(完整版)Book8Unit2Warmingupandreading
选修八unit2 Warming up精品课件
推理判断
4. The sheep that donated the somatic
cell most probably lived ____ years.
A. 3
B. 6
C. 9
D. 13
5. We can infer from the last three paragraphs that ___. A. The normal development of Dolly had no effect on the cloning of other species. B. Dolly’s serious disease and final death disturbed the whole world. C. There were arguments about animal cloning and concerns about the future of cloning. D. Dolly successfully cloned a new lamb with the help of cloning scientists.
2001 cloning cattle
2002 cloning cats
2002 cloning rabbits
2003 Cloning horse
克隆的荧光小猪(左)和正 2005 cloning dogs 常小猪(右)
The mule in the picture is the world’s first cloned mule. It was born on 4 May 2003. His name is Idaho Gem.
Is it good cloning people?
Oh! My God! I was cloned!
人教选修8 Unit 2Warming up and Reading课件
• Accumulate (Line26) collect
Reading for words
The word “controversial”(Line20) in Para 4 probably means :____________. A. complicated B. arguable C. conservative D. arbitrary
• Undertake (Line8) perform
• Paid off (Line9)
succeed
• Procedure (Line10) stage
• Cast down (Line13) frustrated
• Altogether (Line14) totally; in all
• Attain (Line23) achieve源自AgainstFor
1996 2001
1998
2000
Tibetan Mastiff 藏獒2014
2003
2005
Is it possible to clone myself?
Cloning: Where is it leading us?
The main idea of the text is____. A. The birth of Dolly represented the great development of animal cloning. B. Animal cloning could be misused by evil leaders to clone themselves. C. Animal cloning has raised arguments and scientists are not sure about its future D. Animal cloning is so valuable that it deserves great efforts of the scientists.
人教课标版高中英语选修8Unit2Warmingup and Reading I(共20张PPT)
animals
_q_u_a__li_t_y__ _f_o_r___ __s_a_le__ .
_E_v__il____ _le_a_d__e_r__ may
want to clone themselves.
Cloning plants can be
_u__se_f_u__l for research on __n_e_w___ _p_l_a_n_t_ _s_p_e_c_i_e_s_ .
＊D. Famous persons who have passed away
can be cloned.
4. What is people’s fear about human cloning? Which of the following is wrong?
A. Cloned Hitlers would do harm to the world.
Surf the Internet to find more information about cloning and you are expected to present it to your classmates in the next class.
2.Cloning has _t_w_o__m_a_j_o_r__ uses.
3.The _p_r_o_b_le_m__s_ of Dolly.
4. The _e_ff_e_c_t___ of Dolly.
5. It is _f_o_r_b_id_d__en__ to clone human beings.
Unit 2 Cloning
Warming up ( 5ms )
Look at the following pictures and answer the questions:
人教课标版高中英语选修8Unit2warming up and reading (共16张PPT)
Clone?
Natural clone
Natural clone is one that occurs from the “parent ” in a natural form of cloning without human help.
Man-made clone
Natural clone
Man-made clone
Practice activity: Debate
Are you in favor of cloning or against cloning? What is your point of view on it?
ＶＳ
Homework
1. Translate the procedure of cloning Dolly the sheep into Chinese.
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
2002年5月 中旬成功地 繁殖了一只 胚胎细胞 克隆兔。
2002 cloning cats
2002年4月十六 日美国第一头 克隆牛“艾米” 产下牛犊喜作 妈咪。
2005 cloning dogs
2. Finish the Ex.1, 2, 3 on Page13.
3. Write a short passage about the advantages and disadvantages of cloning. At the end of your passage, you can add your own opinion.
1. What is the main topic? A A. Cloning. B. Dolly the sheep .
高中英语(人教版 选修8)Unit 2 Section_Ⅰ Warming Up - Reading — Pre-reading
Section_ⅠWarming Up & Reading —Prereading 1．What are the advantages and disadvantages of cloning?2．Not only animals but also plants can be cloned. Do you know the difference between them?Please read the following passage to get the answer.A new study of plants that are reproduced by cloning has shown why cloned plants are not identical.Scientists have known for some time that cloned organisms are not always identical: their observable characteristics and traits can vary, and this variation can be passed on to the next generation. This is despite the fact that they are derived (获得) from genetically identical founder cells.Now, a team from Oxford University, the UK, and King Abdullah University of Science and Technology, Saudi Arabia, believe they have found out why this is the case in plants: the genomes (染色体) of regenerate plants carry relatively high frequencies of new DNA sequence mutations (变异) that were not present in the genome of the donor plant.The team reported their findings in this week’s Current Biology.“Where these new mutations actually come from is still a mystery，” said Professor Harberd. “They may arise during the regeneration process itself or during the cell divisions in the donor plant that gave rise to the root cells from which the regenerate plants are created. We are planning further research to find out which of these two processes is responsible for these mutations. What we can sayis that nature has safely been employing what you might call a ’cloning’process in plants for millions of years, and that there must be good evolutionary reasons why these mutations are introduced.”The new results suggest that variation in clones of plants may have different underlying causes from those of variation in clones of animals — where it is believed that the effect of environmental factors on how animal genes are expressed is more important and no similar high frequencies of mutations have been observed.Professor Harberd said, “While our results highlight that cloned plants and animals are very different, they may give us insights into how bacterial and cancer cells replicate themselves, and how mutations arise during these processes which, ultimately, have an impact on human health.”1．How much do are natural clone and manmade clone?Clone_is_a_way_of_making_an_exact_copy_of_another_animal_or_plant.Natural_clone_is_one_that_occurs_from_the_“parent”_in_a_natural_form_of_ cloning_without_human_help.Manmade_clone_is_one_produced_through_human_intervention_(介入)．2．Look at these pictures and tell which ones are natural clones and which ones are manmade clones.Natural_clones：AF；Manmade_clones：BCDE3．See another kind of clone. The two women soldiers look very alike. Can you explain why?They_are_called_twins._They_were_born_almost_at_the_same_time_by_the_same_ mother1．The text is mainly about the procedure of animal cloning and the life of Dolly the sheep，as well as the reasons why cloning is still controversial.2．Read the text and then find the main idea of each paragraph.(1)Paragraph 1 (D) A．The effect of Dolly.(2)Paragraph 2 (B) B．The major uses ofcloning.(3)Paragraph 3 (E) C．People’s reaction tocloning.(4)Paragraph 4 (A) D．The definition (定义)of cloning.(5)Paragraph 5 (C) E．The problem of Dolly.(1)Which of the following statements about cloning is NOT true according to the 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.(2)The cloning of Dolly the sheep succeeded because ________.A．it’s easier to clone a sheep than other animalsB．the scientists were determined and worked hard with patienceC．the scientists were rewarded and got lots of moneyD．many other attempts to clone mammals failed(3)The sheep that donated the somatic cell most probably lived ________ years.A．3 B．6C．9 D．12(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.(5)We can infer from the last three paragraphs that________.A．the normal development of Dolly had no effect on the cloning of other species B．Dolly’s serious disease and final death disturbed the whole worldC．Dolly successfully cloned a new lamb with the help of cloning scientists D．there were arguments about animal cloning and concerns about the future of cloning答案：(1)～(5) ABDDDCloning is a way of 1.making (make) an exact copy of another animal or plant.2.It has two major uses. One is3.that gardeners use it to produce commercial quantities of plants. The4.other is that it is valuable for research on new species and for medical research on animals.5.However,_the process of cloning is difficult to undertake.Many attempts to clone mammals failed. The first successful clone, Dolly the sheep, made the whole 6.scientific (science) world follow its process, though it had 7.more problems than the normal sheep. On the other hand, Dolly’s 8.appearance (appear) raised a storm of objections and had a great impact 9.on the media 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.it.(1)I_am_in_favor_of_cloning,_because_medical_cloning_can_help_humans_cure_serious_illnesses_that_ruin_one’s_quality_of_life.(2)I_am_against_cloning,_because_some_people_may_want_to_clone_themselves_to_l ive_forever,_so_it_will_lead_to_some_social_problems.。
人教版新课标高中英语选修8unit2; warming up and reading课件
Cloning Cloning plants __s_tr_a_i_g_h_tf_o_r_w_a_r_dwhile procedure cloning of animals is _c_o_m__p_li_c_a_te_d_ The first The cloning of_D__o_ll_y_t_h_e__s_h_e_e_p_, a successful _b_re_a_k_t_h_r_o_u_g_h__ in cloning tech.
• Par3: The Problems of Dolly.
• Par4: The effect of Dolly.
• Par5: It is forbiddealse :
1.Four female sheep participate in the
• Some countries continued to _a_c_c_u_m__u_l_a_te_evidence of the abundant medical aid.
The passage tells us that animal cloning raised _a_r_g_u_m__e_n_t_s and scientists are not sure about its__fu_t_u_r_e.
Read the text, then try to find the main idea of each paragraph
effect of the _m_e_d_i_a and public_im__a_g_i_n_a_ti_o_n_.
Dolly the • It opened everybody’s eyes to the
人教课标版高中英语选修8 Unit2 Warming up and Reading (共32张PP
Task 2: Careful Reading
Para 1： The definition of cloning
-It happens both in p__la_n_t_s_ and in_a_n_im__a_l_s.
-They can be cloned byt_h_e_m__se_l_v_e_s_ and
by h__u_m_a_n_s_.
Natural clone
Man-made clone
Task 2: Careful Reading
Para 2: two major uses and the difficulty
1.How many major uses does cloning have? 2.Which of the following about Dolly the sheep
The gardener is going to put it into a pot to produce another plant. He is actually making a copy of the plant.
Twins Natural clone
They are born naturally and are identical in sex and appearance.
it. D. Dolly had characteristics of all three sheep.
Para 2:
1. How many major uses does cloning have?
Two. Firstly, …commercial… Secondly, …research…
Para 2:
Task 1: Global Reading Match the paragraph with the main idea.
高中英语 Unit2 warming-up+ Reading
Scanning
The history of the English language
The road to modern English AD 450- English was based more on _G_e_r_m_a_n_. 1150
AD 800- English became _le_s_s__ like German 1150 Because those who _r_u_l_e_dEngland
Two main groups of English
BrE and AmE
Do you know the difference between B.E and A.E?
Do you have any plan this fall?
What? Do you mean this autumn?
The differences between British English and American English.
In the 17th century.
3. Why does India have a large number of English speakers?
India was ruled by Britain from 1765 to 1947. And during that time English became the language for government and education.
The road to modern English
The road
the development of English language
Para 1: More and more people speak English.
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Pre-reading
What problems may arise when humans are cloned?
People may want to clone themselves so they can live forever. People may want to clone dead children. People may want to clone their favourite pets
rabbits and dogs .
T
5 A parent can clone a child who is dying of a terminal illness ( 不治之症).
F
skimming
What’s the text mainly about?
It’s mainly about cloning arguments about animal cloning and concerns About its future.
3
scanning
Find out the answers in
Para3
the text.
What problems do Dolly have?
She became seriously ill and her illnesses were more appropriate to a much older animal. Dolly lived for six years,half the length of the life of the original sheep.
Do you know about: The procedure works of a sheep?
克 隆 羊 诞 生 图 示
scanning
Para1
Find out the answers in the text.
1.what’s cloning? 2. How do gardeners clone plants?
Pre-reading
How is a clone produced?
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 cloning). The cloning of animals is more complicated. It was not achieved until 1996 and is fully explained in the first reading.
What can you see in the picture?
They are identical in appearance and sex. The smaller one must be a man-made clone of the larger one.
Do you know how Dolly is different from other sheep?
Pre-reading
What benefits can humans gain from cloning?
Medical cloning can help cure serious illneses that ruin one’s quality of life . It can help infertile people have babies.
scanning
Para2
Find out the answers in the text.
1.What two major uses do cloning have?
2. How many female sheep participate in
the cloning of a new sheep?
课题：选修8 Unit2 Cloning
warming up and reading
潍坊滨海中学 单曰坤
Learning aims: 1.Enable the students to
learn about cloning and the life of Dolly the sheep. 2.Enable the students to learn why cloning is controversial. 3.Improve the students reading skill, including the ability of prediction, finding the main idea and reading for full understanding.
Dolly and the Father of Dolly – Ianwilmut
( 伊恩.威尔 姆)
In 1996, the famous sheep “Dolly” was cloned successfully
What is cloning ?
Cloning is a way of making an exact copy of another animal and plant.
F
3 Only strawberries and cactus(仙人
掌) are natural clones .
F
4 Since Dolley ,researcher have cloned
a number of large and small animals
including goats ,cows , mice , pigs, cats,
Listening
T or F questions
1 Clone can be from both natural clone
and man-made clone .
T
2 The sheep, named Kitty was the first
successful clone of a mammal(哺乳动物).