(共39张PPT)
Unit
1
The
Changing
World
Topic
2
The
population
in
developing
countries
Section
D
仁爱科普
九年级上
Warming-up
Let’s
watch
a
video:
blue
sky
quiet
clean
water
fresh
air
What’s
the
advantage
of
living
in
a
small
town
Warming-up
The
house
is
surrounded
by
trees
and
flowers
被…环绕
modern
tall
buildings
many
interesting
places
excellent
transportation
huge
markets
big
shopping
malls
What’s
the
advantage
of
living
in
a
city
heavy
traffic
too
many
people
busy
streets
What’s
the
disadvantage
of
living
in
a
city
too
much
noise
the
air
is
not
so
clean
not
so
close
to
the
nature
This
is
a
small
mountain
town
called
Fairmont
in
Canada.
It
is
surrounded
by
trees.
People
are
careful
with
garbage
and
discourage
cutting
trees.
The
local
people
often
help
each
otherand
have
fun
together.
Beijing
is
the
capital
of
China.
It
has
a
long
history
and
many
places
of
interest.
It
has
big
shopping
centers
and
huge
markets,
the
public
transportation
is
excellent,
too.
名胜古迹
…的首都
公共交通
Free
talk
Do
you
want
to
live
in
a
small
town
like
Fairmont
or
a
big
city
like
Beijing
Why
Fairmont
Beijing
Talk
with
your
partner
about
this
question:
Listen
to
the
tape
and
write
T(true)
or
F(false):
Listening
1
1.
The
population
of
Canada
is
about
36million.
(
)
2.
More
than
600
people
live
in
Fairmont.
(
)
3.
It’s
hard
for
Sue
to
see
friends
because
they
live
far
away.
(
)
4.
Li
Ming
doesn’t
like
Beijing.
(
)
5.
Li
Ming
often
meet
friends
to
play
computer
games.
(
)
Read
passage
1
and
choose
the
best
answer:
Reading:
1.
How
long
has
Sue
lived
in
Fairmont
A.
For
three
years
B.
Since
she
was
three.
C.
We
don’t
know.
2.
What
don’t
people
often
do
in
Fairmont
A.Help
each
other
B.
Discourage
cutting
trees.
C.
see
friends.
Read
passage
2
and
choose
the
best
answer:
Reading:
3.
Why
does
Liming
like
the
capital
of
China
A.
Because
he
has
many
friends.
B.
Because
of
the
large
population.
C.
Because
the
air
is
clean
and
fresh.
4.
What
do
you
think
is
the
biggest
problem
in
Beijing
A.
People
live
far
away.
B.
The
large
population.
C.
The
excellent
transportation.
Read
the
passage
again
,
then
fill
in
the
blanks.
Name
Sue
Li
Ming
Place
in
Fairmont,
a
small
town
in
Beijing,
a
large
city
Advantage
Disadvantage
1.
clean
and
fresh
air
1.
excellent
transportation
hard
to
see
friends,
live
so
far
away
large
population
2.
close
to
nature
3.
often
help
each
other
2.
fine
and
interesting
places
to
visit
1
Reading
Read
the
first
passage
of
1
again
and
repeat.
Hello,
everyone!
My
name
is
Sue.
I
live
in
Canada.
Canada
is
a
large
country
with
a
population
of
about
36
million.
I
live
in
a
small
mountain
town
called
Fairmont.
I
have
lived
here
since
I
was
three.
Fewer
than
600
people
live
here.
The
small
town
is
surrounded
by
trees.
The
air
is
clean
and
fresh.
People
live
close
to
nature
and
try
to
protect
it.
They
are
careful
with
garbage
and
discourage
cutting
trees.
The
town
is
really
like
one
big
family.
The
local
people
often
help
each
other
and
have
fun
together.
But
sometimes
it
is
hard
to
see
friends
because
they
live
so
far
away.
Reading
Hi,
I'm
Li
Ming.
I
live
in
Beijing,
the
capital
of
China.
My
city
has
a
long
history
and
many
places
of
interest.
We
have
big
shopping
centers
and
huge
markets.
Our
public
transportation
is
excellent,
too.
Buses,
taxis,
and
subways
can
take
my
friends
and
me
to
any
part
of
the
city.
We
can
play
sports,
see
Beijing
operas,
go
to
movie
theaters,
and
eat
delicious
food.
There
are
many
fine
places
such
as
Beihai
Park
and
Tian'anmen
Square
where
we
can
meet
with
friends
to
dance
or
listen
to
music.
I
love
my
city
of
Beijing
because
I
have
so
many
friends
here
and
we
have
so
many
interesting
places
to
visit
together.
But
now
the
large
population
in
Beijing
has
caused
some
problems.
Read
the
second
passage
of
1
again
and
repeat.
Grammar:
Grammar:
1
I
live
in
a
small
mountain
town
called
Fairmont.
我居住在一个叫Fairmont
的小山城。
called
Fairmont过去分词短语放在名词后作后置定语，这里called可改为named/with
the
name
of
...。e.g.
The
boy
called/named/with
the
name
of
Li
Lei
is
my
brother.
名叫李雷的那个男孩是我的弟弟。
2
interest意为“吸引力,趣味”,不可数名词。
a
place
of
interest一处名胜，
places
of
interest
许多名胜。
There
are
many
places
of
interest
in
our
city.
我们城市有许多名胜。
Jim
lives
in
a
small
village
,
It’s
a
beautiful
place
,
his
house
is
by
trees
,
the
people
there
take
good
care
of
their
hometown
,
they
are
careful
with
,
They
cutting
trees.
His
sister
Mary
lives
in
Beijing
,
the
of
China
,
She
likes
living
there
because
she
likes
shopping
,
there
are
many
huge
and
the
is
excellent.
surrounded
garbage
discourage
capital
markets
transportation
Fill
in
the
blanks
with
the
right
words
in
the
passages
of
1:
Which
place
would
you
like
to
live
in
Why
Huangshantou
Gong’an
Hainan
China
Shanghai
China
Sydney
Australia
Group
work
Group-work
Talk
with
your
partners
in
groups:
Write
a
short
passage
about
the
place
you
would
like
to
live
based
on
1.
You
may
begin
like
this:
I’m
…
I
would
like
to
live
in
…
First
of
all,
…
I’m
Maria.
I
would
like
to
live
in
a
big
city,
because
it
is
convenient.
First
of
all,
it
has
excellent
public
transportation
so
that
I
can
go
to
any
part
of
the
city.
Second,
it
has
many
places
of
interest.
I,
with
my
friends,
can
visit
these
interesting
places
in
our
spare
time.
What’s
more,
it
has
many
shopping
centers
and
markets.
We
can
buy
things
easily.
One
possible
version:
The
train
（leave).
It
（leave）
just
now.
She
is
doing
her
homework.
She
(not
finish)
her
homework
yet.
has
left
left
hasn’t
finished
Lead-in
A:
______
you
________(care)
for
the
old
before
B:
Yes.
We
often
take
part
in
social
activities.
I
know
the
Great
Wall
very
well.
Because
I
(be)
there
before.
Have
cared
have
been
Present
Perfect
(II)
I
have
______
called
you.
I’ve
______
been
there
before.
China
has
________
carried
out
the
one-child
policy
to
control
the
population.
Have
you
found
him
_____
Have
you
______
been
to
the
cinema
nearby
just
never
already
yet
ever
Grammar:
Grammar:
用法：1.
表示过去发生或已经完成的某一动作对现在造成的影响或结果。
2.
表示动作或状态从过去某时开始，一直延续至今，还可能继续下去。
构成：助动词have/has
+
动词的过去分词
(1)
肯定句:主语+have/has
+过去分词+其它
e.g.
We
have
seen
the
film.
(2)
否定句：主语+haven’t/hasn’t
+过去分词+其它。
e.g.
We
haven’t
seen
the
film.
(3)
一般疑问句：Have/Has
+主语
+过去分词+其它？
e.g.
Have
you
seen
the
film
Present
Perfect
tense
现在完成时
过去分词done规则变化
其中，动词过去分词的构成有规则构成和不规则构成两类。规则动词过去分词的构成和其过去式的构成相同。
(1)一般动词，在词尾直接加“
ed
”。
work---worked---worked
(2)以“
e
”结尾的动词，只在词尾加“
d
”。
live---lived---lived
(3)以“辅音字母
+
y
”结尾的动词，将“y”
变为
“i”，再加“
ed
”。
study---studied---studied
(4)重读闭音节结尾，末尾只有一个辅音字母，先
双写该辅音字母，再加“
ed
”。
drop---dropped--dropped
现在完成时
用法：1.表示到现在为止已经完成或刚刚完成的动作。
2.表示过去发生或已经完成的某一动作对现在造成的影响或结果。
3.表示动作或状态从过去某一时刻开始,
一直延续到现在,
而且可能还要继续下去。
标志时间状语:
ever,
never,
before...
标志时间状语:
for+时间段;
since+时间段+ago;since+时间点；
since
+一般过去时态句子；另外有so
far,
up
to
now,
recently(近来),
in
the
past
few
years
标志时间状语:
already,
yet,
just
already
“已经”,
常用于肯定句中.
一般置于助动词have/has与过去分词之间,
也可以放在句末。
I
have
already
seen
the
film.
I
have
finished
my
homework
already.
yet,在现在完成时句型中常置于句末。
1)
“已经”,
常用在疑问句。Has
Linda
read
the
book
yet
2)“还,
仍然”,
常用于否定句。The
bus
hasn’t
come
yet.
另外
just
“刚刚”,
常用于肯定句中，一般置于助动词have
/
has与过去分词之间；而just
now
则用于一般过去时。
I
have
just
finished
lunch.
I
finished
lunch
just
now.
just,
already,
yet,
ever,
never,
before等词用法。
（1）just
“刚刚,
刚才”；
一般用于肯定句中，放在中间。
（2）already
“已经”；
多用于肯定句中，可放在中间或句末。
（3）yet
“
已经，尚、还”；
多用于否定句或疑问句,
放句末。
（4）
ever
“曾经”；
多用于疑问句中，放在中间。
（5）
never
---未曾，从来没有；否定词，用于现在完成时表示以前从未做过某事，放在中间。常与before连用。
(6)
before
---
以前；指过去某个时间点之前所发生的事，常用于完成时，放句末。
Functions
I
really
_______
going
to
a
place
like
that.
____
do
I.
hate
Read
through
Sections
A-C
and
fill
in
the
blanks
with
the
correct
words.
So
It
is
increasing
_____
80
million
every
year.
by
increase
by
增加了……
increase
to
增加到……
…
the
population
in
developing
countries
is
___________
that
in
developed
countries.
larger
than
China
____
the
largest
population
in
the
world,
and
about
one
_____
of
the
people
in
the
world
live
in
China.
has
fifth
______
to
the
policy,
China
is
developing
quickly
and
…
Thanks
Grammar:
Language
points:
3.
So
it
is.
该结构主要用于加强语气，其意为“的确如此、确实如此”
，表示后者赞同前者的话或意见，只是进一步强调并重复前句所述的内容。前后句的主语指的是同一个人或物。该结构中的助动词
do
根据前文的情况也可换成
is,
am,
are,
was,
were,
does,
did,
can,
could
等。如:
-He
has
done
a
good
job.
他干得不错。
-So
he
has.
他的确干得不错
Grammar:
Language
points:
So
+
be/情态动词/助动词+主语该结构主要用来说明前面所说的情况也同样适用于后面的人或物，[意为“……也一样”]。该结构中的助动词
do
根据前文的情况也可换成
is,
am,
are,
was,
were,
does,
did,
can,
could
等。
如:
He
passed
the
exam,
and
so
did
I.
=He
passed
the
exam,
and
I
passed
the
exam,
too.
但是如果前面所述情况为否定式，则用neither,
nor引出倒装句(此时不能用so)。如:
He
couldn’t
do
it,
and
neither
could
she.
他做不了这事，她也做不了。He
never
comes
late.
Nor
do
I.
他从不迟到，我也从不迟到。
Grammar:
Language
points:
分数词的表达法:
1).结构:
a).分子用基数词,分母用序数词.
1/3---
one
third(one-third)
b).当分子大于1时,分母加复数.
3/4---
three
fourths
(three-fourths)
分数词的几种特殊形式.
1/3—one
third
=
a
third
1/4—one
fourth
=
a
quarter
1/2—one
second
=
a
half
3/4—three
fourths
=
three
quarters
one
sixth
one
ninth
one
twentieth
five
sixths
two
ninths
seven
twentieths
Practice:
one
/
a
half
a
quarter
three
quarters
three
and
a
half
Grammar:
Language
points:
分数用法注意：
a).分数作定语时，与所修饰的名词之间加of。
e.g.
我们班三分之二的学生是男生。
____
_______
_____
the
students
in
our
class
are
boys.
b).分数后面可接可数n.，
也可接不可数n.，谓语动词的单复数和分数词后的名词保持一致。
Two
fifths
of
the
milk
______(be
)
drunk
by
Tom
.
One
third
of
the
students
_______(be
)girls
.
is
are
Two
thirds
of
Choose
the
best
answer.
1.
—Have
you
improved
your
English
______
—Yes,
I
have.
I’ve
______
improved
it.
A.
already;
already
B.
already;
yet
C.
yet;
already
D.
yet;
yet
2.
China
has
a______
population.
A.
many
B.
much
C.
lot
of
D.
large
3.
—Have
you
been
to
the
village
_______
Gum
Tree
It’s
a
beautiful
place.
—
Oh,
really
I
will
go
there
some
day.
A.
called
B.
is
called
C.
calls
D.
call
4.
—
I
like
to
sing
English
songs.
What
about
you
—
______
A.
So
I
do.
B.
So
do
I.
C.
Either
is
OK.
D.
Neither
do
I.
C
D
A
B
Exercises
Project
Making
a
Report
on
Different
Types
of
Families
Look
at
the
different
types
of
families
below
and
discuss
the
advantages
and
disadvantages
of
each
type
of
family.
2.
Which
kind
of
family
do
you
belong
to
and
which
one
do
you
like
better
Why
3.
Report
the
result
to
the
class.
extended
family
nuclear
family
Grammar:
Key
phrases
we
learn
today:
be
surrounded
by...
被......围绕
discourage
(from)
cutting
trees
阻止砍树
many
places
of
interest
许多名胜古迹
△pubic
transportation
公共交通运输
the
capital
of
China
中国的首都
△extended
family
数代同堂的大家庭
△nuclear
family
核心家庭
Summary
We
learn:
1.
some
words:
surround
garbage
discourage
capital
huge
market
transportation
excellent
2.
some
phrases:
be
surrounded
by
close
to
the
capital
of
discourage
doing
sth.
We
can:
1.
Use
the
present
perfect
tense.
2.
Describe
the
place
we’d
like
to
live.
Summary
Recite
1.
2.
Write
the
composition
in
2.
3.
Finish
Section
D
in
your
workbook.
Homework
谢谢
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Unit
1
Topic
2
Section
D
同步练习
一、单选题。
(
)1.—They
have
been
to
Australia.
—So
_____
I.
A.do
B.
have
been
C.
did
D.
have
(
)2.The
population
of
Shanghai
is
larger
than
_____
of
Shenyang.
A.that
B.it
C.one
D.this
(
)3.—_____
the
population
of
the
U.S.A.
in
2005
—It
_____
about
296
million.
A.What
is;
is
B.What
was;
was
C.How
many
is;
was
D.How
many
was;
is
(
)4._____
of
the
teachers
are
women
in
our
school.
A.Two
third
B.Two
threes
C.Two
thirds
D.Second
three
(
)5.He’s
read
this
book
before,
_____
A.hasn’t
he
B.doesn’t
he
C.isn’t
he
D.wasn’t
he
(
)6.The
_____
population
may
be
the
greatest
challenge
of
the
world
today.
A.increase
B.increased
C.increasing
D.increases
(
)7.The
little
girl
has
_____
finished
reading
the
book
you
lent
her.
A.already
B.yet
C.still
D.once
(
)8.—What
has
happened
in
your
hometown
—Great
changes
_____
in
my
hometown
recently.
A.have
been
taken
place
B.have
taken
place
C.have
been
happened
D.was
happened
(
)9.Students
today
have
a
lot
of
pressure(压力)
_____
they
have
to
learn
too
much
knowledge
at
school.
A.in
order
to
B.unless
C.
because
D.because
of
(
)10.—I
have
never
visited
a
paper
factory.
—_____
A.So
have
I.
B.So
I
have.
C.Neither
have
I.
D.I
haven’t
now.
二.情景交际。
A:
Hi,
Mike!
You’re
reading
the
novel
again.
B:
Yes,
John.
I’ve
never
been
tired
of
it.
A:
11
B:
Three
times.
Every
time
I
read
it,
I
can
learn
something
new.
A:
Really
12
B:
Charles
Dickens.
I
think
he
is
a
great
English
writer.
A:
13
He
is
also
my
favorite
foreign
writer.
Please
let
me
have
a
look
at
it.
B:
OK,
here
you
are!
...
What
do
you
think
of
this
novel
A:
14
I
haven’t
seen
such
a
novel
for
long.
Where
did
you
buy
it
B:
In
the
Xinhua
Bookshop.
A:
I
don’t
know
where
it
is.
15
B:
No,
only
10
minutes’
walk
from
here,
next
to
the
People’s
Cinema.
A:
Oh,
I
see.
I’m
going
there
to
get
one,
too.
Thank
you!
B:
You’re
welcome!
A.I
have
already
finished
reading
it.B.Who
wrote
it C.How
many
times
have
you
read
it D.So
do
I.E.Have
you
finished
it
yet F.
Is
it
far
from
here G.It’s
exciting.
三.完形填空。
What
is
the
population
of
China
There
are
more
than
a
billion
and
three
hundred
million
people
in
China.
It
is
almost
one
fifth
of
the
world’s
population.
How
to
control
the
population
growth
is
a
big
problem.
Some
people
think
16
control
the
population
growth.
But
I
don’t
agree
17
them,
because
where
there’s
a
will,
there
is
a
way.
The
question
is
that
we
should
make
it
18
how
serious
the
population
problem
is.
Our
farmland
is
becoming
less
and
less
to
everyone.
We
have
already
got
too
many
mouths
to
feed.
19
we
control
the
population
growth,
many
people
will
die
20
hunger.
Too
fast
population
growth
has
been
and
will
be
bad
for
our
nation.
Though
laws(法律)
have
been
21
to
control
the
population
growth,
in
some
places
22
is
done
to
carry
out
the
law.
We
should
make
people
23
that
it
is
foolish
to
bring
too
many
children
into
the
world.
They
should
24
do
what
they
have
been
doing
for
many
years.
We
are
fighting
against
the
rapid
population
growth.
Yes,
the
fighting
won’t
end
25
everyone
knows
its
importance
and
does
something
for
it.
Let’s
go
on
working
hard
on
it
together.
(
)16.A.that
is
impossible
for
B.impossible
of
C.that
is
impossible
of
D.it
impossible
to
(
)17.A.to
B.for
C.with
D.on
(
)18.A.known
to
everybody
B.known
by
everybody
C.know
to
everybody
D.know
by
everybody
(
)19.A.If
not
B.Unless
C.Until
D.If
(
)20.A.of
B.about
C.from
D.out
of
(
)21.A.pass
B.passed
C.broken
D.past
(
)22.A.many
B.little
C.a
lot
D.much
(
)23.A.to
know
B.to
learn
C.know
D.learning
(
)24.A.not
longer
B.not
more
C.no
longer
D.no
more
(
)25.A.until
B.after
C.when
D.as
同步练习答案
一、1-5
DABCA
6-10
CABCC
二.
11-15
CBDGF
三.
16-25
DCABA
BBCCA
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