2021年中考一轮复习-时间状语从句和让步状语从句课件(共44张PPT)

(共44张PPT)
Adverbial
Clause
状语从句-原因、让步状语从句
难度：中等
适合：初一、初二、初三学生
老师，虽然我们常常提到“状语从句”，可是什么才是状语从句呢？
状语从句指句子用作状语时，起副词作用的句子。它可以修饰谓语、非谓语动词、定语、状语或者整个句子。
老师，状语有哪些分类呢？
主要有八种状语从句，下面让我们一起来认识一下吧！
原因状语从句
I
succeed
because
I
always
stick
to
it.
一、原因状语从句
Conjunctions连词：
because，since,
as,
for,
now
that
1.1
关于because
（1）because
表示的原因是必然的因果关系，语气最强，通常放在主句之后，有时也放在主句之前。
You
want
to
know
why
I
am
leaving?
I
am
leaving
because
I
am
fed
up.
（2）回答Why提出的问题，只能用because，不能用其余三者。
Why
can’t
I
go?
Because
you
are
too
young.
（3）because
引导的从句可以用于强调句，其余不能。
It
is
because
he
is
kind
that
we
like
him.
（4）Because
从句可用于表语，其余不能。
This
is
because
the
earth
is
traveling
around
the
sun.
（5）表示“……的原因是因为……”这一意义时，一般要用The
reason
why…is
that….
如：
The
reason
why
he
cannot
come
is
that
he
is
ill.
1.2
关于since
since
引导的原因状语从句一般放在主句之后，表示已知的、显然的理由（通常翻译为“既然”），较为正式，比because弱。
Since
you
are
free
today,
you
had
better
tidy
up
your
bedroom.
既然今天你休息，你最好收拾一下房间。
Since可以用于省略句，而其他的不能。如：
Since
so,
there
is
no
more
to
be
said.
1.3
关于as
As引导原因状语从句时表示附带说明的“双方已知的原因”，语气比since弱，较为正式，位置较为灵活（常放在主句之前）。
例：As
it
is
raining,
you’d
better
take
a
taxi.
既然下雨，你最好乘坐出租车。
I
went
to
bed
early,
as
I
was
exhausted.
我睡得早，因为我筋疲力尽了。
1.4
关于for
（1）for
是并列连词（其他为从属连词），它有时可表示因果关系（只能放在主句之后），是对前面分句的内容加以解释。如：
It
rained
last
night,
for
the
ground
is
wet
this
morning.
（2）for“因为，由于”，表明附加或推断的理由，引导的分句前常有逗号。For分句不放在句首。
例如：Day
breaks,
for
the
bird
sings.
1.
He
didn’t
come
to
school
because
he
was
ill.
2.
He
might
be
ill,
for
he
didn’t
come
to
school.
表示“直接的”原因。
表示“间接的推断”的原因，不可以出现在句首。
1.5
关于
now
that
now
that用来说明一种新情况，然后加以推论。
Now
that
you
are
ready,
we’ll
start
at
once.
既然你已经准备好了，我们马上开始吧。
注意：
汉语习惯上说“因为…….所以”，但是英语不能把because，
since，
as，
for等与“so”连用。
Jenny
was
very
sad
over
the
loss
of
the
photos
she
has
shot
at
Canada,
_____________this
was
a
memory
she
especially
treasured.
A.
as
B.
if
C.
when
D.
where
2.
Some
people
believe
that
______________
oil
is
running
out,
the
fate
of
the
motor
industry
is
uncertain.
A./
B.
though
C.
for
D.
since
练一练：
（考题1）__________you’
ve
got
a
chance,
you
might
as
well
make
full
use
of
it.
now
that
B.
After
C.
Although
D.
As
soon
as
（考题2）He
found
it
increasingly
difficult
to
read,
____________his
eyesight
was
beginning
to
fail.
A.
and
B.
for
C.
but
D.
or
（考题2）A
man
cannot
smile
like
a
child,
__________a
child
smiles
with
his
eyes,
while
a
man
smiles
with
his
lips
alone.
A.
So
B.
but
C.
and
D.
for
让步状语从句
Although
he
is
old,
he
is
leaving
for
the
front
without
doubt.
怪物史瑞克：
“我很丑，可是我很温柔。”
1.
I
am
ugly,
but
I
am
very
gentle.
2.
Though
I
am
ugly,
I
’
very
gentle.
3.
Although
I
am
ugly,
I
am
very
gentle.
（并列句）
（让步状语从句）
（让步状语从句）
二、让步状语从句
（1）引导词：
Though，
although，
as（虽然，尽管），even
if/
even
though（即使），while（虽然），no
matter
+
which/
what
when
/
where/
who/
how.
Whichever/
wherever/
whatever/
whoever/
whenever/
whoever/
whenever/
however（无论……）,whether…or（无论/不管是……还是……）
（2）位置：句首或者后半句开头。
2.1
though/
although
虽然/尽管……（但是……）
尽管他很忙，但是他经常帮助我学习英语。
①_________________________________________________,
he
often
helps
me
with
my
English.
②
He
often
helps
me
with
my
English
_________________________________________________.
Although
/
Though
he
is
very
busy
although
/
though
he
is
very
busy
Though
/
Although
it
was
dangerous,
the
soldiers
were
never
afraid.
=
It
was
dangerous,
but
the
soldiers
never
afraid.
注意一个典型的错误：
though/
although切不可以与but连用。
2.2
even
though
/
even
if
即使……（也……）
即使天气很不好，我们也要进行旅行。
We
‘
ll
make
a
trip
________________________________________________________
even
though/
even
if
the
weather
is
bad.
2.3
as
虽然/尽管……（但是）
1
.
Though
he
is
a
child,
he
knows
a
lot.
=
Child
as
he
is
,
he
knows
a
lot.
2.
Though
he
is
old,
he
works
very
hard.=
Old
as
he
is,
he
works
very
hard.
3.
Though
he
works
hard,
he
makes
little
progress.
=Hard
as
he
works,
he
makes
little
progress.
形容词
名词
副词
归纳：
as引导的让步状语从句：
必须将从句中的_________________、____________________、以及谓语中的____________________提前至从从句句首。
表语的名词前有冠词，冠词要_______________________.
表语（n.
/adj.）
状语（adv.）
实义动词
省略
结构：n.
/adj./
adv./
v.+
as
+主语+谓语
Child
as
he
is
,
he
knows
a
lot.
=Child
though
he
is,
he
knows
a
lot.
2.4
while
引导的让步状语从句
While（=although）,它引导的让步状语从句只能前置，位于句首，如：
While
you
may
be
right,
I
can’t
altogether
agree.
While
I
admit
that
the
problems
are
difficult,
I
don’t
agree
that
they
cannot
solved.
2.5
no
matter
+疑问词=疑问词-ever
No
matter
what
happened,
he
would
not
mind.
=
Whatever
happened,
he
would
not
mind.
替换：
no
matter
what=
_____________________________
No
matter
who=
_____________________________
No
matter
when=
_____________________________
No
matter
where=
_____________________________
No
matter
which=
_____________________________
No
matter
how=
_____________________________
whatever
whoever
whenever
wherever
whichever
however
注意：
no
matter+疑问词只能引导让步状语从句，不能引导主语从句、表语从句和宾语从句，而“疑问词+ever”则可以。
No
matter
how/
however
+
adj.
/
adv.
+主谓
无论多么……
判断正误：
No
matter
what
you
say
is
of
no
use
now.
Whatever
you
say
is
of
no
use
now.
主从
3.
even
though和
though
even
though（=even
if）引导的从句指把握不大或者假设的事情，意味“即使”。
Most
of
us
ignore
the
food
advice,
even
if
/
even
though
we
know
it
is
may
be
true.
___________
I
accept
that
he
is
not
perfect,
I
do
actually
like
the
person.
While
B.
Since
C.
Before
D
.
Unless
2.
The
workers
are
determined
to
go
through
with
their
railway
project,
____________
the
expenses
have
risen.
as
long
as
B.
even
though
C.
now
that
D.
as
though
练一练：
3.
___________________________________,
he
knows
more
than
other
children
of
his
age.
However
young
child
he
is
Child
as
he
is
No
matter
how
young
child
is
What
a
young
child
he
is
4.
I
really
want
the
match,
however
much_____________________.
A.
does
it
cost
B.
costs
it
C.
will
it
cost
D.
it
costs
5.
_________________
we
have
finished
the
course,
we
shall
start
doing
more
revision
work.
For
now
Now
that
By
now
Until
6.
________________,
the
idea
of
having
to
work
under
a
woman
defeated
him.
Wanting
the
job
very
much
Although
wanting
the
job
badly
Though
he
wanted
the
job
very
much
He
wanted
the
job
badly
练一练（综合训练）：
__________________
he’
s
old,
he
can
still
carry
this
heavy
bag.
Though
Since
For
So
2.
Do
you
know
if
he
_______________
to
play
basketball
with
us?
I
think
he
will
come
if
he
_______________
free
tomorrow.
comes
;
is
comes;
will
be
will
come;
is
will
come;
will
be
3.
We
will
stay
at
home
if
my
aunt
________________
to
visit
us
tomorrow.
comes
come
will
come
is
coming
4.
The
traffic
asked
the
children
_______________
cross
the
street
_______________
the
traffic
lights
turned
green.
not；
before
don’t;
when
not
to;
until
not;
after
7.
I
was
late
for
class
yesterday
_____________
there
was
something
wrong
with
my
bike.
when
that
until
because
8.
I’
ll
go
swimming
with
you
if
I
____________
free
tomorrow.
will
be
shall
be
am
was
6.
In
the
exam,
the
_______________
you
are,
the
_________________
mistakes
you
will
make.
careful；
little
more
careful；
fewest
more
careful；
fewer
more
careful；
less
7.
You
should
finish
your
lessons
_______________
you
go
out
to
play.
before
after
when
while
9.
I
hurried
_______________
I
wouldn’t
be
late
for
class.
since
so
that
as
if
unless
10.
When
you
read
the
book,
you
‘d
better
make
a
mark
____________
you
have
any
questions.
which
that
where
though
11.
________________
well
you
can
drive,
you
must
drive
carefully.
So
long
as
In
order
that
No
matter
how
The
moment
12.
Write
to
me
as
soon
as
you
_______________
to
Beijing.
will
get
get
getting
got
Happy
60
s
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