英语常用语法：时态一致

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英语常用语法：时态一致
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0 ^3 N1 K' L. H6 ^' a- K2 b/ ~　　1)并列谓语的时态一致。
2 ~+ p5 w+ K* Y7 R* b' t$ S4 v' R　　【例如】Yesterday I went shopping, bought some books and had dinner at a good restaurant.
& w& z  x( I4 L( ?- E+ {+ j) u6 _+ G　　The soldier looked at him, exchanged glances with his comrade and took out the gun.
　　2)主从复合句的时态一致。
' f7 Q! d. @% q　　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。
8 }# `( n: r) Z7 v, t9 m　　【例如】
　　I wonder what will happen tomorrow.
　　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。
　　【例如】
' I+ k- g9 P( P　　He told me he made a big mistake.
　　He told me he would go to Beijing the next day.
; H7 Y' w( r0 n6 X* I　　He told he had finished his task.
- S3 w0 d+ g6 q0 Y: U4 G　　The teacher told students that the earth moves around the sun.(客观真理)
4 k& s& K0 a  [, n6 n% i　　3)定语从句和比较状语从句时态不受主句影响。
　　【例如】
8 i" E, p6 o' X$ O　　The universityswhereshe is studying was founded in 1950.
　　You now speak English better than you spoke it last year.
4 L/ J7 v2 Q( g' g2 F　　4)时间和条件状语从句中，常用现在时表示将来。
2 y+ s: ~9 u( s6 q# v　　【例如】
& `9 N5 o9 `' u* N4 o8 B　　We will cancel our trip if it rains tomorrow.
　　I will go to visit the Summer Palace as soon as I arrive in Beijing.

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