人教版选修8unit2_cloning--_reading(公开课课件)
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人教课标版高中英语选修8Unit2 Reading(共19张PPT)
3.Cloning animals is as complicated as cloning plants. F
4. Dolly the sheep was the first successful clone of a
mammal.
T
5.Natural clones happen in animal as will as in plants. T
1. The main idea of the text is ___D___ 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
“straightforward” means __A__.
ቤተ መጻሕፍቲ ባይዱ
A. uncomplicated B. honest
C. frank
D. difficult
4. Which of the following is not an advantage of cloning? D
A. Cloning can be used for medical purposes. B. Large quantities of food can be produced
Dolly the sheep
She was cloned while the others were born naturally. It is the copy of another sheep.
人教版高中英语选修八《Unit 2 Cloning》Reading 课件 2
Therapeutic (治疗的) cloning is to produce a healthy copy of a s_ic_k_ person’s tissue (肌肉 组织) or organ for transplant in order to save the lives of those who would d_ie__ without it. This t_ec_h_n__iq_u_e_ would be many times better than r_el_y_i_n_g_ on organ transplants from other people. The tissue or organ would have the sick person’s original DNA.
the sheep, all of the following are
true EXCEPT ___C__.
A. the lamb is the clone of the donated cell from sheep B
B. electricity is needed C. female sheep B provides an egg cell D. three female sheep are used
1) Cloning means making a copy of an animal or a plant.F
2) Gardeners can make a lot of money by cloning plants. T
3) Cloning animals is as complicated as cloning plants. F
4) Dolly the sheep was the first successful clone of a mammal. T
高中英语 Unit 2 Cloning reading cloning课件1 新人
Do you know that: Dolly’s successful clone & its dying young encourage the scientific world to follow the progress !
Object to cloning in their own ways
CLONING
•Expository writing: 说明文
definition定义
uses用途
future前景
cloning
impact反响
level水平 procedure原理
Clone?
Natural clone
Natural clone is one that occurs from the “parent ” in a natural form of cloning without human help.
Man-made clone
Man-made clone is one
produced through human intervention(介入) .
BACKGROUND:
• AD5000：grain seed selection （谷物选种）
• In 1952：Clone tadpole（克隆蝌蚪） • In 1972： Gene replication （基因复制） • In 1978： 1st test-tube baby（试管婴儿） • In 1997：1st mammal Dolly（多利羊） • In 2000：Clone monkey
（人类近亲被克隆） • In 2001：Clone Humans? （克隆人？）
Do you know about: What is it that make this dream achieved?
人教课标版高中英语选修8Unit2Reading上课课件(19张)
NO. The first three are man-made clones,the rest two are natural clones.
Fast-reading Skim the passage and match the main idea of each paragraph.
_2__.Cloning has two major uses and
Reading
Where is it leading us?
Book 8 unit 2
Look at the following pictures and answer the questions: 1. It’s the most famous sheep in the world. Do you know how Dolly is different from other sheep?
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
the procedure of cloning. _1__.The definition of cloning
_4__.The impact of Dolly. _5__.The attitudes towards cloning _3__.The problems of Dolly.
1.The main idea of the text is____
Fast-reading Skim the passage and match the main idea of each paragraph.
_2__.Cloning has two major uses and
Reading
Where is it leading us?
Book 8 unit 2
Look at the following pictures and answer the questions: 1. It’s the most famous sheep in the world. Do you know how Dolly is different from other sheep?
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
the procedure of cloning. _1__.The definition of cloning
_4__.The impact of Dolly. _5__.The attitudes towards cloning _3__.The problems of Dolly.
1.The main idea of the text is____
人教课标版高中英语选修8Unit2 Reading(共19张PPT)
3.Cloning animals is as complicated as cloning plants. F
4. Dolly the sheep was the first successful clone of a
mammal.
TБайду номын сангаас
5.Natural clones happen in animal as will as in plants. T
2020/6/3
6
2001 cloning cattle
2020/6/3
7
Questions about cloning: 1. What is a clone?
A clone is an animal or plant produced naturally or artificially from the cells of another animal or plant and is exactly the same as it.
2020/6/3
13
1. The main idea of the text is ______
D
A. animal cloning is very valuable and can
benefit the world.
B. animal cloning could be misused by bad
D. it is a female sheep
3. In the second paragraph, the word
“straightforward” means __A__.
A. uncomplicated B. honest
C. frank
高中英语 Unit2 Reading课件 新人教选修8
Natural clone Man-made clone
What is cloning ?
Cloning is a way of making an exact copy of another animal and plant.
Para 2 The major uses and procedures of cloning
1. Translate the procedure of cloning Dolly the sheep into Chinese. 2. Finish Ex.1,2,3, Page12.
1996 cloning sheeps
2001 cloning cattle
我国成功繁殖克隆兔 体形要比普通兔大许多
3 Some countries will use cloning in a wise way.
The writer’s attitude towards cloning
A. Objective (be fair) B. Negative (be against it) C. Positive (be in favor of it)
•
Para 3 The problems of Dolly
At first, the fact that Dolly developed _no_r_m_a_ll_y in a natural way was _e_nc_o_u_ra_g_in_g__.
Later, the news __th_a_t _she lived for six years, half the length of the life of the _o_rg_in_a_l _ one was _d_i_st_u_rb_in_g___.
What is cloning ?
Cloning is a way of making an exact copy of another animal and plant.
Para 2 The major uses and procedures of cloning
1. Translate the procedure of cloning Dolly the sheep into Chinese. 2. Finish Ex.1,2,3, Page12.
1996 cloning sheeps
2001 cloning cattle
我国成功繁殖克隆兔 体形要比普通兔大许多
3 Some countries will use cloning in a wise way.
The writer’s attitude towards cloning
A. Objective (be fair) B. Negative (be against it) C. Positive (be in favor of it)
•
Para 3 The problems of Dolly
At first, the fact that Dolly developed _no_r_m_a_ll_y in a natural way was _e_nc_o_u_ra_g_in_g__.
Later, the news __th_a_t _she lived for six years, half the length of the life of the _o_rg_in_a_l _ one was _d_i_st_u_rb_in_g___.
人教课标版高中英语选修8Unit2Reading (共21张PPT)
successful?
1996
3. Why it was regarded as a breakthrough?
Because scientists finally got the
technology to clone an animal
though it was a very complicated
Dolly lived for six and a half years, half the length of the life of the original one.
2020/6/7
10
Para 4: The attitudes towards Dolly’s appearance
1. The word “controversial” in Para 4 probably
and difficult task to undertake.
2020/6/7
9
Para 3: The problems of Dolly
About Dolly the sheep
Encouraging news: Dolly developed __n_o_r_m_a_l_ly__. Disturbing news:
2020/6/7
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To get Main idea of each paragraph
Para 1: _D_e__fi_n_i_ti_o_n__ of cloning Para 2: _U_s__e_s_a_n__d_p__ro__c_e_d_u_r_e__of cloning Para 3: __P_r_o_b_l_e_m__s__ of Dolly Para 4: _A_t_ti_t_u_d_e_s_ towards Dolly’s appearance Para 5: _R_e_a_c_t_i_o_n_s__ to prospects of cloning
人教课标版高中英语选修8Unit2 Reading 课件 (共27张PPT)
Dolly the sheep Man-made clone
A strawberry plant Natural clone
一株草莓依靠它沿地“爬走”的匍匐 茎, 一年内就能长出数百株草莓苗。
Growing new plants Man-made clone
Twins Natural clone
It was born in December 2002.
The mule in the picture is the world’s first cloned mule. It was born on 4 May 2003. His name is Idaho Gem.
These female pigs are also cloned. They are born on Christmas Day 2001. They are Noel, Angel, Star, Joy and Mary.
Can you tell the difference between natural clone and man-made clone?
Natural clone is one that occurs in
Clone nature without human help.
Man-made clone is one that is produced through human intervention (介入).
Dolly是世界上第一 例用体细胞——乳 腺上皮细胞，通过 细胞核移植技术， 在复杂的人工操作 下，得到的一只小 绵羊。
Dolly is together with her mother.
The kitten in the picture is called Cc. Its name is from “Copycat”.
人教课标版高中英语选修8Unit2 ReadingPPT课堂课件(19页)
Questions about cloning: 1. What is a clone?
A clone is an animal or plant produced naturally or artificially from the cells of another animal or plant and is exactly the same as it.
人 教 课 标 版 高中英 语选修 8Unit2 R eadi ngPPT课 堂课件 (19页 )（ -精精品品P）PT课件
人 教 课 标 版 高中英 语选修 8Unit2 R eadi ngPPT课 堂课件 (19页 )（ -精精品品P）PT课件
2. The lamb is the clone of the cell from sheep
5. It can be inferred from the passage that a cloned animal__C___. A. usually lives as long as the original one B. usually lives longer than the original one C. usually dies earlier than the original one D. is usually as healthy as the original one
What do you know about twins?
A strawberry plant
The new plants that grow from the runners are exact copies of the original plant.
It’s the most famous sheep in the world. Do you know how Dolly is different from other sheep?
A clone is an animal or plant produced naturally or artificially from the cells of another animal or plant and is exactly the same as it.
人 教 课 标 版 高中英 语选修 8Unit2 R eadi ngPPT课 堂课件 (19页 )（ -精精品品P）PT课件
人 教 课 标 版 高中英 语选修 8Unit2 R eadi ngPPT课 堂课件 (19页 )（ -精精品品P）PT课件
2. The lamb is the clone of the cell from sheep
5. It can be inferred from the passage that a cloned animal__C___. A. usually lives as long as the original one B. usually lives longer than the original one C. usually dies earlier than the original one D. is usually as healthy as the original one
What do you know about twins?
A strawberry plant
The new plants that grow from the runners are exact copies of the original plant.
It’s the most famous sheep in the world. Do you know how Dolly is different from other sheep?
人教课标版高中英语选修8Unit2Reading (共19张PPT)
and public imagination. Different people have different opinions on it. However, scientists still wonder whether
cloning will help 10. or harm us and where it is leading us.
The cloning of plants is
simple and relatively easy. It
can be done by taking
cuttings (man-made cloning)
or letting the plant produce
its own runners (natural
2.What problems may arise when humans are cloned?
1) People may want to clone themselves so they can live forever.
2) People may want to clone dead children.
another animal or plant. 2. It has two major uses. One is 3.
_th_a_t_ gardeners use it to produce commercial quantities of
plants. The 4. other is that it is valuable for research on new species and for medical research on animals. 5. However, the