(共36张PPT)
Unit
6
When
was
it
invented?
Section
A
1a-2d
情景导入
T：There
are
many
useful
things
in
the
world.They
help
us
a
lot
in
life.(Show
some
pictures
on
the
screen)When
were
they
invented?
S1：The
telephone
was
invented
in
1876.
S2：The
computer
was
invented
in…
单词展示
n.
勺；铲子
scoop
n.
高兴；愉快
pleasure
n.
拉链；拉锁
zipper
生成新知
Do
you
know
them?
When
were
they
invented?
Who
were
they
invented
by?
Talk
about
the
inventions(发明).
Which
one
do
you
think
is
the
most
helpful
in
our
daily
life?
calculator
car
cell
phone
radio
1a
Look
at
the
things
below.
In
what
order
do
you
think
they
were
invented?
Discuss
them
with
your
group.
Then
number
them
[1–4]
(1
=
first,
4
=
last).
2
3
1
4
I
think
the
TV
was
invented
before
the
car.
Well,
I
think
the
TV
was
invented
after
the
car.
1b
Listen
and
match
the
inventions
with
the
years.
____
1876
____
1885
____
1927
____
1971
d
a
c
b
Alice:
Was
your
life
very
_______
when
you
were
a
kid?
Grandma:
Oh,
_________.
Why?
Alice:
Well,
you
didn’t
have
modern
inventions
like
a
telephone,
right?
Grandma:
Of
course
we
did!
How
old
do
you
think
I
am?
The
telephone
___________
in_____.
You
need
to
take
a
_______
class,
Alice!
difficult
not
really
was
invented
1876
history
Tapescripts
Alice:
Haha!
How
about
____?
They
weren’t
invented
yet,
were
they?
Grandma:
Yes,
they
were.
Cars
were
invented
in
_____.
My
family
had
a
car.
Alice:?Well,?did?you?have?a?____??
cars
1885
TV
Grandma:?No,?we?couldn’t?______?one.?They?were
________?
in?those?days.?The?TV?was?invented?around?
______,?I?think.
Alice:?Well,?I?know?that?you?didn’t?have?a?________
?
because?we?learned?in?school
that
personal?
computers?were?invented?in?______.?
Grandma:?You’re?right.?But?I?have?one?now!
afford
expensive
1927
computer
1971
点击按钮，播放视频
1
两个数字一组，分为前后两组
1865
eighteen
sixty
five
1989
eighteen
hundred
1900
531
five
hundred
and
thirty-one
two
thousand
2001
two
thousand
and
one
nineteen
eighty
nine
nineteen
hundred
年份的读法
3
前两个数字不为零，后两个数字为零。
2
千年的读法
4
非四位数的年份的读法
Student
B,
cover
the
dates.
Student
A,
ask
Student
B
when
the
things
in
the
picture
in
1b
were
invented.
Then
change
roles
and
practice
again.
When
was
the
telephone
invented?
I
think
it
was
invented
in
1876.
1c
When
was
the
car
invented?
It
was
invented
in
1885.
When
was
the
TV
invented?
It
was
invented
in
1927.
情景表演
When
was
the
computer
invented?
It
was
invented
in
1971.
2a
Listen
and
number
the
inventions[1-3]
in
the
order
you
hear
them.
___
shoes
with
special
heels
___
shoes
with
lights
___
hot
ice-cream
scoop,
runs
on
electricity
1
3
2
2b
Listen
again
and
complete
the
chart.
Invention
What
is
it
/
are
they
used
for?
shoes
with
special
heels
________
the
style
of
the
shoes
shoes
with
lights
seeing
___________
hot
ice-cream
scoop
________
really
cold
ice-cream
changing
serving
in
the
dark
Alex:?Hi,?Carol.?Wow,?what?are?those???
Carol:?Hello,?Alex.?Oh,?these?are?some?of?the?interesting?inve
ntions?that?I’m?writing
about?for?my?English?
homework.?
Alex:?I?see…What’s?that,?then???
Carol:?They’re?shoes?with?lights.?You?use?them?for?
seeing?in?
the?dark?when?you?get?up?at?night.?
Tapescripts
Alex:?Oh,?that’s?a?cool?idea!?I?always?hit?my?toe?against?
some
thing?on?the?way?to?the?bathroom?at?night.
Carol:?Next?is?a?special?ice-cream?scoop.?This?is?my?favorite
invention.?It?runs?on?electricity?and?becomes?hot.?
Alex:?I?know?what?it’s?for!?It’s?used?for?serving?really?
cold?ice-cream.?
Carol:?Yes,?that’s?right!?The?last?invention?I’m?going?
to?write
about?is?shoes?with?special?heels.?You?
can?move?the
?
heels?up?and?down.?
Alex:?What?are?they?used?for??
Carol:?Well,?you?can?change?the?style?of?your?shoes.?
You?can?
raise?the?heels?if?you?are?going?to?a?party?or?lower?
them?if?you?are?just?going?out?for?shopping.?
被用来……
The
first
invention
is
shoes
with
________.
People
always
hit
their
toes
against
__________
on
the
way
to
the
bathroom
at
night.
So
people
can
use
them
for
________
in
the
______.
The
second
invention
is
a
hot
ice-cream
______.
It
runs
on
_________
and
becomes
hot.
It’s
_____
for
serving
really
_____
ice-cream.
Listen
again
and
fill
in
the
blanks.
something
seeing
dark
lights
scoop
electricity
used
cold
The
last
invention
is
shoes
with
special
_____.
People
can
move
the
heels
_____
and
______.
You
can
_____
the
heels
if
you
are
going
to
a
______
or
______
them
if
you
are
just
going
out
for
_________.
heels
down
up
raise
party
lower
shopping
2c
Make
conversations
using
the
information
in
2b.
What
are
the
shoes
with
lights
used
for?
They’re
used
for
seeing
in
the
dark.
They’re
used
for
changing
the
style
of
the
shoes.
情景表演
What
are
hot
ice-cream
scoop
used
for?
What
are
shoes
with
special
heels
used
for?
They’re
used
for
serving
for
really
cold
ice-cream.
2d
Role-play
the
conversation.
Paul:
Hey
Roy,
the
subject
for
my
school
project
is
“Small
inventions
that
changed
the
world.”
Can
you
help
me
think
of
an
invention?
Roy:
My
pleasure!
Let
me
think…
hmm…
I
know!
The
zipper!
Paul:
The
zipper?
Is
it
really
such
a
great
invention?
Roy:
Think
about
how
often
it’s
used
in
our
daily
lives.
You
can
see
zippers
on
dresses,
trousers,
shoes,
bags…
almost
everywhere!
Paul:
Well,
you
do
seem
to
have
a
point…
Roy:
Of
course!
I
thought
about
it
because
I
saw
a
website
last
week.
The
pioneers
of
different
inventions
were
listed
there.
For
example,
it
mentioned
that
the
zipper
was
invented
by
Whitcomb
Judson
in
1893.
But
at
that
time,
it
wasn’t
used
widely.
Paul:
Really?
So
when
did
it
become
popular?
Roy:
Around
1917.
Read
the
passage
quickly
and
answer
the
questions.
What
is
the
subject
for
their
school
project?
2.
What
kind
of
invention
does
Roy
think
of?
3.
Why
does
Roy
think
it
is
a
great
invention?
Small
inventions
that
changed
the
world.
The
zipper.
Because
it
is
often
used
in
our
daily
lives.
4.
Who
and
when
was
the
zipper
invented?
5.
When
did
the
zipper
become
popular?
Whitcomb
Judson
in
1893.
Around
1917.
Whitcomb
L.
Judson?(1846
–1909)
was
an?American?machine
salesman,
mechanical
engineer
and
inventor.
He
developed
and
invented
the
zipper
in
1890.?
拓展阅读
问题探究
▲
辨析invent/discover/find/find
out
①
invent意为“发明；创造”，主要指通过想象、研究、劳动等创造出前所未有的东西，尤指科技上的创造发明。
②
discover指发现或偶然发现本身就存在但未被认识的事物。
③
find强调找的结果，即“找到”，通常指偶然发现。
④
find
out指经过观察、调查，把某事物查出来，意为“搞清楚；弄明白”。
随堂练习
Ⅰ.根据句意及汉语提示完成句子。
1．I
like
the
color
of
this
coat
but
I
don't
like
its
____(款式)．
2．It's
my
great
________(高兴)
to
have
a
talk
with
you.
3．The
little
inventions
have
helped
me
a
lot
in
my
____(日常的)
life.
4．Julia
introduced
a
good
_______(网站)
to
me
to
learn
English.
5．My
mother
always
_____(列清单)
all
things
that
she
wants
to
buy
before
shopping.
style
pleasure
daily
website
lists
1.
The
personal
computer
was
invented
in
1976.
(对划线部分提问)
______
______the
personal
computer
________?
2.
The
shoes
with
lights
were
invented
by
Julie
Thompson.
(对划线部分提问)
_____
______the
shoes
with
lights
_______
_____?
When
was
invented
Who
were
invented
by
Ⅱ.句型转换
3.
Knives
are
used
for
cutting
things.
(对划线部分提问)
_______
_______
knives
_______
_______?
4.
A
Chinese
named
Cai
Lun
invented
paper.
(改为被动语态)
Paper
_____
_______
___
a
Chinese
named
Cai
Lun.
What
are
used
for
was
invented
by
见讲义练习
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