ( 8ms ) Fill in the blank using the information from the text.

1. Cloning not only happens in _____________, but also plants in ____________. animals
major uses 2. Cloning has two _______ _______. First , it can help gardeners produce___________ commercial ___________ _______ ___________. quantities of plants new Second, it is valuable for research on _________ plant _________species ________and for medical research on ____________. animals straightforward Cloning plants is ____________ while cloning animals complicated is very ______________.

followed the progress 3.The whole scientific world _______ ________ ________ of Dolly. At first, the fact that Dolly seemed develop normally _____was encouraging very _______________ . cast down Later, cloning scientists were _________ _________ to illnesses appropriate find that Dolly’s _________ were more _____________to a much older animal.
controversial 4. Cloning became __________.Using cloning to Cure serious illnesses _____ _____ ______.

____

What do you think is the writer’s point of view in this reading passage? Is it in favour of cloning or against it? impartial /neutral I think the writer is __________ because he/she does not state any personal ____________________________________ opinion about cloning. _________________________

Is cloning good or bad for us ? Write down your idea

A

B

A: I think cloning B: I think cloning is good for us. is bad for us. Because… Because…

Describe the picture in your own words

Pair Work
Watch the movie and discuss
What is your opinion of cloning human?

Homework
Write a passage titled Is cloning good or bad? Your passage should include the following: 1)What is cloning 2)Advantages of cloning 3)Disadvantages of cloning 4)Your opinion of it


更多相关文档:

2014.10.21.教学公开课

Encourage students to share their sources relevant to cloning technology with ...2014届高三作文教学课件... 15页 1下载券 2014年秋二年级语文公开... 暂无...

2015全国优质教育科研成果-课件奖

Cloning:Where 一等奖 is it leading us 河北省沧州渤海新区南大 《Unit2 What...教育科研成果课件优质课... 暂无评价 1页 免费 第三届全国教育科学研究......

教案

课件专区分享让你的课堂更精彩同系列文档 幼班教师寄语...我的公开课——4.26公开课... 2页 免费 学案unit...2.The problems created by cloning will soon be...

M5U3Reading课件

M5U3Reading课件_英语_高中教育_教育专区。M5U3教案 公开课教案课 班题: 级 ...cloning. Reading the two letters Give students several minutes to pick out ...

阅读课例

阅读公开课(不错) 46页 免费 阅读课例系列 暂无评价...Unit2《Cloning》选修8 38页 免费 英语阅读猜词训练...根据自己的课堂教学设计制作了与此相一致的课件, 的...

Jurassic Park 公开课学案

高二选修6 Jurassic park 公开课课件配套学案 Jurassic Park-Scientific Fact or ...the scientific truth behind dinosaur cloning in Jurassic Park C. the ...

Book 8 Unit 2 Cloning 公开课教案

搜 试试 7 帮助 全部 DOC PPT TXT PDF XLS 百度文库 教育专区 高中教育 ...Book 8 Unit 2 Cloning 公开课教案 暂无评价|0人阅读|0次下载|举报文档 Book...

模块5第3单元阅读导学案公开课

搜 试试 7 帮助 全部 DOC PPT TXT PDF XLS 百度文库 教育专区 小学教育 ...Cloning is breakthrough. a wonderful (3) ___ Cloning would (4) ___ more...

Unit 2 P1 教学设计-公开课-优质课(人教选修8精品)

搜试试 3 帮助 全部 DOC PPT TXT PDF XLS ...Unit 2 P1 教学设计-公开课-优质课(人教选修8精品...and summary of CLONING:WHERE IS IT LEADING US?...

Unit 2 Cloning

公开课 Unit2 Cloning 28页 5财富值 unit2cloning(kejian) 41页 免费 cloning课件 26页 免费 Unit2 Cloning 10页 免费 高中英语 Unit2《Cloning》... 40页 ...
更多相关标签:
cloning课件 | 诫子书公开课课件 | 补写句子公开课课件 | 高三英语公开课课件 | 长城课件公开课 | 比尾巴公开课ppt课件 | 天上的街市公开课课件 | 风娃娃公开课ppt课件 |
网站地图

文档资料共享网 nexoncn.com copyright ©right 2010-2020。
文档资料共享网内容来自网络,如有侵犯请联系客服。email:zhit325@126.com