unit2 cloning教学优质课件
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英语：Unit2《Cloning》课件(新人教版选修8)
2.The main idea of the text :
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.
3.The sheep that donated the somatic cell most probably lived ________years.
UNIT TWO READING
CLONING : WHERE IS IT LEADING US
Skimming
Skim the text to find out the answers to the following questions. 1.What is cloning?
Cloning is a way of making an exact copy of another animal and plant.
What’s the greatest success in the development of animal cloning?
.
The procedure of the cloning of Dolly the sheep
True or false:
高中英语选修8Unit2Cloning公开课优质课件
producing the genetic twin of another organism.
The three types of cloning technologies are:
(1) recombinant DNA technology or DNA cloning（基因 重组克隆技术） (2) reproductive cloning（再生克隆技术） (3) therapeutic cloning（干细胞疗法克隆技术）
因此, 人们开始探索用人工的方法来生产高等
动物克隆。这样, 克隆一词就开始被用作动词, 指人 工培育克隆动物这一动作。 目前, 生产哺乳动物克隆的方法主要有胚胎分割 和细胞核移植两种。克隆羊“多莉”, 以及其后各 国科学家培育的各种克隆动物, 采用的都是细胞核 移植技术。
所谓细胞核移植，是指将不同发育时期的胚胎 或成体动物的细胞核，经显微手术和细胞融合方法
how they differ.
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
Can you tell the difference between natural clone and man-made clone? Natural clone is one that occurs in nature Clde clone is one that is produced
Celebrity Sheep Dolly Dolly, the first mammal to be cloned
The three types of cloning technologies are:
(1) recombinant DNA technology or DNA cloning（基因 重组克隆技术） (2) reproductive cloning（再生克隆技术） (3) therapeutic cloning（干细胞疗法克隆技术）
因此, 人们开始探索用人工的方法来生产高等
动物克隆。这样, 克隆一词就开始被用作动词, 指人 工培育克隆动物这一动作。 目前, 生产哺乳动物克隆的方法主要有胚胎分割 和细胞核移植两种。克隆羊“多莉”, 以及其后各 国科学家培育的各种克隆动物, 采用的都是细胞核 移植技术。
所谓细胞核移植，是指将不同发育时期的胚胎 或成体动物的细胞核，经显微手术和细胞融合方法
how they differ.
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
Can you tell the difference between natural clone and man-made clone? Natural clone is one that occurs in nature Clde clone is one that is produced
Celebrity Sheep Dolly Dolly, the first mammal to be cloned
最新人教版高中英语选修8-Unit-2《Cloning》(-Language-points)课件精品
第十三页，共38页。
Choose the best answer.
I can hardly stand his rude manners. I object
______ like a child.
A. to be treated
B. being treated
C. to being treated D. to treat
very clear result.
第十六页，共38页。
Translate the following sentences.
(1) 很难获得(huòdé)可靠的证据。
It is difficult to obtain reliable evidence. (2) 你还可以(kěyǐ)从实践经验中获得知识 。 You can also obtain knowledge through
while的其他(qítā)用法： ① while 用作从属连词，意思为“当…… 时候”，引导时间状语从句。如： While the old man was out, a thief entered the house. Strike while the iron is hot. ② while 用作从属连词，意思为“虽然；尽 管”，引导让步状语从句。如： While I like the color of the mobile phone, I don’t like its shape.
while作并列(bìngliè)连词用，意思为“ 然而”，表示前后意义上的对比或转折 。如： Some people waste food while others don’t have enough. You like sports, while I prefer music.
Choose the best answer.
I can hardly stand his rude manners. I object
______ like a child.
A. to be treated
B. being treated
C. to being treated D. to treat
very clear result.
第十六页，共38页。
Translate the following sentences.
(1) 很难获得(huòdé)可靠的证据。
It is difficult to obtain reliable evidence. (2) 你还可以(kěyǐ)从实践经验中获得知识 。 You can also obtain knowledge through
while的其他(qítā)用法： ① while 用作从属连词，意思为“当…… 时候”，引导时间状语从句。如： While the old man was out, a thief entered the house. Strike while the iron is hot. ② while 用作从属连词，意思为“虽然；尽 管”，引导让步状语从句。如： While I like the color of the mobile phone, I don’t like its shape.
while作并列(bìngliè)连词用，意思为“ 然而”，表示前后意义上的对比或转折 。如： Some people waste food while others don’t have enough. You like sports, while I prefer music.
book8-unit2-CloningPPT课件
3. What benefits can humans gain from cloning？
Medical cloning can help cure serious illnesses that ruin one’s quality of life (such as Parkinson’s disease or Alzheimer’s disease). It can help infertile people have babies.
2002年5月 中旬成功地 繁殖了一只 胚胎细胞 克隆兔。
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。
2005 cloning dogs
Pre-reading
In pairs discuss what you understand about cloning. Then list the questions you want to find out. Share your lists with one another.
scientists are not sure about its future.
ห้องสมุดไป่ตู้
3. Dolly the sheep __B___. A. looked exactly like the sheep that provides the egg. B. was the exact copy of the sheep that provides the nucleus. C. looked like the sheep that gave birth to it. D. had the characteristics of all three sheep.
课件11：Unit 2 Cloning
【归纳拓展】
raise an objection to (doing) sth.对……提出异议 (1) have/make/take/feel an objection to (doing) sth.
对……表示反对 (2) object vi.反对；不赞成；n.物体；目标
object to sb./sth.反对，不赞成某人/某事 object to doing sth.反对做某事 object that-clause 反对…… object to sb. doing sth.反对某人做某事 （3） objective adj.真实的；客观的；无偏见的
for sth.为……负责 that-clause保证…… （2）undertaking n.任务，事业；承诺，答应
【经典例句】
I’ll undertake for your security. 我将保证你的安全。 He undertook to finish the job by Friday. 他答应在星期五以前完成工作。 I can undertake that you will enjoy the trip. 我保证你会喜欢这次旅行。 Will you give me an undertaking not to see that young man again? 你能否给我一个承诺：你不再见那个年轻人？
通常指重复性的行为使（别人）生气。常用被 动语态，表示为某事烦恼、生气。
【核心短语精讲】
1 pay off 得到好结果；取得成功；偿清 But at last the determination and patience of the scientists paid off in 1996 with a breakthrough—the cloning of Dolly the sheep. （教材P11） 但是决心和耐心使科学家们最终于1996年 收获了突破性的结果——克隆羊“多莉”。
高考英语复习-Unit-2-Cloning-市赛课公开课一等奖省名师优质课获奖PPT课件
However
that other
21/56
scientific problems
raised on
where
22/56
23/56
smoking to look
Forbidden from going out
to stay
24/56
returning
25/56
26/56
Owing
owing to
12/56
13/56
14/56
15/56
object to
pay off
in favour of (be)bound to(do) ...
from time to time bring back to life
使沮丧；使失望
使……刻骨铭心 白费劲气；枉费神机
把……归功于……
16/56
to life
27/56
to to
28/56
Owing to owe后加it
owes his success to
29/56
30/56
with to
It
31/56
32/56
bothers it with/about
It bothers me not to It bothers me that
puts me to bother
话题积累 水滴石穿 基础盘点 自我演练 关键点精研 考点讲练
课时规范训练
1/56
2/56
3/56
4/56
5/56
6/56
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straightforward obtain attain accumulate bother
that other
21/56
scientific problems
raised on
where
22/56
23/56
smoking to look
Forbidden from going out
to stay
24/56
returning
25/56
26/56
Owing
owing to
12/56
13/56
14/56
15/56
object to
pay off
in favour of (be)bound to(do) ...
from time to time bring back to life
使沮丧；使失望
使……刻骨铭心 白费劲气；枉费神机
把……归功于……
16/56
to life
27/56
to to
28/56
Owing to owe后加it
owes his success to
29/56
30/56
with to
It
31/56
32/56
bothers it with/about
It bothers me not to It bothers me that
puts me to bother
话题积累 水滴石穿 基础盘点 自我演练 关键点精研 考点讲练
课时规范训练
1/56
2/56
3/56
4/56
5/56
6/56
7/56
8/56
9/56
straightforward obtain attain accumulate bother
课件6：Unit 2 Cloning
解析：D 考查虚拟语气。句意为：如果各国政府和科学 家们不一起合作的话，与艾滋病相关的死亡人数就不会自 2005 年的最高值降下来。根据Had the governments and scientists not worked together可知事情发生在过去，因此 是对过去情况的虚拟，主句用would have done形式。故选 D项。
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答案：①joined to the mainland by a bridge ② Seen from the top of the tower ③make himself heard
3. Could it be solved if corrections were made in their research procedure？
答案：①that you could pick me up at the airport ②that smoking can lead to many illnesses ③that they lacked food ④that we lost our way on a rainy night
2．Based on what we know now, you cannot clone animals that have been extinct longer than 10,000 years.
练习： 单项填空 (1) Had the governments and scientists not worked together， AIDS-related deaths __________since their highest in 2005. A．had not fallen B．would not fall C．did not fall D．would not have fallen
课件1：Unit 2 Cloning
forbid (forbade/forbad，forbidden)
01 02 03 04 05
禁止某人做某事 forbid sb.to do sth.
禁止做某事 forbid doing sth.
禁止…… forbid that... 禁止某人做…… forbid sb.from doing 做某事是禁止的 It’s forbidden to do sth.
_欠__某__人__某__物_________________
The wellknown scientist always
③ says that he owes all his success to
the support of his family. __o_w_e_._.._to_._..__把__…__…__归__功__于__…__…___
12．_a_d_o_r_e____(vt.) 崇拜；爱慕；喜爱 13．_d_i_ff_e_r____(vi.) 不同；相异
_d_i_ff_e_r_e_n_t_(adj.) 不同的 _d_i_ff_e_r_e_n_c_e(n.) 不同；差异 14．_o_b_j_e_c_t ___(vi.) 反对；不赞成 _o_b_j_e_c_ti_o_n_(n.) 不赞成；反对；异议 _o_b_j_e_c_ti_v_e_(adj.) 真实的；客观的；无偏见的 15．_m__e_d_iu_m___(n.) 媒介；手段；工具
巧学活用
(1)用所给词的适当形式填空 ①We object to___b_e_i_n_g_b_l_a_m__e_d__(blame) for something that we haven’t done. ②Unless our manager objects to Tom’s_j_o_i_n_in_g__(join) the club，we shall accept him as a member. ③Despite_____o_b_je_c_t_io_n__s ___(object) by the White House，the Senate voted today to cut off aid.
课件12：Unit 2 Cloning
attain
重点 短语
cast down，object to，in favour of，(be) bound to(do)，owe...to...， pay off，strike...into one’s heart，from time to time，bring back to life，in vain，in good/poor condition
reads，因为是从句的谓语动词，所以不可用reading 或 saying。
第二个空是forbid parking 的转化形式，因为两者之间是动宾
关系，所以应是 Parking forbidden＝No parking意为“禁止
停车”。
【答案】 C
3．object vi.反对，不赞成 归纳拓展 注意：object常与介词to连用，构成短语object to。 object to (sb./sth.)反对(某人/某事) object to doing sth.反对干某事 object to sb. doing sth.反对某人干某事 object that...反对······ I objected that he was too young for the position. 我提出反对意见他太年轻不适合这个职位。
【链接训练】
There is a board by the road ， which ________
“Parking ________ ！”
A．writes；forbidding
B．reading；forbidding
C．says；forbidden
D．saying；forbidden
【解析】 第一个空意为“牌子上写着”，可用says 或
的勇气、奉献及知识”可知答案为B项。owe sth. to sth.意为
高中英语复习PPT课件：M8_Unit_2 Cloning_ 公开课精品课件
5. 使……刻骨铭心
6. 不时；偶尔
7. 使复生；使复活
8. 偿清；取得成功
9. 对……有影响
pay off ____________________ have an impact on ____________________ in good/ poor condition ____________________
3.Cloning scientists were cast down to find
________ Dolly's illnesses were more appropriate to that a much older animal.
whether cloning 4.However, scientists still wonder ________ where it is leading us. will help or harm us and ________
3. object vi. 反对，不赞成 I object to the plan on the grounds that it is too expensive. 我反对该项计划， 理由是花费太大。
objection n. 反对 object to sb. / sth. 反对某人/某事 object to (sb.) doing sth. 反对(某人)做某事 object that 反对…… have / make an objection to (doing) sth. 对……表示反对
things which many people want to own. As we know, cloning has some advantages. It can prevent from the
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Unit 2 Cloning
Reading
Learning aims
1.Talk about cloning.
2.Know the procedure of cloning and the life of Dolly
the sheep and analyze the stucture of this passage
Debate
•Is cloning good or bad?
Advantages of cloning
Cloning plants can be useful for research on new ____ plant _______. species _____
quantitiesof plants Cloning plants can produce large ________ sale for ____. medical research on animals. Cloning is valuable for ________ cures Medical cloning could produce _____for serious illnesses in humans.
natural clone and man-made clone. A natural clone
is one that occurs in nature and a man-made clone
is one that is procured through human
intervention(介入，干预).
animal and plant .(definition)
4 The effect of Dolly. ___.
5 It is forbidden to clone human beings. ___.
3 ___.The problems of Dolly.
How does the cloning of Dolly the sheep work?
Problems of cloning
Animal clones may develop the illnesses _______ of older
animals. younger than the original Animal clones may die _______
animals.
Evil leaders may want to clone themselves. ___ _______ There are moral _____ objections _________to cloning human beings.
3.Have a debate about the advangtages and
disadvantages of cloning
Cloning is a way of making an exact copy of
another animal or plant.It the text fast to give the right order of the main idea of each paragraph.
2 ___.Cloning has two major uses and successful clone.
1 ___.Cloning is a way of making an exact copy of another
• In 1978: The first case of tube infant (试管婴儿 ) appeared.
Look at these pictures and discuss which ones are natural clones and which ones are man-made. Think about how they differ.
• A. Remove the cell’s nucleus • B. Wait until the egg cell with its new nucleus grows into an embryo • C. Put the embryo into another female sheep • E. A cloned lamb is produced • F. Take a cell from the sheep you intend to clone • G. Put the cell’s nucleus into the female sheep’s cell
Reading
Learning aims
1.Talk about cloning.
2.Know the procedure of cloning and the life of Dolly
the sheep and analyze the stucture of this passage
Debate
•Is cloning good or bad?
Advantages of cloning
Cloning plants can be useful for research on new ____ plant _______. species _____
quantitiesof plants Cloning plants can produce large ________ sale for ____. medical research on animals. Cloning is valuable for ________ cures Medical cloning could produce _____for serious illnesses in humans.
natural clone and man-made clone. A natural clone
is one that occurs in nature and a man-made clone
is one that is procured through human
intervention(介入，干预).
animal and plant .(definition)
4 The effect of Dolly. ___.
5 It is forbidden to clone human beings. ___.
3 ___.The problems of Dolly.
How does the cloning of Dolly the sheep work?
Problems of cloning
Animal clones may develop the illnesses _______ of older
animals. younger than the original Animal clones may die _______
animals.
Evil leaders may want to clone themselves. ___ _______ There are moral _____ objections _________to cloning human beings.
3.Have a debate about the advangtages and
disadvantages of cloning
Cloning is a way of making an exact copy of
another animal or plant.It the text fast to give the right order of the main idea of each paragraph.
2 ___.Cloning has two major uses and successful clone.
1 ___.Cloning is a way of making an exact copy of another
• In 1978: The first case of tube infant (试管婴儿 ) appeared.
Look at these pictures and discuss which ones are natural clones and which ones are man-made. Think about how they differ.
• A. Remove the cell’s nucleus • B. Wait until the egg cell with its new nucleus grows into an embryo • C. Put the embryo into another female sheep • E. A cloned lamb is produced • F. Take a cell from the sheep you intend to clone • G. Put the cell’s nucleus into the female sheep’s cell