英语常用语法：时态一致

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英语常用语法：时态一致

　　1)并列谓语的时态一致。
9 c) Y  p5 n, V( P7 |$ H) S1 X　　【例如】Yesterday I went shopping, bought some books and had dinner at a good restaurant.
- c, r/ d' C4 ?; x4 \# a  W% I　　The soldier looked at him, exchanged glances with his comrade and took out the gun.
6 I" ^* t3 S7 T) @! t9 b* L& }　　2)主从复合句的时态一致。
　　a)主句为现在时、将来时、现在完成时，宾语从句谓语动词时态按情况而定。
　　【例如】
　　I wonder what will happen tomorrow.
( |: ~7 j$ I: ]/ i5 A% P　　I wonder what happened to him yesterday.
　　I wonder what is happening now outside.
　　b)主句为过去时态，宾语从句一般用过去时态。如果宾语从句说明的是客观真理，用一般现在时。
% l. |6 I. k, A9 h0 s2 n　　【例如】
　　He told me he made a big mistake.
　　He told me he would go to Beijing the next day.
　　He told he had finished his task.
1 V2 M/ f" t3 ?  P　　The teacher told students that the earth moves around the sun.(客观真理)
8 q2 G1 k7 M' w; e" u- ]! _　　3)定语从句和比较状语从句时态不受主句影响。
1 ]7 X# d7 O* y7 h% y　　【例如】
　　The universityswhereshe is studying was founded in 1950.
* b9 D/ V+ z# N  }$ k# K　　You now speak English better than you spoke it last year.
　　4)时间和条件状语从句中，常用现在时表示将来。
* v$ K5 Q: T; V: F　　【例如】
3 k' [8 ?+ }' S2 h5 U$ \　　We will cancel our trip if it rains tomorrow.
8 v. I& g6 a5 N  ?% R　　I will go to visit the Summer Palace as soon as I arrive in Beijing.

4 s7 Y7 V# P% y# I8 F$ F/ ?