主将从现情况小结
主将从现问题是中考考点之一。它是指在时间状语从句和条件状语从句中,如果主句是一般将来时,从句用一般现在时替代一般将来时。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。
练习 单项选择(中考题):
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)
A comes 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:1-5BCDBA 6-10 ACCBC
参考资料:http://school.ecp.com.cn/resource/Article_Print.asp?ArticleID=7644