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save是什么意思人教版初中英语情态动词知识点经典练习题

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2021-01-20 00:30
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大事渲染-save是什么意思

2021年1月20日发(作者:行李清单)
初中英语情态动词知识点及经典练习题

情态动词知识点总结:

(一)情态动词的定义





情态动词表示说 话人对动作的态度,
比如:需要,
可能,
意愿,
猜测或者怀疑等等。

(二)情态动词的特点



1
)有一定词义;

2
)不受主语人称和数的变化影响;

3
)与主要动词的原形(或称 不带
to
的不定式)一起构成谓语(除
ought to
作固定词组
看待)


4
)否定句中,在情态动词后面加
not


(三)情态动词有:
must, shall, should, had better
词形无变化

can(could), may(might), will(would)
词形有变化

need
既可以是情态动词,也可以是实义动词,具有双重性。

(四)情态动词的基本用法

1. can (could)

1
)表示会做某事,有能力做某事。意思
=
be
able
to
其否定式
can

t
表示“不能”

在过去时中用
could

couldn

t.

(即有种能力,
尤其是生来具备的能力,
此时
may

mu st
均不可代替它)


He can speak English, but he can’
t speak Japanese.
= He is able to speak English, but he isn

t able to speak Japanese.
I could smile but I couldn

t speak when I was 2 months old.
= I was able to smile but I wan
s’
t able to speak when I was 2 months old.
区别:
1

can
只用于现在时和过去时
(could), be able to
可用于各种时态。

They will be able to tell you the news soon.
2

be able to
不与
can
连用,但可以和其他情态动词或助动词连用。

He may be able to speak English very well some day in the future.
3

用在过去时中,
could
经常表示能够做某事,
事实上不一定去做,

was∕were
able
to
则表示“过去做成了某事”。在否定句中两者可通用。

2
)用于征求意见

——
Can /Could /May /Might I(we) do sth?
——
Yes, you can/may. / Of course you can.
——
No(Sorry), you can

t. /mustn

t.
注意:①此处的
co uld

might
都不表示过去,只是语气上的委婉,不用作回答。


②否定回答中,表示对他人造成一定伤害或影响,或表示违反了某种规定或法律时 ,

must
n’
t
较好。

e.g.
——
Could I take the book out of the library?
——
Sorry, you mustn

t.

——
May I smoke here?
——
I

m afraid you mustn

t.

③表示过去能力时,
could
提问,只能用
could
回答。

e.g.
——
Could
you
ride
a
bike
when
you
were
4
years
old?
——
No,
I
couldn

t.
3
)表提出意见或请求

Can/Could you (please) do sth? = Would you (please) do sth?
(此句型中
some


any


e.g. Could you please give me a hand?
Would you please pass me some salt?
4
)表示允许或承诺
=may
e.g. OK. You can /may come and find me at any time tomorrow.
5< br>)表示有一定把握的推测,用于否定句和疑问句。此时
can’t
译为“不可能”

肯定句

must
。表示没有把握的推测,用
may /might


e.g.
——
The window is broken. Who did it?

——
It may be Mary.

——
It can

t be Mary. The window is in the men

s toilet.

——
Can it be anyone else?

——
Then, it must be Bob. I saw him go into the toilet just now.
He can’t (couldn’t) have enough
money for a new car.


他不可能有足够的钱买
新车。

【例题】—
I
think
Miss
Gao
must
be
in
the
library.
She
said
she
would
go
there.

No.
She
__be
there,
I
have
just
been
there.

’t
’t
’t
’t
【解析】根据下文“我刚去过那儿”可知,应为“不可能”,can’t
表示推测
[
答案
] A

2. may (might)
may
表示“可以,可能”
,否定形式
may not

表示“不可以”


1


表示 没有把握的推测,
“可能,也许”
。可以指过去时间,也可以指现在时间,但语气
更加 不肯定。

e.g. He may have a lot of work to do. = Maybe he has a lot of work to do.
You may be right. = Maybe you are right.
2
)表示请求

“我可以……吗?”

表示请求、许可,比
can
正式

e.g. You may /can go now.
——
May I use your pen?
——
Yes, you may. / Yes, please. / Go ahead.
——
No, you can

t. / mustn

t.
在回答以
may
引起的问句时,
多避 免用这个词,
而用其它方式,

Yes,
please.
/
Certainly.
/ Please don’t ./ You’d better not. / No, you mustn’t.等,以免显得太严峻或不
客气。

3



表示希望、祈求、祝愿
,常可译为“祝愿”。通常是用
may
+

+V
例如:
May
you
have
a good time.
祝你过得愉快。
May you be happy!
祝你幸福!
May you succeed
!祝你成功!


3. must
must
表示“必须,肯定,一定”


否定形式
mustn

t = must not
表示“禁止”


1
)表示必须,意思同
have to
e.g.
——
Must I do it now?

——
Yes, you must.

——
No,
you
don

t
have
to.
/
No,
you
needn

t.
(
注意:否定回答不用
mustn

t)
Children mustn

t play on the road because it

s too dangerous. (mustn

t

表“禁止”
)
He doesn

t have to go away from here.
=He needn

t leave here.
区别:①
must
表达主观意愿的“必须”

have to
表达客观上或按道理说“不得不”


e.g. I must study hard.
It

s too late. I have to go now.


must
没有人称和时态的变化,而
have to
有。

e.g. He had to walk back home because he lost all his money.
Mom
will
be
away
for
a
week,
so
we
will
have
to
do
the
cooking
by
ourselves.
2
)表示有把握的 肯定句中的推测,
“肯定,一定”
,只用于肯定句。

He must be ill. He looks so pale.


他准是病了。他的脸色苍白。

注意其反意问句的构成形式:

< br>当
must
表示肯定的判断、推测时,其反意疑问句要用实际问句的助动词来构成。如:

She must have seen the film before
,hasn’t
she?(
注意反意疑问句的后半部分
)
You must have met uncle Wang in the shop yesterday
,didn’t
you? (
注意反意疑问句
的后半部分
)


need
表示“需要”
,否定形式
needn

t = need not
“不必、不需要”

1)
、作情态动词,仅用于否定句和疑问句。

e.g.
He needn

t go home early yesterday. = He didn

t need/have to go home early
yesterday.
Need I call him right now?
——
Yes, you must.(
注意:肯定回答不用
need)

——
No, you needn

t. /No, you don

t have to.
2

、作实义动词,
此时 有人称、数和时态的变化,如果是人作主语后边多接动词不定式:
need sth./sb.
need to do sth.
否定形式
don

t need to = don

t have to
表示“不必”

e.g. I need some help.
He needed to go home early yesterday.
Do I need to call him right now?
——
Yes, you do. /
——
No, you don

t.

如果是物作主语,一般用
need doing

need to be done
这种情况下应注意两点:
< br>①.主动形式的动名词
doing
具有被动的含义;②.该动名词可以改为其动词不定式 的被动形
式而句子的意义不变。例如:
.
The
door
needs
painting.
=
The
door
needs
to
be
painted.
那扇门需要油漆一下。
Your car needs mending. = Your car needs to be repaired.
你的
车需要维修了。

3


need
作名词

be in (great) need of sth = need sth (badly)
“非常需要某物”

meet the need
“满足需要(需求)


there is/was no need (for sb) to do sth
“某人没必要做某事”


5. dare
的用法:

dare
意为“敢、敢于”,用法近似于
need
,有两种词性:


1

dare
作为情态动词,多用于否定句、疑问句或条件句中< br>,无第三人称单数形式,只有
一般现在时和一般过去时。如:
Dare he tell them what he knows?
他敢告诉他们所知道的
情况吗?I daren’t ask her –
will you do it for me?
我可不敢问她,你能帮我问问吗?


2

dare
作为实义动词,此时有人称、数及时态的变化
。如:He doesn’t dare to break
his promise.
他不敢食言。



注意:
在口语中,
dare
的各种形式常与不带
to
的不定式连用 。
如:
Do
you
dare
tell
her
what I said?
你敢告诉她我说的话吗?I didn’t dare look at him.我不敢看他

归纳:
need

dare
的用法





1

need

dare
既可用作情 态动词,也可用作实义动词。用作情态动词时,通常不
用于肯定句而主要用于否定句和疑问句。用作实义 动词时,可用于各种句式。

2
、其他用法:I dare say…为固定习语,不是“我敢说”而是“我想”


I dare day he’ll come again.



我想他会再来的。

Needn

t have done:
表示本没必要做而做了


6. shall
的用法:

1
)表征询意见,用于第一、第三人称疑问句。

Shall I get some tea?


我给你点茶好吗?

Shall the boy wait outside?

让那男孩在外面等吗?

2
)表说话人的意愿,有“命令、允诺、警告、决心”等意思,用于第二、第三人称陈述句。

You shall do as I say.


按我说的做。
(命令)

You shall have my answer tomorrow.


你明天可以得到我的答复。
(允诺)

He shall be sorry for it one day, I tell you.


有一天他会后悔的,我告诉你。
(警
告)

Nothing shall stop us from carrying out the plan.

什么也不能阻止我们执行这项
计划。
(决心)

归纳:在英语中,我们可以用其他多种方式提出我们的建议或征求对方意见。

(1).
用“Let's do...”来提出建议。如:
Let's go for a walk after supper.
(2).
用“What/How about. ..?”来提出建议;
about
后接名词或动词
ing
形式。如:
What
about/How about a drink? What about/How about taking Tom with us?
(3).

“Why not...?”来
提出建议
,表示“
何不
……”not
面后接
动词
原形。
“Why
not...?”实际上是“Why
don't
you/we...?”的简略形式。如:
Why
not
meet
at
the
school
gate at eight? Why don't we stay here another day?
(4).
用“Would you like...?”来提出建议,意思是“你想要……吗?”Would you like

可接名词或不定式。如:
Would you like a cup of tea?
Would you like to go and see
her?
因此,如果我们说:“去游泳好吗?”英语中可有这样几种表达法:
Shall we go for a
swim?
Let's go for a swim

shall we?
What about/How about going swimming?
Why
not go for a swim?
Would you like to go for a swim?
What do you think of going
for a swim?

6

will
的用法

1

、表意愿,用于各种人称陈述句。
“愿意”

I will do anything for you.


我愿为你做任何事。

2

、表请求,用于疑问句。

Will you close the window? It’s a bit cold.



请你把窗户关上好吗?有点冷。

Won’t you drink some more coffee?



再来一点咖啡好吗?

注意:

1

will

there be
句型中的形式及其句式变换。

由于“一般将来时”的结构可以用“will+动词原形”来表示,所以
there be
句型的一般将
来时的形式就是
there will be

(一定不能说
there will have
)例如:
There are many
students in our school.→There will be many students in our school. The
re will be
a sports meeting next week.
一定不能说:
There will have a sports meeting next week.
2

will

be going to do something
区别:

①. be going t o
表示近期、眼下就要发生的事情,
will
表示的将来时间则较远一些,如:
He is going to write a letter tonight. He will write a book one day.
②. be going to
表示根据主观 判断将来肯定发生的事情,
will
表示客观上将来势必发生的
事情。
He is seriously ill. He is going to die. He will be twenty years old.
③. be going to
含有“计划,准备”的意思,而
will
则没有这个意思,如:
She is going
to lend us her book.
He will be here in half an hour.
④.在有条件从句的主句中,一般不用
be going to,
而多用
will,
如:
If any beasts comes
at you, I'll stay with you and help you.

7. should
的用法

1


表 义务。
意为“应该”
(某件事宜于做)

用于各种人称。
否定形式< br> should
n’
t
=
should
not
表示“不应该”

You should be polite to your teachers.


你对老师应该有礼貌。

2

、表推测,意为“想必一定、照说应该、估计”等。

The film should be very good as it is starring first- class actors.


这部新电影是一流演员主演的,估计拍得很好。

They should be home by now.


照说他们现在应当已经到家了。



的用法

1
)表意愿

I said I would do anything for you.


我说过我愿意为你做任何事。

2
)表委婉地提出请求、建议或看法。

常见句型:①表请求
Would you please do

?
——
OK

. / Sorry,

.


Would you like sth?
——
Yes, please. / No, thanks.
Would you like to do sth?
——
I

d love to.

——
I

d love to, but

.
(
注意:以上句型中,
some
不变
any)
9. ought to
1
)表义务,意为“应该”(因责任、义务等该做)
,口气比
sho uld
稍重。

You oughtn’t to smoke
so much.


你不应该抽这么多烟。

2
)表推测,暗含很大的可能,语气较弱。

There’s a fine sunset; it ought to be a fine day tomorrow.


今天有晚霞,明天
应该是个好天。


10

used to
表示过去的习惯动作或状态,现在不复发生或存在。疑问式和否定式有两种。

I usedn’t (didn’t use) to smoke.



我过去不抽烟。

Used you (Did you use) to go to school on foot?


你过去常步行去学校吗?

11

had better do
表示“最好是做……”
,否定形式
had better not do
e.g. You

d better not drink so much coffee.

大事渲染-save是什么意思


大事渲染-save是什么意思


大事渲染-save是什么意思


大事渲染-save是什么意思


大事渲染-save是什么意思


大事渲染-save是什么意思


大事渲染-save是什么意思


大事渲染-save是什么意思



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