英语中 主将从现 是什么?能详细一点的最好希望有例子 英语
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【答案】 在复合句中,由when ,as soon as ,after ,before ,until ,unless等引导的时间状语从句和由if 引导的条件状语从句,都符合“主将从现”的原则,即主句是一般将来时（或用一般现在时表示一般将来时的意义）,从句要用一般现在时.这是历年中考的考查热点.
①一般将来时 ②一般现在时
will do am/is/are
am /is/are going to do do/does
例：I’ll go to the zoo if it ________ tomorrow.
A.doesn’t rain B.will rain C.rains D.won’t rain (2005年甘肃省)
答案：A
I’ll give the note to her as soon as she back.(e)
答案：es
中考链接：（下面这些题都是2004和2005年各省市的中考题）
1.If he _______ harder,he will catch up with us soon.
A.study B.studies C.will study D.studied (2004年北京市)
2.We’ll go to visit Tian’anmen Square ________ it doesn’t rain tomorrow.
A.if B.as soon as C.when D.since (2004年河北省)
3.– Do you know if we will go to the cinema tomorrow?
-- I think we’ll go if we _______ too much homework.
A.will have B.had C.won’t D.don’t have (2004 年长沙市)
4.Frank ______ to see his grandma if he ______ free tomorrow.
A.will e,will be B.es,is
C.will e,is D.es,will be (2004年吉林省)
5.I am waiting for my friend.________ ,I will go swimming alone.
A.If he doesn’t e B.If he won’t e
C.If he will e D.If he is ing (2004年陕西省)
6.– Will you e to the dinner party?
-- I won’t e unless Jenny __________ .
A.will be invited B.can be invited C.invited D.is invited (2004年安徽省)
7.Tomorrow is Sunday,Jim will go hiking with his friends if it __________ .
A.isn’t rain B.doesn’t rain C.won’t rain D.don’t rain (2004年哈尔滨市)
8.– How do you go to the zoo tomorrow?
-- If it _________ tomorrow,I’ll go there by car.
A.rains B.rain C.raining D.will rain (2004年甘肃省)
9.Young man!If you _________ again,you’ll lose your job.
A.will be B.were C.are D.have been (2004年南宁市)
10.Can you play games with us when your homework _________
A.is finished B.will finish C.finish
D.will be finished (2004年四川省资阳市)
11.You will stay healthy ________ you do more exercises,such as running and walking.
A.if B.how C.before D.where (2004年北京市海淀卷)
12.I won’t believe that little Bob can run 100 metres in 15 seconds ______ I see it with my own eyes.
A.until B.after C.when D.if (2004年黑龙江省)
13.– I don’t know _______ he will e tomorrow.
-- Don’t worry._______ he es,I’ll let you know.
A.whether…If B.if …Whether C.when …Whether
D.that… If (2004年安徽省芜湖市)
14.– It’s 9 o’clock now.I must go.
-- It’s raining outside.Don’t leave ______ it stops.
A.when B.since C.while D.until (2005年北京市)
15.Frank _______ a film if he’s free next Saturday.
A.see B.saw C.has seen D.will see (2005年北京市)
16.If Mr Smith ________ back,please let me know.
A.will e B.es C.came D.had e (2005年宁波市)
17.I don’t know if it ______ tomorrow.If it _________ ,I will stay at home.
A.will rain,rains B.rains,will rain C.will rain,will rain (2005年哈尔滨市)
18.The sports meet will continue ________ it rains this afternoon.
A.if B.since C.as soon as D.unless (2005年天津市)
19.– I want to know when ______ have a field trip.
-- We’ll have it when all the work ________.
A.you are,will finish B.you will,finishes
C.you will,is finished D.you will,is finish (2005年辽宁省)
20.We won’t go to the park if it ________ tomorrow.
A.rains B.will rain C.is raining (2005年青海省)
答案：1.B 2.A 3.D 4.C 5.A 6.D 7.B 8.A 9.C 10.A 11.A 12.A 13.A 14.D 15.D 16.B 17.A 18.D 19.C 20.A
内容来源：《初中生学习技巧》