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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, d+ C2 e0 c1 @　　1)并列谓语的时态一致。
　　【例如】Yesterday I went shopping, bought some books and had dinner at a good restaurant.
　　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。
) T1 }0 _- N# b7 [7 o4 n1 `　　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。
* p  R) A' \# X: ~8 c　　【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。
, T9 f3 z, k) ~0 J$ s　　【例如】
5 e7 t" l( `# G; V9 d　　He told me he made a big mistake.
2 {- h$ c, ]4 v3 S( ?　　He told me he would go to Beijing the next day.
　　He told he had finished his task.
　　The teacher told students that the earth moves around the sun.(客观真理)
% C0 L6 `: T) F5 U　　3)定语从句和比较状语从句时态不受主句影响。
; r( U4 m- L4 h: z% z2 g  o　　【例如】
　　The universityswhereshe is studying was founded in 1950.
　　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。
　　【例如】
( G% Q# q& `# [6 f4 i3 Y! a5 O8 f　　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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