玄默-南南合作
条件状语从句和时间状语从句与主句时态一致的情况
主从复合句中时态一致
(“主过从过,主将从现,主现从任”原
则)
主从复合句中时态的一致是中考考点之一。主要有以
下几种情况:
【主将从现】
在以when,after,as soon as等引导的时间状语<
br>从句以及以if,unless等引导的条件状语从句中,如
果主句是一般将来时,从句则用一般
现在时。例如:
I'll tell her the good news when she
comes
back.当她回来的时候,我将把这个好消息告诉她。
If it
doesn't rain, he will come here on
time.
如果不下雨,他会按时来这儿的。
常见的有以下三种情况:
一、条件状语从句的主句是一般将来时,那么从句常
常用一般现在时。如:
When I grow up, I’ll be a nurse and look after
patients. 我长大后要当一名护士,照顾病人。
二、如果主句是祈使句,那么从句通常要用一般现在
时。
如:Don’t laugh at me when I make a mistake.
我犯错误的时候不要笑话我。
三、如果主句是含有情态动词的一般现在时,根据需
要从句多用一般现在时。
如:You should be quiet when you are in the
reading room.
在阅览室时应保持安静。
【主过从过】
在含有宾语从句的主从复合句中,当主句的谓语动词
为过去时态时,从
句须用表示过去的某种时态。例如:
He asked when they would go
to the party.
他问他们什么时候将去参加聚会。
Miss Green said she had been to Beijing
before.
格林小姐说她以前曾经去过北京。
【主现从任】
在宾语从句中,当主句的时态为一般现在时、现
在进行时、现在完成时等时
态时,后面从句时态不受
主句限制,可根据情况,选用各种适合的时态。例如:
Do you know when we'll have a
football
match?你知道我们什么时候举行足球赛吗?
You know
he has gone to Shanghai.你知道他
已去上海了。
【特别关注】
1.当宾语从句表述的是客观事实、科学真理、现在的
习惯动作以及格
言等时,其时态不受主句限制,而用
一般现在时。例如:
The teacher
told us that light travels faster than
sound.
老师告诉我们光速比音速要快。
When
I was a student, my teacher often told us
that
time and tide wait for no man.
当我还是学生的时候,老师常常告诉我们,岁月不
等人。
2.在+点时间句型中,主句通常用现在完成
时,从句用一般过去时。例如:
He has worked at the factory since he came
here.
自从他来到这儿,他就一直在这家工厂上班。
另外,在句型段时间+since+从句中,since
后面的从句要用一般过去时。例如:
It's a long time since we met last.
自从我们上次见面以来已经有好长时间了。
3.在复合句中,如果主、从句表示的动作或状态都发生在过去,而且有先后,则在先的用过去完成时,在
后的用一般过去时。例如:
When he got there, the train had left.
当他到那儿的时候,火车已经开了。
He said he had visited the
school before.
他说他以前参观过那所学校。
【小试身手】
1. If he
___ harder , he will catch up with us
soon.
(04 北京)A. study B. studies C.
will study D.
studied 2. I will go swimming
with you if I ___
free tomorrow.
(04哈尔滨)A. will be B. shall be C. am
D.
was
you ___ a chance to study in a
foreign
country ,just take it .
(04
苏州)A. getting B. had got C. will get D. get
4. Don’t leave until he ___ back.()
A.
have come B. comes C. will come D. came
5.
“ Shall we have the volleyball match
tomorrow?” “ Oh, it will be put off if it
____.(04
黄冈)
A. snows B. is snowing C.
snowed D. will
snow
6.-Tell him about the
news when he ____ ,John.
- Yes, I
will.(04 宁波)
come coming
ow
we will go to the city park____ it is
sunny.
(05 安徽) soon as B. when C.
if D. as
don’t leave until your teacher
___back.
(05河南)A. will come B .came C. comes D.
is
coming
9 .I want to know if
there ___a sports meeting
next month . If they
___ it , I must get ready for
it。(05青岛)
A. is,will hold B. will be, hold
C. will be, will hold D. will have, hold
10. -Mary, what about going boating if it
___tomorrow.
-Good idea.
A.
not rain B. will rain C. doesn’t rain D. won’t
rain
参考答案:1-5 BCDBA 6-10 ACCBC
团总支-宽的拼音
高美美-思考英文
记者用英语怎么说-切比雪夫多项式
coach怎么读-lurking
哗众取宠的意思-orbit
金灭辽-言不出众的意思是什么
跟前的拼音-参差
削字开头的成语-高三英语作文
-
上一篇:时间状语从句练习
下一篇:状语从句(原因,目的,时间,地点)