必修五
Unit
1
Great
scientists
Reading
Teaching
Goals:
1.
Enable
the
Ss
to
familiar
with
some
famous
scientists
and
their
contributions.
2.
Enable
the
Ss
to
learn
how
to
organize
a
scientific
research.
3.
Let
the
Ss
learn
the
reading
skill
of
getting
the
main
idea
of
each
para./
part
&
each
passage
.
Difficult
points
1.
How
to
grasp
the
main
idea
of
each
paragraph
/
part
&
each
passage.
2.
How
to
help
the
Ss
use
what
they’ve
learnt
to
do
first
aid
treatment
for
burns
correctly.
Teaching
methods
1.
Skimming
&
scanning
methods
to
make
the
Ss
get
a
good
understanding
of
the
text.
2.
Discussion
methods
to
make
the
Ss
understand
what
they’ve
learned
in
class.
3.
Pair
work
of
group
to
get
every
student
to
take
part
in
the
teaching-and-learning
activities.
4.Competition
and
role-play
method
to
arouse
the
Ss’
interest
Teaching
process:
Pre-class
task:
1.
Preview
new
vocabulary
of
Unit
1,
and
especially
pay
attention
to
the
pronunciation
of
the
new
word
2.
Finish
the
quiz
in
Warming
up(
p1)
in
groups
of
four
by
referring
to
books
or
surfing
the
net.
Step
1
Learning
Goals
Get
Ss
to
go
through
the
summing
up
form
on
p
8
in
order
to
have
a
general
idea
of
the
learning
goals
of
Unit
1
Step
2.
Warming
up
(Group
competition
and
introduce
the
great
scientists)
1.
Check
the
answers
to
the
quiz
to
find
out
which
group
know
the
most
.
2.
Introduce
the
great
scientists.
1)
Archimedes
(287—212
BC)
Ancient
Greek.
He
was
a
mathematician.
He
found
that
if
you
put
an
object
into
water
the
water
pushes
the
object
up.
It
rises
and
partly
floats.
“Give
me
a
place
to
stand
on,
and
I
can
move
the
earth.”
----Archimedes
2)
Charlie
Darwin(1808-1882)
British
naturalist.
The
Origin
of
Species
was
published
in
1859.
It
explained
how
plants
and
animals
had
changed
over
time
to
fit
in
with
a
changing
environment.
His
book
showed
that
people
had
developed
from
apes.
3)
Gregor
Mendel(1822—1884)
Czech.
The
father
of
genetic.
He
grew
pea
plants
and
developed
ideas
on
heredity
(遗传)
and
inherited
characteristics.
Between
1856—1863
he
grew
28,000
pea
plants.
He
examined
seven
kinds
of
seed
and
plant
characteristics
and
developed
some
laws
of
inheritance.
4)
Marie
Curie
(
Polish
)
(1867-1934)
was
born
in
Poland,
moved
to
Paris
and
studied
chemistry
and
physics
there.
She
married
Pierre
Curie
and
together
they
studied
radioactive
materials
and
discovered
radium.
In
1911
she
received
the
Nobel
Prize
in
Chemistry.
Her
death
in
1934
was
almost
certainly
due
to
radiation
in
her
work.
5)
Thomas
Edison(1847----1931)
He
was
already
an
inventor
of
other
electrical
devices
(phonograph,
electric
light
bulb)
when
in
1882
he
designed
a
system
for
providing
New
York
with
electricity
from
a
central
power
station.
This
was
a
tremendous
achievement,
which
had
previously
been
thought
impossible.
6)
Leonardo
da
Vinci
(Italian)
(1452-1519)He
was
a
famous
Italian
artist
whose
skill
for
showing
human
skin
tones
made
his
paintings
seem
to
come
alive.
He
used
to
study
dead
people
in
order
to
make
his
paintings
as
accurate
as
possible.
Some
of
his
famous
paintings
include
“The
Adoration
of
the
Magi”
and
the
“The
Last
Supper”.
Later
in
his
life
he
lived
in
France
where
he
designed
a
submarine
(潜水艇)
and
a
flying
machine.
7)
British.
He
did
research
into
different
gases
and
discovered
the
medical
value
of
nitrous
oxide
(laughing
gas)
as
an
anaesthetic.(麻醉药)
In
1815
he
developed
a
safety
lamp
for
miners.
8)
Zhang
Heng,
Chinese(
78-----139)
He
invented
the
first
seismograph
to
indicate
in
the
direction
of
an
earthquake.
It
was
in
the
shape
of
a
cylinder
with
eight
dragon
heads
round
the
top,
each
with
a
ball
in
its
mouth.
Around
the
bottom
were
eight
frogs
directly
under
a
dragon’s
head.
When
an
earthquake
occurred,
a
ball
fell
out
of
the
dragon’s
mouth,
making
a
noise.
9)
Stephen
Hawking,
British(1942---
)
He
has
worked
in
astronomy
and
studied
black
holes
in
space.
He
has
shown
that
black
holes
do
not
only
absorb
everything
around
them
but,
from
time
to
time,
throw
out
matter
as
well.
This
may
mark
the
beginning
of
new
galaxies.
This
is
an
advance
on
the
old
theory
which
said
that
black
holes
“eat”
everything
they
come
across.
Step3
Pre-reading
1.
(Pair
work)
What
five
most
important
qualities
do
you
think
a
scientist
should
have
Give
reasons.
clever/talented
strict
patient
creative
determined/strong-willed
positive
honest
energetic
intelligent/hard-working
ambitious
careful
co-operative
confident
brave
2.
(Group
work)
Ex1,
p1
Do
you
know
how
to
prove
a
new
idea
in
scientific
research
Discuss
in
groups
the
stages
in
examining
a
new
scientific
idea.
What
order
would
you
put
them
in
8)
Draw
a
conclusion
3)
Think
of
a
method
4)
Collect
results
5)
Make
up
a
question
1)
Find
a
problem
5)
Analyse
the
results
6)
find
supporting
evidence
7)
Repeat
if
necessary
Step
4.
Fast
reading
Read
the
text
quickly
and
find
out
the
answers
to
these
two
questions
and
the
main
idea
of
each
paragraph.
1）What
was
the
cause
of
this
disease
2)How
did
John
Snow
find
it
out
Para
1:
the
problem
Para
2:
the
cause----two
theories
Para
3:
the
method
Para
4:
the
discovery
Para
5:
the
result
and
conclusion
Para
6:
the
suggestion
Show
pictures
of
water
pump
and
teach
handle
Careful
reading:
Read
the
text
carefully
and
fill
in
the
chart
(Ex
1,
p3)
Step
5
Careful
reading
1.
Use
the
seven
stages
in
setting
out
a
new
scientific
idea
to
describe
each
paragraph.
2.
answer
the
questions
Who
defeats
“King
Cholera“
What
happened
in
1854
How
many
people
died
in
10
days
in
London
in
1854
Why
was
there
no
death
at
No.
20
and
21
Broad
Street
as
well
as
at
No.
8
and
9
Cambridge
Street
Step
6
Comprehending
Read
the
text
again
to
get
more
details
1.
What
was
the
most
deadly
disease
in
the
19th
century
Why
2.
When
could
the
cholera
be
controlled
3.
What
is
the
problem
4.
What
happened
to
the
pump
water
5.
What
extra
evidence
did
John
Snow
find
Step
7.
Homework
Surf
the
Internet
to
find
out
more
about
cholera.
Write
down
the
important
words
and
phrases
in
your
exercise
book.
Underline
the
difficult
sentences
that
you
cannot
understand.必修五
Unit
1
Great
scientists
Reading
Teaching
contents
(1)
The
second
period
of
this
unit.
This
period
focuses
on
the
reading
passage,
which
is
about
John
Snow
and
King
Cholera.
(2)
Have
a
good
understanding
of
the
text
by
doing
the
exercises.?
(3)
Get
the
students
to
learn
different
reading
skills,
especially
gist
reading
and
comprehending
beyond
lines.
Teaching
aims
(1)
To
help
students
learn
to
describe
people
(2)
To
help
students
learn
to
read
a
narration
about
John
Snow
(3)
To
help
students
better
understand
“Great
scientists”
Teaching
Procedures
I.
Warming
up
Step
I
Lead
in
Talk
about
scientists.
T:
Hi,
morning,
class.
Nice
to
see
you
on
this
special
day,
the
day
when
you
become
a
senior
two
grader.
I
am
happy
to
be
with
you
helping
you
with
your
English.
Today
we
are
to
read
about
a
certain
scientist.
But
first
let’s
define
the
word
“scientist”.
What
is
a
scientist
A
scientist
is
a
person
who
works
in
science,
trying
to
understand
how
the
universe
or
other
things
work.
Scientists
can
work
in
different
areas
of
science.
Here
are
some
examples:
Those
that
study
physics
are
physicists.
Those
that
study
chemistry
are
chemists.
Those
that
study
biology
are
biologists.
Step
II
Ask
the
students
to
try
the
quiz
and
find
out
who
knows
the
most.
T:
There
are
some
great
scientific
achievements
that
have
changed
the
world.
Can
you
name
some
of
them
What
kind
of
role
do
they
play
in
the
field
of
science
Do
these
achievements
have
anything
in
common
Match
the
inventions
with
their
inventors
below
before
you
answer
all
these
questions.
1.
Archimedes,
Ancient
Greek
(287-212
BC),
a
mathematician.
2.
Charles
Darwin,
Britain
(1808-1882).
The
name
of
the
book
is
Origin
of
Species.
3.
Thomas
Newcomen,
British
(1663-1729),
an
inventor
of
steam
engine.
4.
Gregor
Mendel,
Czech,
a
botanist
and
geneticist.
5.
Marie
Curie,
Polish
and
French,
a
chemist
and
physicist.
6.
Thomas
Edison,
American,
an
inventor.
7.
Leonardo
da
Vinci,
Italian,
an
artist.
8.
Sir
Humphry
Davy,
British,
an
inventor
and
chemist.
9.
Zhang
Heng,
ancient
China,
an
inventor.
10.
Stepper
Hawking,
British,
a
physicist.
II.
Pre-reading
Get
the
students
to
discuss
the
questions
on
page
1
with
their
partners.
Then
ask
the
students
to
report
their
work.
Encourage
the
students
to
express
their
different
opinions.
1.What
do
you
know
about
infectious
diseases
Infectious
diseases
can
be
spread
to
other
people.
They
have
an
unknown
cause
and
need
public
health
care
to
solve
them.
People
may
be
exposed
to
infectious
disease,
so
may
animals,
such
as
bird
flu，AIDS,
SARS
are
infectious
diseases.
Infectious
diseases
are
difficult
to
cure.
2.What
do
you
know
about
cholera
Cholera
is
the
illness
caused
by
a
bacterium
called
Vibrio
cholerae.
It
infects
people’s
intestines(肠),
causing
diarrhea
and
leg
cramps
(抽筋).
The
most
common
cause
of
cholera
is
by
someone
eating
food
or
drinking
water
that
has
been
contaminated(污染)
with
the
bacteria.
Cholera
can
be
mild(不严重的)
or
even
without
immediate
symptoms(症状),
but
a
severe
case
can
lead
to
death
without
immediately
treatment.
3.
Do
you
know
how
to
prove
a
new
idea
in
scientific
research
Anybody
might
come
out
with
a
new
idea.
But
how
do
we
prove
it
in
scientific
research
There
are
seven
stages
in
examining
a
new
idea
in
scientific
research.
And
they
can
be
put
in
the
following
order.
What
order
would
you
put
the
seven
in
Just
guess.
Find
a
problem→
Make
up
a
question→
Think
of
a
method→
Collect
results→
Analyse
the
results→
Draw
a
conclusion→
Repeat
if
necessary
III.
Reading
Step
I
Pre-reading
Do
you
know
John
Snow
John
Snow
is
a
well-known
doctor
in
the
19th
century
in
London
and
he
defeated
“King
Cholera”.
Do
you
know
what
kind
of
disease
is
cholera
It
is
a
kind
of
terrible
disease
caused
by
drinking
dirty
water
and
it
caused
a
lot
of
deaths
in
the
old
times
and
it
was
very
difficult
to
defeat.
Let’s
get
to
know
how
Dr.
John
Snow
defeated
“King
Cholera”
in
1854
in
London
in
this
reading
passage:
Step
II
Skimming
Read
the
passage
and
answer
the
questions.
Who
defeats
“King
Cholera“
(John
Snow)
What
happened
in
1854
(Cholera
outbreak
hit
London.)
How
many
people
died
in
10
days
(500)
Why
is
there
no
death
at
No.
20
and
21
Broad
Street
as
well
as
at
No.
8
and
9
Cambridge
Street
(These
families
had
not
drunk
the
water
from
the
Broad
Street
pump.)
(Optional)
Skim
the
passage
and
find
the
information
to
complete
the
form
below.
Who
When
What
How
Result
John
Snow
1854
helping
ordinary
people
exposed
to
cholera
Examining
the
source
of
all
water
supplies
and
finding
new
methods
of
dealing
with
polluted
waster
“King
Cholera”
defeated
Step
III
Scanning
Read
the
passage
and
number
these
events
in
the
order
that
they
happened.
2
John
Snow
began
to
test
two
theories.
1
An
outbreak
of
cholera
hit
London
in
1854.
4
John
Snow
marked
the
deaths
on
a
map.
7
He
announced
that
the
water
carried
the
disease.
3
John
Snow
investigated
two
streets
where
the
outbreak
was
very
severe.
8
King
Cholera
was
defeated.
5
He
found
that
most
of
the
deaths
were
near
a
water
pump.
6
He
had
the
handle
removed
from
the
water
pump.
Step
IV
Main
idea
and
correct
stage
Read
the
passage
and
put
the
correct
stages
into
the
reading
about
research
into
a
disease.
John
Snow
Defeats
“King
Cholera”
Paragraph
Stages
General
ideas
1
Find
a
problem:What
cause
the
cholera
The
causes
of
cholera
2
Make
up
a
question:Which
is
right
The
correct
or
possible
theory
3
Think
of
a
method:Test
two
theory
Collect
data
on
where
people
were
ill
and
died
and
where
they
got
their
water
4
Collect
results:Mark
the
death
Plot
information
on
a
map
to
find
out
where
people
died
or
did
not
die
5
Analyze
the
results:Find
the
resource
of
the
water
Look
into
the
water
to
see
if
that
is
the
cause
of
the
illness
6
Find
supporting
evidence
Find
other
evidences
to
confirm
his
conclusion
7
Draw
a
conclusion
The
polluted
dirty
source
of
drinking
water
was
to
blame
for
the
cause
of
the
London
cholera
Step
V
Group
discussion
Answer
the
questions
(Finish
exercise
2
on
Page
3)
1.
John
Snow
believed
Idea
2
was
right.
How
did
he
finally
prove
it
(John
Snow
finally
proved
his
idea
because
he
found
an
outbreak
that
was
clearly
related
to
cholera,
collected
information
and
was
able
to
tie
cases
outside
the
area
to
the
polluted
water.)
2.
Do
you
think
John
Snow
would
have
solved
this
problem
without
the
map
(No.
The
map
helped
John
Snow
organize
his
ideas.
He
was
able
to
identify
those
households
that
had
had
many
deaths
and
check
their
water-drinking
habits.
He
identified
those
houses
that
had
had
no
deaths
and
surveyed
their
drinking
habits.
The
evidence
clearly
pointed
to
the
polluted
water
being
the
cause.)
3.
Cholera
is
a
19th
century
disease.
What
disease
do
you
think
is
similar
to
cholera
today
(Two
diseases,
which
are
similar
today,
are
SARS
and
AIDS
because
they
are
both
serious,
have
an
unknown
cause
and
need
public
health
care
to
solve
them.
Step
VI
Homework
Use
the
stages
for
scientific
research
and
write
a
summary.必修五
Unit
1
Great
scientists
Reading
1．Teaching
Aims
①Get
Ss
to
improve
their
reading
abilities.
②Let
Ss
know
the
topic
“Great
scientists”
③Know
some
important
phrases
occurring
in
this
reading
2．Teaching
Procedures
Step
1
Lead
in
Check
Ss’
knowledge
about
some
scientists
and
their
discoveries.
①Who
discovered
that
objects
in
water
are
lifted
up
by
a
force
that
helps
them
float
Archimedes
②Who
wrote
a
book
explaining
how
animals
and
plants
developed
as
the
environment
changed
Charles
Darwin
③Who
invented
the
first
steam
engine
Thomas
Newcomen
④Who
used
peas
to
show
how
physical
characteristics
are
passed
form
parents
to
their
children
Gregor
Mendel
⑤Who
discovered
radium
Maries
Curie
⑥Who
invented
the
way
of
giving
electricity
to
everybody
in
large
cities
Thomas
Edison
⑦Who
was
the
painter
that
studied
dead
bodies
to
improve
his
painting
of
people
Leonardo
da
Vinci
⑧Who
invented
a
lamp
to
keep
miner
safe
underground
Sir
Humphrey
Davy
⑨Who
invented
the
earliest
instrument
to
tell
people
where
earthquakes
happened
Zhang
Heng
⑩Who
put
forward
a
theory
about
black
holes
Stephen
Hawking
After
all
the
questions,
then
lead
in
the
passage
with
a
picture.
Ask
ss
if
they
know
the
map
and
what
it
is
used
for.
Give
them
the
answer
later
“It
is
a
map
to
find
out
the
cause
of
Cholera.
”
Step
2
Skim
and
Scan
More
questions
are
given
to
get
the
general
ideas
of
this
passage
and
some
obvious
facts.
Who
defeats
“King
Cholera“
John
Snow
What
happened
in
1854
Cholera
outbreak
hit
London.
How
many
people
died
in
10
days
500
Why
is
there
no
death
at
No.
20
and
21
Broad
Street
as
well
as
at
No.
8
and
9
Cambridge
Street
These
families
had
not
drunk
the
water
from
the
Broad
Street
pump.
Step
3
Reading
for
details
1
Why
couldn’t
the
cholera
be
under
control
at
first
Neither
its
cause,
not
its
cure
was
understood.
2
Which
theory
did
John
Snow
believe
in
People
absorbed
cholera
into
their
bodies
with
their
meals.
3
John
Snow
finally
proved
the
theory
he
believed
by
________.
gathering
information
with
the
help
of
a
map
looking
into
the
source
of
the
water
for
Broad
Street
and
Cambridge
Street
Separating
those
who
suffered
cholera
from
those
who
didn’t
Both
A
and
B
(right
choice)
4
To
prevent
the
cholera
from
spreading
again,
what
did
John
Snow
do
Suggested
that
the
source
of
all
water
supplies
be
examine.
Suggested
that
new
methods
of
dealing
with
polluted
water
be
found.
Instructed
the
water
companies
not
to
expose
people
to
the
polluted
water
anymore.
Step
4
Mind
map
of
the
passage
Paragraph
1:
Introduction
of
John
Snow
and
Cholera
Paragraph
2:
Two
theory
Paragraph
3-5:
Study
of
the
breakout
in
1854
Paragraph
3:
Think
of
a
method:
Test
two
theory
Collect
the
result:
Mark
the
death
Analyze
the
result:
Reason
for
death
and
no
death
Paragraph
4:
Analyze
the
result:
Find
the
resource
of
the
water
Paragraph
5:
Repeat
if
necessary:
Find
more
evidence.
Draw
a
conclusion:
Cholera
was
spread
by
germ
Polluted
water
carried
cholera
Paragraph
6:
Prevention
of
Cholera
Step
5
Retell
the
passage
Provide
Ss
with
a
summary
with
some
blanks.
Let
them
retell
the
passage
as
well
as
pay
attention
to
some
important
words.
Read
the
passage
again
and
fill
in
the
blanks:
John
Snow
was
a
well-known
____
in
London
in
the
___
century.
He
wanted
to
find
the
______
of
cholera
in
order
to
______
it.
In
1854
when
a
cholera
____
out,
he
began
to
gather
information.
He
_____
on
a
map
where
all
the
dead
people
had
lived
and
he
found
that
many
people
who
had
drunk
the
dirty
water
from
the
______
died.
So
he
decided
that
the
polluted
water
carried
cholera.
He
suggested
that
the
_____
of
all
water
supply
be
_______
and
new
methods
of
________
with
polluted
water
be
found.
Finally,
“King
Cholera”
was
defeated.
Step
6
Homework
Read
the
whole
passage
and
retell.
Go
to
the
net
to
get
more
information
about
UK.必修五
Unit
1
Great
scientists
Reading
Teaching
aims
1
.Knowledge
Aims
Have
a
good
understanding
of
the
text
by
doing
the
exercises.
2.
Ability
Aims
1).
Grasp
some
reading
skills.
2).
Develop
the
ability
to
describe
some
famous
scientists.
3.
Emotional
Aims
Encourage
the
students
to
work
hard
at
their
lessons
in
order
to
devote
themselves
to
science.
Teaching
Important
Points
1.
Have
a
good
understanding
of
the
text
by
doing
the
exercises.
2.
Get
the
students
to
learn
different
reading
skills,
especially
gist
reading
and
comprehending
beyond
lines.
Teaching
Difficulties
1.
Know
the
meanings
between
lines
and
beyond
lines.
2.
Learn
different
reading
skills
for
different
reading
purposes.
Teaching
Aids
CAI
equipment
with
a
multi-media
classroom
and
other
normal
teaching
tools.
Teaching
Procedure
Step
Ⅰ
Greeting
&
Revision
Check
the
homework.
Step
Ⅱ
Lead
in
Step
Ⅲ
Fast
Reading：
Read
the
passage
as
quickly
as
you
can
to
find
out
the
answers
to
the
questions
on
the
screen
1.
What
were
the
artists
interested
in
from
5th
to
15th
century
AD
Creating
_respect_
and
_love_
for
God.
2.
How
did
Masaccio
paint
his
paintings
He
drew
things
in
perspective_,
which
makes
pictures
very
_realistic.
3.
Why
did
the
impressionists
have
to
paint
quickly
Because
the
natural
light
_changes_
quickly,
they
had
to
_paint_
quickly.
Step
Ⅳ
Careful
reading:
Deal
with
exercise
2
on
page
3
True
or
False
1.
Western
art
has
changed
very
little
over
the
last
seventeen
centuries.
F
2.
Painters
in
the
Middle
Ages
painted
mainly
religious
subjects.
T
3.
Paintings
in
the
Middle
Ages
were
very
realistic.
F
4.
Renaissance
painters
tried
to
paint
things
in
a
realistic
way.
T
5.
Two
important
discoveries
in
the
Renaissance
period
were
oil
paints
and
drawing
in
perspective.
T
6.
Impressionists
painted
their
pictures
mainly
indoors.
F
7.
At
first
people
did
not
like
the
impressionists’
paintings.
T
8.
Modern
art
began
with
the
impressionists.
T
Step
Ⅴ
Discussion
Go
through
the
passage
and
analyze
the
characters
of
each
period.
Step
Ⅵ.
Summary
The
style
of
Western
art
has
changed
____
_____
,
while
Chinese
art
has
changed___
____.
Art
is_________
by
the
way
of
____and_______.
During
the
Middle
Ages,
the
main_____
of
painters
was
to
______
_______themes.
Artists
were
_________
____
creating
_______and
_____for
God.
In
the
Renaissance,
people
became_______
more
on
_______and
less
on_______.
Artists
tried
to
paint
_____
and
_______
____they
really______.
Masaccio
used___________
in
his
paintings
which
made
people________
they
were
_______
_______a
hole
in
the
wall
____
a
real
scene.
In
the
late
19th
century,
Europe
changed
__________from
a
mostly_________
society
to
a
mostly_________
one.
The
___________were
the
first
to
paint_______.
They
had
to
paint
______and
their
paintings
were
not
___
_____
___
______of
earlier
painters.
Today
people
accept
___________
________as
the
________
of_______
____.
Some
modern
art
is
_______while
some
is________.
Step
Ⅶ.
Homework
1.
Underline
the
time
expressions
in
the
reading
passage.
2.
Retell
the
passage
with
the
help
of
the
chart
about
the
text.
3.
Discuss
the
questions
in
Ex
3
on
page
3.必修五
Unit
1
Great
scientists
Reading
Teaching
goals
1.
Ability
goals
Enable
the
students
to
talk
about
science
and
scientists.
2.
Learning
ability
goals
Enable
the
students
to
learn
about
some
famous
scientists
and
their
contributions
and
how
to
organize
a
scientific
research.
Teaching
important
&
difficult
points
Talk
about
science
and
scientists.
Teaching
methods
Task-based
activities.
Teaching
aids
A
computer
and
a
projector.
Teaching
procedures
StepⅠ
Lead-in
Ask
the
students
to
think
of
some
great
inventions
and
inventors
in
history.
T:
Welcome
back
to
school,
everyone.
I
guess
most
of
you
have
enjoyed
your
holiday.
Maybe
I
should
say
everyone
has
enjoyed
a
scientific
life.
Why
Because
you
have
enjoyed
the
results
of
the
science
and
scientists.
Now
can
you
tell
me
the
scientists
who
invented
the
lights,
the
gramophone
and
the
computer
S1:
Edison
invented
the
lights
and
the
gramophone.
S2:
The
first
computer
was
invented
by
a
group
of
American
scientists.
StepⅡ
Warming
up
First,
ask
some
questions
about
great
scientists.
Second,
ask
all
the
students
to
try
the
quiz
and
find
out
who
knows
the
most.
T:
You
know
our
life
is
closely
related
to
science
and
scientists.
We
benefit
a
lot
from
them.
Can
you
name
out
as
many
scientists
as
possible
S1:
Newton.
S2:
Watt.
S3:
Franklin.
Sample
answers:
1.
Archimedes,
Ancient
Greek
(287-212
BC),
a
mathematician.
2.
Charles
Darwin,
Britain
(1808-1882).
The
name
of
the
book
is
Origin
of
Species.
3.
Thomas
Newcomen,
British
(1663-1729),
an
inventor
of
steam
engine.
4.
Gregor
Mendel,
Czech,
a
botanist
and
geneticist.
5.
Marie
Curie,
Polish
and
French,
a
chemist
and
physicist.
6.
Thomas
Edison,
American,
an
inventor.
7.
Leonardo
da
Vinci,
Italian,
an
artist.
8.
Sir
Humphry
Davy,
British,
an
inventor
and
chemist.
9.
Zhang
Heng,
ancient
China,
an
inventor.
10.
Stepper
Hawking,
British,
a
physicist.
Step
Ⅲ
Pre-reading
Get
the
students
to
discuss
the
questions
on
page
1
with
their
partners.
Then
ask
the
students
to
report
their
work.
Encourage
the
students
to
express
their
different
opinions.
T:
Now,
class,
please
look
at
the
slide.
Discuss
these
questions
with
your
partners.
Then
I’ll
ask
some
students
to
report
their
work.
Show
the
following
on
the
screen.
What
do
you
know
about
infectious
diseases
What
do
you
know
about
cholera
Do
you
know
how
to
prove
a
new
idea
in
scientific
research
What
order
would
you
put
the
seven
in
Just
guess.
Sample
answer
1:
S1:
Let
me
try.
Infectious
diseases
can
be
spread
easily.
They
have
an
unknown
cause
and
may
do
great
harm
to
people.
S2:
People
could
be
exposed
to
infectious
diseases,
so
may
animals,
such
as
bird
flu.
S3:
AIDS,
SARS
are
infectious
diseases.
S4:
Infectious
diseases
are
difficult
to
cure.
Sample
answer
2:
S1:
Cholera
is
caused
by
a
bacterium
called
Varian
cholera.
S2:
It
infects
people’s
intestines,
causing
diarrhea,
vomiting
and
leg
cramps.
S3:
The
most
common
cause
of
cholera
is
people
eat
food
or
drink
water
that
has
been
contaminated
by
the
bacteria.
S4:
Cholera
can
be
mild
or
even
without
symptoms,
but
a
severe
case
can
lead
to
death
without
immediate
treatment.
Sample
answer
3:
S1:
I
know
sth.
about
it.
First
we
should
find
the
problem.
Then,
think
of
a
solution.
S2:
We
should
collect
as
much
information
as
possible.
S3:
Analyzing
results
is
the
most
important
stage.
S4:
Before
we
make
a
conclusion,
it
is
necessary
for
us
to
repeat
some
stages
or
processes.
Sample
answer
4:
S1:
I
think
“Find
a
problem”
should
be
the
first
stage.
S2:
“Make
up
a
question”
should
follow
the
first
stage.
S3:
“Think
of
a
method”,
“Collect
results”
and
“Analyze
results”
are
after
that.
S4:
Of
course,
before
“Make
a
conclusion”,
we
should
“Repeat
if
necessary”.
T:
Well
done!
When
we
want
to
solve
some
problems,
first
we
should
find
out
the
problem,
do
some
research
on
it,
prove
your
findings,
and
then
make
a
conclusion.
This
is
a
scientific
and
objective
way
of
researching.
Now
let’s
see
how
doctor
John
Snow
did
his
research.
Step
Ⅳ
Reading
Let
the
students
skim
the
whole
passage
and
try
to
work
out
the
meanings
of
the
new
words
and
structures
using
context.
T:
The
effect
of
cholera
in
the
nineteenth
century
London
was
devastating.
Many
people
died
without
knowing
the
reason.
It
was
doctor
John
Snow
who
saved
the
people.
Please
look
at
the
screen.
Let’s
read
the
whole
passage
and
find
answers
to
the
questions.
Show
the
questions
on
the
screen.
1.
What
conditions
allowed
cholera
develop
2.
Why
do
you
think
people
believed
that
cholera
multiplied
in
the
air
without
reason
3.
What
evidence
did
John
Snow
gather
to
convince
people
that
idea
2
was
right
Sample
answers:
S1:
The
dirty
water
made
the
cholera
develop
quickly.
S2:
Because
people
could
not
understand
its
cause
and
could
not
get
it
cured.
So
people
imagined
that
some
poisonous
gas
in
the
air
caused
the
deaths.
S3:
He
found
that
many
of
the
deaths
were
near
the
water
pump
while
some
areas
far
away
from
the
water
pump
had
no
deaths.
So
when
people
were
asked
not
to
use
the
water
pump,
the
disease
began
to
slow
down.
In
this
way,
John
Snow
had
shown
that
cholera
was
spread
by
germs
and
not
in
a
cloud
of
gas.
Step
Ⅴ
Text
analyzing
Ask
the
students
to
analyze
the
text
in
groups.
T:
Please
look
at
the
chart
on
the
screen.
The
chart
shows
that
each
paragraph
of
the
text
explains
John
Snow’s
stages
in
his
research.
Please
read
the
text
and
find
out
the
general
idea
of
each
paragraph
and
match
the
stage
with
each
paragraph.
Discuss
it
in
groups,
and
then
report
your
answers.
Paragraphs
Stages
General
ideas
1
2
3
4
5
6
7
Sample
answers:
S1:
My
group’s
opinion
is
this:
stage
one
“Find
a
problem”
is
expressed
in
paragraph
one.
The
general
idea
is
like
this:
John
Snow
wanted
to
find
the
causes
of
cholera.
S2:
Our
answer
is
like
this:
paragraph
two
expresses
the
second
stage
“Make
up
a
question”.
The
general
idea
is
like
this:
John
Snow
wanted
to
prove
which
theory
was
correct.
S3:
“Think
of
a
method”
is
the
third
stage.
And
it
is
contained
in
paragraph
three.
The
general
idea
is
like
this:
John
Snow
collected
data
on
those
who
were
ill
or
died
and
where
they
got
their
water.
S4:
The
fourth
stage
“Collect
results”
lies
in
paragraph
four.
Its
general
idea
is
like
this:
John
Snow
plotted
information
on
a
map
to
find
out
where
people
died
or
did
not
die.
S5:
Our
group
believe
paragraph
five
contains
the
fifth
stage
of
John
Snow’s
research.
The
general
idea
is
like
this:
John
Snow
analysed
the
water
to
see
if
that
was
the
cause
of
the
illness.
So
this
stage
is
to
“Analyse
the
results”.
S6:
The
sixth
stage
is
“Repeat
if
necessary”.
It
is
contained
in
the
sixth
paragraph.
The
general
idea
is
like
this:
John
Snow
tried
to
find
other
evidences
to
confirm
his
conclusion.
S7:
The
last
paragraph
is
about
the
seventh
stage
“Make
a
conclusion”.
Its
general
idea
is
like
this:
The
polluted
dirty
source
of
drinking
water
was
to
blame
for
the
cause
of
the
London
cholera.
Ask
some
students
to
put
their
answers
in
the
chart.
Paragraph
Stages
General
ideas
1
Find
a
problem
The
causes
of
cholera
2
Make
up
a
question
The
correct
or
possible
theory
3
Think
of
a
method
Collect
data
on
where
people
were
ill
and
died
and
where
they
got
their
water
4
Collect
results
Plot
information
on
a
map
to
find
out
where
people
died
or
did
not
die
5
Analyse
the
results
Analyse
the
water
to
see
if
that
is
the
cause
of
the
illness
6
Repeat
if
necessary
Find
other
evidences
to
confirm
his
conclusion
7
Make
a
conclusion
The
polluted
dirty
source
of
drinking
water
was
to
blame
for
the
cause
of
the
London
cholera
T:
Now
class.
Can
you
tell
me
what
style
of
the
passage
belongs
to
S1:
I
think
it
is
a
report.
T:
Very
good.
Who
can
tell
me
the
main
idea
of
this
passage
S2:
I
can.
Clearly
it
tells
us
how
John
Snow
defeated
the
disease
cholera
by
doing
scientific
research.
StepⅥ
Homework
1.
Get
more
information
about
some
infectious
diseases
and
modern
scientists.
2.
Finish
the
Exercises
1,
2,
3
on
pages
3
and
4.
