一、在if, unless 等词引导的条件状语从句,when, till/until, as soon as, before等词引导的时间状语从句,以及no matter + wh-, however, even if/even though 等引导的让步状语从句中,当主句为一般将来时(或情态动词+动词原形)时,从句谓语动词常用一般现在时表示将来。如:
1. --- When will you come to see me, Dad?
--- I will go to see you when you ______ the training course. (北京2003春)
A. will have finished
B. will finish
C. are finishing
D. finish (D)
2. Hundreds of jobs ______ if the factory closes. (北京2001春 )
A. lose B. will be lost
C. are lost D. will lose (B)
3. In such dry weather, the flowers have to be watered if they ______.
(上海2001)
A. have survived
B. are to survive
C. would survive
D. will survive (D)
注:if 引导的条件状语从句中也可用be to do 或be doing 的形式表示将来。
二、在含有“by the end of ...”或 “by the time...”的句式中,如果其表示的是过去时间,主句常用过去完成时; 如果其表示的是将来时间,主句则常用将来完成时。如:
1. By the end of last year, another new gymnasium ______ in Beijing.
(上海2003春)
A. would be completed
B. was being completed
C. has been completed
D. had been completed (D)
2. He will have learned English for eight years by the time he______ from the university next year. (上海2002)
A. will graduate
B. will have graduated
C. graduate
D. is to graduate (C)
三、在 “祈使句 + and / or +并列分句 ”的句型中,并列分句中谓语动词常用一般将来时。如:
Try some of this juice --- perhaps you ______ it.
A. like B. will like
C. have liked D. liked (B)
四、在“ It /This/That + be +序数词+time +that 从句 ”的句型中,要注意主从句时态的一致。如果主句为一般现在时或一般将来时,从句谓语常用现在完成时;如果主句为一般过去时,从句谓语则常用过去完成时。如:
I was lucky actually, because that ______ the second time I ______ China that year.
A. was; had visited
B. was; visited
C. is; have visited
D. was; have visited (A)
五、在“ It + be + 一段时间 + since从句”的句型中, 如果主句为一般现在时或现在完成时,从句常用一般过去时;如果主句为一般过去时,从句则常用过去完成时。如:
1. They asked me to have a drink with them. I said that it was atleast ten years since I ______ a good drink. (MET’88)
A. had enjoyed
B. was enjoying
C. enjoyed
D. had been enjoying (A)
2. --- What was the party like?
--- Wonderful. It’s years ______ I enjoyed myself so much. (NMET’93)
A. after B. before C. when D. since (D)
六、在“It+be+一段时间 + before从句”的句型中,如果主句为一般将来时,从句常用一般现在时;如果主句为一般过去时,从句则常用一般过去时。如:
1. It will be six years before we ______ again.
A. will meet B. meet C. met D. have met (B)
2. It ______ not long before he told us about the affair.
A. will be B. is C. had been D. was (D)
七、在“ It is (high/about)time+that从句”的句型中,从句谓语动词常用一般过去时态。如:
It is high time we ______.
A. start B. started C. will start D. have started (B)
八、在 “would rather+从句”的句式中,从句常用一般过去时态。如:
--- Who would you rather ______ there with you?
--- Jenny.
A. go B. going C. to go D. went (D)
九、在 “hardly /scarcely...when /before...和 no sooner...than...”的句式中,从句常用一般过去时态,主句常用过去完成时态。如:
Scarcely had he gone into the room when the phone ______.
A. rang B. had rung C. would ring D. ring (A)