高二英语新课标选修八Unit 2 Cloning 全单元教案
活动策划方案-关于习惯的作文
玉燕中学2009-2010学年度高中英语组教案
Unit 2 Cloning
The First Period Warming Up, Pre-reading
and Reading
Teaching goals教学目标
1. Target
language目标语言
a. 重点词汇和短语
clone，commercial，
producer，undertake，arbitrary，object，forbid，accumul
ate，
cast down，object to，the media，in favour of
b. 重点句子
It is a way of….
The fact is
that….
The question that occurred is….
2.
Ability goals能力目标
Enable the students to
describe cloning: What is the advantages of
cloning？ What is
the problems or dangers of
cloning？What is your opinion of cloning？
3.
Learning ability goals 学能目标
Help the students
learn how to describe cloning.
Teaching
important points 教学重点
How to describe
cloning.
Teaching difficult point 教学难点
Help the students analyze the writing
techniques of the article.
Teaching methods
教学方法
Skimming, task-based method and debate
method.
Teaching aids 教具准备
A recorder, a
projector and some slides.
Teaching
procedures & ways教学过程与方式
Step I Lead-in
Show picture on the screen, ask the student to
talk about the pictures, pay attention to
the
word clone. Ask the students to discuss which ones
are natural clones and which
ones are man –
made and explain how they differ.
Then ask the
student to answer the following questions:
1.
Do you want to be cloned or not? Why?
2. If
you are the judge what will you do?
3. Can you
tell me the advantages of cloning?
4. And what
is the disadvantage?
Step II Pre-reading
Before class, ask the students to search for
some information about this topic, then let
them discuss the following questions:
1.
What is a clone?
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2. How is a clone
produced?
3. What benefits can humans gain
from cloning?
4. What problems may arise when
humans are cloned?
5. Should we clone human?
6. Could cloning replace sex as the means of
creating new human life?
7. Could a parent
clone a child who is dying of a terminal illness?
Step III While- reading
Find out the main
idea of each paragraph.
Para. 1 Cloning is a
way of making an exact copy of another animal and
plant.
Para. 2 Cloning has two major uses.
Para. 3 The problems of Dolly.
Para. 4 The
effect of Dolly.
Para. 5 It is forbidden to
clone human being.
Step IV Post-reading
Ask the students to read the passage again to
finish these tasks.
1. What are the problems
or dangers of cloning?
2. What are the
advantages of cloning?
3. What is the writer‟s
opinion? What do you think is the writer‟s point
of view in this
reading passage? Is it in
favour of cloning or against is?
4. What is
your opinion of cloning? Give the reasons.
Step V Explanation
1. It is a way of
making an exact copy of another animal and plant.
它是一种精确复制另一个动物或植物的方式。Here a way of means a
manner of 一
种……的方式。
2. Dolly‟s appearance
raised a storm of objections and had a great
impact on the
media and public imagination. In
this sentence, raise means lead. (引起导致)。全句
意思是：
多利的出现引起一场反对风暴，并且对媒体和公众思想产生了很大的冲
击。
3.
However, scientists still wonder whether cloning
will help or harm us and where
it is leading
us. “whether cloning will help or harm us”, “where
it is leading us” is the
objects of the word
“wonder”
全句意思是：科学家一直致力于研究克隆到底会有
助于我们还是会伤害我们，它们将我们引向何方。
Step VI Homework
Ask the students to do
the following.
1. Complete the exercises on
page 13.
2. Recite the key sentences in the
text.
3. What is Cloning? You might not
believe it, but there are human clones among us
right now. Have you ever wished you could have
a clone of yourself to do homework
while you
hit the skate park or went out with your friends?
Imagine if you could really
do that. Where
would you start?
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The Second Period Vocabulary and Useful
Expressions
Aims:
1. Enable the Ss to
grasp the words of cloning.
2. Get the Ss to
master some useful expressions.
Contents:
1. differ v.
1) “To be dissimilar or
unlike in nature, quality, amount, or form”
eg：Ambition differs from greed.
2) “To be
of a different opinion; disagree”
eg：The
critic differed with the author on several facts.
2. exact adj. “Strictly and completely in
accord with fact; not deviating from truth or
reality”
eg：an exact account; an exact
replica; your exact words.
3. commercial adj.
1) “Of or relating to commerce” 2) “Engaged in
commerce‟
eg：a commercial loan; a commercial
attaché; a commercial trucker.
4.
straightforward adj. 1) “honest‟ 2) “easy to
understand”
eg: a ~ explanation; written in ~
language; a ~ problem in algebra
5. procedure
n.
1) „A manner of proceeding; a way of
performing or effecting something‟
eg：complained to the manager, and by this
procedure got the money back.
2) “A series of
steps taken to accomplish an end”
6. undertake
v.
1) “To take upon oneself; decide or agree
to do”
eg：undertake a task.
2) “To pledge
or commit (oneself) to‟
eg：undertake oneself
to care for an elderly relative.
7.
breakthrough n.
1) “An act of overcoming or
penetrating an obstacle or restriction.”
2) „A
military offensive that penetrates an enemy's
lines of defense‟
eg: a ~ in cancer research
8. disturb v. “break the quiet, calm and
peace‟
eg: She opened the door quietly so as
not to disturb the sleeping boy.
Don‟t ~
the papers on my desk.
9. arbitrary adj.
1) “Determined by chance, whim, or impulse,
and not by necessity, reason”
eg：stopped at
the first motel we passed, an arbitrary choice;
arbitrary division of the
group into halves.
2) “Based on or subject to individual judgment
or preference”
eg：The diet imposes overall
calorie limits, but daily menus are arbitrary.
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10.
altogether adv.
1) “Entirely; completely;
utterly”
eg：lost the TV picture altogether; an
altogether new approach.
2) “With all included
or counted; all told”
eg：There were altogether
20 people at the dinner.
11. objection n. “The
act of objecting”
eg: He has a strong ~ to
getting up early.
12. moral adj.
1) “Of
or concerned with the judgment of the goodness or
badness”
eg：moral scrutiny; a moral quandary.
2) “Teaching or exhibiting goodness or
correctness of character”
eg：a moral lesson.
13. forbid v.
1) “To command (someone)
not to do something”
eg：I forbid you to go.
2) “To command against the doing or use of
(something); prohibit”
eg：forbid smoking on
trains.
The Third period
Speaking and Writing
Teaching Goals:
te
the Ss to show their opinions about the cloning
2. Enable the Ss to write an article on this
debate.
3. Let the Ss focus on the different
attitude towards cloning technology
4. Teach
Ss how to get specific information.
Target
Language:
Debate, issue, competition, in
charge, topic, argument, reply to, summarize,
profitable,
donate, existence, embryo,
justified, transfer, ethically, Cloning, attitude,
medicine,
organ
I suggest that medical
cloning is very important of curing serious
illnesses that at
present have no cure.
I
would like to suggest that medical cloning is not
as simple an issue as my colleague
claims.
I agree with …
How would you do…?
Do
you think …?
Teaching important & difficult
points:
How to organize the debating materials
How to write a short composition of the debate
Teaching methods
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Task-
based teaching method
Teaching aids
A
computer and a projector
on
1.
Greetings
2. Check the homework and ask the Ss
to speak out their opinion about the medical
cloning
Step 2 Discussion
Discuss how
we should behave towards the human clones.
1.
How would you treat human clones?
2. Do you
think they should have legal and political rights,
such as getting married or
voting?
3. Do
you think they are separate people or part of the
donors?
Step 3 Speaking task
Debating
Should we clone?
Center on the subject: Why
should we use cloning?
Organize main ideas
that support your point of view
List your own
idea
Make a conclusion
Notes for debating:
Argument for cloning:
1) Cloning will be
beneficial to humans, For example, if a couple
can‟t have
children, cloning could help give
them a child;
2) We could use cloning to cure
illnesses.
Arguments against cloning
1)
healthy risks form mutation of genes
2)
emotional risks
3) against nature
4) risk
of abuse of the technology
5) Cloned animals
get ill and die quite young;
6) People are
afraid of that scientists will create sands of
copies of the same person
7) Cloning is
dangerous because scientist may create monsters by
mistakes.
Step 4 Writing
Write around 250
words on the debate. Organize your writing in this
way:
Paragraph1: the topic of the debate and
who won
Paragraph2: the ideas of the winning
side
Paragraph3: the ideas of the other side
Paragraph4: conclusion and your reaction to
the debate, together with any idea you
feel
they left out.
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The
Fourth Period Extensive reading
Teaching aim:
language
a. 重点词汇
debate, issue,
competition, in charge, topic, argument, reply to,
summarize, profitable,
donate, existence,
embryo, justified, transfer, ethically.
b.
重点句子
I suggest that medical cloning is very
important of curing serious illnesses that at
present have no cure.
I would like to
suggest that medical cloning is not as simple as
issue as my colleague
claims.
2. Ability
goals能力目标
train the students‟ reading
ability
2. To make the students know something
about the dinosaurs..
Key and difficult
points:
To understand the passage as a whole.
Teaching procedure:
Step I Revision
1. Dictation
2. Read the new words
again.
Step II. Warming up
Do you think
it is possible to clone dinosaurs?
If
not,why?
If yes, do you think that‟s good
for human beings? Why?
Step III. Reading
Scanning (TF)
1. Scientists are still
experimenting with cloning mammals because they
think it
can make money.
2. The animals
that have disappeared from the earth, like
dinosaurs, can be
brought back to life through
cloning.
3. If we can clone any extinct
animals, we should let them live in a zoo.
Detail reading
1. Why shouldn‟t you clone
an extinct animal if there isn‟t enough diversity
in the
group?
is it wrong to clone an
extinct animal if it would have to live in a zoo?
can‟t you clone the DNA of animals that have
been extinct longer than
10,000 years?
4. Why it is either impossible or unsuitable
to clone extinct animals
Step IV. further
understanding
1. The writer of the text_____
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A. is
excited by the possibility of cloning fierce and
extinct animals
B. believes that
extinct animals can be brought back to life by
cloning
C. thinks it impossible or unsuitable
to clone extinct animals like dinosaurs
D.
dreams of dinosaurs returning to the earth
2.
The film Jurassic Park is popular because _____.
A. people are interested in the subject of
cloning
B. all the actors are dinosaurs
C. it
was directed by a scientist who clones dinosaurs
D. it proves very interesting
3. Which
of the following is true? ____
A. Mice were
cloned in 1981.
B. Dolly the sheep was the
first cloned animal.
C. The name of the cloned
cow is “Bison”
D. China was successful in
cloning mammals.
4. The reasons why a group of
cloned animals all die of the same illness do NOT
include____.
A. they have the same arrangement of genes
B. there isn‟t enough diversity in the group
for it to overcome illnesses
C. the illness is
a new one
D. their arrangement of genes can
not resist that new disease
5. We can infer
from the text that____
A.
scientists are experimenting to clone dinosaurs
B. dinosaurs will never return to the earth
C. cloned animals will only live in the zoo
D. the DNA of dinosaurs can only survive 10
000 year
Step V Explanation
1. The
popularity of films such as Jurassic Park, in
which a scientist clones several
kinds of
extinct dinosaurs, proves how the idea struck a
mixture of fear and
excitement into people‟s
heart. in which引导定语从句, how引导宾语从句
stick…in to
one‟s heart: 使……刻骨铭心
The accident struck the
fear into his heart.
2. From time to time
people suggest that the animals that have
disappeared from the
earth, like dinosaurs,
can possibly be brought back to life through
cloning.
人们时常设想从地球上消失的动物,例如恐龙,有可能通过克隆技术使它们复活。
from
time to time有时, 间或, 偶尔,= occasionally, now and
then
They came to see us from time to time.
bring back to life使复生，使复活
No one would
bring the dead person back to life.
3. It
would be unfair to clone any extinct animal if
they would have to live in a zoo.
如果你克隆出任何绝种动物，而它们必须生活在动物园里那是不公平的。
当动词不定式、动名词或从句作主语时, 通常把它们放在谓语之后,
而用it作句
子的形式主语。
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4. All efforts of
cloning an animal will be in vain if there is not
enough diversity in the
group to overcome
illnesses.
如果某个动物群体里没有足够的多样性以战胜疾病，那么克隆这种动物的所有努
力都将是无用的。
in vain: with no result;
useless(ly)
Try in vain to sleep
All our work was in vain.
4. Diversity in a
group means having animals with their genes
arranged in different
ways.
群中的多样性指的是拥有基因排列方式不同的动物。
with their genes
arranged in different ways作定语, in different ways
以不同的
方式。
5. ...but others will survive and
pass on the ability to resist that disease to
their
children. ......其他的将存活下来并传递给其后代抵抗这种病的能力。
resist 作及物动词主要有三个义项:
①抵抗, 对抗;
②抵挡, 防止;
③ 不屈从，经得住
(常与cannot,
could not连用, 无法抗拒, 无法抵挡)
6. Based on what we
know now, you can not clone animals that have been
extinct
longer than 10000 years.据我们现在所知,
绝种一万年以上的动物不能克隆。
base onupon 以……为基础, 依据
其结构为: base sth. onupon
sth. is based
onupon
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