主过从过,主将从现,主现从任精编版

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重温一道引起思绪混乱的题........

After a wonderful meal, they told stories and sang songs by the campfire.

表示“在……之后”的句式:after+从句/doing/n.

after I arrived => After my arrival 在我到达之后

完成同义句转换:

when the plane arrived =

After his arrival, we have a party. =

=

时态使用重大的规则:(12字原则)

主过从过,主将从现,主现从任

【主将从现】

常见的有以下三种情况:

一、When/if引导的主句是一般将来时,从句用一般现在时。

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。

二、如果主句是祈使句,那么从句要用一般现在时。

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,从句多用一般现在时。

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】

常见的有以下二种情况:

1.直接引语变成间接引语

2.宾语从句中,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】

常见的有以下一种情况:

在宾语从句中,当主句的时态为现在的某种时态(一般现在时、现在进行时、现在完成时等)后面从句时态不受主句限制,可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,只能用一般现在时。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。

2.如果主、从句表示的动作是一前一后发生的,则先前的用过去完成,在后的只能用一般过去时态。

When he got there, the train had left. 当他到那儿的时候,火车已经开了。

【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

3.If 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)

es

B.will come

C.would

D.is coming

7.Tomorrow we will go to the city park____ it is sunny.

(05 安徽) A.as soon as B. when C. if D. as

8.Please 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

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