主语从句
1.
It
is
a
truth
well
known
to
all
______China
has
become
one
of
the
strongest
countries
in
the
world.
A.
where?????????????
B.
which?????????????
C.
that?????????????
D.
who
【答案解析】
C
【详解】考查主语从句。句意：众所周知，中国已成为世界上最强大的国家之一。分子句子可知，此处是一个主语从句，it是形式主语，that引导的是真正的主语。故选C。
2.
It
is
no
use
_____
for
your
mistakes
now.
_____
you
need
to
do
is
correct
them
as
soon
as
possible.
A.
crying;
What?????????????
B.
crying;
That?????????????
C.
to
cry;
That?????????????
D.
to
cry;
What
【答案解析】
A
【详解】考查固定句型和主语从句。句意：现在为你的错误哭泣是没有用的。你需要做的是尽快纠正它们。It
is
no
use
doing
sth.做某事是没有用的，该句型是固定句型；_____
you
need
to
do是一个主语从句，引导词在从句中作宾语，表示“你需要做的事情”，用what引导该从句。故选A。
3.
_____
you
can
succeed
or
not
mainly
depends
_____
how
hard
you
work
at
it.
A
That;
on?????????????
B.
What;
upon?????????????
C.
Whether;
upon?????????????
D.
If;
on
【答案解析】
C
【详解】考查名词性从句和固定短语。句意：你能否成功取决于你有多努力。句中出现or
not，分析句子可知，该题考查的是whether引导的主语从句，故A选项和B选项排除，引导主语从句位于句首时不能用if，故D选项排除。depend
on/upon为固定短语，意为“取决于……”。故选C项。
4.
______
is
surprising
to
us
is
that
Tom,
for
______
English
was
once
boring,
can
speak
English
fluently
as
though
he
were
a
native
speaker.
A.
What;
whom?????????????
B.
What;
whose
C.
It;
whose?????????????
D.
As;
whom
【答案解析】
A
【详解】考查主语从句和定语从句。句意：让我们惊讶的是，汤姆对他来说英语曾经是枯燥的，现在可以流利的说英语好像是英国本土的人。通过分析句子结构，可知这个句子中包含一个主语从句，和一个非限制性定语从句。且引导词在主语从句中作主语，表示“什么”的含义，故用what。介词
+
关系代词引导的定语从句，定语从句的主语是English，这里表示“对于某人来说”，需要for的宾语，指人只能用whom。故选A。
5.
_________
is
known
to
all
is
that
the
earth
is
smaller
than
the
sun.
A.
As?????????????
B.
What
C.
It?????????????
D.
Which
【答案解析】
B
【详解】考查名词性从句。句意：众所周知，地球比太阳还小。复合句的主语是一个名词性从句，从句没有引导词和主语，表示“所……的（事）”，故用what引导，其双重作用，故选B。
【点睛】英语“众所周知”的表达方法：1.
用as引导非限制性定语从句：As
we
all
know；As
everyone/everybody
knows；As
is
known
to
us
all；As
is
known
to
everyone/everybody
2.
用It做形式主语，that从句做真正主语：It
is
known
to
us
all
that从句；It
is
known
to
everyone/everybody
that从句
3.
用what引导主语从句，后用that引导表语从句：What
is
known
to
us
all
is
that从句；What
is
known
to
everyone/everybody
is
that从句
6.
_______
is
known
to
us
all
that
the
old
scientist,
for
_______
life
was
hard
in
the
past,
still
works
hard
in
his
eighties.
A.
As;
whose?????????????
B.
It;
who?????????????
C.
As;
whom?????????????
D.
It;
whom
【答案解析】
D
【详解】考查主语从句和定语从句。句意：众所周知，这位年老的科学家，过去他的生活很艰难，在他八十多岁时仍然努力工作。It
is
known
to
us
all
that是个固定句型，意思是“众所周知”，这里it是形式主语，真正的主语是that引导的主语从句，如果用as的话，as
is
known
to
us
all后面要用逗号与后面的句子隔开，没有that；第二空中句子包含一个“介词+关系代词”引导的定语从句，指人，只能用whom，故选D。
7.
_____
makes
this
shop
different
is
that
it
offers
more
personal
services.
A.
What?????????????
B.
Who?????????????
C.
Whatever?????????????
D.
Whoever
【答案解析】
A
【详解】考查主语从句。句意：这家商店的不同之处在于它提供更多的个人服务。what引导名词性从句时本身有意义，即表示“什么”或“所……的事物”(="the"
thing(s)that)，同时又在从句中充当一定的成分。whoever引导名词性从句时相当于anyonewho或those
who。whatever引导名词性从句时相当于anything
that，故选A。
8.
Some
people
believe
_______
has
happened
before
or
is
happening
now
will
repeat
itself
in
the
future.
A.
whatever?????????????
B.
whenever
C.
wherever?????????????
D.
no
matter
what
【答案解析】
A
试题分析：本句的是“特殊疑问词+ever”引导的主语从句。句意：一些人认为之前发生的或现在正在发生的任何事情在将来都会重复发生。Whatever
has
happened
before
or
is
happening
now是一个主语从句，whatever既引导起这个主语从句，也在句中做主语。BC项都属于副词的性质，都不能做主语，通常只能做状语；no
matter
what只能用来引导状语从句，故A正确。
9.
______
Qidong
won
the
title
of
National
Civilized
City
made
people
in
the
city
very
excited.
A.
That???
B.
What
C.
Which???
D.
Whether
【答案解析】
A
【详解】考查主语从句。句意：得知启东市获得了全国文明城市的称号，全城的人都很激动。______
Qidong
won
the
title
of
National
Civilized
City是一个主语从句，引导词在从句中不作任何成分，也没有实际意义，所以用that，故选A。
【点睛】在句中作主语的从句叫主语从句(Subjective
Clause).主语从句是一种重要的名词性从句，在高考试题中频频出现。那么高考对它考查的重点是什么?
I.由what等连词引导的从句
在主语从句中,
what
=
the
thing(s)
that,它本身在从句中充当某个成分,或是主语,或是宾语,其含义为"所做/说/想的".
II.由that引导的主语从句
that在主语从句中不充当具体的句子成分，也无实际词义，只起连接作用，而且当它在句首时，不能省。
III.由whether或if引导的主语从句
whether与if皆可引导主语从句，但放在句首常用whether。
IV.由whoever,
whatever等引导的主语从句
whoever
=
the
person
who或anyone
who.
who也可以引导主语从句,但只表示"谁",如:Who
will
win
is
not
important.
anyone与the
person皆不能引导从句.
V.由it作形式主语引起的主语从句
that从句作主语时，常用it作形式主语，而把that引导的主语从句放到句后.在下列情况下,一般使用形式主语it,将主语从句放在句尾。
10.
With
your
help,
there
is
no
doubt
________
________
our
plan
is
meant
for
will
work
out
successfully.
A.
what,
that?????????????
B.
that,
whether
C.
that,
what?????????????
D.
whether,
what
【答案解析】
C
考查同位语从句和主语从句。句意：有你的帮助，毫无疑问我们的计划将顺利完成。With
your
help,
there
is
no
doubt
that
[what
our
plan
is
meant
for]
will
work
out
successfully.同位语从句套主语从句；there
is
no
doubt
that
xxxxx
是同位语从句；[what
our
plan
is
meant
for]是从句的主语，意思是“我们计划的目的”。故答案为C。
11.
_____
makes
this
shop
different
is
that
it
offers
more
personal
services.
A.
What???
B.
Who???
C.
Whatever???
D.
Whoever
【答案解析】
A
【详解】考查主语从句。句意：这家商店的不同之处在于它提供更多的个人服务。what引导名词性从句时本身有意义，即表示“什么”或“所……的事物”(="the"
thing(s)that)，同时又在从句中充当一定的成分。whoever引导名词性从句时相当于anyonewho或those
who。whatever引导名词性从句时相当于anything
that，故选A。
12.
While
some
behaviors
may
seem
strange
to
you,
remember
?????
?????
you
consider
normal
probably
seems
just
as
unusual
to
others.
A.
it;
that???
B.
what;
that
C.
that;
what???
D.
which;
that
【答案解析】
C
【详解】考查宾语从句和主语从句。句意：虽然有些行为对你来说可能很奇怪，但请记住，你认为正常的行为对别人来说可能也不寻常。第一空为宾语从句，从句结构完整用that起连接作用，第二空为主语从句，从句中consider缺少宾语，应该用what，故C项正确。
13.
It
has
been
pointed
out
________
plays
a
vital
role
in
driving
away
one’s
anxiety
is
one’s
sweet
childhood
memories.
A.
what
that???
B.
which
C.
that???
D.
that
what
【答案解析】
D
【详解】考查名词性从句。句意：有人指出，驱除焦虑所起着至关重要的作用是童年美好的回忆。本句时一个主语从句，it作形式主语，真正的主语为that
what
plays
a
vital
role
in
driving
away
one’s
anxiety
is
one’s
sweet
childhood
memories.，主语从句中又有一个主语从句，且此主语从句中缺少主语，所以用what引导。故选D。
【点睛】本题考查名词性从句，首先判断属于哪种名词性从句，再判断从句缺少什么成分，如果缺少主宾表，用what，不缺少成分和意思用that，缺少疑问词根据句意判断。本题中需要分析主语从句中还有一个主语从句，且缺少主语，故用what引导。
14.
_______
in
the
regulations
that
you
shouldn’t
tell
other
people
the
password
of
your
e-mail
account.
A．As
is
required???
B．It
is
required
C．It
requires???
D．What
is
required
【答案解析】
B
考查主语从句。句意：根据规定，你不应该告诉别人你电子邮件账户的密码。固定句式：It
is
required
that---“据要求，根据规定”，it在句中作形式主语，真正的主语是后面that引导的主语从句。故选B。
15.
In
the
past,
____didn’t
make
much
of
a
difference
to
your
success____
you
had
a
good
family
background.
A.
that;
if???
B.
it;
whether???
C.
that;
whether???
D.
it;
if
【答案解析】
B
【详解】考查形式主语和主语从句。句意：在过去，是否有良好的家庭背景对你的成功并没有太大的影响。此处是it作形式主语，后面的主语从句是真正的主语，且if作“是否”讲时不能引导主语从句，故答案为B。
16.
(2015·陕西)
____________
the
delayed
flight
will
take
off
depends
much
on
the
weather.
A.
Why???
B.
When
C.
That???
D.
What
【答案解析】
B
试题分析：考查名词性从句的连接词。句意：被延误的航班何时起飞依天气而定。题干中主句的谓语动词为depends，为此前面是主语从句。Why在主语从句中做原因状语；when在主语从句中作时间状语；that在主语从句中不做任何成分；what在主语从句中作主语或宾语。根据语境判断主语从句中缺少时间状语，故选B项。
17.
________
no
wonder
that
they
had
so
much
trouble.
A.
This
is???
B.
That
is
C.
It
is???
D.
There
is
【答案解析】
C
【详解】考查主语从句。句意：难怪他们有这么多麻烦。分析句子可知，本句是主语从句，it是形式主语，真正的主语是that
they
had
so
much
trouble。从句表示的“他们有那么多的麻烦”不惊讶。故选C项。
18.
—It's
so
convenient
to
use
cell
phones
to
pay
the
subway
fare.
—Yes.
_________
thought
of
the
idea
is
really
brilliant.
A.
Wherever???
B.
Whenever??
C.
Whatever???
D.
Whoever
【答案解析】
C
考查名词性从句。
【详解】句意：——用手机付地铁的费用真是很方便。——是的，想出这个想法的人真的很棒。本题考查主语从句，whoever引导主语从句，相当于anyone
who凡是……的人；wherever无论哪里；
whenever无论何时；
whatever无论什么，都不符合句意。故选C。
【点睛】本题考查名词性从句，首先判断属于哪种名词性从句，再判断从句缺少什么成分，如果缺少主宾表，用what，不缺少成分和意思用that，缺少疑问词根据句意判断。
19.
_____
some
people
regard
as
a
drawback
is
seen
as
a
plus
by
many
others.
A.
Whether???
B.
What?????????????
?????????????
C.
That???
D.
How
【答案解析】
B
试题分析：句意：一些人所认为的不利条件，在别的人看来就是一种有利因素。what引导主语从句，在句中作为regard的宾语，构成regard
sth
as
sth把…看成…,故选B
考点：名词性从句
点评：名词性从句是高考必考点，名词性从句分为主语、宾语、表语、同位语从句四种，除宾语从句外，同位语从句和定语从句的区别是高考常考点。同位语从句和定语从句的区别在于：that作为关系代词，可以引导定语从句，充当句子成分，在从句中作宾语时可以省；
that引导同位语从句时，起连词的作用，没有实际意义，不充当句子成分，一般不能省略。
20.
—What
do
you
think
it
is
that
has
contributed
to
his
huge
success?
—________
he
keeps
focused
on
what
he
is
doing.
A.
Because???
B.
How???
C.
Whether???
D.
That
【答案解析】
D
考查名词性从句。句意：--你认为他巨大成功的原因是什么？--他专注于所做的事情。What是代词，答语应该是代词或名词或名词性从句。Because状语从句排除。B.
How和C.
Whether都可以接名词性从句，但句意不符。That只引导从句，无实在意义。选D.主语从句
1.
It
is
a
truth
well
known
to
all
______China
has
become
one
of
the
strongest
countries
in
the
world.
A.
where?????????????
B.
which?????????????
C.
that?????????????
D.
who
2.
It
is
no
use
_____
for
your
mistakes
now.
_____
you
need
to
do
is
correct
them
as
soon
as
possible.
A.
crying;
What?????????????
B.
crying;
That?????????????
C.
to
cry;
That?????????????
D.
to
cry;
What
3.
_____
you
can
succeed
or
not
mainly
depends
_____
how
hard
you
work
at
it.
A
That;
on?????????????
B.
What;
upon?????????????
C.
Whether;
upon?????????????
D.
If;
on
4.
______
is
surprising
to
us
is
that
Tom,
for
______
English
was
once
boring,
can
speak
English
fluently
as
though
he
were
a
native
speaker.
A.
What;
whom?????????????
B.
What;
whose
C.
It;
whose?????????????
D.
As;
whom
5.
_________
is
known
to
all
is
that
the
earth
is
smaller
than
the
sun.
A.
As?????????????
B.
What
C.
It?????????????
D.
Which
6.
_______
is
known
to
us
all
that
the
old
scientist,
for
_______
life
was
hard
in
the
past,
still
works
hard
in
his
eighties.
A.
As;
whose?????????????
B.
It;
who?????????????
C.
As;
whom?????????????
D.
It;
whom
7.
_____
makes
this
shop
different
is
that
it
offers
more
personal
services.
A.
What?????????????
B.
Who?????????????
C.
Whatever?????????????
D.
Whoever
8.
Some
people
believe
_______
has
happened
before
or
is
happening
now
will
repeat
itself
in
the
future.
A.
whatever?????????????
B.
whenever
C.
wherever?????????????
D.
no
matter
what
9.
______
Qidong
won
the
title
of
National
Civilized
City
made
people
in
the
city
very
excited.
A.
That???
B.
What
C.
Which???
D.
Whether
10.
With
your
help,
there
is
no
doubt
________
________
our
plan
is
meant
for
will
work
out
successfully.
A.
what,
that?????????????
B.
that,
whether
C.
that,
what?????????????
D.
whether,
what
11.
_____
makes
this
shop
different
is
that
it
offers
more
personal
services.
A.
What???
B.
Who???
C.
Whatever???
D.
Whoever
12.
While
some
behaviors
may
seem
strange
to
you,
remember
?????
?????
you
consider
normal
probably
seems
just
as
unusual
to
others.
A.
it;
that???
B.
what;
that
C.
that;
what???
D.
which;
that
13.
It
has
been
pointed
out
________
plays
a
vital
role
in
driving
away
one’s
anxiety
is
one’s
sweet
childhood
memories.
A.
what
that???
B.
which
C.
that???
D.
that
what
14.
_______
in
the
regulations
that
you
shouldn’t
tell
other
people
the
password
of
your
e-mail
account.
A．As
is
required???
B．It
is
required
C．It
requires???
D．What
is
required
15.
In
the
past,
____didn’t
make
much
of
a
difference
to
your
success____
you
had
a
good
family
background.
A.
that;
if???
B.
it;
whether???
C.
that;
whether???
D.
it;
if
16.
(2015·陕西)
____________
the
delayed
flight
will
take
off
depends
much
on
the
weather.
A.
Why???
B.
When
C.
That???
D.
What
17.
________
no
wonder
that
they
had
so
much
trouble.
A.
This
is???
B.
That
is
C.
It
is???
D.
There
is
18.
—It's
so
convenient
to
use
cell
phones
to
pay
the
subway
fare.
—Yes.
_________
thought
of
the
idea
is
really
brilliant.
A.
Wherever???
B.
Whenever??
C.
Whatever???
D.
Whoever
19.
_____
some
people
regard
as
a
drawback
is
seen
as
a
plus
by
many
others.
A.
Whether???
B.
What?????????????
?????????????
C.
That???
D.
How
20.
—What
do
you
think
it
is
that
has
contributed
to
his
huge
success?
—________
he
keeps
focused
on
what
he
is
doing.
A.
Because???
B.
How???
C.
Whether???
D.
That
