DNA-The
Secret
of
Life教学设计
课题：
DNA-The
Secret
of
Life
科目：
英语
教学对象：高三学生
课时：
1课时
教师：
单位：
I.
Analysis
of
Teaching
Material
本模块介绍了关于DNA的研究现状、最新成果并对未来这一高科技领域的发展进行展望,进一步激发学生探索生命科学的兴趣,培养学生团结协作的科学素养,帮助学生辨证思考转基因\克隆等高科技发展可能给人类带来的益处和负面效应以及相应的道德挑战.
II.Analysis
of
Students
授课对象为高三年级，学生已经具备了一定的语言基础知识，能用英语表达自己的见解和看法，但学习兴趣和的积极性还有待进一步挖掘。本节课通过小组合作和课堂互动探究，培养学生自主学习能力。
III.The?Aims?of?Teaching
1.语言能力：To
enable
students
master
the
usage
of
new
words
and
expressions
To
guide
the
students
to
get
a
thorough
understanding
of
the
structure
of
the
passage2.学习能力：To
develop
students’
reading
ability
of
scanning
and
skimming
To
improve
students’
analyzing
ability
of
effective
information3.思维品质：To
encourage
students
to
read
the
passage
beyond
the
lines
and
think
about
how
can
we
use
genetic
engineering
properly
4.文化品格：To
motivate
students
interest
in
life
sciences
and
see
genetic
engineering
dialectically
IV.Teaching?Methods:
Task-based
Teaching
Approach
Reading
Inquiry
Cooperation
Discussion
Presentation?
V.?Importance?and?Difficulties?
教学重点：To?guide?the?students?to?comprehend
the
passage
in
general
and
in
details
To
distinguish
facts
and
opinions
教学难点:
How
to
motivate
students
interest
in
life
sciences
and
see
genetic
engineering
dialectically
VI.Teaching
procedures:
Teacher’
activities
Students’
activities
Designing?purpose
Step
1.
Leading
in.What
is
it?
Who
discovered
it?What
does
it
used
for?Lead
in
the
topic---DNA-The
Secret
of
Life
Look
at
the
picture,
answer
some
related
questions
and
predict
what
the
passage
is
about.
1.通过图片激发学生的学习兴趣，和学习动力。2.导入话题
Step
2
ReadingPart
1.Reading
for
main
ideaWhy
did
Watson
and
Crick
say,
“We
have
discovered
the
secret
of
life?”Why
did
the
discovery
of
DNA
is
very
important?
Discovery--influence--benefits
What’s
the
benefit?
PART
2Part2.Reading
for
detailsAsk
students
read
part
2
and
fill
in
the
form
.ADSummarize
the
four
storiesPart
3.Reading
for
deeper
thinkingAsk
students
read
Part3
,answer
four
questions
and
express
their
own
opinions
about
these
for
stories.
Skim
over
Part
1
and
find
what’s
the
secret
of
life.Answer
the
two
questions.Why
did
Watson
and
Crick
say,
“We
have
discovered
the
secret
of
life?”Why
did
the
discovery
of
DNA
is
very
important?
StorywaysbenefitsopinionsABCDFill
in
the
form
about
some
detailed
informationA.How
was
John
Water
judged
guilty?B.How
did
the
couple
have
a
highly
intelligent,good-looking
baby?C.How
did
Mark
be
a
world
champion
again?D.Why
did
the
couple
decide
to
get
rid
of
the
unborn
baby?Conclusion:1.DNA
testing
was
made
a
standard
procedure
in
criminal
investigations.2.Having
been
inserted
an
animal
gene,
Mark
won
all
his
races.3.Having
been
inserted
an
animal
gene,
Mark
won
all
his
races.4.Having
been
tested
that
the
unborn
child
would
have
a
terrible,
inherited
illness,
the
couple
decided
to
get
rid
of
it.Part
3
①.Do
you
think
stories
A—D
in
part
2
are
true?②.What
will
genetic
engineering
help
scientists
to
do
in
the
near
future?③.What
will
happen
if
we
start
choosing
the
characteristics
of
our
babies?④.What
might
the
consequences
be?
1.通过快速阅读，让学生了解part1
的框架大意。2.紧扣主题The
Secret
of
Life--its
benefits?
导入下文。通过让学生填写关于细节信息的表格进一步加深学生对课文内容的理解及细节信息的掌握，增强学生语篇分析能力。用一句话概括故事大意，锻炼学生分析提取有效信息的能力。同时，照应主题，深化理解。引导学生挖掘文本背后所传达的信息，培养学生辩证思维能力和创新思维能力。阐释、分析、判断所获取的相关主题信息,形成自己的观点。学生首先分享文本承载的主题相关表层信息;然后焦文本深层信息,在教师的问题引领下围绕主题展开讨论,并分析语言特点、态度观点等,将自身已有知识经验以及情感与文本主题相结合
Step
3
Language
for
use:DiscussionScience
is
a
two-edged
sword.Are
you
for
genetic
engineering
or
against
it?
Do
you
think
it
is
a
good
thing
or
a
bad
thing?
Reference:For:criminal
investigations
beneficial
to
the
treatment
of
some
illnessanimals
and
plants
that
are
becoming
extinct
agriculture(农业）Against:
nature
an
unexpected
variation
of
genes(基因突变）
law
and
morals
(法律与道德）
ethical
(伦理的）
将所获取的主题相关知识观念迁移运用到新情境。学生通过讨论形成文本,在新的主题情境中运用所阅读的主题信息表达观点并解决实际问题。
Step
4
Homework:
Write
a
passage
about
how
to
use
genetic
engineering
properly
Write
a
passage
about
how
to
use
genetic
engineering
properly,with
the
reference
of
the
Internet,
relevant
books
or
magazines
鼓励并引导学生课下通过多种资源和渠道继续展开基于本节主题的探究,获取与主题相关的学科、生活、社会的综合知识,多维度建构基于该主题的结构化知识。
Blackboard
design.
?
DNA-The
Secret
of
LifePart
1
Discovery
Answer
Part
3
Deeper
Thinkingimportance/influence
Approve：
Benefits?
StorywaysbenefitsopinionsABCDPart
2
Disapprove:
1.
2.
3.
1,
2.
3.
PAGE
7(共13张PPT)
外研版选修九Module2
Reading
and
Vocabulary
DNA-The
Secret
of
Life
Learning
Aims
1.To
master
useful
words
and
expressions
in
the
text
2.To
distinguish
facts
and
opinions
in
critical
reading
3.To
evaluate
how
to
use
genetic
engineering
properly
Part
1
Why
did
Watson
and
Crick
say,
“We
have
discovered
the
secret
of
life?”
the
answer
to
one
of
the
most
important
questions
of
biology---
how
do
living
things
reproduce
themselves?
Why
did
the
discovery
of
DNA
is
very
important?
It
has
already
had
and
will
continue
to
have
an
enormous
influence
on
our
lives.
We
have
already
experienced
the
benefits
in
many
areas.
Story
A
DNA
testing
was
made
a
standard
procedure
in
criminal
investigations.
How
was
John
Water
judged
guilty?
Story
B
Using
a
technology
called
genetic
engineering,
a
couple
had
a
highly
intelligent,
good
–
looking
baby.
How
did
the
couple
have
a
highly
intelligent,good-looking
baby?
Story
C
Having
been
inserted
an
animal
gene,
Mark
won
all
his
races.
Story
D
Having
been
tested
that
the
unborn
child
would
have
a
terrible,
inherited
illness,
the
couple
decided
to
get
rid
of
it.
Summary
1.DNA
testing
was
made
a
standard
procedure
in
criminal
investigations.
2.Having
been
inserted
an
animal
gene,
Mark
won
all
his
races.
3.Having
been
inserted
an
animal
gene,
Mark
won
all
his
races.
4.Having
been
tested
that
the
unborn
child
would
have
a
terrible,
inherited
illness,
the
couple
decided
to
get
rid
of
it.
Part
3
①.Do
you
think
stories
A—D
in
part
2
are
true?
②.What
will
genetic
engineering
help
scientists
to
do
in
the
near
future?
③.What
will
happen
if
we
start
choosing
the
characteristics
of
our
babies?
④.What
might
the
consequences
be?
Part
3
①.Do
you
think
stories
A—D
in
part
2
are
true?
Stories
A
and
D
have
actually
happened
many
times.
Stories
B
and
C
will
become
possible
in
the
near
future.
②.What
will
genetic
engineering
help
scientists
to
do
in
the
near
future?
The
new
technology
of
genetic
engineering
means
that
scientists
will
soon
be
able
to
insert
new
genes
into
unborn
babies,
children
or
adults.
③.What
will
happen
if
we
start
choosing
the
characteristics
of
our
babies?
We
are
altering
nature
in
a
very
direct
way.
④.What
might
the
consequences
be?
It
is
possible
that
we
will
create
two
kinds
of
people,
genetically
engineered
people
and
ordinary
people.
Science
is
a
two-edged
sword.
Are
you
for
genetic
engineering
or
against
it?
Do
you
think
it
is
a
good
thing
or
a
bad
thing?
for
criminal
investigations
beneficial
to
the
treatment
of
some
illnesses
animals
and
plants
that
are
becoming
extinct
agriculture(农业）
against
nature
an
unexpected
variation
of
genes(基因突变）
law
and
morals
(法律与道德）
ethical
(伦理的）
Discussion
Homework评测练习：
DNA-The
Secret
of
Life
Learning
Aims
1.To
master
useful
words
and
expressions
in
the
text
2.To
distinguish
facts
and
opinions
in
critical
reading
3.To
evaluate
how
to
use
genetic
engineering
properly
Part
1
reading
for
main
idea
Why
did
Watson
and
Crick
say,
“We
have
discovered
the
secret
of
life?”
Why
did
the
discovery
of
DNA
is
very
important?
Part
2
Reading
for
details
what's
each
story
about?
Story
A:__________________________________________________
Story
B
:_________________________________________________
Story
C:___________________________________________________
Story
D:____________________________________________________
Story
ways
benefits
opinions
Your
opinions
A
B
C
D
Part
3
Reading
for
deeper
thinking
①Do
you
think
stories
A—D
in
part
2
are
true?
②What
will
genetic
engineering
help
scientists
to
do
in
the
near
future?
③What
will
happen
if
we
start
choosing
the
characteristics
of
our
babies?
④.What
might
the
consequences
be?
Step
3
Discussion
Reading
for
practice
Science
is
a
two-edged
sword.Are
you
for
genetic
engineering
or
against
it?
Do
you
think
it
is
a
good
thing
or
a
bad
thing?
Reference：
for
criminal
investigations
beneficial
to
the
treatment
of
some
illness
animals
and
plants
that
are
becoming
extinct
agriculture(农业）
against
nature
an
unexpected
variation
of
genes(基因突变）
law
and
morals
(法律与道德）
ethical
(伦理的）
